Gallagher Co.

Call Directions Website Contact the business

Gallagher Co. Specializing in custom homes and large remodels, Gallagher Co. is located on Mercer Island and owned/managed by Mercer Island residents.

Gallagher Co strives to be the home builder of choice in Mercer Island and the West Bellevue area. With over 30 years of combined construction experience, our team of custom builders are focused on paying attention to the smallest of details, imparting unprecedented value in every project we touch. We pride ourselves on impeccable quality from preconstruction through project closeout. We are committed to having your experience be a smooth and easy process and your satisfaction is paramount to us.

Another day on site with the Gallagher Co. crew! Good projects start with good people. Hope everyone has a great Tuesday...
09/22/2026

Another day on site with the Gallagher Co. crew! Good projects start with good people. Hope everyone has a great Tuesday 💪

A beautiful way to head into the weekend. Happy Friday from Gallagher Co. 🤍Interior design: KAT LAWTON Architect: Studio...
09/11/2026

A beautiful way to head into the weekend. Happy Friday from Gallagher Co. 🤍

Interior design: KAT LAWTON
Architect: Studio AM Architecture | Interiors
Photography: Seattle Interior & Architecture Photographer

09/04/2026

Welcome to Treefort 🌳 A beautiful home tucked into the trees. Let us show you around!
•
•
•
PRda Studio
•
•
•

Photography: Anna Gallagher

waterfront

Address

3010 77th Avenue SE Suite 202
Mercer Island, WA
98040

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm

Telephone

(206) 232-1600

Website

Alerts

Be the first to know and let us send you an email when Gallagher Co. posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Gallagher Co.:

Shortcuts

Share

Category