HVAC Text Message Marketing: How to Use SMS to Fill Your Calendar Year-Round

  BOTTOM LINE  

SMS has a 98% open rate and is read within 3 minutes by 90% of recipients.

Email sits at 21.5%. For HVAC contractors, the gap is even more significant — homeowners are not checking email when their AC fails at 7pm or when they are comparing quotes from three companies at once.

HVAC text message marketing fills your calendar year-round through eight specific campaign types: missed-call recovery, booking confirmation and reminder sequences, seasonal pre-booking broadcasts, review requests, estimate follow-ups, past-customer reactivation, maintenance agreement renewals, and referral invites.

This guide covers all eight — with 20+ copy-paste templates, the GoHighLevel SMS campaign build step-by-step, TCPA compliance requirements for HVAC contractors, and the seasonal SMS calendar that prevents slow months.

→ Try GoHighLevel Free for 14 Days — Launch Your HVAC SMS Marketing System

Why HVAC Text Message Marketing Outperforms Every Other Channel for Booking Conversion

98%SMS open ratevs 21.5% for email — and 90% of texts are read within 3 minutes of delivery45%SMS response ratevs ~6% for email — homeowners are 7× more likely to reply to a text than an email$0.008cost per SMS in GoHighLevela 100-contact seasonal broadcast costs under $1 — and typically recovers 8–15 bookings

The open rate alone explains why HVAC text message marketing is underused and overrewarding. Every email sent to a customer has a 78.5% chance of never being seen. Every SMS has a 98% chance of being opened — and a 90% chance it is read within 3 minutes.

For time-sensitive HVAC scenarios — a spring pre-season broadcast, an estimate follow-up, a missed call at 8pm — the speed and open rate of SMS changes the outcome entirely.

What This Guide Covers

1.  The 8 HVAC Text Message Marketing Campaigns That Fill Your Calendar Year-Round

2.  HVAC SMS Marketing Compliance — TCPA Rules Every Contractor Must Know in 2026

3.  How to Build Your HVAC SMS List — Opt-In Methods That Work

4.  Campaign 1–2: Missed-Call Recovery and Booking Confirmation Sequences

5.  Campaign 3–4: Seasonal Pre-Booking Broadcasts and Estimate Follow-Up

6.  Campaign 5–6: Review Requests and Past-Customer Reactivation

7.  Campaign 7–8: Maintenance Agreement Renewals and Referral Invites

8.  HVAC SMS Message Writing Rules — What Converts and What Kills Response Rate

9.  GoHighLevel SMS Setup for HVAC — Campaigns, Workflows, and Smart List Segmentation

10.  QuoteIQ SMS Tools — What’s Native and What Requires GoHighLevel

11.  The HVAC SMS Marketing Seasonal Calendar — 12 Months of Campaigns Mapped Out

12.  Frequently Asked Questions — HVAC Text Message Marketing

1. The 8 HVAC Text Message Marketing Campaigns That Fill Your Calendar Year-Round

Most HVAC shops use SMS for one or two things — usually appointment reminders and the occasional offer. The shops filling their calendars year-round without relying on ads are running all eight of the following campaign types simultaneously, automated through GoHighLevel.

CampaignPurposeTriggerCalendar impact
1. Missed-call recoveryCapture after-hours and peak-season leads who called but couldn’t get throughMissed call receivedRecovers the highest-value leads — homeowners with an immediate need
2. Booking confirmation + remindersConfirm every appointment and reduce no-showsAppointment bookedReduces no-show rate by 25–35%; fills the slot that would have been wasted
3. Seasonal pre-booking broadcastPre-book spring AC tune-ups and fall furnace checks before peak seasonManual send: Early March + Late AugustFills the peak season calendar 4–6 weeks before demand hits — prevents peak-season scramble
4. Estimate follow-up sequenceClose unsold estimates before they go coldEstimate sent (48-hour trigger)Converts 20%+ more estimates — each recovered estimate = $400–$15,000 in revenue
5. Post-job review requestGenerate Google reviews at peak satisfaction momentJob completion (24-hour delay)Improves Map Pack ranking; each new review compounds permanently
6. Past-customer reactivationWake dormant customers before they call a competitorManual send: Spring + Fall8–15% re-engagement rate — a 100-contact list typically books 8–15 jobs
7. Maintenance agreement renewalPrevent agreement lapse; protect recurring revenue base30 days before agreement expiryMaintains renewal rate at 75–85%; prevents revenue loss from lapsed agreements
8. Referral inviteTurn satisfied customers into an unpaid lead source2 weeks after 5-star review receivedReferred customers have 37% higher retention — the cheapest leads your business can generate

