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Window Replacement St. Louis, MO

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Window replacement in St. Louis, MO

Let’s talk about our window replacement process!

Gallagher Bros Construction of St. Louis, MO, is proud to be recognized as one of the top window replacement companies in St Louis and surrounding communities. Not only will your house or business gain tremendous energy efficiency, but replacement windows will also dramatically improve the appearance and value of your property.

Our process begins with a FREE in-home consultation with one of our window replacement veterans. Gallagher Bros Construction has access to almost all the major window manufacturers, so there are many options to choose from. Best of all, we stand behind our products and installations with one of the strongest warranties in the St. Louis window replacement business.

Window replacement St. Louis

For over 50 years, Gallagher Bros Construction has been trusted with window replacement by thousands of people that live in St. Louis and surrounding communities. Above all, our reputation and your complete satisfaction regarding your window replacement project are most important to us. We encourage you to check out our 5-star reviews on online platforms like Google, Facebook, Yelp, the BBB, and more.

Just click on the “Get Quote” button on this page, and let’s get started today.

Replacement Windows

Searching for replacement windows?

  • Bay windows
  • Slider windows
  • Double hung
  • Bow
  • Casement

If you don’t see a service listed that you want to request, please call our office today! 

Window Replacement Experts in St. Louis

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History

Providing 5-star roofing, siding, and general construction services in St. Louis, Missouri for over 50 years!

gallagher google reviews 987 13
Dizzy84
Dizzy84
2023-02-18
Rex was excellent to work with! Roof was done quickly and very satisfactory. They do a great job cleaning up afterwards - Janet Hutchinson
William Lampe
William Lampe
2023-02-13
Rex was excellent excellent to deal with, very responsive as was everyone in the company. Recommended them to one of our friends.
Gary
Gary
2023-02-11
Worked with Willie, had them do a new roof, siding, gutters, and trim. The house looks great, and we are very happy the whole process.
David Maxwell
David Maxwell
2023-02-08
Great experience with Gallagher!!!!
J R
J R
2022-12-23
I had Gallagher do a roof inspection, install gutter apron around house, fix flashing on chimney and reanchor fake shutter around all my windows. Samuel and Kenny were both very knowledgeable and went above and beyond. Would highly recommend.
Yvonne Roques
Yvonne Roques
2022-12-18
I'm extremely satisfied with Gallagher Bros for the removal and installation of vinyl siding, soffit, fascia, gutters, windows. Rex was fantastic to work with from beginning to end. The workmanship of all the crews, even clean up, plus customer service was TOPS! I would strongly recommend them to anyone needing this type of work. YMR
Alia Hassan
Alia Hassan
2022-12-14
I highly recommend Gallagher Bros Construction. They replaced my roof, did the siding of my house, and replaced my gutters. You can count on them not only to get the job done, but to go above and beyond your expectations as they did for me. They are also fast paced and professional. Rex is absolutely delightful. He is quick to respond to calls/texts. He is willing to come out to your place and check on his employees work too. If something is not finished, he will make sure that it gets done. - Alia H.
Phil Adams
Phil Adams
2022-12-08
Very professional and they cleaned up my yard better than it was before.if you need a new roof these are the guys to call
Dale Allen
Dale Allen
2022-12-06
We had to have our roof replaced and Gallagher Brothers did a great job and helped us with the insurance company. I highly recommend them.
Jen S
Jen S
2022-12-06
Gallagher Bro Construction replaced our flat roof at our rental property. The project manager Jeremy Mills and their crew did an incredible job! They are hard-working, diligent professional, honest, and just the best quality that you can ask for from the company. Jeremy answered all the questions I had even during his vacation time. You can see how responsible and reliable they are. Jeremy is excellent in communication and easy to work with. Roof replacement is not easy to process. They kept the promise to finish the project on time! They made it easy for me. Their bid was very reasonable.