Remodeling Contractor Warranty: What It Covers and Excludes

Quick answer

A remodeling contractor warranty is the contractor’s promise to repair defects in their workmanship, and sometimes in materials they supplied, that appear within a stated period after the job is finished, on the terms written in the contract or warranty document.

It sits beside, not in place of, product warranties from manufacturers and any warranty that state law imposes. Knowing which promise covers which failure is what makes a warranty useful.

Quick facts

The key facts about Remodeling Contractor Warranty, with sources:

What it usually covers: Defects caused by the contractor’s workmanship ²
Separate from: Manufacturer warranties on products and equipment ¹
Federal warranty law: Magnuson-Moss covers written warranties on consumer products, not on services alone ¹
Example statutory terms (Minnesota): 1 year workmanship; 2 years plumbing, electrical, HVAC; 10 years major structural ²
Clock starts (Minnesota): The date the home improvement work was completed ³
Where it belongs: In writing, in or with the signed contract ⁴

Key takeaways

A contractor warranty covers the contractor’s work; product warranties cover the products.
Federal warranty law applies to written warranties on consumer products, including items installed in a house, but not to warranties on services alone.
Some states write warranties into law; Minnesota sets 1, 2 and 10 year home improvement warranties by type of work.
Exclusions and claim steps matter as much as the length of the warranty.
The warranty is only as good as the contractor’s ability to honor it, so check license and standing first.

What a contractor warranty is, in plain English

When a remodeler finishes your kitchen, two kinds of things can go wrong. A product can fail: a faucet cartridge, a dishwasher pump, a cracked tile batch.

Or the work can fail: a drain that was not sloped right, grout that cracks because the floor flexes, a door that was hung out of square. A contractor warranty is the promise that covers the second kind.

In practice, that promise has three parts. It names what is covered, usually defects in workmanship and sometimes materials the contractor supplied. It names how long.

And it names how you claim and what the contractor will do, usually repair. Everything outside those words is not covered by that promise, though other promises may apply.

This page explains the concept. For the clauses a contract should hold, including how the warranty is written into it, see our guide to remodeling contracts.

How the different promises stack up on one job

A single remodel can carry several warranties at once. Each one answers to a different party.

The contractor’s written warranty covers their workmanship for the period they state.
Manufacturer warranties cover products. Under federal law, a written warranty on a consumer product costing more than 10 dollars must be titled “full” or “limited” ¹.
Implied warranties are promises about a product’s condition at sale that exist under state law; federal law bars disclaiming them on a consumer product when a written warranty is given, though a limited warranty may cap their length ¹.
Statutory warranties are terms some states impose by law on home improvement work, whether or not the contract mentions them ².

System Who stands behind what on a remodel

Your finished remodelSeveral overlapping promises

Contractor warrantyWorkmanship, per the written terms
Manufacturer warrantyProducts: full or limited, per federal titling rules
Implied warrantyProduct condition at sale, under state law
State statutory warrantyMinimum terms some states impose by law

Federal titling and implied-warranty rules from the FTC guide; statutory example from Minnesota law. Source: [1] [2]

Types of warranties on a remodeling job

Type	Who gives it	What it typically covers
Workmanship (labor) warranty	The contractor	Defects from how the work was done
Materials warranty from the contractor	The contractor, if written that way	Materials the contractor supplied
Full warranty (product)	Manufacturer	Meets all federal “full” conditions, such as service to any owner during the term ¹
Limited warranty (product)	Manufacturer	Misses at least one “full” condition; may cap implied warranties to its length ¹
Implied warranty	Arises under state law	Product condition at the time of sale ¹
Statutory home improvement warranty	Imposed by some states	Minnesota: workmanship, systems and major construction defects for set terms ²

Example: Minnesota’s home improvement warranties

Minnesota is one state that writes remodeling warranties into law. Under Minnesota Statutes 327A.02, subdivision 3, the home improvement contractor warrants the work to the owner as follows ². The warranty date is the day the work was completed ³.

