Construction Warranty Policy: What to Promise, What to Exclude, and How to Document It

Sound Familiar?

Your warranty policy needs work if any of these are true:

• You handle warranty claims case-by-case with no written policy defining what you cover and for how long
• You’ve absorbed warranty costs for damage that wasn’t caused by your work because you had no exclusions language
• A client has called about a warranty claim on work you completed 2-3 years ago with no statute of limitations in your contract
• You’ve had a dispute about whether something was a warranty repair or a billable service call
• Your contract has no warranty language at all — or generic boilerplate you’ve never reviewed

What We Found

What a Builder Warranty Policy Must Define

A construction warranty policy that actually protects you defines five things: what is covered, what is excluded, how long coverage lasts by work type, how a claim is made and resolved, and whether the warranty transfers to a new owner if the property sells.

Most builders either have no policy or have a one-liner in their contract that says “we stand behind our work” — which is legally meaningless and practically useless. The absence of a written policy means every warranty conversation defaults to negotiation, where the client’s memory of what was promised typically beats your memory of what you actually said.

Coverage period by work type:

• Labor and materials: 1 year is industry standard for residential construction. This covers defects in workmanship and materials under normal use conditions.
• Structural components: 10 years for structural defects (framing, foundation, load-bearing elements) is standard in most states — often required by statute regardless of what your contract says.
• Manufacturer warranties: Pass-through only. Roofing, windows, HVAC, appliances all carry manufacturer warranties that your client holds directly. Your contract should explicitly state that product warranties are between the client and manufacturer, not covered under your labor warranty.
• Mechanical systems: 1-2 years for plumbing, electrical, and HVAC workmanship. Equipment manufacturer warranty governs the equipment.

The most important part of your coverage period section isn’t what you cover — it’s what triggers the clock. Warranty period starts at substantial completion of the work, not at contract signing or project close. Define “substantial completion” explicitly in your contract.

Exclusions: The Language That Protects Your Business

The exclusions section of your warranty policy is where most builders leave money on the table. Without explicit exclusions, every damage claim becomes a potential warranty claim — even damage caused by the client, normal wear and aging, or deferred maintenance the client was responsible for.

Standard exclusions that belong in every construction warranty policy:

• Damage caused by client misuse, alteration, or modification after completion
• Normal wear and tear (paint fading, caulk shrinkage, wood movement from seasonal humidity changes)
• Damage from failure to perform required maintenance (gutters not cleaned, sealant not reapplied, filters not changed)
• Damage from acts of God, flooding, fire, or other external events outside your control
• Work performed by other contractors after your completion
• Cosmetic issues that don’t affect function (minor surface scratches, nail pops in drywall beyond first year)
• Damage caused by client-selected materials that were installed per manufacturer spec

The hardest exclusion to enforce is the last one. If a client selects a composite decking product you advised against because of its performance in freeze-thaw cycles, and it fails two years later exactly as you predicted, you need documentation of your recommendation — not just a warranty exclusion in the contract. The combination of documented advice and warranty exclusion gives you a defensible position. Either one alone is weak.

After fixing your warranty policy, the next step is tightening your client onboarding process — the first 7 days set expectations that determine whether warranty claims become disputes or routine resolutions.

The Claim Process: How to Handle Requests Without Losing Time or Money

A warranty policy without a defined claim process is half a policy. You need to tell clients upfront: how to submit a claim, how long they have to wait for a response, and how long resolution takes. Without this, every warranty call creates a new negotiation about urgency, priority, and who pays for what.

The four-step warranty claim process I install with builders:

1. Written request only. All warranty claims must be submitted in writing — email or through your client portal. No verbal warranty claims. This creates a documented record of exactly what was claimed, when it was submitted, and what was said. It also slows down the emotional caller who wants to talk for 45 minutes about a nail pop.
2. 5-business-day response. Acknowledge receipt of the claim in writing within 5 business days. Not to fix it — to confirm receipt and provide a preliminary assessment of whether it falls within your warranty coverage. This manages the client’s anxiety without committing to a timeline you can’t keep.
3. 30-day resolution. Complete covered warranty work within 30 days of claim approval. Emergency items (active leaks, HVAC failure in extreme weather) get 48-hour emergency response language. Standard items get 30 days.
4. Written completion confirmation. Document when warranty work was completed, what was done, and have the client sign off. This closes the loop and prevents the same issue from being re-claimed six months later.

This process protects you because it creates a paper trail at every step. The most expensive warranty situations I’ve seen were ones where nothing was documented — no written claim, no written response, no completion record. When a dispute goes legal, whoever has the better documentation wins.

Frequently Asked Questions