A home improvement contract has to be a written, signed agreement, and in most states it must contain a defined list of terms: the contractor’s legal name, address, and license number; a detailed scope of work; the total price; start and completion dates; a statement that the contractor will pull required permits; and specific consumer notices about liens, insurance, and your right to cancel. Home improvement contract requirements come from both federal rules and state licensing laws, and a contract missing mandatory terms can be voidable, expose the contractor to fines, or cost the contractor their license.
What Must Be in Writing
The document should be signed by both the homeowner and the contractor. Most states require it to identify the contractor’s full legal name, business address, and professional license number. Running that license through the state licensing board’s database before you sign is one of the most useful things you can do. It confirms the contractor has met bonding, insurance, and examination requirements to work legally in your area.
The core of the contract is the scope of work. It should describe the specific tasks, materials, brands, and dimensions involved, leaving as little room for interpretation as possible. “Remodel kitchen” invites disputes. “Remove existing cabinets, install 30 linear feet of maple shaker cabinets from [manufacturer], replace countertops with quartz” does not.
Beyond scope, most states require approximate start and completion dates, the total price including taxes and permit fees, and a statement that the contractor is responsible for obtaining all required building permits. Many jurisdictions also require each page to be numbered with the total page count. Contracts missing these elements risk being declared voidable by a court, and the contractor can face administrative fines or action against their license.
Disclosures the Contractor Must Give You
Several notices sit outside the scope-and-price terms and exist to warn you about risks you might not otherwise see coming.
Mechanics Lien Warning
A mechanics lien warning tells you that subcontractors and suppliers who go unpaid can file a legal claim against your property, even if you already paid the general contractor in full. In serious cases, that lien can lead to a forced sale of the home. Many states require the warning to appear in the contract. Treat it as a prompt to request lien releases throughout the project, not just at the end.
Insurance Verification
Most states require the contract to disclose whether the contractor carries workers’ compensation and commercial general liability insurance, along with the carrier’s name and policy details. Without workers’ compensation coverage, you could be on the hook for injuries to workers on your property. Ask for a certificate of insurance directly from the carrier rather than relying on a document the contractor hands you.
Lead-Based Paint Disclosure for Pre-1978 Homes
Federal law requires contractors doing renovation work on homes built before 1978 to give you the EPA pamphlet “Renovate Right” before any work begins. The requirement is set out in 40 CFR Part 745, Subpart E, which addresses the hazards of lead-based paint disturbed during renovation.1eCFR. 40 CFR Part 745 Subpart E – Residential Property Renovation The pamphlet must be delivered no more than 60 days before work starts, and the contractor must get your written acknowledgment of receipt. Civil penalties under TSCA Section 16 are adjusted for inflation, and the EPA has pursued penalties of $37,500 or more per violation.2eCFR. 40 CFR Part 745 – Lead-Based Paint Poisoning Prevention
Notice of Cancellation
When the FTC’s Cooling-Off Rule applies, the contractor must physically hand you a Notice of Cancellation form at signing. It has to be a separate, easily detachable document that explains your right to cancel within three business days. Failing to provide the form is itself a violation, and it extends your cancellation window until the form is delivered.
Limits on Your Deposit and How Payments Should Be Structured
State caps on how much a contractor can collect before starting work vary more than most homeowners realize. Some states cap the initial deposit at 10% of the total contract price or $1,000, whichever is less. Others allow up to one-third of the contract price. A number of states impose no statutory cap at all. Check your state’s specific limit before signing, because a contractor demanding more than the legal maximum may be committing a misdemeanor.
After the deposit, the balance should be structured as progress payments tied to specific milestones: completion of demolition, framing inspection, delivery of custom materials, and so on. Paying for work not yet performed or materials not yet delivered is prohibited in many states. Even where it isn’t explicitly illegal, it shifts all the financial risk onto you. The schedule should be spelled out in the contract so both sides know exactly when each payment is due and what triggers it.
A retainage clause adds leverage. Retainage withholds a percentage of each progress payment, commonly 5% to 10%, until the entire project is complete and passes final inspection. Some homeowners also hold back a portion until the window for filing mechanics liens has expired. If your contractor resists a retainage clause, take note.
Your Three-Day Right to Cancel
The Federal Trade Commission’s Cooling-Off Rule, codified at 16 CFR Part 429, gives you three business days to cancel certain home improvement contracts without penalty or explanation.3eCFR. 16 CFR Part 429 – Rule Concerning Cooling-Off Period for Sales Made at Homes or at Certain Other Locations It applies when the sale takes place at your residence (for purchases of $25 or more) or at a temporary location that isn’t the contractor’s permanent place of business (for $130 or more).
When It Applies
The rule covers more situations than homeowners often expect. Even if you called the contractor and invited them to your home for an estimate, the three-day right still applies if the contract is signed at your residence. The exemption for buyer-initiated contact is narrow: it covers only cases where you specifically requested a visit to repair or maintain personal property, like an appliance, not real property improvements like a kitchen remodel.3eCFR. 16 CFR Part 429 – Rule Concerning Cooling-Off Period for Sales Made at Homes or at Certain Other Locations And even under that exemption, if the contractor upsells you services beyond the requested repair, those additional services fall under the rule.
The rule does not apply if you negotiate and sign at the contractor’s permanent showroom or office. It also does not apply to transactions conducted entirely by mail or phone with no in-person contact, or to genuine emergencies where you provide a signed, handwritten statement waiving the cancellation right and describing the emergency.
