Pricing labor warranties and manufacturer warranty work

Two different kinds of warranty work

Home service companies deal with warranties in two ways, and mixing them up causes most of the confusion in pricing. The first is your own labor warranty: your promise that if your workmanship fails within a set period, you come back and fix it at no charge. You pay for every one of those visits. The second is manufacturer warranty work: a part or piece of equipment fails under the maker’s warranty, and the manufacturer covers the part and sometimes pays you a set amount for the labor.

Both affect margin. Your labor warranty is a cost built into every job you sell. Manufacturer warranty work is revenue, but usually at a lower rate than your retail work. Price each one deliberately.

What your labor warranty really costs

1. 01

   Count callbacks

   Pull a year of warranty callbacks by job type: how many jobs, how many came back under your labor warranty.

2. 02

   Cost each callback

   Tech hours plus drive time at your loaded labor rate, plus any parts you supplied free, plus office time to schedule it.

3. 03

   Calculate the reserve per job

   Callback rate times average callback cost gives the expected warranty cost per job of that type.

4. 04

   Build it into the price

   Add the reserve to the flat rate or the install price, the same way you add overhead.

5. 05

   Track it monthly

   If callbacks rise, the problem is usually training or a specific part, not the warranty length.

Loaded labor is the biggest part of that cost. HVAC mechanics and installers earned a median $29.33 an hour in May 2025^[3], and benefits made up 30.0% of private employer compensation costs in June 2026^[4]. At the business level, plumbing, heating and air-conditioning contractors paid an average of $73,693 per employee in annual payroll in 2023^[2].

Example: a fictional company installs 200 water heaters a year and gets 8 labor warranty callbacks, a 4% callback rate. Each callback costs about $180 in loaded tech time, drive and office time. The expected warranty cost is about $7.20 per install, which the company rounds up into its install price, and it now knows what a longer warranty would cost before it offers one.

Setting labor warranty terms

Write the warranty once per job type, in plain language, and attach it to every estimate and invoice. A warranty the customer cannot find is not much of a sales tool.

Federal warranty rules to know

The Magnuson-Moss Warranty Act and the FTC’s rules apply to written warranties on consumer products. According to the FTC’s Businessperson’s Guide to Federal Warranty Law, written warranties on consumer products costing more than $15 must state specified coverage information in a single, clear and easy-to-read document, and must be available for buyers to review before purchase^[1]. Warranties on products costing more than $10 must be labelled “full” or “limited”^[1]. The guide also says warrantors generally cannot require buyers to use a particular brand of parts or service to keep coverage, unless those items are provided free or the FTC grants a waiver^[1].

How these rules apply to a service warranty on labor alone, rather than a product, can depend on the details of what you sell. If you sell equipment with your own written warranty, or extended warranties, have your terms reviewed.

Equipment registration

Many manufacturers require or reward product registration within a set period after installation, for example by extending the parts warranty. Missing a registration deadline can cost the customer coverage and cost you goodwill when the part fails. Make registration part of the install close-out, not an office task for later.

• Register at the install, from the tech’s tablet, with the customer’s permission.
• Record model and serial numbers in the job file and on the invoice.
• Give the customer the confirmation and the warranty terms.
• Note the warranty expiration date so you can contact the customer before it ends.

Manufacturer warranty work: does it pay?

When a covered part fails, manufacturers or their distributors usually reimburse the part and sometimes pay a set labor amount based on their own schedule, which may be well below your retail rates. Before accepting warranty work, calculate the gap.

1. Look up the manufacturer’s labor allowance for the common repairs you do under warranty.
2. Compare it with what the same repair costs you in loaded labor, drive and admin time.
3. Add the unpaid time: claim paperwork, parts returns and waiting for authorization.
4. Decide whether to accept warranty work for all customers, only your own installs, or none.

Many companies take warranty work on equipment they installed, because it keeps the customer, and charge their normal rates for things the manufacturer does not cover: the diagnostic visit, refrigerant, after-hours service or labor beyond the allowance. Disclose those charges on the booking call and in writing before the visit. Customers who think “warranty” means “free” will be upset at any bill they did not expect.

Selling extended labor coverage

Some companies sell extended labor coverage, often bundled into a maintenance plan. Price it from your callback data for that equipment type and age, plus a margin, and remember that the risk rises as the equipment ages. Keep the coverage tied to maintenance: a system that is serviced every year fails less and gives you a chance to spot problems early. If you sell standalone extended service contracts, check your state’s rules first. For plan design, see how to set up a maintenance agreement program.

Quality installation lowers warranty cost

The cheapest warranty claim is the one that never happens. ENERGY STAR notes that improper installation can reduce HVAC system efficiency by up to 30%^[5], and poor installs also generate callbacks. Spending more time on commissioning, checklists and photos at install usually costs less than the callbacks it prevents. Track callbacks by technician and job type and use them in training, not just in pricing.

Handling a warranty callback

1. 01

   Book it fast

   Warranty callbacks go to the front of the schedule. A customer waiting days for you to fix your own work becomes a bad review.

2. 02

   Send the original tech when possible

   They learn from it, and the customer sees accountability.

3. 03

   Find the cause

   Workmanship, a defective part or something outside the warranty such as damage or lack of maintenance.

4. 04

   Explain coverage before any charge

   If something is not covered, say why with reference to the written terms and give the price before doing the work.

5. 05

   Record it

   Cause, time spent and parts used, so the callback data that prices your warranty stays accurate.

Talking about warranties when you sell

Warranty terms are a selling point only if customers understand them. Give techs and comfort advisors one sentence per job type, such as “Our labor on this repair is guaranteed for one year; if anything we did fails, we come back at no charge.” Avoid vague promises like “we stand behind our work” that set no limits, and never promise coverage that is not in writing. If competitors advertise longer terms, explain what yours covers and how fast you respond rather than matching a number you cannot afford.

Example: rewriting a warranty offer

Example: a fictional HVAC company promised “lifetime labor” on all installs to match a competitor, without tracking callbacks. When it finally did, older systems under that promise were generating a growing share of unpaid visits. It replaced the offer with a fixed-term labor warranty on installs, extended for customers who keep an active maintenance plan, and built the reserve into its install prices. Sales held, and warranty callbacks became predictable.