Home Remodeling in Mercer Island and the Greater Seattle Area

Gallagher Co. has been renovating homes on Mercer Island and throughout Western Washington for over two decades. Your renovation gets its own superintendent, its own schedule, and a crew that treats it as their primary focus from demo day through final walkthrough.

20+

Years building

300+

Projects completed

Mercer Island

Based

What a Gallagher Remodel Looks Like

Full Home Renovations

Whole-home remodels that rethink floor plans, update systems, and bring an older home up to current standards. We coordinate structural, mechanical, electrical, and finish trades with the same rigor we apply to new construction.

Kitchen and Living Space Remodels

High-end kitchen renovations, great room expansions, and open-concept conversions. These projects often involve structural modifications, and we manage every detail from load-bearing wall removal to cabinet installation.

Primary Suite and Bathroom Renovations

Complete primary suite redesigns, luxury bathroom builds, and multi-bathroom renovations. Custom tile, heated floors, steam showers, and millwork that matches the quality of the rest of your home.

Additions and Expansions

Adding square footage to an existing home requires careful integration with the original structure. We handle everything from foundation work to roofline matching, ensuring the addition feels like it was always part of the home.

See Our Remodel Projects

Our portfolio includes completed remodels with real photography from real job sites. See how we transform existing homes while maintaining the craft and attention to detail our clients expect.

How We Manage a Remodel

Remodels have complexities that new construction does not. You may be living in the home during the work, unforeseen conditions can change the plan, and existing systems need to be matched or upgraded. Our process accounts for all of it.

1

Assessment and Planning

We assess existing conditions before committing to a scope or number. What is behind the walls matters. We identify potential issues early so your budget and timeline reflect reality. We coordinate with your architect or designer during this phase and document every clarification in writing.

2

Budgeting and Preconstruction

You receive a line-item budget organized by trade, not a lump sum with vague categories. We walk through every line so you understand what you are paying for. Allowances are identified, and any scope adjustments go through a structured process with numbered options and real cost impacts you approve.

3

Construction

Your superintendent manages the project on site every day. The budget is tracked in real time, and weekly meetings cover progress, upcoming milestones, and decisions that need your attention. If you are living in the home during renovation, we plan the work to minimize disruption.

4

Completion

We walk the finished project with you room by room. Every punch list item is resolved before we consider the job complete. We review full budget actuals and closeout documentation, and we provide a warranty on workmanship and materials. The project is done when you are satisfied.

Why Remodel With Gallagher Co.

The Same Standard as a New Build

Many builders treat remodels as filler work between new construction projects. We do not. Our remodels receive the same superintendent, the same trade crews, and the same quality expectations as our custom homes. That distinction shows in the finished product.

Built for Homeowners Who Expect More

Our remodel clients are not looking for the cheapest option. They want a contractor who communicates clearly, manages the budget honestly, and delivers a result that justifies the investment. That is the standard we hold ourselves to on every project.

Two Decades of Local Experience

Having completed many projects in Mercer Island and across the Greater Eastside, we have seen the full range of existing conditions. Old framing. Outdated electrical. Plumbing that does not meet current code. We know how to assess these issues, price them accurately, and resolve them without derailing the project.

Protecting Your Home During the Process

A remodel is invasive by nature. Dust, noise, foot traffic through your living space. We take dust containment, site cleanliness, and access management seriously because we understand that this is your home, not just our job site.

Where We Build

Our remodel projects span Mercer Island, Bellevue, Kirkland, and communities across the Puget Sound region, as well as Seattle neighborhoods including Laurelhurst, Madrona, Magnolia, and Broadmoor. We have also completed work in downtown Seattle.

If your project is outside our primary area, we encourage you to reach out. We are open to the right projects regardless of location.

  • Mercer Island
  • Bellevue
  • Kirkland
  • Laurelhurst
  • Madrona
  • Magnolia
  • Broadmoor
  • Downtown Seattle

Tell Us About Your Remodel

If you are considering a renovation on Mercer Island and around Puget Sound, let us know what you have in mind. We will give you an honest answer on scope, timeline, and whether our team is the right match.