DA DA Interior SolutionsGeneral Contractor · South Sound, WA
Pierce · King · Thurston Counties

LOST SPACE made livable

Turn the square footage you already have into space you actually use, finished basements and garage conversions for suites, offices, gyms, and rentals. Fully managed by DA Interior Solutions: design guidance, permits, trades, and a walkthrough we never rush.

12 yrs
Experience
200+
Projects
5.0
Rating
Free
In-home estimates
Walk-in shower, Frameless glass · hex mosaic field · linear drain by DA Interior Solutions
Walk-in shower
Frameless glass · hex mosaic field · linear drain
WA Reg · Bonded · Insured
DAINTIS775JL
Capabilities

What we handle

Every remodel is scoped to your home, your written estimate lists exactly what's included. A sample of what we cover:

Basement finishing: bedrooms, family rooms, home theaters, and full baths
Garage conversions to living space, offices, gyms, or ADUs
Framing, insulation, drywall, flooring, and finish to a warm, code-compliant space
Egress windows and proper exits for legal, safe bedrooms
Moisture control, vapor barriers, and waterproofing for below-grade spaces
Electrical, heating, and plumbing extended for full-function rooms and baths
Sound and thermal insulation for year-round comfort
Permitting and inspection handled end to end

Most basement or garage conversions run four to eight weeks depending on plumbing scope, egress work, and finish level.

Selected Work

Recent conversion work

View all projects →
Q & A

Questions, answered straight

Can I add a bedroom in my basement legally?

Yes, with proper egress. A legal basement bedroom needs a compliant egress window or door for safe exit, plus the right ceiling height and ventilation. We handle the egress work and the permit so the room counts as legal living space, not just finished square footage.

Will my basement stay dry after it is finished?

That is the first thing we solve. Before any framing, we address moisture: grading, drainage, vapor barriers, and waterproofing as needed. Finishing over a wet basement is the most common mistake we get called to fix, so we do it right from the start.

Can a garage conversion be an ADU I rent out?

In many cases, yes. A garage conversion can become a legal ADU with the right permits, egress, and utility connections, which we manage. We confirm what your lot and jurisdiction allow before you commit.

By City

Basement and Garage Conversion across 17 South Sound cities

How a Project Runs

One point of contact, start to sign-off

01Site Visit

Walk the space, take the measurements

We come to your home, measure everything, and listen more than we talk. You get a detailed written estimate, line by line, free, no pressure.

02Selections & Sequencing

Materials, permits, schedule

Finishes chosen with our guidance, permits pulled by us, trades booked in order. Nothing gets demoed until everything that follows is sequenced.

03Build & Walkthrough

Dust barriers up, schedule kept

Our crew builds, inspections pass, and we end the way it should: walking the finished space together, punch list in hand. It isn't done until you love it.

Field Reports

What clients say when the dust settles

★★★★★

Remodeled my kitchen and got it done a few days faster than expected, and it looks so nice now I can't wait to host people over.

Chris Estrada · Google Review
★★★★★

Did an excellent job doing a complete renovation/remodel of our bathroom and repairing/replacing a portion of siding on house. Really listened to what I wanted for my dream bathroom and delivered A+.

Pat Shandrow · Google Review

Read more reviews →See them on Google →

Ready to start your basement and garage conversion?

Free in-home site visit and a clear written estimate, line by line.