Redmond is distinctively known as the home to some of the big names in technology including Microsoft and Nintendo. It appeals to young professionals not only for its vast employment opportunities but also for its outdoor environment. This small town is also one of the safest cities in the state.

Homeowners who are looking to renovate their homes will find plenty of contractors in Redmond and the surrounding area. In this guide, we provided a list of the best home addition contractors in Redmond and its surrounding areas. The firms on this list are chosen based on their years of service, awards, recognitions, and affiliations.


Sammamish Remodel & Custom Build

2028 E. Lake Sammamish Pkwy. NE, Sammamish, WA 98074

Serving homeowners throughout Sammamish, Redmond, and Greater Seattle Washington, Sammamish Remodel & Custom Build specializes in residential construction including home additions, kitchen and bath renovations, and other types of home improvements. Over the years, the firm has built hundreds of projects together with a talented crew of carpenters, architects, engineers, and subcontractors. Having built strong relationships with clients, most of the firm’s business comes from referrals. With a loyal clientele, Sammamish Remodel has earned a reputation for consistently exceeding customer expectations. 

As a top remodeling firm in Sammamish, the company provides a wide array of services including new construction, renovation, remodeling, design, planning, and permitting. From minor to large home additions, the firm can handle all types of build outs. Additionally, the company has also constructed homes in the Southwest area including Arbor Heights and Normandy. CEO and founder Mike Flaker has managed million-dollar projects throughout his career making him an expert in residential and commercial construction.


Sun Spaces

1407 132nd Ave. NE, Redmond, WA

Specializing in sunrooms and additions, Sun Spaces has completed over 6,000 installations since its inception more than 40 years ago. Serving clients throughout the Greater Eastside of Puget Sound, the company designs, builds, and manufactures different types of spaces including solariums, green rooms, patios, decks, doors, and windows customized to fit the client’s requirements and budget. Offering a broad selection, the firm also develops green designs to reduce energy consumption and help clients save on bills. Using the finest materials and providing excellent service, the company maintains customer satisfaction in every project. 

Under the guidance and leadership of firm principal Aaron J. Sitzmann, the company has earned positive reviews from new and old clients. One of the firm’s projects is the Bright Sitting Room Installation located in Redmond. Sun Spaces was hired by the homeowner to build a functional and comfortable sitting room on the home’s main level. This room addition also features a living room, bathroom, and bedrooms with an access stairway.


Tek-line Construction

736 S. Chicago St., Seattle, WA 98108

Seattle-based Tek-line Construction is a trusted home builder serving the areas of the Eastside and Greater Seattle. Established in 1987, the firm’s humble beginnings started with building spec homes and through the years eventually evolved to constructing luxury home remodels. The company was formed through the partnership of Ted Watson and Ian Edens. With over 60 years of combined experience, the firm is wholly trained to manage complex projects that require special skills and expertise. The company is recognized by clients and peers for its keen attention to detail making it one of the most reliable contractors in the area. 

The Cougar Mountain Addition/Remodel is a noteworthy project of Tek-line Construction. For this project, the firm built a new master bedroom that beautifully blends with the rest of the existing rooms in the mountain home. The remodeling firm combined different textures to create a warm and inviting space complementing the property’s rustic environment.


Cutuli Homes

Kirkland, WA

Since 1995, Cutuli homes has been building exceptional homes across Greater Seattle and King County. With over 20 years of experience, the firm has established itself as a reliable contractor specializing in constructing new homes, remodels, additions, kitchens, baths, and decks. The firm is known for its quality workmanship and cost-efficient practices. Spearheading the firm is owner Jim Cutuli who is directly involved and hands-on in all aspects of the project. As a certified green builder and an EPA certified renovator, Jim maintains high standards across all types of build-outs. 

Composed of a team of professional builders, the company has developed long-lasting relationships with clients and generates new business from referrals. Cutuli Homes is driven by its passion for creating new homes and delivering outstanding craftsmanship and service. Regardless of project size, requirement, or budget, the firm provides the same level of care and attention while offering clients a straightforward approach.


Higgason Construction

24846 SE 19th St., Sammamish, WA 98075

Located in Sammamish, Higgason Construction is a fully licensed and bonded general contractor operating for more than a decade. The design-build firm is recognized for providing turnkey services including new construction, custom homes, whole house renovations, home additions, remodels, and custom cabinetry. With a wide range of home improvement services, the company caters to homeowners in Sammamish, Redmond, Bellevue, and nearby communities. 