Type of home improvement work	Statutory term	What must be free of defects
Major structural changes or additions	1 year	Defects from faulty workmanship and defective materials due to noncompliance with building standards ²
Major structural changes or additions	10 years	Major construction defects due to noncompliance with building standards ²
Plumbing, electrical, heating or cooling installation	2 years	Defects from faulty installation due to noncompliance with building standards ²
All other home improvement work	1 year	Defects from faulty workmanship or defective materials due to noncompliance with building standards ²

Chart Minnesota statutory home improvement warranty terms

Minnesota law sets a 1-year workmanship warranty on home improvement work, 2 years on plumbing, electrical, heating and cooling installations, and 10 years against major construction defects on structural changes and additions.

Minnesota statutory home improvement warranty terms (years)
Item	Value (years)
Workmanship and materials (all work)327A.02 subd. 3(a)(1), (c)	1 years
Plumbing, electrical, heating, cooling327A.02 subd. 3(b)	2 years
Major construction defects (structural work)327A.02 subd. 3(a)(2)	10 years

Data period: Minnesota Statutes 327A.02, as published by the Revisor of Statutes

Source: [2]

Minnesota defines a “major construction defect” as actual damage to the load-bearing portion of the home improvement that affects its load-bearing function and vitally affects residential use, not damage from flood, earthquake or other natural disaster ³.

After written notice, the contractor must inspect within 30 days ². Other states differ; many have no statutory remodel warranty at all.

Where the warranty shows up in your paperwork

In the contract. California’s contractor board says a thorough contract tells how the work will be done, when, with what materials and at what cost, and that every promise should be in writing ⁴. A warranty promised only out loud is hard to enforce.

In a separate warranty document. Some contractors hand over a warranty certificate at completion. For products, federal rules require warranty terms to be stated in a single, clear, easy-to-read document ¹.

In the closeout packet. Product manuals, registration cards and model numbers belong here. Many product warranties depend on registration or on proof of installation per the maker’s instructions.

In the bid comparison. Warranty length and scope are a real difference between bids. Our quote comparison tool has a place to record them.

Ask “who do I call?” for each item

Before final payment, list the main products and ask who handles a claim for each: the contractor, the installer or the maker. Write the answers on your closeout sheet with model and serial numbers.

What a good warranty does, and where it stops

What it does

Puts in writing that the contractor will come back to fix their own defects.
Sets a clear time window and claim process.
Covers the gap between product failure and installation failure.
Can add to, but not cut below, any warranty state law imposes ².

Where it stops

Usually excludes normal wear, owner damage and products under their own warranty.
Depends on the contractor still being in business.
Federal warranty law does not apply to warranties on services alone ¹.
Vague terms like “we stand behind our work” are hard to enforce.

What a contractor warranty usually does not cover

Most workmanship warranties exclude normal wear and tear, damage from misuse or lack of maintenance, changes made by others, and products that carry their own warranty. Many also exclude settling cracks within limits and natural variation in stone and wood. Read the exclusions line by line; that is where most disputes start.

A warranty is also not a fix for a contractor who disappears.

Connecticut’s Department of Consumer Protection reported an average of about 1,000 home improvement complaints a year, including failure to complete work and poor workmanship ⁵.

Checking license, registration and insurance before you sign protects the warranty more than any clause. Our contractor insurance requirements research shows what each state asks for.

What affects warranty terms and their value

We do not price warranties. What shapes their value is the length of the term, what counts as a defect, whether materials are included, whether the warranty transfers to a new owner, the claim and response steps, and the contractor’s staying power. Extended or third-party warranties, where offered, add their own terms and exclusions.

The clock matters. Minnesota starts its home improvement warranties on the day the work is completed ³, and many contracts do the same. Product warranties start on their own dates, often purchase or installation. Note each date at closeout. For how budgets handle contingencies and allowances, see our remodeling cost guide.

