The Metro East region of Illinois encompasses the communities on the eastern side of the St. Louis metropolitan area, spanning St. Clair and Madison counties. Major communities include Belleville, Fairview Heights, Collinsville, O’Fallon, Swansea, and Shiloh. The region offers a mix of historic downtowns, established mid-century neighborhoods, and rapidly growing modern subdivisions, particularly in communities near Scott Air Force Base.
Gallagher Bros Construction has been serving Metro East homeowners since 1973 and is fully licensed and insured in the State of Illinois, providing the same quality of service east of the river that we are known for throughout St. Louis.
The Metro East region experiences some of the most severe weather in the greater St. Louis area, with frequent hail storms, high winds, and heavy rainfall during the spring and summer months. This weather pattern creates a steady demand for both storm damage repairs and proactive roof replacements throughout the region. The area’s housing diversity, from Belleville’s historic homes to Shiloh’s modern subdivisions, requires a contractor with broad expertise across residential and commercial applications. As a company licensed in both Missouri and Illinois, Gallagher Bros Construction provides seamless service to Metro East homeowners, handling everything from initial inspection through insurance claims coordination and final installation.
Gallagher Bros Construction offers comprehensive exterior services throughout Metro East Illinois, including roof replacement, roof repair, storm damage restoration, siding installation, gutter systems, gutter guards, and window replacement. We are fully licensed and insured in Illinois, and every project is backed by our 5-year workmanship warranty in addition to manufacturer material warranties.
Whether you need an emergency roof repair after a storm or you are planning a full roof replacement, our team provides honest assessments, transparent pricing, and quality craftsmanship on every job. We work directly with insurance companies on storm damage claims and guide homeowners through the process from initial inspection to final installation.
Gallagher Bros Construction is a family-owned roofing and exterior contractor founded in 1973, serving the St. Louis metro area for over 50 years.
Yes. Every project is backed by a 5-year workmanship warranty, in addition to applicable manufacturer material warranties.
Yes. As a full-service storm restoration contractor, we assess the damage, document it, and coordinate directly with your insurance company to streamline the claims process.
We serve St. Louis County, St. Charles County, and Metro East Illinois, with an additional service area in Springfield, MO.
Yes. Gallagher Bros Construction is licensed and insured in both Missouri and Illinois. A certificate of insurance is available on request.
EXCELLENT Based on 650 reviews Posted on Google VICKIE VALENTINETrustindex verifies that the original source of the review is Google. Gallagher Bros. did all the replacements to my roof, siding, gutters, and downspouts from the storm 3/14/25. Willie Wyninegar was my contact person. What a great guy. Very personable and knows his stuff. They dealt with the insurance company which was very helpful.I would highly recommend them. Their work is great quality and absolutely worth going with them. Vickie ValentinePosted on Google Sandy SilveyTrustindex verifies that the original source of the review is Google. Posted on Google Trina CornellTrustindex verifies that the original source of the review is Google. We had severe hail damage to our roof and siding from the spring storms of 2025. Gallagher Bros. Construction was recommended to us as a great company to use. We truly had a great experience working with Rex and the work crews that came to replace our roof and siding. Both projects, with the roof in November and the siding in February, were completed within the span of two days. Both jobs were done extremely well! The best part about working with Gallagher is their work with the insurance companies. They worked on our behalf to help us get the maximum amount of money we needed from our insurance to pay for the work completed. Everything was handled professionally from start to finish - and we could not be happier with the work completed! We will definitely be recommending Gallagher Bros. Construction to anyone that needs their services - and we would love to work with them again if the need arises!Posted on Google Joe ChickTrustindex verifies that the original source of the review is Google. Rob and the crew at Gallagher bros did an excellent job replacing my roof. I appreciated their attention to details, quality work, and clean up efforts. I would definitely recommend them to any homeowner!Posted on Google Jerry BehanTrustindex verifies that the original source of the review is Google. Bob and team with Gallagher Bros were friendly to withvthroughought the roofing and gutter replacement process.Posted on Google Catherine JochensTrustindex verifies that the original source of the review is Google. I can’t say enough great things about Gallagher and Bob Halstead. Bob is very personable, knowledgeable and straight up. I was pleased with the amount of coverage we got from insurance due to hail damage, and Bob was instrumental in assisting with that. All in all, I give them my highest recommendation, and we are so pleased with our new roof!Posted on Google Rex WashburnTrustindex verifies that the original source of the review is Google. What a great experience! Bob and Gallagher Bros made a new roof effortless. They were partners the entire way and the quality of work was perfect!Posted on Google Kevin walkerTrustindex verifies that the original source of the review is Google. Great company to work with. Very easy process to have roof replaced after storm damage. Bob had great customer service and kept us informed during the whole process.Posted on Google Jacob PlankTrustindex verifies that the original source of the review is Google. Great workVerified 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