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Seattle, WA

Home Additions in Seattle

Room additions, second stories, sunrooms, and garage conversions. Novum lines up a licensed general contractor and stays on the project from plans to final inspection. Serving Seattle and surrounding Washington communities — same vetted pros, same upfront pricing, same Novum Guarantee.

Craftsman homes on hillsides with wet basements, moss-covered roofs, and clogged gutters. Nine months of rain make drainage, roof cleaning, gutter guards, pressure washing, and mold work routine; heat-pump installs are booming. We cover Ballard, Capitol Hill, West Seattle, Wallingford, and the rest of the Puget Sound area — see every Novum service in Seattle.

Vetted, licensed pros

Every pro Novum sends is licensed, insured, and vetted — and Novum stays accountable for the job.

Flat upfront quote

You approve the price before we start. No hourly rates, no surprise charges.

Fast scheduling

Same-day and next-day appointments available throughout Seattle.

Home Additions services in Seattle

Novum handles all of these in Seattle — book online or call and we'll give you an upfront quote.

Room addition
Second-story addition
Sunroom
Garage conversion
In-law suite / ADU
Bump-out addition

Why Seattle homeowners choose Novum

Unlike platforms that send your request to whoever bids lowest, Novum assigns one vetted pro and manages the job. Every Seattle home additions pro Novum sends is licensed, insured, and vetted — and Novum manages the job from request to finish. That means consistent quality, a single point of contact, and the Novum Guarantee on every job.

No contractors bidding on your job — Novum assigns one vetted pro
Flat written quote before any work starts
One company responsible from booking to completion
Novum stays your point of contact if something needs fixing
Licensed home additions techs serving all of Seattle
Book online or call — straightforward scheduling

Home Additions FAQs for Seattle

Who builds the addition?

A vetted, licensed, insured general contractor from Novum's partner network, coordinated by Novum. One request, one assigned pro, one point of contact for the whole project.

Are plans and permits handled?

Yes. Your assigned pro coordinates drawings, permits, and inspections. Novum confirms each stage is in your quote.

How is an addition priced?

After a consultation you get a detailed upfront quote covering design, labor, materials, and timeline before work starts.

How is Novum different from Angi for additions?

Angi gives you a list of builders to interview and gather bids from. Novum assigns one pro and handles scheduling and follow-up throughout.

What is the Novum Guarantee for additions?

If a defect appears after completion, Novum makes it right.

Do you serve all neighborhoods in Seattle?

Yes — Novum covers all of the Puget Sound area, including Ballard, Capitol Hill, West Seattle, Wallingford, Columbia City, Shoreline, and ZIP codes such as 98107, 98102, 98116, 98103.

How do I get a quote?

Book online at NovumHS.com or call 435-534-6764. A Seattle dispatcher will confirm the appointment and provide your upfront flat quote before any work begins.

Ready to book home additions in Seattle?

Get an upfront flat quote. Novum lines up the pro and handles the rest.

Book onlineCall 435-534-6764