Gallagher Bros Construction

We hold no one or two-star review text for Gallagher Bros Construction. That is not the same as there being none — it means our capture did not reach any. The rating breakdown above is Google’s own count and is the number to go on.

• job5
• siding replacement2
• quality installation2
• nice team2
• attentive staff2
• choosing2

10 more of the 10 reviews we hold text for, most recent first. We do not hold every review Google has.

• 5 out of 5Joan Acker4 months ago

  Lance Obermeyer was my Sales Representative from Gallagher Bros. Very informative right down to the last detail. Lance is a very personable, down to earth kinda guy and explained every detail that I was having a issue with. Not only did my …

  Google cut this review short. The full text is on their Google profile.

• 5 out of 5Mike Olejniczak4 months ago

  You all did an excellent job of siding our house and wrapping our garage door. Tony Cox is an outstanding representative of your business. Diago and his crew were very professional in the installation. Matt spent 2 hours inspecting the job and doing some pick up. You started the job ahead of our expectations and then exceeded our expectations. We are referring Gallagher to our family, neighbors and friends. Thank you, very much. Mike & Tia

• 5 out of 5Zane5 months ago

  Gallagher Bros killed it! I was jumping through hoops to find a company to come do a residential shingle job in St. Charles, and Curtis got it done! Kinda dumb how hard it is to find good roofing people, but they were crazy fast for a fair price. Super nice guy and team to work with

  Reply from the business

  Zane it was our pleasure to work with you, Danke Schon!

• 5 out of 5Connor S.6 months ago

  I cannot speak highly enough about Gallagher Bros. They did a fantastic job with my roof. The team was very professional and a pleasure to work with. They did a great job helping me work with the insurance process. The roof itself was …

  Google cut this review short. The full text is on their Google profile.

  Reply from the business

  Connor it was great to work with you!

• 5 out of 5Matt McCormick6 months ago

  This past fall was especially stressful with all the weather damage. Gallagher took a lot of that stress away. Prompt, honest, great quality and a fair price. They helped us through the process with their knowledge and attention. I spoke …

  Google cut this review short. The full text is on their Google profile.

  Reply from the business

  Thanks Matt, this was a fun one!

• 5 out of 5River6 months ago

  Fantastic experience with Gallagher Bros. The owners Jake and Curtis are stand up guys and will go the extra mile to make sure the job gets done right. Would highly recommend.

• 5 out of 5Jeremy Rother6 months ago

  After our roof was damaged in the tornado that came through St. Louis on May 16, 2025. I talked to a couple roofing companies before choosing Gallagher roofing. Curtis at Gallagher Made us feel like a high priority …brought in a great team and did the job all in one day with an exceptional cleanup at the end! I was super paranoid about nails being left In the driveway after a previous experience with another roofing company, but I didn’t find anything like that with Gallagher. Thanks for a job well done, and I will use them again in the future.

  Google cut this review short. The full text is on their Google profile.

  Reply from the business

  This project was a unique one and we are happy we could get it done for you, thanks Jeremy!

• 5 out of 5Mikhaila Kippenbrock6 months ago

  Gallagher really helped me out in a pinch with my window. Curtis and Todd were great to deal with, really excited for their new office in O'Fallon.

  Reply from the business

  Anytime Mikhaila! Enjoy the sun and fresh air from that new window!

• 5 out of 5debra wibbenmeyer6 months ago

  Hello...I had my roof an siding done at Gallagher Construction Bro. An really love the great job.Brett Keenan was my Field Estimator he was very knowledgeable about everything. Everytime I called the office the girls were very nice and friendly.All the workmen were very proper an greAt workers. Thank you Gallagher Brothers Great job

  Reply from the business

  Brett's the best, we are happy to be of service Debra!

• 5 out of 5Michael Durian7 months ago

  Pleasant experience with Curtis

  Reply from the business

  Thank you for the review Mr. Dzurian!

Storm-damaged roof? Here's what to do before you sign anything. Last night's hail brought damage across the St. Louis region — and it brought out-of-state storm chasers right behind it. Before you let anyone on your roof, here's what we tell our neighbors: Don't sign anything at the door. Reputable roofers don't pressure homeowners on the doorstep. Call your insurance company before you call any contractor. Check the address. Real St. Louis roofers have St. Louis offices. We have two; one in South County and one in St. Charles County. Gallagher Bros has been the local choice since 1973. Free hail damage inspections, no pressure, and we'll walk you through your insurance claim like we've done for thousands of St. Louis families. No commitment. Just a real local roofer telling you what we see.Apr 28, 2026Call now

• Licensed

  “…We are licensed, insured, and set only the highest…”

• Bonded

  “…County and O’Fallon Licensed, bonded, and insured in Missouri and Illinois…”

• States years in business

  “…Louis, Missouri. With over 50 years of experience in the roofing…”

• States a founding year

  “…Louis-area homes since 1973. We’re family-owned, licensed…”

• Free estimates

  “…Springfield, MO Careers Contact Get A Free Quote Gallagher Bros Construction Roofing…”

• Family owned

  “…We’re family-owned, licensed in Missouri and Illinois…”

Their site also states: insured, warranty offered.