Gallagher Bros Construction is one of the leading roofing contractors in St. Louis, MO. We are also a siding company and windows company with 50 + years in business in St. Louis. We are licensed and insured in Missouri and Illinois. We use only the best materials for every job. Our team includes industry experts from multiple trades. We have been locally owned and operated in St. Louis for decades!
Our goal for every job is to exceed our customers’ expectations and make the service worthy of a five-star online recommendation. We know that your home or business is likely your most important financial investment, and you can count on us to complete each project with the highest quality and care. For this reason, thousands of satisfied St. Louis roofing customers have chosen Gallagher Bros Construction for their St. Louis roofing, siding, and window replacement needs.
EXCELLENT Based on 638 reviews Posted on Mikhaila KippenbrockTrustindex verifies that the original source of the review is Google. Gallagher did a great job on our roof. Curtis was great to work with and made the process smooth. Will definitely come back if we need work in the future!Posted on Judy DeschlerTrustindex verifies that the original source of the review is Google. I dealt with Gallagher Bros. Construction for the 2025 damage to my home. My contact was Willie Wyninegar and I cannot say enough wonderful things about him. He was onboard with every aspect of my job. Very thorough and professional. Always courteous! They are an outstanding company to deal with and would recommend them to any one.Posted on David RussoTrustindex verifies that the original source of the review is Google. Great company, finished my roof in a timely manner with no nails left around the house!! Rob and Curtis were awesome to deal with!Posted on Nicholas ManascoTrustindex verifies that the original source of the review is Google. Gallagher Bros. did all the repairs to the exterior of my home after the March 2025 hail storm in Oakville. Brett was great to work with. He was thorough and the bid they gave us was very reasonable. They worked with our insurance company throughout the process and all the work was completed to our satisfaction. Highly recommend them if you need any work done to your home. They were great!Posted on josh BartnickTrustindex verifies that the original source of the review is Google. The team at Gallagher made sure everything was 100% to our satisfaction and made sure all the insurance stuff was handled right. Kris and the rest of the guys make sure the job is done right and at a fair price.Posted on MjadeTrustindex verifies that the original source of the review is Google. They built my roof amazingly! They are very friendly and fast working while also doing it the correct way, Bradyn was amazing would definitely have them fix any more roofing/siding needs in the future!Posted on Adam BizzleTrustindex verifies that the original source of the review is Google. Gallagher Bros were great to deal with. They did a great job on my siding and roof install and knocked it out quickly. Brett was very helpful and transparent while helping me navigate through my insurance and scope of work needed to get the job done. I would recommend them to anyone looking for a quality install.Posted on Donna PoelkerTrustindex verifies that the original source of the review is Google. We are very pleased with Gallagher Bros. Service, from beginning to end. Brett did a wonderful job of explaining what our insurance covered, and what services Gallagher Bros. Would provide. The work was done well. I highly recommend this company.Posted on David DTrustindex verifies that the original source of the review is Google. Great craftsmanship and skill. Handled all the paperwork with the insurance company. Did exactly what they said they would and at the agreed price. No problems whatsoever. Couldn't be happier.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Check out our homepage for valuable feedback and satisfied client reviews. We understand that successfully building relationships with our clients is vital to our livelihood. As a result, excellent customer satisfaction has been our primary key to success.