Adding more space to your home is an investment in both comfort and value. At Mercer Island Remodeling, we're one of the Eastside's trusted home addition contractors, specializing in home additions in Issaquah and surrounding areas. Whether you're adding a new room to your house for a growing family or planning a full-scale expansion, our expert team ensures high-quality craftsmanship and a smooth, stress-free process from concept to completion.
We proudly serve Bellevue, Mercer Island, Kirkland, Redmond, Woodinville, and Issaquah, delivering tailored home additions and remodeling solutions that meet your needs and budget.
A well-designed home addition not only increases your living space but also enhances functionality, aesthetics, and property value. As experienced home addition builders, our team specializes in custom home expansions and new construction services, working with a dedicated room addition architect to ensure a perfect match with your home's existing style and layout.
At Mercer Island Remodeling, we provide expert home addition remodeling in Bellevue, as well as Mercer Island, Kirkland, Redmond, Woodinville, and Issaquah. As experienced home renovation specialists, whether you need a larger living space or a multi-purpose room, we ensure:
Seamless Design Integration – Complementary additions to fit in with the look and design of your home
High-Quality Materials – High quality materials for improved durability and aesthetic appeal
Energy-Efficient Upgrades – Energy saving measures to save you money and make your life more comfortable
Expert Construction & Project Management – From planning through completion, we’ve got you covered
We assess your home, discuss your needs, and create a customized home addition remodel plan.
Our team designs a seamless addition and handles all necessary permits and approvals.
Our expert home addition builders bring the plan to life, ensuring precision and high-quality craftsmanship on every home renovation.
We conduct a comprehensive final review to ensure your satisfaction with every detail.

Costs vary based on size, complexity, and materials. We provide detailed, customized estimates during our construction project consultation.

Timelines for adding a home addition depend on the project scope, typically ranging from 3-6 months. We ensure efficient scheduling and clear updates for every customer.

Yes, most home additions as well as ADUs require local permits. We coordinate the whole permitting and zoning process for you, from beginning to end. Building code restrictions, setbacks, and impervious surface limitations can differ greatly between municipalities like Bellevue, Mercer Island, and other Eastside cities. We design your seamless home addition with compliance with the restrictions of your specific municipality in mind, and take care of all of the necessary documentation and coordination required for approval.

Typically, you will not have to leave, particularly for additions at ground level such as expanding the family room or adding a master bedroom suite. We use effective dust containment barriers and schedule our work so that you are able to continue enjoying your residence. In the case of large structural changes, such as second story additions or major expansion of the kitchen and living areas, we will address the time frame during our consultation.

We make it a point that the primary concern when it comes to home additions is to blend perfectly. We study closely the architectural style of your house as well as the roofing, sidings, and trimmings used on it. This means that no matter if you have a modern mid-century house or a Northwest contemporary home, we can match the materials used.
Increase your living space through home additions, customized to your home in Bellevue. We at Mercer Island Remodeling are your home addition contractors who have years of experience in offering our services to clients. Whether you need another bedroom or just more space, we will take care of it all.