WA L&I registration WASHILC744NU · Greater SeattleMon to Sat 7am to 7pm(425) 952-9872
Service · Greater Seattle

ADUs & additions

An addition touches the foundation, the structure and every system in the house. The assessment before pricing is deliberately slow, so permitting and structural work sit inside the number you sign.

Free ADU feasibility visitFree measure, no obligationPrice held 12 months
Current offers
Greater Seattle. Every job starts with a free quote. Your exact price is confirmed in writing before any work begins.
ChimneyChimney clean + inspection, free quoteBefore the rain · photographs of your flue includedRoofingRoof leak repair, free quoteFree roof measure and scope with every replacement quoteWater damage & drainageRoom rebuild, free quoteDrainage, free quoteConcrete & drivewaysConcrete driveway, free quoteRetaining walls, free quote
What's included

ADUs & additions, scoped in full.

Feasibility: setbacks, utilities, access, permit path.
Foundation, framing, roof and envelope.
Plumbing, electrical, HVAC and finishes.
Permitting written into the scope.
Our process

Three steps. One number.

FeasibilityWe check what your lot allows and what it will take.
Signed estimatePermits to keys in one written number.
BuildFoundation to finish, one crew.
What the number covers

Additions touch foundation, structure, and systems, more variables than almost any other project on this site. That's why the assessment before you sign is thorough: structural review, permitting requirements, and site access are all accounted for in the number. Structure and systems are assessed before pricing, so the work the addition needs sits inside the scope you sign.

Free · no visit needed

Send a photo of your house. We model the job in 3D, free.

Upload one or two photos of the roof, chimney, wall or yard. Within one business day you get a 3D model like the ones on this site with the work marked on it, and a price range. If you like it, we come out, measure, and turn the range into one signed number.

Upload photosJPG or PNG · phone photos are fine
Roof · chimney · wall · deck · yard
Phone and ZIP, nothing else. We text you the model.
Get your adus & additions quote

Free measure, written price, held 12 months.

We reply within one business day.

By sending this form you agree we may call you about your request. See our privacy policy and terms.

Video reviews

Homeowners on camera, in their own words.

Real customers, filmed at the job.

Greater Seattle homeowner
Greater Seattle homeowner
Greater Seattle homeowner
Greater Seattle homeowner
Greater Seattle homeowner
Greater Seattle homeowner
Greater Seattle homeowner
Greater Seattle homeowner
Greater Seattle homeowner
Greater Seattle homeowner

All video reviews →

Our process

Measured. Priced. Then built.

The number is the number.

Step 01We measureA free in-home visit. We measure, photograph and scope the job with you: the decking, the flashing, the framing, the parts you cannot see from the ground.
Step 02You get the exact priceSame day, in writing, held for 12 months. Labour, materials, named allowances and contingency already priced in.
Step 03We build itLicensed small local team, one project manager, updates by text. We build to the signed scope.
Before you call
Question 1

Q: Who handles permitting for a home addition? A: Permitting is written into the scope on your estimate, so you can see exactly who is pulling what before you sign.

Question 2

Timelines depend on scope, structural complexity, and permitting. Your signed estimate includes a schedule specific to your job.

Question 3

The assessment before pricing is deliberately thorough on additions, so the structural work the job needs is scoped and priced into the number you sign.

ADUs & additions by city
Spanaway Puyallup Tacoma Federal Way Auburn Kent Renton Seattle Bellevue Redmond Kirkland Bothell Lynnwood Everett Marysville Arlington

Get your exact price today.

Send the address, a few photos and what you are trying to do. You get a walkthrough, then one signed estimate.