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Washington Construction Pros

Construction & Remodeling Experts in Washington

Washington Construction Pros plans and builds kitchen and bathroom remodels, roofing, repairs, commercial projects and new homes for Washington homeowners and businesses. The state has two energy-code climate zones: marine Zone 4C west of the Cascades and dry Zone 5B to the east, where cities like Spokane and Yakima design for deeper frost and require ice-barrier underlayment on roofs. Earthquake hazard reaches every region of the state, so structural work gets a close look. Service areas are still being confirmed, so every project starts with your address and a check of local permit rules.

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Newly completed Northwest contemporary home with stained cedar siding, wide eaves and a daylight basement on a sloped lot among Douglas firs.
Illustrative image
Outline of Washington

Washington

Construction Pros

Remodeling, roofing, repair and new-build planning for Washington's marine west side and its dry, snowier east side.

Serving communities across Washington

Service areas

Building in Washington

What shapes a project in Washington

Codes, climate and permit rules differ across Washington. These are the local factors we plan around before any work is scheduled.

  1. One state building code, amended locally

    Washington's state building code applies in every city and county and is built on the International Building, Residential, Mechanical and Fire Codes plus the Uniform Plumbing Code. The 2021 editions with Washington amendments took effect March 15, 2024. Cities and counties may amend the code for their area but may not lower its minimum performance standards. The State Building Code Council's revised schedule lists May 3, 2027 as the implementation date for the 2024 editions, so long projects should confirm which edition applies when the permit is submitted.

  2. Two energy-code climate zones

    The Washington State Energy Code assigns every county a climate zone. King, Pierce, Snohomish, Clark, Whatcom and the other western counties are in marine Zone 4C, while Spokane, Yakima, Benton and the other eastern counties are in dry Zone 5B. The code uses the zone to decide which energy requirements apply, so a similar remodel can carry different rules on each side of the Cascades. Seattle has its own energy code, which largely matches the state code.

  3. Earthquake hazard in every region

    The Washington Geological Survey says all regions of the state have some seismic hazard, from moderate in the east to high near the coast. The Cascadia subduction zone last produced a roughly magnitude 9 earthquake in 1700, and more than one magnitude 5.5 or larger deep earthquake is expected each century. The Seattle fault lies beneath West Seattle, Bellevue and Bremerton. When structural work is planned on an older wood-framed house, it is a good time to review foundation anchoring and wall bracing.

  4. Wildfire mapping and a future WUI code

    Under Senate Bill 6120, the Department of Natural Resources is building statewide wildfire hazard and risk maps that rate areas from low to very high. DNR says the maps will support adoption of a wildland-urban interface building code. The State Building Code Council lists that code as reserved in the 2024 cycle until the statewide mapping is finished. If you are building or re-roofing near wildland areas, ask the local building department which fire-related rules already apply to your lot.

  5. Snow load, frost depth and ice barriers vary by city

    Local design criteria differ across the state. Spokane uses a 39 psf ground snow load and a 24-inch frost depth, and requires ice-shield underlayment. Yakima lists a 19 psf ground snow load, a 24-inch frost depth and an ice barrier requirement. Vancouver, on the west side, lists a 12-inch minimum frost depth and no ice-shield requirement.

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Licensing & permits

Verify any contractor in Washington

Official Washington resources for checking a contractor's registration or licence and understanding which permits your project may need. Use them for anyone you are considering, including us.

Contractor licensing

Washington State Department of Labor & Industries (L&I)

Washington requires all construction contractors to register with L&I. To register, a contractor must get a surety bond or an assignment of savings and carry general liability insurance. L&I says employees doing electrical work on a home must be licensed electricians, and only licensed plumbing contractors can bid on plumbing projects and send certified plumbers to jobs. Before hiring, L&I advises using its Verify a Contractor, Tradesperson or Business tool to confirm an active license, bond and insurance, and to check safety violations and past lawsuits.

Check a contractor’s status (opens the official Washington site in a new tab)

Building permits

Permits in Washington

Counties and cities enforce Washington's state building code. A county or city without its own building department must contract with another jurisdiction or an approved inspection agency. Each county and city can amend the code locally, so permit triggers, exemptions and review steps differ from place to place. Electrical permits come from L&I unless the city runs its own electrical program or the site is in Tacoma Power's service area. The permits your project needs, and the office that issues them, are confirmed during planning.

