Soundproofing & General Contracting
in Capitol Hill, WA
Family-owned, licensed & insured. Serving Capitol Hill and King County, WA since 1983 — with real acoustic isolation, quality drywall, and full interior remodeling. Call (425) 420-5641 for a free in-home estimate.
Capitol Hill Soundproofing — Done Right.
Capitol Hill is lively — clubs, restaurants, buses, sirens, and late-night foot traffic. If your bedroom faces Broadway or Pine, we can cut exterior noise by 60% with proper window and wall treatment. It's what we do every week in this neighborhood.
Real acoustic isolation requires four principles: mass, decoupling, damping, and sealing. Jensen Contracting has been designing soundproofing systems for Seattle-area homes for decades — and we bring that expertise to every project in Capitol Hill.
What We Soundproof
Common Capitol Hill soundproofing projects we handle every month.
Walls, Floors & Ceilings
Critical for shared-wall townhomes, duplexes, ADUs, and stacked apartments. We use mass-loaded vinyl, green glue, resilient channels, and double-stud assemblies to measurably reduce decibel transfer — not just "sound a little quieter."
Home Studios & Media Rooms
If you record music, podcasts, or stream professionally from a Capitol Hill home — or just want a theater room that doesn't wake the house — we build purpose-designed rooms with proper isolation clips, mass, and sealing.
Doors & Windows
Often the weakest link in any soundproofing project. We upgrade doors with solid-core cores, acoustic gaskets, and threshold seals; and add laminated-glass or interior inserts to existing windows for measurable street-noise reduction.
Why Capitol Hill Homeowners Choose Us
Capitol Hill has some of Seattle's most stunning historic homes and many mid-century apartment conversions. We understand both — from century-old plaster restoration to modern ADU soundproofing.
We cover North Capitol Hill, Broadway, Pike/Pine, Stevens, Montlake edge and every neighborhood in between. Zip codes: 98102, 98112, 98122.
- 40+ years serving King County — since 1983
- Licensed & insured in Washington State — WA Lic # JENSEC1877LI
- One point of contact — a project manager who answers directly to you
- Written, itemized bids — no surprise charges
Seattle
Every Service We Offer in Capitol Hill
Soundproofing is where we lead — but we're a full-service general contractor with four more core disciplines.
General Contracting
Residential and commercial projects in Capitol Hill, managed end-to-end by a single licensed GC.
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Drywall & Plaster
Drywall install, Level-5 finish, and plaster repair for Capitol Hill's older housing stock.
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Interior Remodeling
Kitchens, baths, finish carpentry, and custom trim throughout Capitol Hill homes.
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Property Maintenance
Punch-list repairs, rental turnovers, and property upkeep in Capitol Hill and nearby.
Learn moreNot in Capitol Hill? We Cover the Whole Region.
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Ready to Build Something Right?
Call us or request an estimate online. We'll visit your home, scope the work, and send you a clear written quote.