2. HVAC SMS Marketing Compliance — TCPA Rules Every Contractor Must Know in 2026

Before running any HVAC text message marketing campaign, every contractor needs to understand the TCPA (Telephone Consumer Protection Act). Non-compliance exposes your business to fines of $500–$1,500 per unsolicited message — and class-action lawsuits that have cost companies millions.

The good news: compliance for HVAC contractors is straightforward when you follow three rules consistently.

Rule 1 — Transactional vs marketing messages: different consent requirements

Message typeDefinitionConsent required?HVAC examples
TransactionalNon-promotional information about a service the customer already requested or is receivingNo opt-in required (customer’s interaction with you creates implied consent) — but still must include STOP optionBooking confirmation SMS, appointment reminder, ‘tech is on the way’ notification, invoice sent notification
Marketing / promotionalAny message promoting a service, offer, or designed to generate revenue beyond the existing transactionExpress written opt-in required before sendingSeasonal broadcast (‘spring tune-up special’), review request, past-customer reactivation, referral invite, estimate follow-up beyond the immediate transaction

 PRACTICAL RULE FOR HVAC CONTRACTORS 

If the customer called you, booked a job, or is currently in an active service relationship with you: transactional messages (confirmation, reminders, tech ETA, invoice) do not require a separate marketing opt-in. You are serving their existing request. If you are sending any message that promotes a service, reactivates a dormant customer, or asks them to book something new: you need documented opt-in consent. GoHighLevel handles this by tagging contacts with ‘sms_marketing_optin’ when they opt in via your booking form, website, or verbal consent captured at job close. Always exclude contacts without this tag from marketing campaigns.

Rule 2 — What every marketing SMS must include

Rule 3 — How to get HVAC customers to opt in (four compliant methods)

Important note: This guide covers general compliance principles. TCPA regulations continue to evolve — the FCC’s consent revocation rule scope expansion has been delayed to January 2027. Always consult legal counsel before launching large-scale SMS campaigns or if you have specific compliance questions about your state.

3. How to Build Your HVAC SMS Marketing List — Starting From Your Existing Customer Base

The fastest HVAC SMS list is the one sitting in your existing CRM or job management system. Every customer whose phone number you have collected through a booking, a job, or an estimate is a potential SMS marketing contact — once they have opted in.

List sourceHow to collect opt-inExpected opt-in rateGoHighLevel tag to apply
New bookings via website / GoHighLevel calendarCheckbox on booking form — unchecked by default. ‘Agree to receive service texts from [Business]. Reply STOP to opt out.’60–75% of online bookers will opt in if the form is clean and the value proposition is clearsms_marketing_optin
Inbound callers / phone bookingsCSR verbal ask: ‘We text you system reminders and seasonal offers — OK to add you to our list?’ Log in GoHighLevel.45–60% — lower than online but significant volumesms_marketing_optin
Post-job follow-up conversationTech asks at job close: ‘We send seasonal reminders — mind if we add you to our text list?’ Document in GoHighLevel.50–65% conversion — customer is satisfied and responsive at job closesms_marketing_optin
SMS keyword campaign (on invoices, door hangers)Print ‘Text TUNE to [number] for seasonal reminders and priority booking’ on every invoice and leave-behind material10–20% — slower but grows passively over timesms_marketing_optin via keyword trigger

Start with what you have. If your CRM has 200 past customers with phone numbers and you get verbal opt-ins retroactively (by sending a one-time ‘would you like our seasonal reminders?’ message and logging YES responses), you can build a 100–150 contact marketing list in the first week — enough for the first seasonal broadcast to recover multiple jobs.

4. Campaigns 1–2: Missed-Call Recovery and HVAC Booking Confirmation + Reminder SMS

Campaign 1: Missed-call recovery — the highest-ROI single workflow in HVAC SMS marketing

A homeowner whose AC fails at 8pm calls the first HVAC company they find. If you don’t answer, they call the next one. The missed-call recovery SMS fires within 60 seconds of the missed call — catching the homeowner while they are still at their phone and before they book with a competitor.

