Planning a Home Renovation in Washington: Scope, Budget, and Hiring

A Washington renovation goes well when the work is settled before it is priced, the address is checked before the design is fixed, and the sequence and the money are written down before anyone starts. Three things decide most of the rest: what the city or county requires of the project, what the building’s age is hiding in its materials, and how the work is defined in a contract. Settle those three, and choosing a contractor becomes a comparison rather than a gamble.

This page is the overview. It keeps the decisions that belong to the whole project and routes the rest: how to define scope, how permits and inspections work, what an older Washington house can hide, how a budget is built, how to hire, and what to write down. Each of those has a page of its own, and this one says where each question goes.

The decisions a renovation asks

The rest of this page takes those in turn, at the depth the whole-project view needs. The detail is the support subjects’ work.

Define the work before you describe it to anyone

L&I’s consumer guidance starts with planning, and it says why: “If you know what you want done and can clearly explain it, you’re less likely to encounter problems.” It adds the distinction that saves the most argument later, telling owners to have “a clear idea about what you would like to do, versus what you need to do.”

Write the objective as an outcome the house has to deliver, not as a product. “The upstairs stays under 78 degrees in August” and “the basement stops smelling of damp” are objectives. “New windows” and “a dehumidifier” are two possible answers to them. An objective can be tested when the work is done, and it lets a contractor propose a different answer.

Then sort the work into three lists: what must happen, because something is broken, unsafe or about to fail; what you want, because the house would be better; and what you have ruled out, so that no bidder quietly assumes it. Which work comes first is a risk question, and it is its own subject. So is the order in which one job depends on another, because moving a wall, a drain or an electrical panel changes the trades and the approvals that follow. A finish change rarely does.

Walk the house with a notebook and a camera. Record what is there now — the age of the finishes, the condition of the roof, where water has been, where the main shutoff and the panel are — before anything is quoted, because every bidder is pricing the house they can see. A roof that looks sound from the driveway can still be sending water where it should not go, and the roof-care guide sets out the observations worth making from the ground before a project is planned under it.

What the address requires: permits and inspections

Washington keeps a state building code. RCW 19.27.031 adopts the model codes — the International Building Code, the International Residential Code and others — by reference, and RCW 19.27.060 gives each city and county the authority to amend them within its own jurisdiction. The same chapter reserves several matters to local government outright: land use and zoning, building setbacks, site development, snow loads, wind loads and local fire zones.

The practical consequence is that the same remodel can need a permit in one city and not in the next. Building and plumbing permits are issued by the city or county where the project is located, and the state’s advice is to contact that building department for the answer. Electrical permits are issued by L&I in much of the state, though some cities and Tacoma Power run their own. Alterations to manufactured and mobile homes, and conveyances such as stair-lifts, carry their own permits.

The permit is the contractor’s job. L&I lists “asks you to get the building permit” among the warning signs to watch for, and states that in most instances, when you have hired a contractor, the contractor is required to take out the permits. If you do the work yourself, checking which permits apply to the address is yours.

Inspections are the other half of the same rule, and they shape the schedule. L&I’s instruction is to make sure the contractor requests the required inspections before the work is covered up, because an inspector has to be able to see the work being inspected, and uncovering pipes or wiring that were closed over costs both time and money. Concealed work is where a renovation’s timetable is most often lost.

Whether a specific project at a specific address needs a permit is its own checklist and its own subject, and it is answered by the local jurisdiction rather than by a statewide rule.

What the building’s age can hide

Two Washington requirements change the method of a renovation before any material is chosen.

Asbestos. L&I requires a good faith inspection for asbestos before any construction, renovation, remodeling, maintenance, repair or demolition project, and it states that this holds “regardless of the age of the building,” because asbestos has not been banned and can still be found in new products. The inspection is done by an AHERA-certified building inspector, who samples the materials the project will disturb. Missing it, or failing to share the result with the contractors and workers on the site, carries a fine of $600 a day, and the fine can fall on both the contractor and the building owner. If the work is in your own residence and the residence is not used for commercial purposes, you are exempt from the general survey requirement — but you still have to give any contractor or worker you bring in the information they need.

Materials worth treating as suspect include pipe, boiler and duct insulation; vinyl, asphalt and rubber floor tile and its adhesives; cement sheets and millboard; sprayed soundproofing and decorative coatings such as popcorn ceilings; patching and joint compounds and textured paints; cement roofing, shingles and siding; and the walls and floors around stoves and fireplaces. There is no way to tell by looking. A material has to be sampled and tested, or treated as though it contains asbestos.

Lead paint. The federal government banned the sale of lead-based paint in 1978, so any paid work that disturbs painted surfaces in a pre-1978 home falls under the Environmental Protection Agency’s Renovation, Repair and Painting Rule. That rule requires the firm to be lead-safe certified and its workers trained, and the EPA recommends that owners of a pre-1978 house hire a lead-safe certified contractor. The rule generally does not apply to you working in your own home — but it does apply if you rent all or part of the house, operate a child care in it, or buy and renovate homes to sell.

