South County is a broadly defined area encompassing several unincorporated communities in southern St. Louis County, including Lemay, Concord, Green Park, and areas surrounding South County Center. The region features a wide range of housing built primarily from the 1950s through the 1990s, with ranch homes, split-levels, and traditional two-story homes being the most common styles. South County’s affordable housing, quality schools, and suburban convenience make it one of the most populated areas in the county.
Gallagher Bros Construction has been a trusted roofing contractor serving South County, MO (zip codes 63128, 63129) and the surrounding St. Louis County area since 1973. As a locally owned and operated company with over 50 years of experience, we understand the specific roofing challenges that homeowners in South County face and deliver solutions built to last.
The sheer volume of mid-century and late-century homes in South County creates consistent, high demand for roofing services. Many homes in the area are on their second or third roof, and the cumulative effects of decades of St. Louis weather take a toll on roofing systems. South County’s proximity to river corridors and lower-lying terrain can also contribute to moisture-related roof issues, while seasonal hail storms regularly generate insurance claims throughout the area.
With over five decades of experience in the St. Louis region, Gallagher Bros Construction brings the expertise and local knowledge that South County homeowners need. We are Licensed and insured in Missouri, and our team includes industry professionals from multiple trades who ensure every project meets our high standards for quality and craftsmanship.
We believe every job should be worthy of a five-star recommendation, which is why thousands of satisfied customers across the St. Louis area have trusted us with their roofing, siding, and window needs.
We provide a full range of exterior services to South County homeowners, including:
Roof Replacement: Complete tear-off and installation using premium materials from top manufacturers, backed by our 5-year workmanship warranty.
Roof Repair: Targeted repairs for leaks, missing shingles, flashing failures, and storm damage to extend the life of your current roof.
Storm Damage & Hail Repair: Expert damage assessment, thorough documentation, and direct coordination with your insurance company to streamline the claims process.
Siding Installation: Durable vinyl, fiber cement, and engineered wood siding options that protect and enhance your home’s exterior.
Gutter Systems & Gutter Guards: Seamless gutter installation and leaf protection systems to manage water flow and prevent foundation damage.
Window Replacement: Energy-efficient window installation that improves comfort, curb appeal, and long-term utility savings.
If your South County home needs a roof inspection, repair, or full replacement, contact Gallagher Bros Construction today. We serve homeowners throughout the 63128, 63129 zip code areas and surrounding neighborhoods. We provide free, no-obligation estimates and honest assessments so you can make informed decisions about your home. Call (314) 646-8015 or fill out the form on this page to schedule your appointment.
Nearby service areas: Mehlville, Oakville, Crestwood, Arnold, St. Louis Counties
EXCELLENT Based on 641 reviews Posted on Adam GoldmeierTrustindex verifies that the original source of the review is Google. I recently had the pleasure of working with Gallagher Bros Construction, and I can’t recommend them enough. From start to finish, the entire process was seamless and professional. The team was incredibly punctual, knowledgeable, and took the time to explain every detail of the project. It’s rare to find a company that combines such high-quality craftsmanship with genuine customer care. They left the job site spotless and the new roof looks fantastic. If you are looking for a roofing company that is honest, efficient, and does top-tier work, look no further than Gallagher Bros. They truly go above and beyond!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 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