Custom Home Additions & Basement Remodels in Seattle & the Puget Sound Area

Add the space you need and transform underused areas into functional, beautiful living spaces – without leaving the home you love.

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Transparent pricing within days

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Owner-led projects from start to finish

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Trusted by Seattle & Eastside homeowners for nearly 20 years

A woman in a yellow shirt works on a laptop at a small table while a young child reaches toward the computer, sitting together in a cozy living room.

Is Your Home Running Out of Space?

Many Seattle and Puget Sound homeowners feel like they’ve outgrown their homes – but moving is not always the right solution.

  • Your home feels cramped.
  • You need more space for family, work, or guests.
  • Your basement sits unfinished or underused.
  • Rooms feel disconnected or lack functionality.
  • Working from home is difficult without a dedicated space.

The problem is not your location – it is that your home no longer supports your lifestyle.

Add Space and Value Without Leaving the Home You Love

Woodmark Homes designs and builds custom home additions and basement remodels throughout Seattle, Bellevue, Kirkland, Redmond, and the greater Puget Sound area.

Whether you are expanding your home’s footprint or transforming an existing basement into livable space, we guide the entire process from planning to construction.

We focus on creating seamless additions and functional layouts that feel like they were always part of your home.

We Bring:

  • Early budget clarity
  • Collaborative architect and design partnerships
  • Transparent scheduling
  • Owner involvement throughout the project
  • Thoughtful integration with your existing home
Get A Quote
Modern basement living room with grey sofas, yellow accent pillows, a wooden coffee table with decor, a patterned rug, poufs, and a staircase with glass railing in the background. Large windows let in natural light.

What Is Included in home addition and basement remodels?

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Second-story or ground-level home additions

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Primary suite additions

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Expanded living areas or open-concept layouts

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Basement finishing and full basement remodels

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Home offices and work-from-home spaces

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Guest suites or multi-generational living areas

Bathroom additions or upgrades

Structural modifications and layout reconfiguration

Custom cabinetry and storage solutions

Egress windows and code-compliant upgrades

Most Contractors Make You Wait Weeks for Pricing. We Don’t.

  • We respond within 48 hours
  • Site visits usually happen within 5 business days
  • You receive a preliminary budget within days – not months

We believe early transparency builds trust and eliminates wasted time.

This is one of the reasons we maintain a 97% client satisfaction rate and earn the majority of our work through referrals.

Get A Quote

Craftsmanship You Can See

Home additions and basement remodels require thoughtful planning and precise execution to ensure your new space feels like a natural extension of your home.

From expanding your footprint to transforming underused basements into livable space, our work is designed to improve both functionality and long-term value.

Modern bathroom with a wooden vanity, white countertop, built-in shelves, and drawers. There is a large glass-enclosed shower with gray tile walls and floor, and ceiling-mounted lights overhead.
A modern shower with dark gray tiles, a square overhead rain shower, a handheld shower wand, and a built-in shelf; a toilet is visible through an open wooden door.
A modern rooftop patio with a white floor, light gray paneled walls, glass railing, black wall lights, and a white-framed door, surrounded by green trees in the background.
A rooftop terrace with a smooth, light gray floor and black metal railings, surrounded by tall green trees under a partly cloudy sky.
A modern two-story house with a flat roof, large black-framed windows, and a mix of white and wood-paneled exterior. There is a garage on the left and shrubs in front of the property.
A modern hallway with light wood flooring, large windows, and a skylight. The area features a sleek railing with horizontal cables and black posts, and the space is bright with natural sunlight.
A modern home interior featuring a staircase with white railings and wooden steps, a TV on a stand, and an open layout with pendant lights and visible dining area in the background.
Modern laundry room with a front-loading washer and dryer, white cabinets, a sink under a window, and light wood flooring. The space is bright with natural light from the window.
Modern bathroom with double-sink white vanity, large mirror, brass fixtures, glass-enclosed shower, soaking tub with subway tile surround, gray tiled floor, and light blue walls.
Bright, modern kitchen with white cabinets, marble countertops, stainless steel appliances, and large windows letting in natural light; a wooden floor and potted plant add warmth to the airy space.
A modern hallway with beige carpet, white walls, and built-in white and wood storage units. Framed pictures hang on the left wall, and a black bench sits near a closed white door at the end of the hall.

WHY HOMEOWNERS TRUST WOODMARK HOMES

Clarity. Confidence. Craftsmanship.

Nearly 20 years serving Seattle and the greater Puget Sound

Hundreds of successful renovations and additions completed

Owner-led projects - work directly with Jeff and Mark

Transparent timelines and realistic budgeting

Rough-order budget guidance within days, not months

Trusted architect and design partnerships

Craftsmanship built to last for decades

Spaces designed for real life — family, work, entertaining

★★★★★

"Outstanding to Work With!"

We are an Architecture firm who has worked with Woodmark Homes on several home remodels of various ...
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Board & Vellum
★★★★★

"Outstanding to Work With!"

