A renovation is a long-term investment in your home. The work done today should hold up for years — and when it doesn’t, you want to know exactly what recourse you have. Warranties are that recourse. But most homeowners accept a contractor’s vague assurance that “the work is guaranteed” without ever finding out what that actually means.

Here’s what to ask — before you sign and before you pay.

“A warranty is only as useful as what it says in writing. I’ve seen homeowners come to me with a serious defect — a leaking roof, a cracked foundation repair, faulty electrical work — and when they go back to the contractor, they hear ‘that’s not covered’ or ‘that’s wear and tear.’ If it’s not written down, you have almost nothing to stand on.”

— Fiona Gallagher, consumer protection advocate and former construction ombudsman with 12 years of experience helping local homeowners resolve contractor disputes

Understanding the Two Types of Warranties

Before asking your contractor about warranties, it helps to understand that there are two distinct types that apply to any renovation:

Workmanship warranty: This is the contractor’s promise that their work was done correctly. If the work fails due to how it was installed or constructed — a tile floor that cracks because it wasn’t properly adhered, drywall that separates because of improper taping, a roof that leaks because of incorrect flashing — the workmanship warranty is what covers the repair.

Manufacturer or product warranty: This is the warranty on the materials and products installed — the shingles, the windows, the appliances, the fixtures. These warranties run from the manufacturer and are typically passed through to the homeowner, but only if the product was installed correctly and registered properly.

You need both, and you need both in writing.

Questions to Ask About the Workmanship Warranty

Do you provide a written workmanship warranty?

Ask directly, and ask for it in writing. A verbal assurance that “we stand behind our work” is not a warranty. A written document specifying what’s covered, for how long, and how to make a claim is. If a contractor doesn’t provide written warranties as a matter of course, ask why — and consider whether you want to proceed.

What a good answer looks like: A written workmanship warranty document included with the contract or provided at project completion.

How long does your workmanship warranty last?

Industry standard for workmanship warranties on residential renovation work is typically one year, though this varies by trade and by contractor. Some contractors offer longer warranties as a differentiator — two years, even five for certain types of work. Ask what the duration is and why.

One year is a reasonable minimum. Less than that deserves scrutiny.

What a good answer looks like: A minimum of one year on workmanship, with a clear statement of whether specific elements carry longer coverage.

What exactly is covered under your workmanship warranty?

Don’t assume “workmanship” covers everything. Ask the contractor to explain specifically what types of failures or defects are covered. Does it cover settling and shrinkage? Cracks that develop over time? Water infiltration through a newly installed window? The more specific the answer, the better protected you are.

What is excluded from your workmanship warranty?

Exclusions matter as much as coverage. Common exclusions include: damage caused by the homeowner, normal wear and tear, settling that’s within industry norms, and damage caused by subsequent work done by others. Know the exclusions before you sign.

How do I make a warranty claim?

The claims process should be simple and clearly defined. Who do you contact? How quickly will they respond? How is the repair handled — do they come out and assess first, or do they repair immediately? What happens if you can’t reach the original contractor?

What a good answer looks like: A named contact, a response time commitment, and a clear repair process — in writing.

Questions to Ask About Product and Manufacturer Warranties

What warranties come with the materials and products you’re installing?

For every significant material or product — roofing, windows, flooring, cabinetry, appliances, HVAC equipment — ask what manufacturer warranty applies and what it covers. Warranties on products can range from one year to lifetime coverage, and the terms vary significantly.

Will you register the products on my behalf, or do I need to do that?

Many manufacturer warranties require product registration within a set period after installation — sometimes 30 or 60 days. If registration doesn’t happen, the warranty may be reduced or voided. Ask whether the contractor handles registration or whether that’s your responsibility.

What a good answer looks like: Either the contractor handles registration and provides confirmation, or they provide you with all the information you need to register immediately after installation.

Will I receive the original warranty documents and product manuals?

Every warranty document and product manual should be handed over to you at project completion. These are your documents — they belong to you and should be kept with your property records for the life of the product.

Statutory Warranties: What You May Already Be Entitled To

Depending on your jurisdiction, you may have warranty protections beyond what the contractor offers. In many regions, for example, new home construction is covered under Tarion warranty protection, which mandates statutory warranties on workmanship, materials, and structural integrity. For renovations (as opposed to new construction), protections vary — but consumer protection legislation in most regions provides some baseline recourse for shoddy workmanship regardless of what’s in the contract.

Ask your contractor whether any statutory warranties apply to your project. If you’re unsure about your rights, a consumer protection office or construction lawyer can advise you.

Before the Project Ends: Warranty Checklist

Before you make final payment, confirm the following:

  • Written workmanship warranty received, reviewed, and understood
  • Duration and coverage confirmed
  • Exclusions understood
  • Claims process documented
  • All product and manufacturer warranties received
  • Product registration completed or information provided
  • All manuals and warranty cards in hand

For more on what to confirm before final payment, see: Questions to Ask Before Making Final Payment to a Contractor

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