FAMILY-OWNED · SINCE 1979 MADISON, WI · CENTERVILLE, IA LIC. DC-080900045
24/7 STORM LINE (608) 909-9109
Commercial Roof Replacement · WI & IA

Commercial roof replacement, done without shutting you down.

Commercial roof replacement in Wisconsin for flat and low-slope buildings - full tear-off and re-roof in TPO, EPDM, PVC, modified bitumen or standing-seam metal, welded watertight and scheduled around your operations. One project manager, one written scope, minimal downtime.

4.9 on 200+ Google reviewsRead our Google reviewsSee our BBB profileRead our GuildQuality reviewsRead our Yelp reviews·GAF Master Elite·Licensed in 24 states
GAFMaster
Elite
Two-story home with a new shingle roof, from the before-and-after gallery
Ranch home and detached garage with a new red roof
★★★★★ 4.9200+ GOOGLE REVIEWSRead our Google reviewsSee our BBB profileRead our GuildQuality reviewsRead our Yelp reviews
FREE ESTIMATE · NO OBLIGATION

Request a roof assessment

    GAF Master EliteTop 2% nationwide
    FORTIFIED1 of 4 in WI
    BBB A+10+ regions
    InterNACHI100% staff certified
    4.9 / 5200+ Google reviewsRead our Google reviewsSee our BBB profileRead our GuildQuality reviewsRead our Yelp reviews
    Why replace now

    When patching stops paying off.

    A commercial roof past its service life leaks on your schedule, not yours. Here is when a full commercial roof replacement is the better investment - and what a Buckshot re-roof in Wisconsin gives you.

    One welded, watertight system

    We install your new membrane as one continuous, sealed system - flashing, drains and edge metal detailed - so water leaves the roof cleanly instead of finding the next weak seam.

    The right system for your building

    TPO, EPDM, PVC, modified bitumen or metal - we recommend the membrane that fits how your building is used and how long you plan to own it, not what is on our truck.

    No shutdown, no surprises

    We schedule around your operating hours, stage the work in sections, and keep the building watertight every night so your business keeps running through the re-roof.

    Wet insulation gone

    A tear-off lets us pull saturated insulation and repair the deck - the hidden damage a coating or patch just seals in. You start dry, on a sound substrate.

    Manufacturer NDL warranties

    Qualifying single-ply systems are eligible for manufacturer no-dollar-limit warranties - the exact terms laid out in your written proposal, registered on completion.

    Lower energy bills

    A bright, reflective new membrane sends summer heat back instead of soaking it up, easing cooling loads across a flat Wisconsin roof.

    Compared

    TPO, EPDM, PVC and metal, compared.

    There is no single “commercial roof.” Here is the honest side-by-side so you replace with the membrane that fits your building and budget - not our inventory.

    System
    TPO
    EPDM
    PVC
    Metal
    Seams
    Heat-welded
    Glued / taped
    Heat-welded
    Standing seam
    Reflectivity
    High (white)
    Low (black)
    High (white)
    Moderate-high
    Grease & chemical
    Moderate
    Poor
    Excellent
    Good
    Typical lifespan
    15-25 yr
    20-30 yr
    20-30 yr
    30-40 yr
    Best for
    Budget-conscious flat roofs
    Simple ballasted roofs
    Restaurants, chemical exposure
    Sloped commercial buildings

    We install all of them – TPO, EPDM, PVC, modified bitumen, coatings and metal – and recommend the one that fits your building at your free assessment. New to flat roofs? Start with our flat roofing guide and EPDM vs modified bitumen comparison.

    Your options

    Three ways to replace your commercial roof.

    The right path depends on the condition of your membrane, the deck below it, and your budget. We assess, then recommend - and we install all three.

    Aerial view of a Buckshot roof tear-off with new roof decking installed
    ★ Most complete

    Tear-off · Clean slateFull tear-off & replace

    We strip the old roof to the deck, pull any wet insulation, repair the decking, and install a brand-new system. The right call when the membrane and the insulation below it are past saving.

    Aerial view of a blue ranch home with a gray shingle roof

    Over existing · Saves tear-offRecover / overlay

    Where the deck is dry and sound and code allows, we install a new membrane over the existing roof - saving on tear-off and disposal while keeping the building watertight throughout.

    Aerial view of a large ranch home with a new gray shingle roof

    Extend life · Lowest costRestoration coating

    Not ready for a full re-roof? A fluid-applied restoration coating can seal seams and add years of watertight life to a roof that still has structure left.

    Not sure which your roof needs? We measure the roof, check the deck and insulation, and tell you honestly which path pays off - at a free assessment with a written, line-item proposal and no obligation.

    Built for

    The commercial roofs we replace.

    Flat and low-slope commercial buildings across Wisconsin and into southern Iowa - from a single storefront to a full portfolio.

    The systems

    The membranes we re-roof with.

    Once tear-off or recover is decided, we match the membrane to your building, how it is used, and how long you plan to hold it.