With the guidance of owner Shannon Higgason, Higgason Construction brings decades of construction expertise delivering projects on schedule without exceeding the budget. Shannon’s in-depth knowledge and experience in residential construction provide a unique approach in transforming innovative ideas into reality. Together with a group of veteran builders, engineers, and architects, the firm collaborates with clients to create efficient solutions while maintaining the design concept. The company maintains a 100% customer guarantee in every project starting from the initial consultation to the final execution.


Seattle Style Remodel

1420 NW Gilman Blvd. Suite #2166, Issaquah, WA 98027

Established in 2006, Seattle Style Remodel is one of the top design-build firms in Issaquah. Serving Seattle’s Eastside area, the firm provides a wide range of home improvement solutions catering to the client’s unique requirements. The company effectively manages projects from the design to the construction stage. With a detailed approach, the company’s team of expert designers and builders helps clients pick the best materials without exceeding the budget. The company is recognized as an industry leader and one of the most trusted and reliable contractors in the city.

One of the firm’s notable projects is the Bellevue Home addition. Seattle Style Remodel was employed to design and build a home addition as well as completely remodel the house. The firm took on the challenge of building several bedrooms, bathrooms, living room, kitchen, and office. Additionally, the company also installed a retaining wall and roof.


McAdams Remodeling & Design

13003 NE 85th St., Kirkland, WA 98033

For almost 50 years, McAdams Remodeling & Design has been specializing in home additions and remodels across Kirkland, Redmond, and other Eastside neighborhoods. Offering custom remodeling solutions, the company provides decades of industry expertise along with a passionate team of veteran professionals. Leading the firm are owners Len McAdams and Dale Sahr bringing a combined experience in residential construction of over 80 years. Focusing on single-family homes, the firm encompasses a broad range of styles including modern, contemporary, Craftsman, and mid-century designs.

The Woodinville Whole House Remodel and Addition is a notable project of McAdams Remodeling & Design. The homeowners assigned the firm to create a space that caters to their needs, personalities, and lifestyles. The firm added a bay area in the garage for additional workspace and built a game room for entertaining guests. The rest of the house was renovated for a fresh update.


Shepel Homes

6100 219th St. SW, Unit #480, Mountlake Terrace, WA 98043

Located in Mountlake Terrace, Shepel Homes has been building superior quality homes for various clients in the Greater Seattle area for over a decade. The firm specializes in all types of home installations that enhance the homeowner’s way of living. Offering design-build solutions, the firm provides a convenient and streamlined process for clients without having to deal with different contractors. With an integrated approach, the firm’s team of professional designers and builders guides clients in every stage of the process. From the design consultation to construction and project completion, the company focuses on the smallest detail.

Owner and founder Peter Shepel developed his expertise in carpentry and stonework ranging from minor renovations to whole-house remodels. Shepel Homes is equipped to manage all types of projects. Maintaining high standards of quality control, the company guarantees customer satisfaction across all its projects. One highlight project of the firm is a simple room and bathroom addition where the firm was tasked to create a space fit for the homeowner’s aging parents.


Bender Custom Construction

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

For forty years, Bender Custom Construction has been providing exceptional craftsmanship in Bellevue, Redmond, and nearby areas. As a client-focused firm, the company listens to its customers and takes into account their preferences, needs, and lifestyle. The premier custom home builder and remodeler is operated by father and son Don and Steve Bender. Since its inception, the firm has built over 400 homes throughout the Pacific Northwest.

Having worked with the top architects, engineers, and subcontractors in the area, the firm guarantees quality construction and service in all aspects of the project. With comprehensive experience in residential construction, the firm handles all types of built-outs ranging from small to large-scale projects. The Washington Park Historical Renovation is a prominent project of the firm. For this property, Bender Custom Construction was hired to renovate this lovely historical home delivering a traditional and classic design the homeowners can enjoy for many generations.


Eakman Construction

705 Kirkland Ave., Kirkland, WA 98033

Eakman Construction delivers high-quality home construction catering to homeowners across Kirkland, Redmond, and neighboring towns. As one of the leading contractors in town, the firm has developed years of knowledge and experience in residential construction focusing on custom homes, renovations, and additions. Committed to providing quality service in every stage of the construction process, the firm continuously exceeds customer expectations.

Leading the firm is company president Stacy Eakman who has amassed a diverse portfolio of clients. Over the years, the firm has acquired various accreditations from different industry organizations including the National Association of Home Builders (NAHB) and the American Institute of Architects (AIA). In 2020, Stacy was named as one of the Forty Under Forty by Pro Remodeler. Eakman Construction is recognized as a top custom home builder and remodeler in Greater Seattle.


Armada Design & Build Inc.

