Plumbing & HVAC warranty template (free wording)
Short answer: A plumbing or HVAC warranty is a written promise that covers your workmanship (labor) for a set period, usually one year, passes through the manufacturer's warranty on equipment and parts, lists what is excluded (customer-supplied parts, misuse, freezing, clogs, lack of maintenance) and explains how the customer makes a claim. Put it on the service agreement or invoice so it is signed or delivered with every job.
Free warranty template wording (copy and edit)
Labor warranty. [Company] warrants the workmanship on the work described on this invoice for [12] months from the completion date. If a defect in our workmanship appears during this period, we will return and correct it at no charge for labor.
Parts and equipment. Parts and equipment we supply are covered by the manufacturer's warranty. We will help you register equipment and process manufacturer claims. Labor to replace a part under manufacturer warranty after the first [12] months is charged at our standard rates unless an extended labor plan was purchased.
Exclusions. This warranty does not cover parts or fixtures supplied by the customer; damage from misuse, freezing, flooding, power surges, chemical drain cleaners or objects flushed or placed in drains; normal wear; work altered by others; or equipment not maintained according to the manufacturer's schedule.
Making a claim. Contact us at [phone/email] with your invoice number. We will schedule an inspection within [3] business days. Emergency leaks should be isolated by shutting off the water supply until we arrive.
This warranty is in addition to any rights you have under state law.
How long should a plumbing or HVAC labor warranty be?
One year on labor is the common baseline for residential plumbing repairs and HVAC repairs. Many companies offer longer labor warranties on installations (2–10 years on a new water heater or HVAC system), often tied to an annual maintenance plan, because regular maintenance is what keeps the manufacturer's warranty valid and reduces your callback risk.
Drain cleaning is the exception: most plumbers offer a short guarantee (30–90 days) or none at all, because re-clogs are usually caused by what goes down the drain.
Where the warranty belongs
Put the full warranty clause in your service agreement so the customer signs it before work starts, then print a one-line summary and the warranty period on the invoice and the job completion report. That way the customer has it in writing, and you have proof of what was promised.
Our plumbing and HVAC service agreement templates include a complete warranty section, and the maintenance plan agreements include extended-labor options for members.
Frequently asked questions
Is a plumbing warranty required by law?
Most states do not require a specific workmanship warranty for plumbing or HVAC repairs, but implied warranties can apply and some states set rules for new-construction or home-improvement work. A written warranty sets clear limits and is better for both sides. This is not legal advice; check your state's contractor rules.
Does the manufacturer warranty cover labor?
Usually not. Manufacturer warranties typically cover the part or equipment only. Labor to diagnose and replace a failed part is the contractor's labor warranty or is billed, unless the customer bought an extended labor plan.
Can I use this warranty wording on an invoice?
Yes. Use the short version (warranty period and a reference to the full terms) on the invoice, and keep the full clause in the service agreement.
