General Contractor in Seattle, WA

Professional Home Remodeling Services in Seattle

Seattle has some of the oldest housing stock on the West Coast still in everyday family use. A large share of the city’s single-family homes were built between 1900 and 1940, and another wave went up in the decade after the Second World War. They were well framed with old-growth lumber, and they are structurally sound — but they were wired, plumbed, insulated and laid out for a completely different way of living.

That’s the work: keeping what makes these houses worth owning while replacing the systems and the floor plan underneath.

Craftsman bungalows and the Seattle Box

Across Ballard, Wallingford, Fremont, Beacon Hill and the Rainier Valley, the default house is a 1905–1930 Craftsman bungalow or a four-square “Seattle Box.” Typical conditions: original knob-and-tube on upper floors, a 60- or 100-amp panel, galvanised supply lines at the end of their service life, an unlined brick chimney, minimal wall insulation and a basement with six-and-a-half feet of headroom. The remodels people want — open the kitchen to the dining room, put a bathroom upstairs, make the basement livable — all run straight into those conditions. Lowering a basement slab, for instance, is a foundation job with underpinning, not a flooring job.

Post-war and mid-century

North of 85th, in parts of West Seattle and around Lake City, the stock shifts to late-1940s through 1960s ramblers and split-entries on more generous lots. Simpler load paths, accessible crawl spaces, easier additions — but aluminum wiring in a narrow mid-1960s band, asbestos-containing vinyl and ceiling texture, and single-pane aluminum windows.

Townhomes and infill

The post-2000 townhome wave brought a different set of problems: envelope and water-management defects, undersized mechanical systems, and finishes that wore out inside fifteen years. Remodeling these is less about structure and more about correcting how the building sheds water and moves air.

What makes Seattle permitting its own discipline

SDCI review is the most involved in the region, and several city-specific rules routinely change project scope: environmentally critical area review on the many steep and slide-prone slopes; the tree protection ordinance, which can constrain excavation and footprint; side-sewer condition, which the city may require you to address; oil tank decommissioning on older properties; and unreinforced masonry chimneys, which are a genuine seismic issue on pre-1940 houses. Seattle also allows up to two accessory dwelling units on most single-family lots — an attached ADU and a detached DADU — which has made backyard cottages one of the most common projects we quote. We scope all of this before contract, because every one of them is cheaper to plan for than to discover.

Remodeling in Seattle: What the Area Demands

Seattle is built on a narrow, hilly strip between Puget Sound and Lake Washington, cut in half by the Ship Canal. Almost every practical constraint on remodeling here comes back to that terrain and to how early the city was platted.

Geography and how it affects a build

The hills mean steep lots, daylight basements, tall retaining walls and long stair runs — and a real amount of land classified as environmentally critical for landslide or steep-slope risk. On those parcels, excavation, foundation work and additions require geotechnical input and extended review. The soils are glacial: dense till in places, loose sand and clay lenses in others, which is exactly the combination that makes underpinning and drainage design site-specific rather than standard. And because the original plats were drawn tight, many lots are narrow with minimal side setbacks — which limits bump-outs and often pushes additions upward or into the basement instead.

Neighborhood character

Ballard and Fremont are dense, walkable and design-forward, with strong feeling about street-facing elevations and a historic commercial core along Ballard Avenue. Wallingford and Green Lake are bungalow-heavy and family-driven; the standard project is a rear addition or a basement conversion. Queen Anne and Magnolia have larger, older homes on steeper ground, where view protection and slope both drive scope. Capitol Hill mixes grand older houses with dense multi-family. West Seattle feels semi-detached from the city and has both 1920s stock and post-war ramblers. Columbia City and the Rainier Valley have some of the city’s most varied housing and a designated historic district around the commercial strip.

Construction considerations specific to Seattle

Staging is a genuine cost factor: narrow streets, restricted parking zones and tight lots mean material deliveries have to be sequenced rather than dumped. Street-use permits are often required for dumpsters and equipment. Rain drives scheduling — we plan envelope-open work around the drier months where the project allows. Historic district and landmark review applies in specific areas. And on any pre-1940 house we look at the chimney, the sewer line and the electrical service early, because those three items reshape more Seattle budgets than anything cosmetic.

Nearby areas we also serve

• Algona, WA
• Auburn, WA
• Bellevue, WA
• Black Diamond, WA
• Bothell, WA
• Burien, WA
• All of King County