Missed-call SMS — fires within 60 seconds:

  Hi — [Business] here. Sorry we missed your call! If you need HVAC service, you can book a time here: [BOOKING LINK] — or reply to this message and we’ll get back to you shortly.  

30-minute follow-up — if no booking and no reply:

  Still need HVAC help? We have availability today and tomorrow. Book online in 30 seconds: [BOOKING LINK] — or call [Phone]. — [Business]  

GoHighLevel build: Automation → Workflows → Trigger: Missed Call → Action: Send SMS (Touch 1) → Wait 30 min → IF no booking AND no reply → Send SMS (Touch 2). Stop on reply. See the full HVAC missed call automation guide.

Campaign 2: Booking confirmation and no-show reminder sequence

Every booked appointment needs a confirmation SMS, a 24-hour reminder, and a no-show recovery. This is transactional — no marketing opt-in required.

Instant confirmation SMS (fires on booking):

  Booking confirmed! [Business]: [Service] on [Date] at [Time]. Address on file: [Address]. Reply here or call [Phone] with any questions.  

24-hour reminder SMS:

  Reminder from [Business]: [Service] is tomorrow at [Time]. Address: [Address]. Reply RESCHEDULE if you need a different time — we’ll find you a slot.  

2-hour reminder SMS:

  [Tech Name] from [Business] will be with you today around [Time]. Reply here if anything has changed.  

No-show recovery — fires 30 min after scheduled time if job status not updated:

  Hi [Name] — we had you booked today at [Time] and our tech is at your address. Did something come up? Reply here to reschedule — we’ll find you another slot today or tomorrow.  

5. Campaigns 3–4: HVAC Seasonal Pre-Booking Broadcasts and Estimate Follow-Up SMS

Campaign 3: Seasonal pre-booking broadcast — the calendar-filling campaign

The seasonal broadcast is the single SMS campaign that most directly fills your calendar for the next 4–6 weeks. Sent to opted-in past customers 6–8 weeks before peak season, it pre-books tune-ups before the rush and before competitors reach them first.

Spring AC broadcast (send early March — 6–8 weeks before summer):

  Hi [Name] — [Business] here. Spring AC season is a few weeks away and our calendar is filling up. Book your AC tune-up now and skip the wait: [BOOKING LINK] — or reply here. Msg freq varies. Reply STOP to opt out.  

Fall furnace broadcast (send late August — 6–8 weeks before heating season):

  Hi [Name] — [Business] here. Heating season is coming up. Get your furnace checked before the first cold snap — we’re booking now: [BOOKING LINK] — or reply here. Msg freq varies. Reply STOP to opt out.  

Slow-season January broadcast (fills dead calendar with pre-season discounts):

  Hi [Name] — [Business] here. We’re offering early-bird pricing on AC tune-ups booked in January before the spring rush. Lock in your spot: [BOOKING LINK]. Reply STOP to opt out.  

Campaign 4: Estimate follow-up SMS — closing unsold quotes before they go cold

The estimate follow-up SMS sequence fires automatically when an estimate is sent and the opportunity has not moved to ‘Won’ within 48 hours. See the full HVAC estimate follow-up best practices guide for the complete 4-touch sequence.

Touch 1 — Day 2 SMS (satisfaction check):

  Hi [Name] — [Business] here. Just checking in on the estimate we sent. Any questions about what’s included or the timeline? Reply here or call [Phone].  

Touch 3 — Day 7 SMS (value add or scheduling nudge):

  Hi [Name] — [Business] checking in on your estimate. No rush at all. If it helps to talk through the options or the financing details, just reply here.  

Touch 4 — Day 14 SMS (clean close):

  Hi [Name] — last follow-up on your estimate. If you’ve gone another direction, no problem at all. If you’re still deciding, we’re here whenever you’re ready. — [Business]  

6. Campaigns 5–6: HVAC Review Request SMS and Past-Customer Reactivation

Campaign 5: Post-job review request — Google ranking in every message

Review requests sent via SMS at 24 hours post-job convert at 25–40% — the highest converting method for review generation. See the full HVAC reputation management guide for the sentiment filter workflow.