    Single-ply membrane roof installed by Buckshot in Wisconsin

    The versatile pickTPO & PVC single-ply

    Heat-welded single-ply membrane - reflective, energy-smart and watertight with no seams to glue. PVC adds grease and chemical resistance for restaurants and industrial roofs.

    Buckshot crew installing a roof membrane in Wisconsin

    The proven valueEPDM rubber

    A durable, time-tested rubber membrane - often the economical choice on large, simple low-slope fields where reflectivity matters less than cost per square foot.

    Standing-seam metal roof by Buckshot General Contracting

    Heavy-duty · Long lifeModified bitumen & metal

    Multi-ply modified bitumen for roofs that take foot traffic, and standing-seam metal for sloped commercial buildings that want a 40-plus year roof.

    BGC Commercial-grade & certified

    Manufacturer-backed, installed by our own crews.

    A commercial roof is only as good as the crew and the welds. Buckshot is a GAF Master Elite and FORTIFIED-trained contractor, family-owned since 1979, licensed in 24 states - and qualifying single-ply systems are eligible for manufacturer NDL (no-dollar-limit) warranties, with the exact terms laid out in your written proposal.

    GAF Master EliteTop 2% of US roofers
    Licensed in 24 statesWI DC-080900045
    BBB A+ AccreditedFamily-owned since 1979
    Our own crewsNo subcontractors
    The install

    How a commercial re-roof goes on.

    A commercial replacement runs around your operations - here’s the process, start to warranty.

    Assessment & moisture scan We survey the roof, scan for wet insulation, check the deck and drainage, and put the findings and the recommended system in writing.
    Tear-off or recover The old roof comes off to the deck and saturated insulation goes with it, or we recover where the deck is dry and code allows.
    Insulation + new membrane Code-compliant insulation goes down, then your new membrane is fastened or adhered and the seams are welded into one continuous sheet.
    Detailing, flashing & warranty Penetrations, drains and edge metal are detailed, the roof is inspected, and every workmanship and manufacturer warranty is registered and handed over.
    From our learning center

    Commercial roofing guides & articles.

    Straight answers on flat and commercial roofing for Wisconsin buildings - membrane comparisons, coatings, maintenance and cost.

    Flat roofingFlat Roofing in Madison, WI: Systems, Costs & Repair

    The flat and low-slope systems we install, what drives cost, and when to repair vs. replace.Read the guide →

    Single-plyTPO vs PVC Roofing: Which Membrane Fits Your Building?

    How the two welded single-ply membranes compare on cost, chemical resistance and lifespan.Read the guide →

    Flat roofingEPDM vs Modified Bitumen: Which Flat Roof Wins?

    Two proven flat-roof systems head to head for Wisconsin commercial buildings.Read the guide →

    Modified bitumenCommercial Modified Bitumen Roofing: Owner’s Guide

    Where multi-ply modified bitumen makes sense, and how it holds up to foot traffic.Read the guide →

    CoatingsRoof Coatings for Small Commercial Buildings

    When a restoration coating buys your commercial roof more years before a full re-roof.Read the guide →

    MaintenanceCommercial Roof Maintenance Programs: Cost & ROI

    Scheduled maintenance that protects the roof you just paid for - built for property managers.Read the guide →

    Building owners trust us

    4.9 stars, pulled straight from Google.

