An HVAC service agreement is the contract behind a maintenance plan: the customer pays a set price, and you inspect and tune up their equipment on a schedule. A usable one names the covered equipment, lists what each visit includes, sets the visit frequency, states the price and how it can change at renewal, spells out the member benefits and the exclusions, and says how either side can cancel. For homes, two visits a year, one before the cooling season and one before the heating season, is the common default. Auto-renewal and cancellation rules for consumer contracts differ from state to state, so those clauses are the ones to check before you print. Below is a copy-ready template with a tune-up checklist, and a short section for anyone running a heating business in Germany.
This isn't legal advice. The regulatory quotes come from the EPA and the eCFR, retrieved in November 2026. For the bigger picture of what an AI employee can draft in a plumbing or HVAC office, see AI for Plumbers: Quotes, Inbox and Receipts.
What goes into an HVAC service agreement
The top results for this search are templates from field service software vendors. They agree on the core sections. SmartService, one of them, lists scope, frequency, renewals and exclusions as the parts every agreement needs, and the rest follows from there:
- Parties and covered equipment. Customer, service address, and an equipment schedule: make, model, serial number, age, type (furnace, heat pump, AC, boiler). Without it, every breakdown starts an argument about what's covered.
- Scope of work. What a visit includes, as a checklist attached to the agreement, and what it doesn't.
- Visit frequency and scheduling. How many visits, in which months, and who books them.
- Term and renewal. Start date, first term, what happens at the end.
- Price and payment. Annual or monthly price, what's included, due dates, and how the price can change at renewal.
- Member benefits. Priority scheduling, repair discounts, waived diagnostic fees, written as specific, checkable promises.
- Exclusions and limitations. Parts, refrigerant beyond an allowance, code upgrades, damage from outside causes.
- Cancellation, warranty, liability and signatures.
HVAC service agreement template
Copy this into your own file next to your quote template, replace every bracket and strike what doesn't apply. It's written for a residential customer with one heating and one cooling system; for light commercial, add equipment rows and visits. What goes on paper at the visit itself is in Service Report Template: From Job to Invoice.
[Your company, address, license no. if required, contact]
HVAC SERVICE AGREEMENT No. [SA-001]
Customer: [Name]
Service address: [Address]
Billing contact: [Name, phone, email]
1. COVERED EQUIPMENT
Unit Type Make / model Serial no. Installed
1 [Furnace] [ ] [ ] [year]
2 [AC / HP] [ ] [ ] [year]
Condition at start: per inspection on [date] (Schedule B).
2. SCOPE OF WORK
a) Company performs the maintenance listed in Schedule A,
following the equipment manufacturer's instructions.
b) After each visit, Customer receives a written service
report.
c) Not included: repairs and replacement parts not listed
in Schedule A; refrigerant beyond [amount] per visit;
duct cleaning; code-required upgrades; damage from
power surges, flooding, freezing or work by others;
equipment not listed in section 1. Such work is done
only on separate approval, at prices quoted in advance.
3. VISITS AND SCHEDULING
a) [Two] visits per agreement year: cooling tune-up in
[March to May], heating tune-up in [September to November].
b) Company contacts Customer to schedule each visit at
least [14] days in advance. Customer provides access.
c) A missed visit that Customer cancels with less than
[24] hours' notice [is rescheduled once / counts as used].
4. PRICE AND PAYMENT
a) Price: $[ ] per year, [paid in advance / $[ ] per month
by automatic payment], plus applicable sales tax.
b) Price is fixed for the first agreement year. Company
will send any new price in writing at least [30] days
before renewal.
5. MEMBER BENEFITS
a) Priority scheduling for repair calls: [within 24 hours
on business days].
b) [15]% off repair labor on covered equipment.
c) [Diagnostic fee waived during regular business hours.]
6. TERM, RENEWAL AND CANCELLATION
a) This agreement starts on [date] and runs for one year.
b) [Renewal: It renews for another year unless either
party cancels in writing at least [30] days before the
renewal date. Company sends a renewal reminder with the
renewal price [30 to 60] days before renewal.]
c) Either party may cancel at any time with [30] days'
written notice. [Refund of unused prepaid portion,
less the regular price of visits already performed.]
7. WARRANTY AND LIABILITY
a) Workmanship on maintenance work is warranted for
[90] days.
b) [Liability clause: draft with your attorney under your
state's law. Do not copy one from another state.]
8. TECHNICIANS
Any work on the refrigerant circuit is performed by
technicians certified under EPA Section 608.
Customer: ____________________ Date: __________
Company: ____________________ Date: __________
Schedules: A Maintenance checklist, B Initial inspection
SCHEDULE A: MAINTENANCE CHECKLIST
(example, adjust to the manufacturer's instructions)
Cooling visit
[ ] Replace or clean air filter
[ ] Clean condenser coil, clear debris around outdoor unit
[ ] Check refrigerant pressures and temperature split
[ ] Check capacitor, contactor and electrical connections
[ ] Clear condensate drain line and check pan
[ ] Test thermostat and system cycle
Heating visit
[ ] Replace or clean air filter
[ ] Inspect burners, flame sensor and ignition
[ ] Inspect heat exchanger and venting
[ ] Test safety controls and limit switches
[ ] Check blower, belts, motor amperage
[ ] Carbon monoxide check at appliance and vent
[ ] Test thermostat and system cycle
Two notes. The renewal clause in 6 b) is in brackets on purpose: whether and how you can auto-renew depends on your state. And clause 7 b) is a reminder, not a clause.
