Fortuna, Mercer Island, WA

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Call now: (206) 232-1600

Custom Home Building Tailored for Fortuna, Mercer Island, WA

Fortuna, Mercer Island, WA, homeowners looking to build a custom home that truly fits their lifestyle trust Gallagher Co. Construction for thoughtful planning and dependable craftsmanship. For more than 20 years, we’ve helped families turn early design ideas into homes that feel personal, well-built, and grounded in everyday comfort. We take the time to understand how you want your home to function, whether that means open gathering spaces, quiet private areas, or a layout centered around the views Fortuna is known for. From initial conversations through move-in day, our team stays accessible and engaged so the process feels manageable rather than overwhelming. If you’re considering a custom home in Fortuna, Mercer Island, WA, call 206-232-1600 or contact us online to start the conversation.

Schedule a Consultation
Call now: (206) 232-1600

Our Services

Experience the pinnacle of luxury living with bespoke spaces masterfully built by Gallagher Co.

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Custom Homes

Experience the ultimate in personalized living with our custom home construction services. We turn your dream home into reality with unrivaled craftsmanship and quality.

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Remodels

Revitalize your living space with expert remodeling services. From single rooms to whole-home transformations, we’ll enhance your home’s comfort, beauty, and value.

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Outdoor Living

Extend your living space into Washington’s famous natural beauty with custom outdoor living solutions. We create patios, decks, outdoor kitchens, and more to elevate your lifestyle.

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Commercial

Tell your company’s one-of-a-kind story through bespoke commercial construction. We’ll bring your vision to life, supporting your goals and impressing your clients.

Spectacular Custom Waterfront Estates in Fortuna, Mercer Island, WA

Fortuna’s waterfront setting offers a unique opportunity to build something exceptional, and Gallagher Co. Construction has the experience to bring these properties to life. We design and build custom waterfront homes that take full advantage of natural light, sweeping vistas, and the peaceful environment surrounding Mercer Island’s shoreline. Whether you envision wide, window-filled living spaces, outdoor terraces overlooking the water, or a floor plan that seamlessly blends indoor and outdoor areas, we help shape a home that maximizes your lot and enhances your daily routine. Building near the water requires careful planning and technical know-how, and our team handles the details that protect long-term durability while still giving you the custom features you want. Every waterfront home we build in Fortuna, Mercer Island, WA, reflects a balance of quality construction, considered design, and the personal touches that make a house feel like a home.

Elevate everyday living with thoughtfully designed custom properties

Residential

Enjoy a custom home that reflects your style and enhances daily living.

Commercial

Create innovative spaces that impress clients and support growth.

Waterfront

Experience serene, private retreats with breathtaking waterfront views.

Outdoor Oases for Year-Round Enjoyment in Fortuna, Mercer Island, WA

Fortuna, Mercer Island, WA, is known for its fresh air and beautiful surroundings, and your property should help you enjoy both. Gallagher Co. creates outdoor living spaces that expand the usability of your home and make everyday life more comfortable. We’ve built covered patios that offer shelter on rainy days, outdoor kitchens that make hosting easier, and fire features that extend evenings long after the sun goes down. Our goal is always the same: create a functional, inviting space that feels like a natural extension of your home. We look at your yard, your lifestyle, and how you want to spend time outdoors, then handle the materials, structural considerations, and layout to make the space work seamlessly in Fortuna’s climate. If you want to make the most of outdoor living in Fortuna, Mercer Island, WA, contact us today.

Ready to get started?

Schedule a Consultation
Call now: (206) 232-1600

Endless Possibilities with
gallagher construction

A well-planned commercial building supports efficiency, comfort, and long-term growth. Gallagher Co. Construction works with business owners throughout Fortuna, Mercer Island, WA, to create spaces that match the specific needs of their operations. Whether you’re opening a new storefront, expanding an office, or renovating a specialty space, we take time upfront to understand how people will move through the building and what systems are required to keep things running smoothly. Our team manages scheduling, permitting, and subcontractor coordination to keep your project on track with as little disruption as possible. From professional service offices to hospitality spaces, we’ve completed a wide range of commercial projects in Fortuna, each designed to help businesses operate more effectively right from day one. If your company needs a new or improved space in Fortuna, Mercer Island, WA, we’re ready to help you plan the next step.

