About us

Colonial GC is a full service home remodeling company located in Issaquah, WA. We’re a premier remodeling and construction company serving Snohomish and King County surrounding areas specializing in all stages of construction. We specialize in kitchens, bathrooms, and tenant improvements. We are dedicated to enhancing the lifestyle of our clients. We offer the perfect blend of project planning, project management, design and quality construction.

For any size project, large or small, Colonial GC, is a remodeling contractor that will complete your project in a timely manner with high quality craftsmanship. Whether your project is large or small, we strive to make your dream renovation come true.

Our company strives to exceed the expectations of each and every client. Our experienced design/build professionals will guide you through every aspect of the construction process putting your mind at ease. BUILDING ON YOUR VISION IS OUR REMODELING DREAM! Please contact us today for a free estimate!


Kitchen Remodel

Kitchen is the most popular remodeling project for homeowners. It’s typically the "hub" of your home. Giving your kitchen a refreshed and updated look can bring a boost in value if you plan to sell in the future. Our knowledgeable professionals will guide you through the kitchen renovation process putting your mind at ease. With an updated look, functionality and durability; your kitchen can be enjoyed for many years to come.

Bathroom Remodel

Do your bathrooms look outdated? Upgrade your home’s style and comfort by scheduling services with quality bathroom remodeling contractors in Snohomish and King County surrounding areas. Colonial GC has extensive experience in providing comprehensive bathroom remodeling services throughout the area.

Our design and color selection work in harmony with the vibrant palettes of nature. Whether it is a custom style vanity, eye catching tile design, or a luxurious shower; Colonial GC combines function and beauty that fits your lifestyle needs.


Schedule Appointment

All estimates are free! Please schedule a date and time with our contracting specialist to provide you with the best price for your budget needs!


Adam has done several small and large projects for my old Victorian home. He’s always incredibly professional and accommodating. I know I can trust him to work diligently even when I’m away on vacation.
People have been complimenting my bathroom nonstop since Adam remodeled it one year ago. Everything’s still got that new sheen and the tilework is just awesome.
I’ve been hiring the Colonial GC since I first moved into my house a couple of years ago. They did my kitchen cabinets, roofing, basement and some fixed in my bathroom. There’s nothing the Colonial GC can’t do.
My bathroom is so outdated and it was always giving me a headache. It needs a lot of fixes and what I’d do is I’d hired other plumbers in the neighbourhood, but problems would always come back. Since I had it remodeled by Colonial GC - it’s been nothing but perfect. I’m so grateful! I love my new bathroom, so modern, elegant and functional.
I love my new kitchen - thanks to Colonial GC! They’re very professional and commited. They listen to what my preference and within my budget.
— Joan Ersy
Adam responded to our request immediately and was at our home the next day. We needed a water heater replacement and Adam and his son Ben installed a new water heater the following day. They were professional and prompt. We will be calling Wolff for all of our plumbing needs in the future.
— Jan B


We believe in beauty, hard work, comfort and craftsmanship. We take pride in our service. From beginning to end, our projects are a worry-free experience.  


Meet The Team


Diana has been in the design and  construction industry for over 15 years. She graduated with an interior design degree. She previously designed commercial kitchens, restaurants, café and retail stores before focusing on construction project management. She has a vast knowledge of many of the construction trades. Currently, she specializes in residential kitchen, bath remodels, and commercial tenant improvement. In her down time, she loves to go to the gym, explore the outdoors, travel and spend time with her son.


Adam was honorably discharged from the Navy in January of 1997 in Norfolk, VA. Adam was the owner operator of Patriot Plumbing in Norfolk from February of 1997 until 2012, when he moved back to the Seattle area.  He previously worked for several commercial and residential buildings that were being constructed in the Kent valley area.