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Premium Craftsmanship: High-End Remodeling, Built for Real Life.
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White-Glove Management: Expert navigation of Mercer Island city permits.
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Seamless Logistics: Professional, low-impact island construction.
Elevating Your Island Estate
Perfectly positioned between Seattle and the Eastside, Mercer Island offers an unparalleled mix of community charm, excellent schools, and stunning Lake Washington views. Whether you own a classic mid-century modern home on the First Hill, a legacy waterfront estate, or a secluded hillside property, your home’s interior should perfectly capture the beauty of your surroundings while accommodating your modern routine.
At Fusion Builders LLC, we specialize in high-end, transformative renovations for discerning homeowners. We bring a premium but approachable touch to every Mercer Island project. By tearing down restrictive walls to flood your home with natural light and combining top-tier materials with flawless architectural layouts, we transform dated houses into spectacular island retreats. From the first design sketch to the final walk-through, we provide a seamless, white-glove experience.
Our Custom Remodeling Services on Mercer Island, WA
Luxury Open-Concept Kitchens
An island home demands a kitchen built for grand entertaining and everyday family life. We specialize in comprehensive structural remodels that open up your floor plan to maximize natural light and water views. Our team installs expansive custom islands, premium quartz and natural stone countertops, and seamlessly integrated high-end appliances designed for the modern culinary enthusiast.
Spa-Inspired Master Bathrooms
Bring the luxury of a five-star boutique hotel directly into your master suite. We specialize in down-to-the-studs transformations, creating expansive wet rooms with frameless glass enclosures, deep freestanding soaking tubs, radiant heated flooring, and custom stonework.
Waterfront & Hillside Outdoor Living
Your Lake Washington frontage and elevated views are your property's greatest assets. We design and build premium outdoor living spaces tailored to your terrain. From expansive, multi-level composite decking with frameless glass railings to covered outdoor kitchens, we create the ultimate environment for year-round entertaining that easily withstands the waterfront climate.
Custom Additions & Architectural Expansions
Whether you need to expand a master suite, add a dedicated executive home office, or build out a custom guest wing, we safely and seamlessly expand your home’s footprint. We ensure your new addition blends flawlessly with your property’s original architecture, whether it's classic mid-century or modern contemporary.
Navigating Mercer Island Permitting, Shoreline & Steep Slope Codes
Renovating on Mercer Island requires a local contractor who intimately understands the city’s unique and rigorous municipal codes. The City of Mercer Island enforces strict regulations regarding the Shoreline Master Program (SMP), steep slope critical areas, and lot coverage limits.
Fusion Builders LLC handles this complex process with absolute precision. We work closely with top-tier structural engineers, geotechnical experts, and architects to ensure your project complies perfectly with city ordinances. From shoreline setback requirements for a new custom deck to navigating structural permits for an interior remodel, we manage all architectural drafting, design reviews, and city inspections, ensuring your luxury project stays fully compliant and on schedule.
Hear From Our Island & Eastside Clients
Modern Master Bathroom in Fox Island WA


Modern Master Bathroom in Fox Island WA

Tiffani’s Bathroom Addition in Auburn, WA | Fusion Builders Client Testimonial

Stunning Bathroom Remodel Review in Kirkland, WA | Fusion Builders

Stunning Open-Concept Kitchen Remodel Review in Lake Forest Park, WA | Fusion Builders
Frequently Asked Questions: Mercer Island Remodeling
Can you build a custom deck on a steep slope or waterfront property?
Yes. Many homes on Mercer Island sit on steep grades or right on the water. Building on these properties requires specialized structural engineering and strict adherence to the city's critical area ordinances and Shoreline Master Program. We work closely with geotechnical engineers to design and permit safe, stunning, multi-level decks tailored specifically to your hillside or waterfront lot.
Can you remove load-bearing walls in my older mid-century home?
Absolutely. Mid-century modern homes are iconic on Mercer Island, but they often feature segmented, closed-off kitchens. We work with licensed structural engineers to safely remove load-bearing walls and install hidden support beams (flush beams), transforming your home into a sweeping, modern, open-concept living area while preserving its architectural charm.
How do you handle construction logistics on the island?
We understand that Mercer Island has strict noise ordinances, and getting materials on and off the island requires meticulous planning. Our teams manage all delivery logistics to minimize traffic impact on your narrow residential streets, maintain impeccably clean job sites, and strictly adhere to all city-designated construction hours to ensure minimal disruption to you and your neighbors.
Ready to Transform Your Mercer Island Home?
High-End Remodeling, Built for Real Life.
Your property is located in one of the most exclusive and beautiful communities in the Pacific Northwest. Let’s ensure the inside of your home—and your outdoor living space—matches that standard. We are ready to listen to your vision and execute it flawlessly.