      4.9 / 5 · 200+ verified reviewsRead our Google reviewsSee our BBB profileRead our GuildQuality reviewsRead our Yelp reviews
    Posted on Google Google
    Joy I profile picture
    Joy I
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    When the big storms came through the Madison-area in April 2026, I immediately started looking for a reputable roofer—who also understood the importance of weather-resistant materials that can withstand hail and wind. It didn’t take me long to find Brad from BCG. We had damage that needed to be repaired before the next round of storms came through later that day and Brad had a crew out within hours. Our neighbors also had damage, and when their roofing company didn’t show up, Brad and his crew also took on fixing their damage on the spot. The contracting process was done over email and we were able to clearly understand all of the options available to us. On the day of install, the crew was efficient and fast with their work. But also, mistakes can happen. And what matters to us is not that there’s perfection (because that’s not realistic), but how a contractor deals with a mistake. As they were taking down the tarps when they were finished with the roof, one of our lights next to the garage broke. Brad helped find a replacement online and had it shipped directly to our house! Such great service! All in all, we were very happy with Brad and the service we received from him and BCG. We’ve since recommended their services to several of our friends and neighbors who also had storm damage. While I hope we won’t have to do that again for a long time, we would work with BCG again in a heartbeat!
    Posted on Google Google
    Shelly Ziegler profile picture
    Shelly Ziegler
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    I am extremely pleased with the service Matt Walmer from Buckshot General Contracting (BGC) provided for me during the hailstorm damage in Madison in April. I had just switched insurance companies one year ago and was worried about how much they would cover. Matt assured me everything would be taken care of and had nothing to worry about. True to his word he immediately answered phone calls during off hours even when he was with daughter at volleyball and answering texts in seconds Matt met up with assessor and arrived 20 minutes early. During roof replacement he stopped in 3 times to check the progress and next day he came back to do a walk around to make sure the cleanup was to his standards. I have been so blessed to work with Matt at BGC as my contractor as everything went so smoothly. No problems with my insurance company and I was the first one on my block to get my roof done. I also was telling Matt about some of my neighbors having problems with their insurance and he was willing to look at their paperwork and giving them advice on how to deal with them. I can proudly say I announced to them how good Matt was and gave them his card. Thank you so much Matt for your excellent service and being a great representative for Buckshot General Contracting. These days days it’s hard to find a business that is 100% committed to making sure the customer is their #1 concern. Going to be doing more work and sticking with them as I know it will be top quality.
    Posted on Google Google
    Amy Stephens profile picture
    Amy Stephens
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    We contacted BGC after storm damage and had them completely re-roof and re-side our house, garage, and shed. The entire process was incredibly smooth from start to finish. They were easy to work with, handled all the details, and made what could have been a stressful situation completely worry-free. Our contact, Jayce Kirkland, was outstanding. His professionalism, communication, and courteous demeanor were truly a breath of fresh air. He took care of everything for us and made sure the project stayed on track every step of the way. We couldn’t be happier with the experience and have and would highly recommend BGC to anyone needing roofing or siding work!
    Posted on Google Google
    Rob Anast profile picture
    Rob Anast
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Very customer focused company. Replaced my roof and siding after hail and wind damage 6 years ago. Second hail and damage storm this year and they are my vendor of choice again. In process now to replace my roof and siding.
    Posted on Google Google
    paolo masone profile picture
    paolo masone
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Brad gave me a good price and the roof looks great! The roof was replaced in one day.
    Posted on Google Google
    Doug Cooper profile picture
    Doug Cooper
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    They did an excellent job! Fast, efficient and did a great job cleaning up.
    Posted on Google Google
    christos karampetsos profile picture
    christos karampetsos
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    My family member needed a roof replacement after the recent storm in Madison , Chad came out to inspect the roof and went over the options with us. Full roof replacement and the new roof looks GREAT, they were done with in 2 days and left no mess behind which was very thankful for. Thanks !!
    Frequently asked

    Commercial replacement questions, answered.

    We tear off and re-roof commercial buildings with TPO and PVC single-ply membrane, EPDM rubber, modified bitumen, and standing-seam commercial metal. At your free site assessment we measure the roof, check the deck and insulation, and recommend the system that fits your building, budget and how long you plan to own it.

    If your membrane is near the end of its life, has widespread seam failures, holds ponding water, or the insulation below is wet, repairs stop paying off and a full replacement is the better investment. If the damage is isolated, a repair or restoration coating may buy you years. We tell you honestly which makes sense after the assessment.

    Almost never. We schedule around your operating hours, stage the work in sections, keep the building watertight each day, and coordinate access, deliveries and roof penetrations with your team so your business keeps running. One project manager owns the schedule from start to finish.

    It depends on the square footage, the number of penetrations and the system, but most single-building commercial replacements in Wisconsin run from a few days to a couple of weeks. You get a written schedule up front, and we keep the roof watertight every night.

    Yes. If wind or hail damaged your commercial roof, we document the damage, meet the adjuster on the roof, and manage the claim scope so it covers the full repair or replacement - so your business typically pays only its deductible.

    You get a written Buckshot workmanship warranty, plus the manufacturer’s material or system warranty for the membrane we install. As a GAF Master Elite contractor we can offer enhanced manufacturer warranties that most installers cannot. We register every warranty and hand you the documentation package.

    Where we work

    Commercial roofing across southern Wisconsin.

    Two offices - our Madison, WI headquarters and our Brodhead, WI office - serving commercial property owners across Dane & Milwaukee counties and into southern Iowa.

    ● Wisconsin · Headquarters

    Madison, WI Office

    621 N Sherman Ave, Suite B5
    Madison, WI 53704

    Mon-Sat 8AM-5PM · 24/7 Storm Line

    ● Wisconsin · Brodhead Office

    Brodhead, WI Office

    17312 W Hafeman Rd
    Brodhead, WI 53520

    Mon-Sat 8AM-5PM · 24/7 Storm Line

    Popular service areas
    Free assessment · written proposal · WI & IA

    Let’s look at your roof.

    A free moisture scan and assessment, an honest membrane recommendation, and a written, line-item proposal - scheduled around your operations. Own crews, licensed in 24 states, family-owned since 1979.

    FREE MOISTURE SCAN

    Request a roof assessment

    Free moisture scan & written proposal.

    ★★★★★ 4.9/5 on 200+ Google reviewsRead our Google reviewsSee our BBB profileRead our GuildQuality reviewsRead our Yelp reviews

    Crew available todayFreeInspection1 dayMost installsDeductible onlyOn covered claims4.9 / 5200+ Google reviews

    ●  From the crew that writes the guides

    Done reading? Let us look for you.

    The guides tell you what to check from the ground. We get on the ladder, photograph every facet, and tell you straight: a claim, a repair, or nothing to worry about.

    Free roof inspection

    Three fields. Twenty minutes on site. Zero cost, zero obligation.

    Free · No obligation · No spam

    Rather talk? 608-909-9109