Visit frequency and scope
SmartService calls two visits per year "the residential default (cooling season and heating season)" and quarterly visits common for light commercial. It also recommends that the company schedules each visit, because plans that wait for the customer to call tend to go unused and then don't renew. The checklist itself comes from the equipment manufacturer's maintenance instructions, not from a generic list; Schedule A is a starting point.
One part of the scope is regulated at the federal level. The EPA requires that technicians who "maintain, service, repair, or dispose of equipment that could release ozone depleting refrigerants into the atmosphere must be certified." The regulation goes further: anyone "who could be reasonably expected to violate the integrity of the refrigerant circuit" while servicing appliances with a class I or class II refrigerant "or a non-exempt substitute refrigerant" must pass an approved certification exam (40 CFR 82.161). Clause 8 of the template puts that in writing.
Price, renewal and cancellation
Most residential plans are sold as a yearly price or a monthly payment. Write the price for the first year into the agreement and say how a new price reaches the customer: in writing, before the renewal date. SmartService warns that plans without a way to raise prices at renewal "end up underwater by year three." The simplest version is the one in the template: a new price, announced in advance, that the customer can accept by renewing or decline by cancelling.
Renewal is where state law comes in. SmartService itself notes that "auto-renewal language is regulated differently from state to state" and recommends an attorney review before you print. Two habits keep you on the safe side wherever you work: send a renewal reminder with the price before the agreement renews, and make cancelling as easy as signing up. A customer who renews because they got a reminder is worth more than one who renews because they forgot.
Follow up on agreements that are about to lapse like you would on an open quote; how that sounds is in How to Follow Up on a Quote by Email.
Exclusions and liability
Exclusions prevent the worst arguments. The common ones: repair parts on basic plans, refrigerant beyond a stated allowance, code-required upgrades, damage from power surges or weather, and systems modified by others. If you enroll older equipment, state any age limits here instead of arguing about them at a breakdown.
Liability limits are the one clause you shouldn't copy from a template found online. What a limitation of liability can and can't exclude depends on your state, so the template leaves it as a placeholder.
If you run a heating business in Germany
A German "Wartungsvertrag" for heating systems covers the same ground, but the rules are tighter for private customers. A standard contract with a consumer may not bind them for more than two years at first, may only renew tacitly for an indefinite period with a cancellation right at one month's notice, and may not require more than one month's notice before the end of the first term (Section 309 no. 9 BGB). If the customer signs at home, for example in the boiler room after a visit, they have a 14-day right of withdrawal (Sections 312b, 312g and 355 BGB). And the building energy law (now GModG) obliges the operator to have heating components maintained regularly by a qualified person, without setting an interval (Section 60 GModG). The German version of this article has a full German template; use the language switch at the top of the page.
What an AI employee drafts for a service agreement
For proposals I have Anton. He runs in my own business: he turns an initial conversation into an offer PDF and, once a client says yes, creates the contact, offer and invoice as drafts in my accounting tool. His page explicitly lists maintenance contracts among what his workflow also covers. My offers are coaching offers. For an HVAC company, you write the service agreement workflow down for him once: equipment, scope and visit plan in, a draft agreement from your building blocks out, for example from the template above. Three of his rules fit exactly:
- Without a price source, he sets no price. The plan price comes from your price list. If it's missing, he asks.
- Two prices, two sources. If he finds two prices for the same plan, say last year's and this year's, he lists both with their source and asks instead of averaging.
- He recalculates and never sends on his own. He checks the totals himself, inspects the PDF page by page, and nothing leaves the system without your click.
What stays with you: the clauses you use, the technical scope, the price and the signature. How you put that into practice in your business is something we can look at together. What AI does when drafting quotes, and where it stops, is in Writing Quotes and Invoices with AI; which roles carry over to a trades business is in AI Agents for Tradespeople: Roles, Not Tools. Before customer data runs through an AI service, read AI and Privacy: What the AI Gets to See. How field service software tracks service agreements is in Software for Plumbers: Plans and Prices.
Frequently asked questions
What should an HVAC service agreement include?
Covered equipment, a maintenance checklist, visit frequency, price and payment terms, member benefits, exclusions, renewal and cancellation terms, warranty and liability, and signatures with dates.
How many visits does an HVAC maintenance agreement cover?
For homes, two visits a year is the common default: one cooling tune-up before summer and one heating tune-up before winter. Light commercial plans often run quarterly.
Can an HVAC service agreement renew automatically?
Often yes, but auto-renewal rules for consumer contracts differ by state. Send a renewal reminder with the price before renewal and have the clause reviewed under your state's law.
Does this template work for a plumbing service agreement?
The structure does: covered equipment, checklist, visits, price, exclusions, cancellation. Replace Schedule A with your plumbing checklist, for example water heater flush, valve and fixture checks, and drain inspection.
How to keep going
Take your current maintenance plan and lay it next to the template: is there an equipment schedule, a checklist, a renewal reminder and a clear way to cancel? If you want to see which office work in your business an AI employee can prepare, book a strategy session: in 20 minutes we look at the one workflow in your business that depends on you the most. The Bottleneck Check shows the same in about five minutes on your own. More industries are on AI by Industry.
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