Basement Drywall & Finishing in Thurston County & the South Sound
Solis Interiors provides basement drywall and finishing in Thurston County and the South Sound. Finishing a basement expands your living space, but below-grade walls require specialized moisture-resistant gypsum, thermal isolation, and tight framing around mechanicals. Solis Interiors hangs, tapes, and finishes basement drywall assemblies across Lacey, Olympia, and Tumwater.
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Finish basement walls around utilities and room use
A basement can have utility access points, a history of water, and walls that need a finish suited to the planned room. Covering those details with board too early can put access or the finish plan out of step with the space.
Solis installs or repairs basement drywall around the existing construction, utility access, moisture history, and intended finish. With the room layout carried into board and finishing work, the completed walls can fit how the basement will be used.
- Drywall installed or repaired for the planned room.
- Utility access retained in the finished layout.
Here’s how we get it handled
Text us photos or call
A close-up, a wider view and your city give us a useful starting point. You can also call and talk through the work.
Agree the scope and schedule
We review the work with you, arrange a site visit where needed and put the agreed scope and finish in your estimate.
Get the space finished
Solis completes the agreed work and reviews the finish with you. Include interior painting in the scope for a complete drywall-and-paint handoff.
Have a project in mind? Send us a photo.
Tell us what needs fixing or finishing. We’ll take it from there.
Basements here are a pre-1950 sloped-lot typology, not the regional norm
In the Pacific Census division only 13% of single-family homes have a basement, against roughly 30% nationally, and new construction has moved further away: 2024 completions ran 18% full or partial basement against 68% slab and 14% crawlspace. Locally, basements cluster in early-1900s neighborhoods on sloped lots. Tacoma's College Park Historic District has 535 contributing homes averaging 1924, and where a block had no alley the garages were dug into the front of the lot into the basement. On Gig Harbor's east-side bluffs the same topography supports daylight basements, though the city's critical-areas rules require geotechnical review of seasonal groundwater before work on those slopes.
On the Chehalis floodplain the regulated path removes a basement rather than finishing one
In Centralia and Chehalis the constraint runs the other way. All eight recorded repetitive-loss areas in Centralia, 762 buildings, and all eight in Chehalis, 132 buildings, are recorded with elevated or crawlspace foundations and no basements, and post-FIRM substantial-improvement standards call for elevation in place with any existing subgrade basement filled in. A finished basement in those floodplain neighborhoods is unusual by regulation rather than by preference, so approved plans and the local authority determine the requirement and we scope the listed drywall work and coordinate the relevant handoff.
Common questions
What drywall materials are required for Pacific Northwest basements?
Below-grade basements in Western Washington require ASTM C1396 moisture- and mold-resistant gypsum board (Purpleboard or Greenboard) with a mandatory 1/2-inch clearance above concrete floors. This prevents capillary moisture wicking from the slab while mold-inhibiting cores protect against ambient humidity.
How do we frame and drywall soffits around ductwork and beams?
Basements feature low-hanging HVAC supply ducts, steel support beams, and plumbing stacks. Solis Interiors builds tight, laser-plumb drywall soffits and bulkheads that maximize ceiling headroom while providing clean, accessible panels for shut-off valves and cleanouts.
How is project sequencing handled after rough-in inspections?
Drywall hanging should start promptly after electrical, plumbing, and mechanical rough-ins pass municipal inspection. We coordinate directly with your inspection schedule to board, tape, and finish your lower level efficiently to Level 4 or Level 5, ready for trim and paint.
Related services
Cities we serve
Serving Lacey, Olympia, Tumwater, Yelm, and Tenino in Thurston County.
Also serving DuPont, Tacoma, Lakewood, Puyallup, Gig Harbor, Chehalis, and Centralia in Pierce County and Lewis County.
Choose your city
- Finishing a Lacey basement with drywall
- Basement drywall for Olympia homes, hung and finished
- Finish your Tumwater basement with drywall
- Basement rooms finished with drywall in Yelm
- Finishing a Tenino basement with drywall
- Basement walls and ceilings finished in DuPont
- Finishing a Tacoma basement with drywall
- Basement drywall for Lakewood homes
- Finishing a Puyallup basement with drywall
- Basement drywall for Gig Harbor living space
- Basement walls and ceilings finished in Chehalis
- Basement drywall for Centralia homes
Get a project estimate
Choose the work you need and tell us how to reach you.
Text us photos for a quick estimate!Source: U.S. Energy Information Administration, 2020 Residential Energy Consumption Survey, Table HC2.8
Send us your basement layout
A sketch or plan with the room sizes, plus photos of the framing, lets us scope the board and finish.