12727 Northup Way Suite #6, Bellevue, WA 98005

For 10 years, Armada Design & Build has been constructing homes throughout Bellevue and Redmond counties. Specializing in interior and exterior remodeling, the firm uses high-grade materials including granite and marble countertops, hardwood, carpet, cabinetry, and flooring to modernize homes. The firm also offers new construction, additions, and design services. With the guidance of founder Alex Shikhanov, the firm provides a stress-free process so clients can enjoy the whole experience of renovating their property. 

The company’s in-house consultants collaborate and work directly with clients to ensure the materials used are made from the highest standards. At the same time, these consultants provide customers with a wide range of design options that fit their needs best. Since its inception, the firm has established affiliations with various organizations including the Master Builders Association (MBA) of King and Snohomish counties and the Better Business Bureau (BBB). Armada Design & Build has received several recognitions and was presented the MBA REX Award from 2017 to 2020.


Tenhulzen Residential

14701 148th Ave., NE Woodinville, WA 98072

Established in 2012, Tenhulzen Residential offers a broad range of home improvement services including bathroom, interior, kitchen, addition, and outdoor living. As a design-build firm, the company provides an all-inclusive service from start to finish making it convenient for clients. The performance-based firm provides accountability in all aspects and offers a smooth process from design to construction. Offering complete services, many of the company’s business comes from repeat clients. With a collaborative working environment, the firm can take into account the smallest details to ensure the client’s needs are fulfilled in every aspect of the project.

Over the years, Tenhulzen Residential has been recognized by publications such as the Auburn Examiner and NAHB Now. One of the firm’s specialty projects is a repurposed Wine Cellar in Medina. For this project, the firm redesigned a former rehearsal studio into a wine cellar incorporating a mahogany racking system into the space. The walls were insulated to provide consistent temperature throughout the room.


Gallagher Construction

12835 Bel-Red Bldg. 300 Suite #320, Bellevue, WA 98005

Design-build firm, Gallagher Construction was founded in 2013 in Bellevue. The family-owned and community-based firm is composed of highly skilled individuals who excel in their field of expertise. With over 15 years of construction and remodeling experience, owners Steve Gallagher and Adam H. have completed numerous projects and are directly involved in every project. Part of the firm’s design process is to develop a customized solution including the objective, needs, lifestyle, style, environment, and budget. 

Gallagher Construction offers in-house design services and works with the top architects, engineers, subcontractors, and consultants. From small construction jobs to large projects, the firm prioritizes each project equally regardless of size. For every project, the firm collaborates with clients to ensure goals are met. The result always exceeds customer expectations. In 2021, the firm was named as one of the Top 500 by Qualified Remodeler. The Bridle Trails Mid Century Modern Kitchen is a noteworthy project of the firm. This kitchen addition showcases the firm’s expertise in designing and building functional spaces for homeowners.


Rainier Custom Homes

306 Wells Ave S Suite E, Renton, WA 98057

Multi-award-winning Rainier Custom Homes is known for consistently delivering quality homes, additions, renovations, and remodels. With over a decade of service, the firm has produced exceptional homes throughout Renton, Redmond, and nearby communities. As a premier home builder in the Eastside, the company has acquired awards and recognitions and was honored at the 2017 National Kitchen & Bath Association (NKBA) Kitchen and Bath Design Awards. The firm’s projects were also featured in various publications including the Pacific Northwest Magazine and Seattle Times.

Spearheading the firm are owners’ father and son Jason and Michael Jarman. With an extensive background in design, carpentry, and customer service, Jason produced multi-million-dollar projects before merging his company, Sunstone Home, with Rainier Custom Homes. Michael, on the other hand, has strong experience in construction management. The Seattle Belltown Penthouse earned the firm first place at the NKBA 2017 Design Award for its work on the powder room. 


Riddle Construction & Design

13606 Woodinville Redmond Rd. NE, Redmond, WA 98052

Riddle Construction & Design offers superior design-build solutions catering to homeowners across Redmond and the Eastside. Since 1967, the company has earned a reputation as a leading contractor in town offering a full range of construction and renovation services with a dedicated team of expert builders. As a one-stop shop, the firm provides clients with a simple and streamlined process maintaining the highest standard of service and workmanship.  

With the combined skills and expertise of Curt, Chris, and Josh Riddle, the family owned-and-operated firm provides over 35 years of construction experience. One of the firm’s memorable projects is the Redmond Craft Studio Addition. For this project, Riddle Construction and Design went all out in showcasing the firm’s creative design process combining different colors, textures, and patterns to create a whimsical and fun arts and crafts studio. This space strongly reflects the client’s vision, lifestyle, and personality while providing a practical and efficient space.