The Source for all your Windows and Doors

Milgard certified to provide the highest quality windows replacement and installation services throughout the Portland metro area.

Dining Room Windows

With the energy-efficiency incentives available now, there has never been a better time to replace those old windows that are letting all the heat out.

Thermoloc does not have a pushy sales staff estimates are always free. All of our proposals are honest and straight forward.

Visit our FAQ for more answers to Frequently Asked Window & Glass Replacement Questions. See what our happy customers have to say on our client testimonials page.

We are happy to pass on our years of knowledge to you and show the value a window installation can do for your home.  Lighting up your living experience like never before.  Every room in you home will be like new.   Let us show you the latest offering from Milgard windows to add instant value to your house.

With our vast experience and family business, it is easy for us to keep overhead costs down.

Thermoloc takes priority in letting you know how your installation is going, continually providing updates to where we are during each install.  Having a two way dialogue before, during, and after the installation process. Give us a call. We will get all of the information we need and then calculate a price for your window replacement.

There is no pressure in regards to our quote, so go ahead and give us a phone call on your own time.  Thermoloc is looking forward to having your window replacement be the next great testimony for our website. If you know anyone searching to windows replaced you can rest assured  Thermoloc is an outstanding choice.  Our testimonies speak for themselves and you won’t be disappointed.

Thermoloc is a family run small business  reflecting a strong commitment to our community.  Offering the Northwest the best window replacement since 1990.