How to sell commercial HVAC service agreements building owners renew

A residential maintenance plan sells a tune-up schedule and a priority spot on the calendar. Commercial agreements are about keeping a store open, a tenant comfortable and a server room cool, with someone else's budget and someone else's boss watching. The buyer signs because an agreement turns surprise breakdowns into a planned expense and puts a contractor on the hook to answer.

This guide covers what goes into a commercial agreement, who signs one, the refrigerant rules your customers live under, where new accounts come from, how to price and contract the work, what public buyers add, and how to renew. Nothing here is legal advice, and licensing and public purchasing rules differ between states and cities, so confirm the ones in your area.

What does a commercial HVAC service agreement cover?

Commercial agreements can be organized into a few levels. Name them clearly so the buyer compares like with like.

Whatever the level, the backbone is the equipment schedule: every rooftop unit, split system, boiler, make-up air unit and exhaust fan you are responsible for, with make, model, serial number, location, refrigerant type, full charge, filter sizes and belt sizes. Record the charge from the nameplate, because the EPA leak rules covered below turn on charge size. If a unit is not on the schedule, it is not in the agreement.

Who signs commercial HVAC agreements?

• Facility managers for chains. Restaurant groups, retail chains and medical practices with several locations want one standard of service and one invoice format across sites.
• Property managers. Office, medical office, retail center and apartment managers answer to owners and tenants. Lead with your response times and how you will keep tenants informed while a unit is down.
• Owners of single buildings. A dentist who owns the building, a church, a small manufacturer. Often the easiest first accounts, because the person who signs is the person who sweats when the unit dies.
• Schools, cities and counties. They buy through formal bids and purchasing rules.
• General contractors. New buildings get handed to an owner who now needs a service contractor. Ask the GCs you know who takes over maintenance after their jobs close.

For the day-to-day side of serving managers, read how to work with property managers.

Refrigerant rules that make your records valuable

Commercial customers carry federal refrigerant duties, and a contractor who understands them sells a better agreement. A short summary, which is not a substitute for the regulations:

• Technician certification. Under the Section 608 rules, anyone who could reasonably be expected to open the refrigerant circuit while maintaining, servicing, repairing or disposing of an appliance must pass an EPA-approved certification exam. Since January 1, 2018, that covers appliances with ozone-depleting refrigerants and those with non-exempt substitutes, a group that includes HFCs (40 CFR 82.161; exempt substitutes are listed in 40 CFR 82.154). The same section sorts certifications by equipment: Type II for medium-, high- and very high-pressure appliances, Type III for low-pressure appliances, and Universal for all of them (EPA Section 608 certification). Commercial buyers may ask for copies of your technicians' cards, so keep them on file with the type shown.
• Leak repair for ozone-depleting refrigerants. Owners or operators of appliances with a full charge of 50 pounds or more of ozone-depleting refrigerant must act when the leak rate over 12 months exceeds the trigger rate: 10% for comfort cooling and 20% for commercial refrigeration. In general they must repair within 30 days or develop a plan within 30 days to retrofit or retire the appliance (EPA leak repair requirements).
• Leak repair for HFC systems. According to an EPA fact sheet dated January 2026, beginning January 1, 2026 owners or operators of appliances with a charge of 15 pounds or more of refrigerant containing an HFC (or certain substitutes with a global warming potential above 53) must calculate the leak rate each time refrigerant is added, repair leaks above the same thresholds, and keep records for three years. Appliances in the residential and light commercial air conditioning and heat pump subsector are not covered (EPA fact sheet).

The practical point: when your technician adds refrigerant to a covered system, the owner needs a leak-rate calculation and a record. An agreement that includes those calculations, keeps the records and flags systems near the threshold solves a compliance problem for the facility manager. EPA updates these rules, so check its pages before you write compliance language into a contract, and never promise that your service makes a customer compliant.

How do you find commercial HVAC accounts through channels you own?

The easiest commercial agreement to sell is to a business that just paid you for an emergency repair. The building is still warm, the manager remembers who showed up, and you have seen the equipment. Make it a habit: every commercial repair ends with a short written condition note on the other units and an offer to survey the site.

Beyond repair customers:

• A commercial maintenance page on your website that lists the equipment you service, your response commitments, the area you cover and a sample PM report. See our page for HVAC companies for the other pages a mechanical contractor's site should have; our website service builds them.
• Your Google Business Profile with photos from commercial jobs: rooftop units with the panels off, a cleaned condenser coil, a boiler room, a make-up air unit over a kitchen line.
• Neighbors of current accounts. Every strip center you service has other tenants with rooftop units on the same roof.
• Building owner and manager groups. BOMA International says it serves property owners, managers, professionals and service providers across commercial building types, and it lists local BOMA associations by state (BOMA). IREM has local chapters for property managers.
• A phone that gets answered in July. A no-cooling call from a restaurant at 2 p.m. on a Saturday is a sales call. An AI receptionist can take the details and ring your on-call technician.