How to make a warranty claim

Find the written warranty and check that the problem is inside its term and scope.
Take dated photos and note when you first saw the problem.
Send written notice to the contractor, keeping a copy; in Minnesota, written notice starts the process and the contractor must inspect within 30 days ².
Let the contractor inspect and propose a repair.
If a product failed, open a claim with the maker too, with model and serial numbers.
If the claim stalls, contact your state’s contractor licensing or consumer protection agency.

Owner upkeep that keeps a warranty valid

Many warranties exclude damage from neglect. Simple upkeep protects your claim.

Follow care instructions for finishes, grout, sealers and flooring.
Run bathroom fans and fix leaks quickly; water damage from neglect is a common exclusion.
Register products where the maker asks for it.
Keep the contract, warranty, invoices and photos in one folder.
Do not let others alter warranted work without asking the contractor first.

Warning signs in a warranty offer

A “lifetime” warranty with no definition of whose lifetime or what is covered.
Only verbal promises; get every promise in writing ⁴.
An unlicensed or unregistered contractor; a warranty from an unregistered business may be worth little ⁵.
A demand for a large deposit or cash; Connecticut’s regulator calls high-pressure deposit demands a red flag ⁵.
Clauses that waive rights you have under state law; ask your state’s consumer agency or an attorney.

Structural, electrical and water defects need a pro now

If a warranty problem involves sagging framing, cracking at load-bearing walls, sparking or hot outlets, or active water leaks, stop using that area and call the contractor and the right licensed trade right away. Do not open walls or cut framing yourself to look; a licensed engineer or electrician should assess it.

Laws that shape remodeling warranties

Federal: Magnuson-Moss Warranty Act. The FTC’s guide explains that the Act governs written warranties on consumer products, which includes property attached to or installed on real property.

It does not apply to warranties on services, but it does apply when a warranty covers both the parts provided and the workmanship.

It sets full-versus-limited titling for products over 10 dollars, bars disclaiming implied warranties on a consumer product, and generally bars tie-in conditions ¹.

State statutes. Some states set minimum warranties for home improvement work. Minnesota Statutes 327A.01 and 327A.02 are one example, with defined terms, warranty dates and inspection timing ³ ².

Many states instead regulate the contract itself; California, for example, requires a written contract for home improvement projects over 500 dollars in combined labor and materials ⁴.

Not legal advice. Warranty rights depend on your state and your contract. Ask your state contractor board, consumer agency or an attorney about a specific dispute.

Contractor warranty vs related protections

Protection	What it answers	Main difference
Contractor warranty	Will they fix their workmanship?	A promise in the contract or warranty document
Manufacturer warranty	Will the maker fix the product?	Covers products, titled full or limited ¹
Punch list	What is unfinished at the end?	Items owed before completion, not later defects
Construction defect claim	Was the work legally deficient?	A legal claim, with its own deadlines, beyond the warranty
Final inspection	Does the work meet code?	A code check by the building department, not a quality promise

Warranty myths

Myth A product warranty covers bad installation.: Reality Product warranties cover products; installation defects fall to the contractor’s promise or state law.
Myth Federal law covers my contractor’s labor warranty.: Reality Magnuson-Moss does not apply to warranties on services alone, though it applies when parts and workmanship are covered together ¹.
Myth No written warranty means no warranty at all.: Reality Implied warranties and, in some states, statutory warranties can still apply ¹ ².
Myth Passing inspection means no defects.: Reality Inspections check code minimums; warranties cover performance afterward.
Myth Longer is always better.: Reality A long warranty with wide exclusions can cover less than a short, clear one.

State law changes the baseline

The biggest variable is your state. Minnesota imposes 1, 2 and 10 year home improvement warranties by statute ².

Other states set no statutory remodel warranty but regulate contracts, deposits and contractor registration, as California and Connecticut do ⁴ ⁵.

Deposit caps and licensing rules also decide how much pull you have if a warranty claim stalls.

When the warranty should sway your choice of contractor

Compare warranties when bids are close on price and scope. Look at length, what counts as a defect, exclusions, transferability and the claim steps. Then weigh it against how long the company has operated and whether its license is in good standing.

Ask for the warranty text before you sign, not at closeout. Our guide to choosing a remodeling contractor covers the checks that make a warranty worth having.