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Our services

Construction & Remodeling Services in Washington

Kitchens, bathrooms, exteriors, repairs and new construction, planned around Washington codes and permit offices.
View all services
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    Kitchen Remodeling

    Kitchen remodels that update the layout, cabinets, counters, lighting and finishes, planned around how you cook and use the room.

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    Bathroom Remodeling

    Bathroom remodels built on sound waterproofing and ventilation, with fixtures and finishes that fit who uses the room.

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    Repairs & Maintenance

    Planned repair visits for the small and mid-size problems that build up in a home or building, from sticking doors to rotted trim and loose railings.

Inspiration

Design inspiration for Washington projects

Styles, materials and layouts suited to Washington homes and businesses, to help you picture your own project.

See more ideas
Newly completed Northwest contemporary home with stained cedar siding, wide eaves and a daylight basement on a sloped lot among Douglas firs.
Design inspiration
Remodeled kitchen in a 1920s Spokane brick Craftsman with navy lower cabinets, white oak shelves and a window onto ponderosa pines in bright sun.
Design inspiration
Finished bathroom with vertical-grain fir vanity, green-grey zellige-style tile shower and a window looking into wet cedar and fern greenery.
Design inspiration
Carpenters framing a second-story addition over a 1970s Vancouver, Washington ranch house, with plywood sheathing and steel hold-downs visible.
Design inspiration
Roofers tied off with harnesses installing dark charcoal architectural shingles on a Tacoma Craftsman bungalow, fresh ice-and-water membrane at the eaves.
Design inspiration

Images are illustrative and created for this website. They are not photographs of completed customer projects.

How it works

Our Simple 4-Step Process

A clear path from first conversation to finished project.
  1. 1

    Consult

    Tell us about your project and goals. We review the location, scope and any constraints.

  2. 2

    Plan

    We define the scope in writing, confirm selections and identify permits the work may need.

  3. 3

    Build

    Work proceeds against the agreed plan, with updates when decisions or changes come up.

  4. 4

    Enjoy

    We walk through the finished work with you and hand over care and warranty information.

Questions

Washington Project FAQs

Answers about building and remodeling in Washington. Still have a question? Contact us.
Do I need a building permit for a remodel in Washington?

It depends on the city or county, because each one enforces the state building code and can add local amendments. Some small work is exempt. Seattle, for example, lists installing kitchen cabinets as exempt, but work on load-bearing supports, changes to the building envelope and work that reduces egress, light, ventilation or fire resistance need a permit. Bellingham requires a permit for any project not on its Work Exempt from Permits handout. Permit needs for your address are confirmed during planning.

How do I check a contractor's registration in Washington?

Use L&I's Verify a Contractor, Tradesperson or Business tool. You can search by name, contractor or tradesperson license, workers' comp account or UBI number. L&I says a Verify check shows whether the contractor's registration is current and a minimum bond and liability insurance are in place. L&I also advises checking safety violations and past lawsuits, getting references and getting a written contract.

Who can do electrical and plumbing work on my house?

L&I says any employees doing electrical work on your home must be licensed electricians, and a licensed electrical contractor will make sure the work is done to code, permitted and inspected. Only licensed plumbing contractors can bid on plumbing projects and send certified plumbers to jobs. The electrical permit must be bought by the electrical contractor or by the owner who will do the work. It comes from L&I, from the city if it runs its own program, or from Tacoma Power in its service area.

Which energy code rules apply on my side of the state?

The state energy code places western counties such as King, Pierce, Clark and Whatcom in marine Zone 4C, and eastern counties such as Spokane, Yakima and Benton in dry Zone 5B. The code uses the zone to decide which energy requirements apply to a project. Inside Seattle, the city enforces the Seattle Energy Code, which largely matches the state code.

Can I build an ADU or a duplex on my lot?

It depends on your city's zoning. State law requires many Washington cities to allow middle housing, such as duplexes through sixplexes, townhouses and cottage housing, wherever detached houses are allowed. The 2023 legislature also set parameters for how ADUs are regulated. Check your city's current zoning before design starts.

What should I have ready before a planning conversation?

Bring the project address, a short description of the work, photos of the existing space and any plans or surveys you have. If you live in an HOA, bring its architectural rules, because HOA approval is separate from a city permit. Mention early if the property is in a historic district or on a steep slope, since cities like Seattle add review steps for both.

Sources (14)

Local resources

Planning guides for Washington

All resources

Ready to Start Your Washington Project?

Tell us what you are planning and where. We'll confirm availability for your address and follow up to talk through scope and next steps.

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