Satisfaction check SMS — fires 24 hours after job completion:

  Hi [Name] — [Tech] from [Business] here. Hope everything is working well! How did we do? Reply 👍 if we nailed it or let us know if anything wasn’t right.  

Review request SMS — fires 30 min after positive reply:

  So glad to hear it — thank you! If you have 60 seconds, a quick Google review would really help us: [REVIEW LINK]. We appreciate you! — [Business]  

Campaign 6: Past-customer reactivation — dormant revenue in your own database

Sent twice per year (March and August), this broadcast targets opted-in past customers who have not booked in 120+ days and have no active maintenance agreement. At 8–15% re-engagement, a 100-contact list generates 8–15 booked jobs at near-zero acquisition cost.

Spring reactivation SMS:

  Hi [Name] — [Business] here. It’s been a while! Spring AC season is approaching and we wanted to reach out before the rush. If your system is due for a check, reply here to book or visit [BOOKING LINK]. Reply STOP to opt out.  

Fall reactivation SMS:

  Hi [Name] — [Business] here. Heating season is coming up and we haven’t spoken in a while. If you’d like a furnace check before it gets cold, we’re booking now: [BOOKING LINK]. Reply STOP to opt out.  

7. Campaigns 7–8: HVAC Maintenance Agreement Renewal and Referral Invite SMS

Campaign 7: Maintenance agreement renewal — protecting recurring revenue

30-day renewal reminder SMS:

  Hi [Name] — [Business] here. Your maintenance plan renews in about a month. To keep your priority scheduling and repair discount active, reply RENEW or visit [BOOKING LINK]. Reply STOP to opt out.  

7-day renewal SMS (urgency without pressure):

  Hi [Name] — your [Business] maintenance plan expires in one week. Stay covered for your next seasonal visit — reply YES to renew or call [Phone]. Reply STOP to opt out.  

Expiry day SMS (final nudge):

  Hi [Name] — your [Business] maintenance plan expired today. We’d love to keep you on — reply here to renew at the same rate or ask any questions. Reply STOP to opt out.  

Campaign 8: Referral invite — turning 5-star reviewers into a lead source

Post-review referral invite — fires 2 weeks after 5-star review received:

  Hi [Name] — thank you again for your review! If you ever mention us to a neighbour, reply here and we’ll send you a $25 credit toward your next visit when they book. Just a small thank-you. — [Business]. Reply STOP to opt out.  

8. HVAC SMS Message Writing Rules — What Converts and What Destroys Response Rate

SMS is the most unforgiving marketing channel. A single bad message — too long, too pushy, too generic — generates opt-outs and erodes the trust you built on the job. These are the rules that separate high-converting HVAC SMS campaigns from the ones that get ignored.

RuleBest practiceCommon mistakeImpact of getting it wrong
LengthUnder 160 characters per message — one SMS unit. If a message requires two units to send, cut it.Messages of 300+ characters that split across two SMS units or get truncatedTruncated messages look unprofessional; split messages cost double the SMS fee
OpeningStart with your business name or the customer’s name, not a generic openerStarting with ‘Hey there!’ or ‘Hi!’ with no identification — customer has no idea who is textingCustomers ignore unidentified messages; spam complaints increase
CTAOne clear call to action per message — ‘Reply here,’ ‘Book here: [LINK],’ or ‘Call [Phone].’ Never two CTAs.Two CTAs: ‘Reply here or call us or book online or visit our website’Decision paralysis — customers do nothing when given too many options
Send time8am–11am or 5pm–8pm local time on Tuesday–ThursdaySending at 6am Saturday or 10pm on weekdays — legal but destroys goodwillOpt-outs spike; customer feels harassed regardless of message quality
PersonalisationUse first name. Reference the specific service type if possible: ‘your AC,’ ‘the furnace we serviced in October’Generic mass-blast tone: ‘Hi customer, we have a special offer for HVAC services’Response rate drops 30–50% vs personalised messages; opt-out rate increases
ToneConversational, warm, human. Sound like a text from a person at your company, not a marketing departmentCorporate language: ‘We are pleased to inform you of our seasonal promotional offering’Customers sense automation immediately; engagement drops
FrequencyMaximum 2 marketing SMS per month per contact. Transactional messages (confirmations, reminders) have no frequency limit.Weekly promotional blasts — every HVAC sale, every promotion, every new serviceOpt-out rate climbs above 3.5%; contacts leave the list faster than new ones join