Decision guide Warranty decision guide

If Warranty is verbal only: Then Ask for it in writing before signing
If Two bids, similar price: Then Prefer the clearer warranty and stronger license record
If Your state imposes a statutory warranty: Then Treat it as the floor; the contract can add more
If A product failed: Then Claim with the maker; ask the contractor about labor

Questions about Remodeling Contractor Warranty

What does a contractor warranty cover?

Usually defects caused by the contractor’s workmanship, for a stated period, with repair as the remedy. Some also cover materials the contractor supplied. Normal wear, owner damage and products with their own warranty are common exclusions. The written terms decide, so read them before you sign.

How long should a remodeling warranty last?

There is no single federal rule. Many contractors offer one year on workmanship. Some states set minimums by law: Minnesota requires 1 year on workmanship, 2 years on plumbing, electrical, heating and cooling installations, and 10 years against major construction defects on structural work.

Is a workmanship warranty the same as a manufacturer warranty?

No. A workmanship warranty covers how the job was done; a manufacturer warranty covers the product itself. If a faucet cartridge fails, that is the maker’s warranty. If the faucet leaks because it was installed wrong, that is the contractor’s. Keep both sets of paperwork.

Does the Magnuson-Moss Act apply to contractors?

Only in part. The FTC says the Act covers written warranties on consumer products, including items installed in a home, but not warranties on services alone. If a warranty covers both the parts provided and the workmanship, the Act applies.

When does a remodeling warranty start?

Usually on completion of the work, but the contract decides. Minnesota’s statute starts the home improvement warranty on the date the work was completed. Product warranties often start at purchase or installation. Record each start date at closeout.

What is not covered by a contractor warranty?

Common exclusions are normal wear and tear, damage from misuse or poor maintenance, changes made by others, natural variation in materials, minor settling cracks, and products under their own warranty. Some warranties also require prompt written notice. Read the exclusions line by line.

How do I file a warranty claim with my contractor?

Send written notice with photos and the date you first noticed the problem, and keep a copy. Let the contractor inspect and propose a repair. In Minnesota the contractor must inspect within 30 days of notice. If the claim stalls, contact your state contractor board or consumer agency.

Does a contractor warranty transfer to a new owner?

Only if its terms say so or state law provides it. Minnesota defines the owner to include subsequent owners of the building. Many private warranties are limited to the original owner. If you may sell, ask for transferable terms in writing.

What if my contractor goes out of business?

The workmanship warranty may become hard or impossible to enforce. Product warranties from manufacturers usually still apply. Your state’s licensing board, a recovery fund where one exists, or an attorney can explain your options. Checking a contractor’s record before hiring is the best protection.

Sources

Federal Trade Commission, Businessperson’s Guide to Federal Warranty Law, retrieved October 13, 2026.
Minnesota Statutes 327A.02, Statutory warranties (Office of the Revisor of Statutes), retrieved October 13, 2026.
Minnesota Statutes 327A.01, Definitions (Office of the Revisor of Statutes), retrieved October 13, 2026.
California Contractors State License Board, What Should I Look for in a Contract and Binding Agreements?, retrieved October 13, 2026.
Connecticut Department of Consumer Protection, Home Improvement Projects Require a Contract, Registered Contractor (7 May 2025), retrieved October 13, 2026.

Expert review

Written by the HyreRemodel Research team. Not yet reviewed by an outside expert. We say so rather than imply a review that has not happened; see our editorial policy.

How the numbers were checked: Federal warranty rules (scope, services, installed property, titling, implied warranties, tie-ins, single document) are from the FTC’s Businessperson’s Guide.

Statutory warranty terms, warranty date, owner and major-defect definitions and 30-day inspection are from Minnesota Statutes 327A.01 and 327A.02 on the Revisor’s site. Contract advice is from California’s CSLB; complaint and deposit figures from Connecticut DCP’s 2025 release. No prices are given. This page is not legal advice.

Suggest a correction. We fix errors and say what changed.