Business Details
21 Years
experience
Your Trusted Home Builder in Mercer Island, WA
Since 2005, Gallagher Co. Co. has been dedicated to crafting custom homes, remodels, and commercial projects that reflect our clients' visions while maintaining the highest standards of quality and craftsmanship. Our team of experienced professionals brings decades of combined expertise in residential and commercial construction, ensuring every project is executed with precision and care. We prioritize sustainable building practices and innovative design, integrating modern technology with timeless aesthetics to create spaces that are both functional and beautiful.Our commitment to transparency, client communication, and attention to detail has earned us a reputation as a trusted leader in the Mercer Island community. With over 20 employees and a network of skilled subcontractors, we deliver personalized service and exceptional results that exceed expectations. Recognized as one of the Puget Sound Business Journal's Fastest Growing Companies, we continue to expand our capabilities while maintaining the integrity and dedication that have defined our work for two decades.
Services
Custom Homes
Remodels
Outdoor Living
Commercial
Waterfront Homes
Equestrian Estates
Beach Club Rebuilds
Eco-Friendly Homes
Kitchen Remodels
Bathroom Remodels
Details
- Year established: 2005
Highlights and features
- We have over 20 years of experience in custom home construction.
- Our team of 20+ experts ensures personalized service.
- Recognized as a Fastest Growing Company by Puget Sound Business Journal.
- Commitment to quality and attention to detail in every project.
- Dedicated to sustainable and innovative building practices.
What people say
Attention to detail
Professionalism
Quality work
Dream home
Excellent service
Services
Custom Homes
Gallagher Co. Co. specializes in creating bespoke custom homes tailored to clients' unique needs and lifestyles. Our process combines expert craftsmanship with innovative design to deliver luxury properties that integrate sustainable features and modern elegance. From waterfront estates to eco-friendly residences, we ensure every detail aligns with your vision, budget, and timeline.
Remodels
We transform existing spaces through high-end remodeling services that enhance functionality and aesthetics. Our team focuses on modern kitchens, spa-like bathrooms, and comprehensive home upgrades using premium materials. With a commitment to minimizing disruption, we deliver polished results that elevate your living experience while maintaining your home's structural integrity.
Commercial
Gallagher Co. Co. provides commercial construction solutions for diverse projects including office spaces, retail centers, and storage facilities. Our approach prioritizes durability, efficiency, and design innovation to create functional spaces that support business growth. We collaborate closely with clients to ensure projects meet industry standards and long-term operational needs.
Outdoor Living
We design and build stunning outdoor environments that extend living areas beyond the home. Services include custom patios, pool areas, fireplaces, and waterfront features. Our team integrates premium materials and creative layouts to create durable, inviting spaces perfect for entertainment or relaxation in Mercer Island's climate.
Waterfront Homes
Specializing in waterfront construction, we craft homes that maximize scenic views while addressing unique environmental challenges. Our expertise includes dock systems, erosion-resistant foundations, and climate-adapted materials. Each project balances luxury with practicality, ensuring homes withstand coastal conditions while offering unparalleled comfort and design.
People
Tom Gallagher
Owner
With 35+ years in construction, Tom founded Gallagher Co. Co. in 2005 after extensive commercial experience. He leads with integrity and expertise, focusing on quality craftsmanship and client satisfaction.
Leanne Gallagher
Co-Founder
Leanne graduated from the University of Washington in 1988 and co-founded Gallagher Co. Co. She specializes in design, creating the company's signature style through innovative interior solutions.
Jay Nygaard
Senior Project Manager
Jay has 22 years of construction experience, focusing on high-end residential and light commercial projects. He graduated from the University of Washington in 2003 and excels in collaborative project execution.
Robin Farrish
Controller
Robin brings 24 years of financial expertise in real estate and construction. She graduated from Utah Valley University with a BS in Accounting and ensures fiscal precision across all projects.
Dave Kessler
Project Executive
Dave holds a Bachelor's in Construction Management from UW and combines commercial construction experience with real estate leadership to drive our commercial division's growth initiatives.
Questions
What types of projects does Gallagher Co. Co. Co. specialize in?
We specialize in custom homes, luxury remodels, commercial construction, and outdoor living spaces, with expertise in waterfront properties and eco-friendly designs.
How long has Gallagher Co. Co. Co. been in business?
Gallagher Co. Co. Co. was founded in 2005 by Tom and Leanne Gallagher Co. Co., with over 20 years of combined construction experience prior to launching the company.
Do you serve areas outside Mercer Island?
While based in Mercer Island, we serve the broader Puget Sound region including Seattle, Eastside, and surrounding communities.
What sets Gallagher Co. Co. Co. apart from other builders?
Our commitment to quality, attention to detail, and personalized service differentiate us, along with our team's extensive experience and recognition as a Fastest Growing Company.
Can you handle both residential and commercial projects?
Yes, we offer comprehensive services for both residential (custom homes, remodels) and commercial (office spaces, retail centers, storage facilities) construction needs.
