Serving the Greater Seattle Area
Additions & Large Remodels

More Room, Same Home You Love

Add square footage, open up a floor plan, or rebuild down to the studs. One in-house crew handles the framing, the finish, and the seamless blend with your existing home.

5.0 ★★★★★

Get Your Free Estimate

No pressure, no obligation. We'll get back to you within one business day.

Or call (206) 941-6692 · Mon-Fri 7:30am-5:00pm

✓

We'll get back to you soon!

Expect a call or text within one business day.
In a hurry? Call (206) 941-6692.

Two-story home addition seamlessly matched to an existing Pacific Northwest craftsman home
More Room, Same Home

Additions & Large Remodels

Expanding the footprint of a home takes careful planning, expert execution, and a seamless blend with what's already there. We've framed and roofed additions up to 5,000 square feet, restored century-old homes, and rebuilt interiors down to the studs.

The goal is always the same: an addition that looks like it was part of the house from day one. No mismatched rooflines, no seams that give it away, no corners cut where the old meets the new.

  • Home additions and footprint expansions
  • Whole-home and to-the-studs remodels
  • Corrective structural work
  • Additions matched seamlessly to the existing home
Plan Your Addition →
How It Works

From Plans To Finished Space

Plan & Match

We map the addition to your existing structure and pull permit-ready plans, matching rooflines, siding and finishes so the new space blends in.

Build & Blend

Master carpenters frame, roof and finish on site. Clean job site, clear communication, and structural work done right the first time.

Move In

Every detail walked through together before we hand it back. One team accountable for the whole project, start to finish.

Our Work

Built By The Crew

Home remodeled to the studs with structural work and expanded footprint Home spa addition with bar, jacuzzi and lounge area Bright open-concept living and dining room after a full remodel
★★★★★
"Porter Homes framed and roofed my 3,600 sq ft addition. They did amazing! Their pricing is good, especially if you consider their high quality craftsmanship."

Caleb N. · Google review · 3,600 sq ft addition

FAQ

Home Additions in the Greater Seattle Area

Will the addition match the rest of my house?

That's the whole point. We match rooflines, siding and finishes so the new space looks like it was part of the house from day one.

How large of an addition can you build?

We've framed and roofed additions up to 5,000 square feet. From a single room to a full second story, no project is too big or small.

Do I have to move out during construction?

Usually not. We plan the work to minimize disruption to your day-to-day life, keep a clean job site, and communicate the schedule clearly.

Do you handle permits for additions?

Yes, start to finish: plans, paperwork, city and inspections.

How much does a home addition cost?

It depends on size, structure and finishes. We walk the space with you in a free consultation and give you a scope you actually understand before anything is committed.

Start Your Addition

Let's Talk About Your Addition

Whether you're adding a room or rebuilding half the house, we'd love to hear about it. Free consultation, no pressure.

(206) 941-6692Mon-Fri · 7:30am-5:00pm

Get Your Free Consultation

No pressure. No obligation. We'll get back to you fast.

We'll get back to you within one business day.

✓

We'll get back to you soon!

Expect a call or text within one business day.
In a hurry? Call (206) 941-6692.

Service Areas

Serving Greater Seattle & The Eastside

Based in Bellevue, WA, we build for homeowners from Newcastle up to north Edmonds. Free consultations throughout our entire service area.

Bellevue, WA · Mon-Fri 7:30am-5:00pm

Bellevue (HQ) Kirkland Redmond Bothell Woodinville Kenmore Mercer Island Medina Newcastle Issaquah Sammamish Seattle Shoreline Edmonds + Surrounding Areas