Both rules have the same shape. They change the method, they are decided by the age of the building or by a test, and they are not homeowner work. If a survey finds asbestos that the project will disturb, the work goes to a certified asbestos contractor. Abatement does not belong in a renovation plan as a do-it-yourself task.

Money: build the structure before you collect the numbers

A renovation budget is a structure, not a number. It has three parts. The first is the priced scope: every item in the work list carrying a figure from a bid. The second is the allowances for the things you have not chosen yet — the tile, the fixtures, the paint — so the total carries a real figure instead of a blank. The third is a contingency, because a wall that is opened is a wall that shows something.

How the money moves is written into the contract, and L&I is specific about the pattern. Pay as work is completed and phases are finished, not on a calendar. Keep a reasonable down payment, withhold a portion until you are satisfied, and get a receipt for every payment. Do not pay in full until the work is done and you are satisfied. For a project over $6,000, L&I suggests asking the contractor to post a performance bond, which insures the owner for the value of the project if something goes wrong.

One document should arrive before work starts. Under RCW 18.27.114, a contractor must give the customer a written Notice to Customer before starting a project to repair, alter or construct four or fewer residential units when the bid or contract price is $1,000 or more. It carries the contractor’s registration number, the amount of the bond, and the registration’s expiration date, and it warns that the bond may not cover a single claim and that your property may be liened.

Liens are the owner’s real exposure. If your contractor does not pay the subcontractors, suppliers or laborers, the people who are owed can file a construction lien against your property even if you have paid the contractor in full, and a lien claimant may file only within 90 days of the cessation of performance or the last delivery of materials. L&I’s protections are worth taking: ask the prime contractor to disclose all potential lien claimants as a condition of payment, make checks payable jointly to the contractor and the supplier or subcontractor, and get a signed lien release from every major contractor and supplier before the final payment. If it does go wrong with a registered contractor, L&I’s Homeowner Recovery Fund can pay an owner-occupant up to $25,000 — but only after a superior court judgment, and only on an application filed within 90 days of the case ending.

Building a budget has mechanics of its own, and comparing quotes beyond the bottom line is a separate skill.

Who does the work, and what has to be in writing

Washington requires a contractor to be registered for work that “adds to or subtracts from real estate,” for providing advice or consulting on a construction project, or for developing residential property or flipping houses. Gutter cleaning, pruning or lawn care, and window washing are the examples the state gives of services that do not require registration. A registered contractor must maintain a surety bond, carry liability insurance, and hold a Washington business license. Since July 2024 a general contractor’s bond is $30,000 and a specialty contractor’s is $15,000, and a contractor whose registration term began before that date moves to the higher bond at renewal; the required liability insurance is $50,000 for damage to your property and $200,000 for public liability.

Registration is not a competency test. Washington does not require contractors to pass a skills or competency test to register, although L&I does test and license electricians and plumbers. Registration tells you a business is bonded, insured and licensed. It does not tell you the work is good. That is what references, a comparable project and a written scope are for.

Check the registration yourself with L&I’s Verify tool: the status and history of the registration, the bond, the liability insurance, workers’ compensation coverage, and any infractions or legal action. Workers’ comp matters to you directly. If the contractor has employees and the account is not active, you could be exposed to liability for a worker injured on your property. Owner-operators and sole proprietors with no employees are not required to have an account.

Then put the agreement in writing. L&I’s minimum contents for a contract are the price including sales tax; the payment terms and the completion date; permit fees if applicable; the specific work to be performed; a list of the materials, major suppliers and subcontractors; and the warranties and the process for change orders. Its rules of thumb are to get three written bids, to compare scope, dates and warranties rather than price alone, and to treat several things as warnings: a price that holds only if you sign today, cash-only payment or the entire cost up front, a bidder who cannot produce a written contract, and one who asks you to pull the permit. Any change to the work, in material or scope, belongs in a signed change order. L&I’s instruction is blunt — avoid verbal contracts.

Verifying a contractor’s registration and credentials is its own checklist, and comparing quotes beyond the bottom line is another.

The order of work, and the stop that saves the schedule

A renovation is a sequence with two kinds of stops. One is the stop a trade imposes on the next: the rough-in before the wall closes, the floor before the cabinets. The other is the inspector’s, and it is the one that costs the most when it is missed, because concealed work has to be seen before it is covered. The planning brief should name the inspections as steps in the schedule, not discover them on the day.

Which jobs must happen before others, and where the trade handoffs and hold points fall, is its own subject. What the whole-project view needs is the habit of planning backward from the inspections, so the sequence does not run into a wall that is already closed.

The brief to write before you call anyone

One page, handed to every bidder, does more for a renovation than any amount of comparison shopping.

The next useful action

Write the objective and the exclusions first, then settle the two questions the building answers: whether any material the project will disturb needs an asbestos inspection, and whether a pre-1978 house makes lead-safe work a requirement. Take both answers to the permit office for the address, and only then collect three written bids against the same brief. Verify each bidder’s registration, compare the scopes rather than the totals, and keep every document — the bids, the contract, the change orders, the inspection records and the lien releases. The paperwork is what protects the project when a surprise arrives, and a renovation always has at least one.