9. GoHighLevel SMS Setup for HVAC — Campaigns, Workflows, and Smart List Segmentation

GoHighLevel handles HVAC SMS marketing through two tools: Workflows (for automated, trigger-based sequences) and Campaigns (for one-time or scheduled broadcasts to a Smart List). Each campaign type maps to one of these tools:

Campaign typeGoHighLevel toolWhy
Missed-call recoveryWorkflow — Trigger: Missed CallNeeds to fire immediately and automatically on every missed call
Booking confirmation + remindersWorkflow — Trigger: Appointment BookedFires on every booking; includes conditional logic for no-show recovery
Estimate follow-up sequenceWorkflow — Trigger: Opportunity Stage → Estimate SentMulti-touch timed sequence; stop on reply or stage change
Post-job review requestWorkflow — Trigger: Opportunity Stage → Job Completed24-hour delay + sentiment filter
Maintenance agreement renewalWorkflow — Trigger: Custom Field ‘agreement-expiry-date’ → 30 days outDate-based trigger; fires before expiry
Referral inviteWorkflow — Trigger: Tag ‘received-5-star-review’ appliedFires 2 weeks after review tag; one message
Seasonal pre-booking broadcastCampaign — sent manually to Smart List twice per yearNot automated — requires human judgment on timing and capacity
Past-customer reactivationCampaign — sent manually to Smart List twice per yearSame as above — seasonal judgment required for send timing

How to launch an HVAC SMS campaign (broadcast) in GoHighLevel — step by step

Marketing → Campaigns → New Campaign → Type: SMS

Select target audience: Smart List → filter: tag ‘sms_marketing_optin’ + tag ‘past-customer’ + no tag ‘active-agreement’ + last activity > 120 days → Name it ‘Spring Reactivation [Year]’

Compose message: paste your seasonal broadcast template. Add merge field: {{contact.first_name}}. Include STOP instruction.

Schedule: Tuesday 9:00am local time. Avoid Mondays and Fridays.

Enable Drip Mode for large lists (200+ contacts) — spreads delivery over 30–60 minutes to avoid carrier flagging

Review the preview. Confirm character count under 160. Click Launch.

Monitor Conversations inbox for replies — each reply needs a human response within 30 minutes for best conversion

 SMART LIST SEGMENTATION — THE MOST IMPORTANT SETUP STEP 

Sending the wrong campaign to the wrong segment is the fastest way to generate opt-outs and damage your SMS list. Before launching any campaign, confirm your Smart List filter excludes: contacts tagged ‘DND’ (Do Not Disturb), contacts tagged ‘sms_opted_out’, and contacts without the ‘sms_marketing_optin’ tag. GoHighLevel’s DND system automatically suppresses opted-out contacts, but always visually verify the segment count before sending. A seasonal broadcast to 150 contacts should only include opted-in, active contacts — not every phone number in your CRM.

→ Try GoHighLevel Free for 14 Days — Build Your HVAC SMS Marketing System

Workflows for all 6 automated campaigns + Campaign tool for seasonal broadcasts — on the Starter plan at $97/mo.

10. QuoteIQ SMS Tools — What’s Native and What Requires GoHighLevel for Full Calendar Coverage

QuoteIQ Pro ($149.99/mo) sends automated SMS messages for specific job lifecycle events natively. These are all transactional — no marketing opt-in required.

