Get matched with top window and door contractors in O Fallon, MO

"Everything went great! We had an issue with one of the installed windows and they came back out and fixed it at no charge."

"We needed balancers replaced on two large windows. Brett did a great job explaining what work was needed to repair our windows. Work was completed in a timely and professional manor. It also cost less than I anticipated. I highly recommend Hyperion Glass Company."

"Very professional yet down to earth. Best price I found with great quality work. Answered every question I had and gave me a great sense of comfort throughout the whole process. Very time efficient. Replaced 14 windows, added a bay window, replaced 2 sliding glass doors, and replaced an existing garage door with a 4-panel sliding glass door. Only took 2 and a half days!"

"My new windows look great! Very professional to deal with, work was done on time and for a fair price. Would recommend to anyone looking for replacement windows!"

"Excellent job. He was on tine and quickly repaired our stuck front door. I will save his name for any future handyman jobs needed"

"STL Design & Build constructed a gorgeous deck off our kitchen and replaced windows and installed door to deck. The workmanship was excellent - well established and talented crews, built on time, and right on budget. Very impressed with the workmanship and also the quality of the materials (from wood framing, decking to windows and door. Very enjoyable experience. Great, great company. Reliable, honest, and professional."

"Jake did a phenomenal job installing our front door. He was very neat, exact, and professional. We have used Mr. Handyman several times and are always impressed with their work."

"The owner was quite knowledgeable and gave a very reasonable estimate for the installation of eight windows. The work crew were professional, friendly and did an excellent job, including cleaning up when finished. I highly recommend them!"

At Sane Windows and Doors, we believe in making the window and door buying experience as easy and transparent as possible. That’s why we stand out with superior customer support—from the moment you contact us to long after your project is complete. Unlike traditional sales-focused window companies, we skip the high-pressure pitches and in-home visits. With our no-sales-pitch appointments and simple online pricing, you can explore your options, get a quote, and make decisions—all from the comfort of your home. It's window shopping made easy, without the hassle.

"H&F Exteriors was awarded a contract in July 2023 to replace porches of my daughter's house (front - partial and back - complete) in St Louis. When initially meeting with H&F's Project Manager, Phillip Raphael, I was impressed with his understanding of what we wanted done. It was clearly reflected in the scope of their bid (compared to other contractors) as well as the schematics which used existing pictures of the porch areas with overlays of planned construction. Less than a week after contract award, he set up a group text with himself, me, my daughter and his Production Team. I have dealt with many contractors - both personally and professionally - and must say the communication throughout the entire project was as good as anything I have experienced. Within a month, the Production Team assumed the lead and provided regular updates on material delivery and construction timing. Phillip continued to touch base periodically as well to ensure things were moving forward satisfactorily. Since I live out-of-town from where the work was being done, he and his Team coordinated everything with my daughter and kept me in the loop on progress. During construction, there were a couple issues my daughter brought to their attention and they were quickly addressed to her satisfaction. At the end of the job, a punch list of a few remaining items was completed, all extra materials were removed and the jobsite was cleaned up without any follow-up needed by my daughter. Needless to say, we were extremely pleased with H&F and will definitely be including them on bids for any future exterior improvements."