Home Improvement Contract | Cal. B&P 7159, NY GBL 771

A home improvement contract covers work on an existing residential structure: remodeling, repair, replacement, restoration, or addition, including attached improvements such as a driveway, deck, or fence. It is a consumer contract before it is a construction contract, which is why legislatures police its form so closely. A commercial construction agreement between two businesses is a private allocation of risk, closer in spirit to a master services agreement for ongoing contractor engagements. A residential agreement has to carry statutory notices in prescribed type sizes, cap the deposit, disclose the license number, and give the owner a cancellation window no clause can shorten.

The line that trips people up runs between a home improvement contract and a service and repair contract. California draws it at Business and Professions Code section 7159.10: a service and repair agreement is one the homeowner initiated, priced under a statutory ceiling, paid in full on completion, with no financing and no down payment. Anything larger, anything sold at the door, and anything paid in installments falls back under section 7159 with the full disclosure package. Ground-up construction of a new dwelling is a third category, governed mainly by lien and warranty law.

Residential construction is governed at state level, through licensing boards and statutes that dictate what the contract must say. There is no single federal remodeling code, only two overlays that apply everywhere. The first is the Federal Trade Commission cooling-off rule at 16 C.F.R. section 429.1, which lets a buyer cancel any sale concluded away from the seller's usual place of business until midnight of the third business day, and requires two copies of a cancellation form at signing. The Cornell Legal Information Institute text of the door-to-door cancellation rule sets out the exact wording and minimum type size.

The second is the EPA renovation, repair and painting rule at 40 C.F.R. Part 745, which requires a certified firm, lead-safe work practices, and delivery of the Renovate Right pamphlet before disturbing painted surfaces in housing built before 1978. Above that floor sits the state layer, and that is where the teeth are. Licensing statutes decide whether the contractor can enforce the agreement at all; content statutes decide whether the writing survives a challenge. In several states a contract that omits a mandatory notice is voidable by the homeowner even when the work was done properly. Mechanics lien law then settles who can attach the property and when, which is why the payment and release machinery matters more than the warranty language most people read first.

The trigger most people recognize is the major remodel: a kitchen gut, a bathroom rebuild, a room addition. Anything involving permits, subcontractors, and payments spread over weeks belongs in writing before demolition day. Roof and exterior replacement is the second, and there the money often arrives from an insurance settlement, so the carrier's timetable drives the schedule. Solar installation is the third, and it catches contractors out regularly: California treats a residential solar system as home improvement work, so the deposit cap and notice requirements apply in full.

Two edge cases matter. Repair work signed inside a declared disaster area carries an extended cancellation right in several states, and a contractor who starts demolition in that window risks doing it for free. The other is the homeowner acting as owner-builder, hiring trades directly and inheriting the coordination risk. An owner-builder who pays a plumber in full without collecting a release can still be liened by that plumber's supplier. Landlords renovating occupied units carry a further layer, since access notices and habitability duties sit in a property management agreement drafted to state broker-license rules.

• The scope of work is drafted item by item and paired with an exclusions list naming what is not in the price: permit fees, dumpster rental, asbestos abatement, structural repairs found behind a wall. Most disputes start with something the owner assumed was included and the contractor billed as extra.
• The payment schedule is written in dollars and cents against defined milestones rather than calendar dates, which is what Business and Professions Code section 7159.5 demands in California and General Business Law section 771 expects in New York. The down payment field flags the ceiling for the selected state.
• The change order clause requires a signed writing, with its own price and schedule impact, before extra work begins. Verbal change orders are the most litigated feature of residential construction, and treating an unsigned change as a gift to the owner ends the argument early.
• The lien waiver mechanism ties each progress payment to a release from the contractor and, where relevant, from subcontractors and suppliers. California projects use the statutory forms at Civil Code sections 8132 to 8138, which lose effect if the wording is altered.
• The right to cancel notice is attached in duplicate, with the deadline running from the signature date. Contracts signed away from the contractor's office trigger the three business day federal window, which several states extend.
• The closing block fixes the substantial completion definition, the delay damages, and the retainage percentage, then records the license number, the liability and workers compensation carriers, the warranty period, and the venue for any dispute.

California sits at the strict end. The Contractors State License Board licenses anyone performing work above 500 dollars in labor and materials, and Business and Professions Code section 7159 lists what the contract must contain. Section 7159.5 caps that down payment at one thousand dollars or ten percent of the price, whichever is less, and later payments may never exceed the value of work already performed. A contractor working without a license recovers nothing under section 7031 and can be ordered to return every payment received.

Texas licenses electricians and plumbers but not general remodelers, so the leverage sits in property law. Property Code section 53.254 is the provision to watch: to fix a lien on a homestead, the contract must be executed before any labor or materials arrive, signed by both spouses if the owner is married, and filed with the county clerk. Miss any of the three and the lien fails. The Residential Construction Liability Act at Chapter 27 then obliges a homeowner to give written notice of a defect and allow a repair offer before suing.

Florida licenses through the Construction Industry Licensing Board and layers two notices onto residential contracts above 2,500 dollars. Florida Statutes section 713.015 requires the construction lien law warning in twelve point capitalized boldface, on the front page or a separate page the owner signs, and section 489.1425 requires the Homeowners' Construction Recovery Fund statement. Section 489.126 adds criminal exposure to the schedule: a contractor taking an initial payment above ten percent must apply for permits within 30 days and start work within 90 days of issuance.

New York licenses home improvement work at city and county level rather than statewide. General Business Law section 771 fixes the required contents, including the mechanics lien notice in conspicuous bold face type. Lien Law section 71-a backs it up: payments received before substantial completion go into escrow within five business days, unless the contractor posts a bond, indemnity, or irrevocable letter of credit. Working unlicensed in New York City, Nassau, Suffolk, Westchester, Rockland or Putnam forfeits payment entirely, on the contract and in quantum meruit alike, as the Court of Appeals held in B & F Building Corp. v. Liebig. The state-aware US real estate document library tracks these variations across a project's other paperwork.

You start by picking the state where the property sits, because that choice drives the statutory notices, the deposit ceiling, the cancellation period, and the lien wording in the finished file. Next comes the project type, which sets the default scope headings for a remodel, a roof, an addition, or a solar install. You then choose between a fixed price and a cost-plus structure; cost-plus opens fields for the markup percentage, the reimbursable categories, a guaranteed maximum, and the owner's audit rights. The milestone builder converts your payment plan into the dollars and cents format the strict states demand. Owners hiring trades directly should pair each one with an independent contractor agreement built for 1099 classification. The contract downloads as an editable Word file and a signature-ready PDF, with the cancellation notice on its own detachable page.

The oversized deposit is the classic. A contractor asks for half up front to order materials, the homeowner pays, and in California that request alone is a violation. Verbal change orders come next, and they end the same way every time: the owner remembers a favor, the contractor remembers a chargeable extra, and neither has paper. Paying the final invoice without collecting releases from subcontractors and suppliers is the third, and it produces a lien on a house already paid for in full. Signing a one-page estimate is the fourth, since a price and a signature line do not satisfy General Business Law section 771.

The quieter mistake is skipping permits to save time. Unpermitted work does not stay invisible: it surfaces at the next appraisal, insurance claim, or sale, when it must be declared on a seller disclosure statement drafted to state and federal rules. Insurers routinely deny claims on losses that originate in unpermitted construction. Naming only one spouse on a Texas homestead job belongs in the same category, along with letting a completion date slide without a written extension.