Adding more space to your home is an investment in both comfort and value. At Mercer Island Remodeling, we specialize in home additions in Issaquah and surrounding areas, creating custom expansions that seamlessly integrate with your existing home. Whether you need an extra bedroom, a spacious family room, or a dedicated home office, our expert team ensures high-quality craftsmanship and a smooth, stress-free process.
We proudly serve Bellevue, Mercer Island, Kirkland, Redmond, Woodinville, and Issaquah, delivering tailored home addition planning and solutions that meet your needs.
A well-designed home addition not only increases your living space but also enhances functionality, aesthetics, and property value. Our experienced team specializes in custom home expansions and new construction services, ensuring a perfect match with your home’s existing architecture.
At Mercer Island Remodeling, we provide expert home addition remodeling in Bellevue, as well as Mercer Island, Kirkland, Redmond, Woodinville, and Issaquah. Whether you need a larger living space or a multi-purpose room, we ensure:
Seamless Design Integration – Additions that match your home’s style and layout
High-Quality Materials – Durable finishes that enhance both beauty and longevity
Energy-Efficient Upgrades – Smart solutions to reduce costs and improve comfort
Expert Construction & Project Management – From permits to final walkthrough, we handle it all
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 renovation builders bring the plan to life, ensuring precision and high-quality craftsmanship.
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.
Expand your home with custom Bellevue home additions by Mercer Island Remodeling. Whether you’re looking to add a new bedroom, extend your living space, or create a multi-functional home office, we deliver expert craftsmanship and seamless integration.