Sammamish was named the Best Suburb to Raise a Family in 2015. Sammamish, a Seattle suburb with a population of 64,674, is one of Washington’s greatest places to live. Inhabitants of Sammamish enjoy a sparse suburban feel with the majority of residents owning their own homes. The towering green rolling hills of Sammamish are a fantastic respite from the huge city life of Seattle, with gorgeous lakes and the Snoqualmie River running nearby. Residents have more than enough incentive to expand their homes and really get comfy in this quaint small town, which has been proven time and time again as a picture-perfect setting to raise a family.

If you’re looking to expand your home and have a boost in lifestyle, this list of the 10 best home addition contractors in Sammamish, Washington might be able to help you transform your plans into a reality.


Better Builders

4800 California Ave. SW, Seattle, WA 98116

Better Builders is one of the leading Seattle residential builders specializing in high-end custom homes and remodels. Through their broad network of experienced and trusted building architects, cultivated for more than 20 years, they are known for delivering high-quality projects time and time again. Better Builders believes in knowing clients’ ambitions and goals and turning those dreams into an extraordinary house or space using high-quality materials and great craftsmanship.

Developing deep regard for residential home building since he was 15, the firm’s principal Walter Babb had amassed thousands of remodeling projects before establishing Better Builders in 2008. After its Seattle inception, the firm has expanded service into Kirkland, Bellevue, Lake Forest Park, Des Moines, Federal Way, Renton, Burien, Normandy Park, Mercer Island, Shoreline, Sammamish, Issaquah, Redmond, and Kent. The firm mostly manages new construction and residential remodeling projects, earning accreditations such as multiple Rex Awards over the years.


Bender Custom Construction

1800 112th Ave. NE Suite 210W, Bellevue, WA 98004

Operating with a highly client-centric approach since 1998, Bender Custom Construction has completed over 360 high-end houses in the Pacific Northwest while focusing on developing long-term relationships with all parties: tradespeople, architects, and most importantly, its clients. The firm is run by a father and son duo, Don and Steve Bender, achieving a 36-year record as renowned custom home builders and remodelers. Each project it accomplishes is the product of professional building experience, cutting-edge technology, and the assurance that its home will be a sound financial investment. 

Its craftsmanship in creating exemplary modern and contemporary homes has made it the recipient of the MAME Best Custom Home Award. The company has also been lauded by various press over the years such as Luxe, Green Building and Design, and Seattle Homes. All of its projects are truly unique, personal, one-of-a-kind homes, and it thrives in the complex challenge of building them smoothly within schedule and budget. It has eight to ten projects ongoing at any given time, ranging in size from 5,000 to 25,000 square feet and in a variety of architectural styles.


McAdams Remodeling & Design

13003 NE 85th St., Kirkland, WA 98033

McAdams Renovation & Design is a full-service residential remodeling contractor situated in Kirkland with over 40 years of expertise in the Seattle area. It specializes in design-build projects, which include everything from whole-house remodels and additions to smaller tasks. This company provides a 10-year limited guarantee as proof of its commitment to long-term relationships with its clientele, and it provides a unique service that offers free inspections to guarantee that any faults are handled right away. McAdams has multiple certifications including BBB, MBA, and NAHB, and it was lauded for receiving the 2014 Rex Award.

This garage and game room addition is part of a whole home remodeling project in Woodinville. McAdams Renovation & Design added 500 square feet to the existing home. Part of this added space was an additional bay in the garage to serve as a workspace. The space above was made into a game room complete with ping-pong and pool tables. A whiskey room and a secret room are also included to cater to each of the couple’s interests.


Tenhulzen Residential

14701 148th Ave. NE, Woodinville, WA 98072

Having a total of over 3,000 projects since 2012, Tenhulzen Residential is esteemed for its impeccable services in designing, building, and remodeling additions for kitchens, baths, desks, specialty rooms, and whole-house integrations. It prides itself on its professional team of architects and contractors that each embody the company’s core values: professionalism, integrity, creativity, and trust. This firm has earned multiple notable awards such as the 2014 Chrysalis Award for a bathroom project over $60,000, the 2017 SAFE Award, and its most recent win, the 2018 Rex Award for Kitchen Excellence. 

When it comes to design details, the team empowers homeowners to be much more hands-on. By participating in the decisions and process, homeowners may ensure that their objectives are met and that their visions are realized at each stage of the project. This way, owners have a lasting sense of pride in the finished product as a result of its involvement.