We are an Architecture firm who has worked with Woodmark Homes on several home remodels of various sizes (from smaller kitchen projects to whole house remodels). Their team is outstanding to work with. They provide a very rare combination of excellent customer service, accurate and clear estimating, and outstanding problem solving. They're unflappable and provide a calm and clear path forward for clients during their remodel. We can't recommend them highly enough.
Board & Vellum
★★★★★

"Would Definitely Hire Woodmark Again!"

We completely gutted an original bathroom in a house built in the 1920's. The bathroom was ...
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Sydney Wood
★★★★★

"Would Definitely Hire Woodmark Again!"

We completely gutted an original bathroom in a house built in the 1920's. The bathroom was remodeled with a new tile floor, drywall ceiling and walls, new plumbing fixtures (including pedestal sink, tub, and toilet), tiled walls around the shower, a new bathroom exhaust fan, and the existing original window was replaced with an energy-efficient double-pane window. In the kitchen, the existing laminate countertop was replaced with a solid surface quartz countertop, a new under-mount sink was plumbed, and a backsplash was added. The existing plaster kitchen ceiling was removed, and a new drywall ceiling was added with recessed lighting and a pendant fixture over the sink. Jeff was easy-going and fun to work with. He gave good design advice when asked, but left most of the decisions up to us. The project started as a bathroom remodel, but Jeff & Mark did a great job, so we added a few small projects in the Kitchen. Everything turned out great, and we would definitely hire Woodmark Homes again.
Sydney Wood
★★★★★

"Prompt. Clean. Beautiful Work!"

I called Jeff after receiving a referral and he showed up the same day to give us ...
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Kirsten R.
★★★★★

"Prompt. Clean. Beautiful Work!"

I called Jeff after receiving a referral and he showed up the same day to give us a bid on several tile projects we had going in an extensive remodel of our home. Our tile contractor, Tim, was prompt, clean, and did beautiful work. They were also very flexible in working with our tight construction schedule, often having to work around other contractors on the project. Additionally, Jeff showed up each day to check the work and make sure things were moving along as they should. I would not hesitate to use Jeff again or to recommend Woodmark Homes to friends, family, or clients.  
Kirsten R.
★★★★★

"On Time, On Budget & Excellent Quality!"

Jeff & Mark did a complete remodel of our house down to the studs. ...
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Jason T.
★★★★★

"On Time, On Budget & Excellent Quality!"

Jeff & Mark did a complete remodel of our house down to the studs. Jeff provided us with a detailed outline of the process and walked us through every step of the multi-month project. Mark was amazing at helping troubleshoot any issues that came up, along with giving advice when we had to make decisions. In the end, the project was on time, on budget, and the quality was excellent. After moving in, a few minor things came up, and Mark and Jeff came out right away and made sure they were fixed.
Jason T.
★★★★★

"Excellent Job - Clear Estimate - On Time"

Woodmark Homes did a basement and kitchen remodel in my home. The estimate ...
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Claudette M. Hunt
★★★★★

"Excellent Job - Clear Estimate - On Time"

Woodmark Homes did a basement and kitchen remodel in my home. The estimate was clear and reasonable, and my questions were promptly answered. The work went smoothly and was done on time. The workers are pros. They did an excellent job with painting, plumbing, and electrical. I intend to hire them again and will not hesitate to recommend Woodmark Homes to friends and family.
Claudette M. Hunt
★★★★☆

"Efficient! Best Bid - Would Hire Them Again"

Woodmark Homes repaired water damage in my bathroom and tiled the tub and ...
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Marilyn
★★★★☆

"Efficient! Best Bid - Would Hire Them Again"

Woodmark Homes repaired water damage in my bathroom and tiled the tub and floors. They did a very good job. Everyone who came worked efficiently, and the work was done in a reasonable amount of time. They had the best bid also. I would hire them again.
Marilyn

Your Dream Home in 3 Steps

Share Your Ideas For Your Home

Request a quote, or contact us, and we’ll talk about how you want to update your home, pricing, and a plan of action.

Start the Design Process

We’ll match you up with a vetted local architect or designer to design your addition or renovation.

See Your Vision Turned Into Reality

We build your dream space so you can enjoy it for years to come.

Roadmap to Working with Us

1

Consultation

2

Pre-Construction & Design

3

Selections & Permitting

4

Construction Begins

5

Project Oversight/Management

6

Project Completion!

Celebrate and enjoy your new space!

Work With Us To Get the Home You’ve Always Wanted

Get A Quote

Serving Seattle, Bellevue, Kirkland, Redmond, and the Greater Puget Sound Area

For nearly 20 years, Woodmark Homes has completed remodeling and addition projects across the Seattle metro and Eastside communities.

We understand local permitting requirements, neighborhood architectural styles, and construction expectations unique to the Pacific Northwest.

Imagine Having the Space Your Home Has Been Missing

More room to live.
Space to work comfortably.
A home that supports your family’s needs.
A layout that finally makes sense.
Adding value to your property.

Woodmark Homes helps Seattle and Puget Sound homeowners expand and transform their homes with confidence.

Get A Quote

Frequently Asked Questions

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