The hidden costs of a home remodel

The quote is not the budget

The construction number gets all the attention, and we publish ours against named benchmarks in our cost guides. But the remodels that blow their budgets in Clark County usually get hit by the lines around the construction number. Here are the ones we see catch homeowners, and how a complete estimate handles each before demolition.

Sales tax: the nine percent nobody budgets

Washington taxes the whole remodeling contract. Under the Department of Revenue's custom-construction rules the contractor collects retail sales tax on the total contract price, labor included, at the job-site rate: 8.9 percent inside the City of Vancouver as of October 2026. On a $60,000 kitchen that is $5,340 that no national cost guide mentioned. Our sales tax explainer covers the rule; the budgeting point is simpler: add roughly nine percent to any benchmark you read, because we are required to collect it and reputable competitors are too.

Permit and review fees

Real but modest, and worth itemizing so they stop being mysterious. City of Vancouver fees are valuation-based: under the published 2026 schedule a project valued between $2,001 and $25,000 pays $91.17 plus $18.43 per $1,000 over $2,000, plus a $32 issuance fee and the $6.50 state building fee, with a combined building-and-trades permit at 160 percent of the building-only figure. Unincorporated Clark County and each smaller city have their own schedules, and electrical permits split between the city and state L&I depending on your address; the map of who charges what lives in our permit guide.

What the walls were hiding

Vancouver's biggest housing cohorts were built in the 1970s and 1990s, and the older half of that stock has had fifty years to accumulate surprises: moisture damage around showers, windows and decks; aluminum-era branch wiring; galvanized supply lines at end of life; the occasional unpermitted wall from a previous owner's creative weekend. A good estimate on an older home prices the probable ones up front, carries a contingency for the rest, and tests suspect materials like pre-1980s ceiling texture before disturbing them. Our 1970s home guide goes deep on this.

Code-triggered additions

Permitted work gets inspected, and inspections apply today's code to what you touch: smoke and carbon monoxide alarm placement, egress requirements for bedroom work, GFCI and AFCI protection in kitchens and baths, energy code requirements for the assemblies you open. Each is small; discovering them as change orders is the expensive version. We write them into the scope because the inspector will.

Living through it

The quiet budget line: weeks without a kitchen means more restaurant nights; a one-bathroom house during a bath remodel may mean a short rental or a gym membership; pets and remote workers need a plan for demolition days. None of this appears on any contractor's estimate, including ours, but we tell you the disruption window honestly, which is what lets you price it for your household.

Design, engineering and the contingency

Structural changes need an engineer's stamp; larger projects may carry design fees; both belong in the all-in number. And every remodel budget should hold a contingency, with 10 to 15 percent a common rule of thumb, more for older homes. The contingency is not pessimism; it is the difference between a surprise and a decision you were ready for.

The fix is a complete written scope

Every item above is predictable, which means every item above is priceable. Our estimates itemize the construction cost, the sales tax, the permit fees and the allowances, flag the era-specific risks for your house, and state the schedule, so the number you approve is the whole number. That is the entire trick, and it is why we publish our benchmarks instead of hiding them behind a sales visit.