Schedule a Consultation
Call now: (206) 232-1600

Testimonials

We have remodeled and built on many occasions and have never had such a positive experience. Tom and his whole team made the experience fun and exciting. We built our home 25 years ago and it needed a major remodel and refresh. We also had some things that we wanted to add or change based on our changing lifestyle. Not only was the project on budget and largely on time, the communication and interaction with Tom, Jason, Brian and many subcontractors was so professional. As with any construction project, things came up that needed creative solutions and when we wanted some changes or additional scope, the answer was always “we can make that work”. The budget was managed carefully and we never felt “change order fatigue”. We so appreciated the professionalism and would welcome the opportunity to work with Gallagher again. Thanks to the whole team for making our home one that we can love for another 25 years.
Brad & Stephanie Creswell
Tom and Leanne Gallagher were wonderful to work with. Tom is the consummate professional-quality without compromise, easy to work with, approachable, and tremendous management of the job. He tended to the smallest details as the project progressed to bring our home in on time and move-in ready without a punch list. Leanne, as a designer, has a fabulous eye and chose finishes, designed cabinets, and set the tone for the look of our home that gets compliments from every guest. This is the third home we have built and in our experience, Gallagher Co. builds the most beautiful, highest quality product out there. We love our home and can’t imagine a better building experience and a more lovely end product.
Nan Burton
You have created the most beautiful yet livable home we’ve ever owned. Lots of thought went into the features: outdoor living area with overhead heaters, fireplace, and complete bathroom for lakeside living. The interior spaces are perfect for a family and also for entertaining. The cabinetry, lighting and finish details are timeless and elegant, but not too formal. The dock material is awesome, very low-maintenance and discourages ducks from lounging on the dock.
Elizabeth Huber
You have creat Jennifer and I couldn’t be more please with the gorgeous home you built for us. It is absolutely everything we ever dreamed and more. From the moment we saw the black and white house from the outside we were captivated, and the attention to detail on the interior is unlike anything we have seen. Your sense of style plus quality construction results in a home that we home to live in for the rest of our lives. Thank you for your help in resolving some of the very minor issues that any new house would have. We appreciate your honesty, professionalism, and the quality of your work. It has been an absolute please becoming your neighbor and friend. I would be happy to discuss your work and our home with anyone.
Chad & Jennifer Reibman
I just wanted to say a big thank you for helping my dream of a new bathroom/laundry/mud room come to life! Our new master bathroom is an oasis of luxury – I feel like I am stepping into a four star hotel when I come through the door. The laundry and mudroom function so much better for our family now too.
Angie Lampkin
I just wanted to say a big thank you for helping my dream of a new bathroom/laundry/mud room come to life! Our new master bathroom is an oasis of luxury – I feel like I am stepping into a four star hotel when I come through the door. The laundry and mudroom function so much better for our family now too.
Jodi McCarthy
We hired Tom for a renovation project to our home in the summer of 2010. The project included building out new windows and replacing old ones, demolishing and rebuilding a deck system, tearing down existing stucco and replacing it with wood siding, and all of the finishes required once the work was completed (such as interior drywall repair, wood flooring repair and interior/exterior painting & trim). Because the job required that the new renovations blend and interface functionally and aesthetically with the part of the house that was not renovated, we needed a contractor with superior expertise and attention to detail. Tom’s broad experience, creativity and integrity made him a perfect fit for our needs and he didn’t disappoint us. His solutions were creative and cost effective and were delivered on schedule with the highest quality. We highly recommend Tom for any renovation project of any size and complexity.
Mark & Elaine Bolger
Everything is great. Thank you very much for taking care of it. You go out of your way to make sure everything is right… and that is very rare these days. I’ve had several compliments. I love it and only wish I’d done it years ago. All of the men you selected to work here were delightful. First of all, they were prompt! And pleasant, courteous, neat. Thank you for taking the customer’s concern seriously. We would be honored to have you see the finished project. Bring your folks too!
Frank Elefson

A Construction Experience Centered on You

Gallagher Co. Construction has built a reputation throughout Fortuna, Mercer Island, WA, by keeping our focus where it matters: consistent communication, quality workmanship, and a personal approach to every project. Rather than taking on more work than we can properly manage, we keep our project load intentional so our leadership team can stay involved from start to finish. When you have a question, you reach someone who knows your plans. When an adjustment is needed on site, we respond quickly to keep the project moving. Our long-standing relationships with local inspectors, engineers, suppliers, and subcontractors help your project progress smoothly, with reliable timelines and dependable results. After more than two decades in the industry, we’ve learned that thoughtful planning and open communication build the strongest foundation. If you’re ready to start your Fortuna, Mercer Island, WA, custom construction project with a team that takes your goals seriously, call 206-232-1600 or contact us online to schedule a consultation.

Are you ready to build your dream home?

Schedule A Consultation
Call now: (206) 232-1600

Schedule a Consultation