SMS use caseQuoteIQ ProGoHighLevel StarterNotes
Booking confirmation SMS✅ Native — fires when job is scheduled✅ Workflow trigger: Appointment BookedBoth handle this; GoHighLevel adds conditional logic
Appointment reminder SMS✅ Configurable timing on Pro plan✅ 24-hour + 2-hour reminders in workflowBoth capable
Post-job review request SMS✅ Toggle on in Settings → Automated Campaigns✅ Workflow with sentiment filter + multi-touchGoHighLevel adds sentiment filter and follow-up touch
Estimate follow-up SMS sequence❌ Not native✅ Full 4-touch sequence workflowGoHighLevel only
Seasonal broadcast to opted-in list❌ Mass SMS only — limited Smart List filtering✅ Campaign tool with Smart List segmentationGoHighLevel significantly stronger
Missed-call recovery SMS❌ Not available✅ Missed Call Text-Back workflowGoHighLevel only
Maintenance agreement renewal SMS❌ Not native✅ Date-triggered workflowGoHighLevel only
Referral invite SMS❌ Not native✅ Post-review tag trigger workflowGoHighLevel only

QuoteIQ covers the job execution SMS layer (confirmation, reminder, review request). GoHighLevel covers the calendar-filling SMS layer (seasonal broadcasts, missed-call recovery, estimate follow-up, reactivation, renewals, referrals). The tools are complementary — shops on QuoteIQ Pro benefit from adding GoHighLevel for the marketing campaigns.

→ Try QuoteIQ Free for 14 Days — Job Confirmation + Review Request SMS on Pro

11. The HVAC SMS Marketing Seasonal Calendar — 12 Months of Campaigns Mapped Out

The year-round calendar below maps each campaign type to the optimal send timing. The result: a full schedule of SMS marketing that fills peak season, prevents slow months, and keeps your name in front of past customers at every natural decision point.

MonthCampaign(s) to sendTarget segmentGoal
JanuarySlow-season early-bird AC broadcastOpted-in past customers, no active agreementPre-book spring tune-ups at discounted early-bird rate — fills dead January calendar
FebruaryEquipment age alert (10+ year systems)Contacts with system age custom field > 10 yearsStart replacement consultation pipeline before spring rush
March (early)Spring AC pre-booking broadcastOpted-in past customers + past-customer reactivationLock in spring calendar before peak demand — highest priority broadcast of the year
March (late)Estimate follow-ups on any open spring estimatesContacts with open estimates tagged ‘estimate-sent’Close pending estimates before the peak season rush creates competing priorities
April–MayAutomated only (no new broadcasts)All segmentsConfirmation + reminders on booked jobs; review requests on completed jobs; referral invites
JuneMid-season reactivation — for contacts who didn’t book in MarchOpted-in past customers who haven’t booked in 2026Top-up the summer calendar; catch late decision-makers
July–August (early)Automated only + maintenance plan renewal remindersAgreements expiring in September–OctoberKeep summer jobs flowing; protect fall maintenance base
August (late)Fall furnace pre-booking broadcastOpted-in past customers + past-customer reactivationFill fall heating season calendar 6–8 weeks before demand peaks — second most important broadcast
SeptemberEstimate follow-ups on fall replacement estimatesOpen replacement estimates from August visitsClose high-value replacement estimates before customers defer to spring
October–NovemberAutomated onlyAll segmentsPeak season execution — confirmations, reminders, reviews, referrals
DecemberHoliday check-in + January pre-booking teaseOpted-in past customersLow-key seasonal message; plants the seed for January pre-season booking

The total number of manually initiated campaigns per year: 6 broadcasts (January, February, March early, June, August late, December). Everything else is automated. Setup time per manual broadcast: 10–15 minutes in GoHighLevel.

12. Frequently Asked Questions — HVAC Text Message Marketing

Is HVAC text message marketing legal?

Yes — with documented opt-in consent. The TCPA (Telephone Consumer Protection Act) requires that customers give express written consent before receiving marketing SMS messages. Transactional messages — booking confirmations, appointment reminders, tech ETA notifications — do not require marketing opt-in as they relate to a service the customer already requested.

For marketing SMS (seasonal broadcasts, reactivation campaigns, promotional offers), you need a documented opt-in: a checked booking form checkbox, a verbal consent logged in your CRM, or a keyword opt-in response. GoHighLevel tracks this with the ‘sms_marketing_optin’ tag and automatically suppresses opted-out contacts from campaigns. Violations carry fines of $500–$1,500 per message — always consult legal counsel for compliance advice specific to your business.

How do I get HVAC customers to opt in to SMS marketing?

