(503) 314-9728 dorian@thermoloc.co

Door Replacement

For homes looking to upgrade their doors, Therm-O-Loc provides a full installation service to replace your old doors with brand new vinyl, wood, or fiberglass doors at an affordable price. Add a new level of comfortability and beauty to your home with top quality doors manufactured right here in Oregon from some of the highest rated manufacturers: Milgard and Cascade Windows. We offer sliding patio doors and french doors, as well as Milgard’s new modern and sleek folding glass walls that allow you to enjoy the best of indoor-outdoor living. Our team of highly trained installers will come out and professionally install your doors, getting the job done right the first time. We are efficient and we pride ourselves on being very cleanly, treating your home as if it were our own.

Request a free estimate today to see the difference a door replacement can make in your home.


We are quite pleased with the Milgard windows that Dorian and his crew installed as replacements to our old wooden cased windows. We had 20 windows to replace and Dorian and his crew got the job done in one day!! Therm-O-loc was the lowest bid we received and we are very pleased with the end results. We would be pleased to recommend Dorian's company to anyone who would like to know how happy we are.

Bob Palmer

I have done business with Dorian at Therm-O-Loc for 15 years. He really delivers, consistent, on-time and an all round good guy. I was so happy to have him tear out a terrible window and install one that works for me. He never disappoints.

Mary Franklin

We are very happy with our 14 new Milgard replacement windows. The price, quality of installation, product, cleanliness, consideration of our animals, general demeanor, and thoughtfulness of you and your crew were excellent. We would be happy to recommend you anytime, and hope you can do some other projects for us in the future.

John Klosterman

Therm-O-Loc Showroom