How to Cancel
Sign and date the cancellation notice you received at signing, or any other written notice, and mail or deliver it to the contractor’s business address no later than midnight of the third business day after the transaction.3eCFR. 16 CFR Part 429 – Rule Concerning Cooling-Off Period for Sales Made at Homes or at Certain Other Locations No reason is required. Certified mail creates a paper trail proving the date, which matters if the contractor later disputes the timeline.
Once the contractor receives valid notice, they must refund all payments and return any trade-in property within 10 business days. They must also cancel any security interest created by the contract, including a lien. If they delivered materials to the property, they have 20 days from the cancellation date to retrieve them. If they don’t, you can keep or dispose of the materials without further obligation.3eCFR. 16 CFR Part 429 – Rule Concerning Cooling-Off Period for Sales Made at Homes or at Certain Other Locations
Getting Changes in Writing
Almost every renovation hits a surprise. Rotted framing behind drywall, a plumbing line where the plans said there wouldn’t be one. When the scope needs to change, a written change order is the only safe way to document it. It should describe the new work, the reason for the change, an itemized cost adjustment, and any impact on the completion date. Both parties should sign before the additional work begins.
Verbal agreements to modify scope are where home improvement disputes most often start. You say “go ahead and add the outlet,” the contractor says “that’ll be extra,” and six weeks later neither side agrees on the price. Courts in many states will enforce oral modifications if the homeowner clearly authorized the work, but proving what was agreed to becomes a credibility contest. Written change orders eliminate that problem.
Watch for scope reduction too. If a contractor suggests removing a task from the original contract, the price reduction should be documented in a change order. Otherwise, the final invoice may not reflect the work that was actually performed.
Protecting Yourself From Mechanics Liens
A mechanics lien is a legal claim contractors, subcontractors, and suppliers can file against your property if they aren’t paid. The risk is straightforward: you pay the general contractor, the general contractor doesn’t pay a subcontractor, and the subcontractor files a lien against your home. You can end up paying twice for the same work.
Preliminary Notices
In many states, subcontractors and suppliers must serve you with a preliminary notice within a set timeframe, often 20 days after beginning work or delivering materials, to preserve their right to file a lien later. If they miss the deadline, they lose lien rights for work performed before the notice. Treat these notices as informational. They tell you who is working on the project and who you’ll eventually need lien releases from.
Lien Waivers
The most effective protection is collecting lien waivers from every party on the project with each progress payment. A conditional waiver releases the signer’s lien rights once payment clears. An unconditional waiver takes effect immediately upon signing. Conditional waivers are generally safer because the release only becomes effective after the money actually changes hands. About a dozen states require specific statutory forms, so check whether your state mandates a format.
Requiring your general contractor to collect waivers from all subcontractors and suppliers, and to provide you copies, should be a contract requirement rather than an afterthought. Pushback on this point is worth taking seriously.
Warranties You Get on the Work
Home improvement warranties come in two forms, and the difference matters when something goes wrong a year after the project wraps up.
An express warranty is a written guarantee the contractor provides, typically covering workmanship and materials for a stated period, often one to two years, though it varies by contractor and project type. Express warranties should be spelled out in the contract: what’s covered, how long, and what you need to do to make a claim. If the contractor verbally promises their work “for five years” but the contract says one year, the contract controls.
An implied warranty of workmanship exists in most states regardless of whether the contract mentions warranties. This doctrine holds that a contractor’s work must meet a baseline standard of quality. It typically covers latent defects, meaning problems not visible to a reasonable person during inspection, and generally benefits only the original homeowner who hired the contractor. The window to bring a claim depends on state statutes of limitation and repose, which vary widely.
If the Work Is Defective
Right-to-Cure Laws
More than 20 states require you to give the contractor written notice of alleged defects and an opportunity to inspect and repair before filing a lawsuit. These “right to cure” or “notice and opportunity to repair” statutes typically require 30 to 90 days of advance notice. The notice must describe the defects in detail and may need to include supporting evidence like photographs or expert reports. Skip this step and go straight to court, and your case can be dismissed.
Arbitration Clauses
Many home improvement contracts include mandatory arbitration clauses requiring disputes to go to a private arbitrator rather than a courtroom. Under the Federal Arbitration Act, these clauses are generally enforceable. Arbitration is typically faster and cheaper than litigation, but the arbitrator’s decision is usually final with almost no right to appeal. Some states impose additional requirements for residential contracts, such as larger font, a specific location in the document, or a separate signature acknowledging the clause. Before signing, understand that you are waiving your right to a jury trial.
Contractor Recovery Funds
Some states maintain contractor recovery funds financed by licensing fees. These funds can compensate homeowners who suffer financial losses from fraud, abandonment, or incompetent work by a licensed contractor. You typically must first get a court judgment against the contractor, exhaust efforts to collect, and then apply to the fund within a set deadline. Claim limits vary; some states cap individual claims at $75,000 or less. Not every state offers this protection, and the fund generally won’t cover attorney’s fees or interest.
Making Sure Permits Are Pulled
The contract should state that the contractor is responsible for obtaining all required building permits, and you should verify permits were actually pulled before work begins. Skipping permits can seem harmless. It isn’t.
Unpermitted work can trigger fines from the local building department, and some jurisdictions assess daily penalties while unauthorized construction is in progress. A building inspector who discovers unpermitted work can order it halted or, in serious cases, demolished and rebuilt with proper permits. Insurance companies can deny claims for damage tied to unpermitted renovations. An electrical fire caused by uninspected wiring, for example, may not be covered. Consequences also follow the property forward: unpermitted additions may be excluded from appraised square footage, and disclosure requirements at resale can turn a missing permit into a broken deal. Retroactive permitting is often possible, but it involves inspections, potential fines, and sometimes opening finished walls. Getting it right the first time is cheaper.