The four most effective opt-in methods for HVAC contractors: (1) A checkbox on your GoHighLevel booking form — ‘Agree to receive service reminders and seasonal offers via text.’ Must be unchecked by default. (2) A verbal ask from the tech at job close — ‘We send seasonal reminders by text — can we add you?’ Log the opt-in in GoHighLevel. (3) A keyword opt-in printed on invoices — ‘Text TUNE to [number] for AC and furnace reminders.’ (4) A website pop-up or footer form with SMS sign-up for seasonal tips.

The booking form checkbox is the highest-volume method — it captures 60–75% of all new online bookers without any additional effort from your team.

What should I include in an HVAC seasonal SMS campaign?

A seasonal HVAC SMS broadcast should be under 160 characters, personalised with the customer’s first name, contain one clear call to action (booking link or reply prompt), and include your business name and ‘Reply STOP to opt out.’ The message should reference the specific season or service need: ‘Spring AC season is 6 weeks away’ or ‘Heating season is approaching’ — not a generic ‘we’re running a special.’

Send timing: Tuesday–Thursday, 8–11am local time. Avoid weekends and Monday mornings. Seasonal broadcasts sent 6–8 weeks before peak season generate significantly higher booking rates than those sent 1–2 weeks before — because customers are in planning mode rather than emergency mode.

How much does HVAC SMS marketing cost?

In GoHighLevel, SMS costs approximately $0.008 per message (outbound) and $0.0075 per message (inbound reply). A 100-contact seasonal broadcast costs under $1. A full month of automated SMS — confirmations, reminders, review requests, estimate follow-ups — for a shop doing 20 jobs per week costs approximately $15–$40/month in SMS usage, depending on job volume and follow-up sequence length.

The GoHighLevel Starter plan at $97/mo includes all automation tools. Total HVAC SMS marketing system cost: $110–$140/month including usage. At 8–15 recovered bookings per seasonal broadcast at $400 average job value, the first broadcast of the year typically covers the entire annual platform cost.

How often should HVAC companies send text messages to customers?

Transactional messages (booking confirmations, reminders, tech ETA) have no frequency limit — send as many as are relevant to the customer’s active job. Marketing messages should be capped at 2 per month per contact. Research shows 49% of SMS subscribers prefer receiving promotional messages every other week, and opt-out rates climb sharply with weekly or more frequent marketing texts.

The HVAC seasonal calendar in this guide sends 6 manual marketing broadcasts per year — roughly one every 6–8 weeks — well within the acceptable frequency range. Automated campaigns (review requests, referral invites, renewal reminders) fire based on customer behaviour and each contact receives them once, not repeatedly.

Launch Your First HVAC SMS Campaign This Week — Start With the Highest-Impact Workflow

You do not need all eight campaigns running before HVAC text message marketing starts filling your calendar. Start with the one that produces the first result fastest:

This week — missed-call recovery (15 min): GoHighLevel → New Workflow → Trigger: Missed Call → SMS with booking link. From that moment, every missed call gets an immediate text response — capturing the leads that would have booked with a competitor.

This week — confirmation + reminder sequence (20 min): New Workflow → Trigger: Appointment Booked → Instant confirmation SMS → 24-hour reminder → No-show recovery. Reduces no-shows from the first booking.

This month — seasonal broadcast (15 min): Build your Smart List of opted-in past customers. Send the seasonal broadcast template from Section 5. At 8–15% re-engagement, a 150-contact list generates 12–22 booked jobs in the next 48–72 hours.

Each campaign added compounds the others. Missed calls become booked jobs. Booked jobs become reviews. Reviews become referrals. Seasonal broadcasts re-engage customers whose names enter the maintenance agreement renewal sequence six months later.

The calendar fills year-round because the system runs year-round — not because you remembered to send a text.

For the full HVAC automation stack, see the HVAC booking automation guide, the HVAC business systems pillar guide, and the GoHighLevel for HVAC complete setup guide.

→ Try GoHighLevel Free for 14 Days — Launch Your HVAC SMS Marketing System

→ Try QuoteIQ Free for 14 Days — Job Confirmation + Review Request SMS on Pro

About the Author

Ihor Hnatewicz is the founder of Hnatewicz Media, an independent software review and AI automation resource for trades businesses. He specialises in helping HVAC, plumbing, and electrical contractors evaluate CRM, field service, and marketing automation software. All reviews and comparisons on this site are based on independent research, real pricing data, and hands-on product testing.

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