Featured here is the guest bath that is part of an addition to a Colonial home. Tenhulzen improved the older-style home into a more updated residence. The firm expanded the master suite, relocated the laundry to the upper floor, and added a bedroom and guest bath. To make the addition blend in seamlessly, the firm used classic styling, timeless materials, and architecturally sound elements.


Rainier Custom Homes

306 Wells Ave. SE, Renton, WA 98057

With the goal to achieve nothing less than the most remarkable works, Rainier Custom Homes (RCH) has built meaningful and lasting relationships with all of the clients it worked with by consistently delivering high-quality projects. In 2004, firm principal Jason Jarman established Sunstone Homes before eventually deciding to merge the company with Rainier Custom Homes in 2006. RCH constructed a great number of major additions to residential homes in Washington.

Throughout these projects, clients highly commend RCH for being professional, organized, and attentive down to the last detail. The firm makes it a point to involve clients in the project and keep them informed with timely and open communication. From the initial consultation to the final checklist, it has prided itself on making each project a collaborative and cooperative experience. RCH’s excellent craftsmanship and keen attention to detail have won them two prestigious NKBA Design Awards for the best kitchen and bathroom designs.


Schultz Miller

1015 NE 113th St., Seattle, WA 98125

Schultz Miller is a high-end home builder based in Seattle. It was founded in 1981 with a simple but unique concept: make the process of building a home predictable, positive, and timely. Its work includes new construction ranging from tiny houses to estates, as well as remodels and condominium modifications of all sizes and scopes. The company also does home service work ranging from gutter cleaning to window replacement. Not only is it highly adept at home additions, but its portfolio also includes many remodels that have won the attention of various press like Luxe Interior + Design and Pacific NW who have featured the firm in its media releases over the years. Schutz Miller was also praised for receiving ABC’s Annual Excellence in Construction in Safety award back in 2018. 

In a collaboration with architect Nils Finne, Schultz Miller upgraded this traditional, stucco house without losing its distinctive architectural elements. A two-story addition was incorporated into the home. The livable space includes a study on the ground level and extends the master suite above. Interior details are masterfully crafted using fabricated fir and an intricate cedar ceiling.


Damskov Construction

1940 124th Ave. NE Suite A107, Bellevue, WA 98005

Damskov Construction is an award-winning custom builder and whole-house remodeler in the Pacific Northwest. It is noted for high-quality construction, effective project management, and a collaborative building strategy. Since its establishment in 2012, it has collaborated with homeowners, independent architects, and designers to build architecturally exquisite custom houses and complete house remodels. This has resulted in a greater level of knowledge, talent, and attention to detail in every project. 

NAHB and MBA certified Cameron Damskov, the company’s namesake is an expert that is knowledgeable in every aspect of the custom build process. The firm’s unique and elegant touches in modern and contemporary construction were key in bagging the most recent 2021 MBAKS Remodelling Excellence Award.


Fradkin Fine Construction

811 First Ave. Suite 451, Seattle, WA 98104

Fradkin Fine Construction combines a strong dedication to sustainable construction procedures with an equal commitment to employing the best possible materials and keeping a pleasant, enjoyable working relationship with its clients and design professionals. Every Fradkin Fine Construction project marries the clients’ creativity and imagination, the experience and expertise of architects and designers, and the dedication, talent, and artistry of its accomplished crew members and expert subcontractors.

The company is a member of the US Green Building Council (USGBC), as well as a “Built Green” builder and the Northwest Eco-Building Guild. Several of its works have been published in Dwell Magazine, Pacific Magazine, Luxe Magazine, Better Homes and Gardens, and the Seattle Times, and have won AIA Home of the Month Awards.


Norsk Design-Build

14963 NE 95th St., Redmond, WA 98052

Successfully obtaining multiple home addition permits in Sammamish, Norsk Design-Build has taken a holistic and comprehensive approach to design, planning, and the overall home construction process for more than 30 years. Norsk Design-Build President Karl J. Dropping upholds the ideals and traditions of past generations in the industry. The firm uses an unrivaled Design-Build approach that emphasizes client control throughout the design and construction process. Norsk Design-Build continues to provide an unrivaled client experience that creates a lasting impression on its clients by combining the finest of both technology and people.