(503) 314-9728 dorian@thermoloc.co


Whether you are looking for a full replacement of all of your windows and doors, simply looking to fix broken glass in an existing window, or anything in between, Therm-O-Loc provides all of the services that you need. We provide a free in-home consultation to help you select the right windows and doors for each opening. Our knowledgeable experts will explain all of your options and help you decide on the products and services that best suit you and your home’s needs. Once selected, our highly skilled, efficient, and cleanly team will come out and provide a hassle free installation, leaving your home looking and feeling great.

We offer full replacement of your old windows with brand new vinyl, wood, or fiberglass windows. We use products from the best local manufacturers here in Oregon: Milgard and Cascade Windows. Our services also include glass replacement for broken or failed existing windows.

Are you building a new home or commercial property? Let us give you a free quote on your windows and doors. We provide the highest quality products paired with unbeatable service at an exceptional price.

Make a statement with bold doors to add a practical and appealing touch to your home. We offer beautiful sliding, french, and folding doors from some of the top manufacturers.

All of our services come with a free in-home consultation. Whether you prefer modern, traditional, farmhouse, or any style in between, we will help you pick the perfect options for your windows and doors. We are here to make sure that you love your windows even long after they are installed.

Interested in a Free Estimate?

Locations Served



West Linn


Lake Oswego



Battle Ground





Therm-O-Loc Showroom