How should you price a commercial HVAC agreement?

Price from the survey, unit by unit. For each piece of equipment, record:

1. Type, size, refrigerant and charge, age and condition.
2. Access: roof hatch, fixed ladder, extension ladder, lift, escort required, hours allowed.
3. Tasks per visit and minutes per task for a competent technician.
4. Materials per visit: filters by size and count, belts, coil cleaner, condensate treatment.
5. Visits per year for that unit.

Then add travel, reporting time, a margin and, for broader coverage, a repair reserve based on the age and condition you found. Old equipment in poor shape can be excluded from coverage or covered only after repairs, and the contract should say which. Our maintenance plan calculator helps with the per-visit math, and the HVAC pricing guide covers labor rates and parts margins.

When a property manager sends a request for proposal, price exactly to the specification, ask questions in writing before the deadline, and show alternates on a separate line. If the spec's equipment list does not match what you saw on the roof, say so in writing. That note can earn more trust than the price. Our commercial bidding guide covers bid packages in detail.

Contract terms that protect both sides

• Equipment schedule attached, with a process to add or remove units and adjust the price.
• Exclusions spelled out: ductwork, controls, compressors or heat exchangers if not covered, damage from power events, misuse or work by others, and pre-existing conditions found on the first visit.
• Response times by priority, with after-hours and holiday rates.
• Refrigerant billing: whether it is included, capped, or billed by the pound.
• Access and safety: who provides roof access, lifts and escorts.
• Price changes at renewal and for parts surcharges.
• Term, automatic renewal and cancellation notice.
• Billing: per site or consolidated, purchase order numbers, and payment terms. Net 30 means you finance a month of labor, so price for it.

Before the first visit, the account will usually want your insurance certificate, often naming them as additional insured, plus a W-9. The W-9 gives them your taxpayer identification number for IRS information returns (IRS). See our guides to service contracts and general liability insurance.

Selling HVAC service to public and federal buyers

State and local agencies set their own purchasing rules, thresholds and insurance requirements, and they differ from place to place. Register on the purchasing portals for the schools, cities and counties near you, and read each solicitation's requirements before you price it.

For federal facilities:

• SAM.gov first. SBA treats a SAM registration as a basic requirement for federal contracting and describes SAM as the database agencies search when they look for contractors (SBA). Registration assigns your Unique Entity ID, must be renewed every 365 days, and costs nothing according to GSA's quick start guide.
• Your NAICS code. The Census Bureau's definition of NAICS 238220 covers installing and servicing plumbing, heating and air-conditioning equipment, including maintenance and repairs. For that code, SBA counts a firm as small up to $19.0 million of average yearly receipts (13 CFR 121.201, checked on eCFR in October 2026).
• Labor standards. Federal service contracts over $2,500 fall under the Service Contract Act's prevailing wage rules, while Davis-Bacon reaches federally funded or federally assisted construction, alteration and repair work on public buildings once the contract passes $2,000 (DOL). Read the solicitation and its wage determination to see which applies to the work.
• Payment timing. If the contract names no payment date, the federal Prompt Payment regulation generally makes payment due 30 days after the agency receives a proper invoice, and the rule spells out when an invoice counts as received (5 CFR 1315.4).

Firms that qualify for SBA's 8(a), HUBZone, WOSB or SDVOSB programs can compete for set-aside contracts. Our guide to government contracts walks through registration and finding opportunities.

Proving the work and winning the renewal

The agreement renews on what the owner can see. Each visit should produce a report with the unit, the tasks done, readings (supply and return temperatures, pressures, amp draws where you take them), filter and belt changes, photos of coils before and after, and the technician's time on site. Deficiencies go on a list with a priority and a quote attached.

Once a year, hand the owner an equipment report: every unit ranked by condition, repairs recommended this year, and units likely to need replacement in the next few budget cycles. A facility manager can build a capital budget from a document like that, and the contractor who wrote it is well placed when the replacement work is approved.

A custom CRM built around your agreements can hold the equipment schedule per site, pull the right checklist for each unit, timestamp the visit, attach photos, calculate leak rates when refrigerant is added, and send the report before the technician climbs down. A free system quote will show where commercial calls and requests are slipping through today.

Frequently asked questions