Martin Exteriors installs, repairs and maintains commercial roofs across Delavan, from the shops and plants on the industrial side of town to the storefronts on Walworth Avenue and the businesses along Highway 50. We work on flat and low-slope systems and standing seam metal, and every job starts with a free inspection and estimate. Call (815) 624-6278. Someone answers 24/7.
Delavan’s Commercial Buildings and Their Roofs
Delavan is one of Walworth County’s manufacturing and industrial centers, so a lot of the roofs here are big and nearly flat: plants, shops and warehouses with membrane roofs, rooftop units and long runs of edge metal. Downtown is different. Older storefront buildings share walls, drain to interior drains or scuppers, and have parapets where the roof meets the brick. Around Delavan Lake there are resorts and restaurants that can’t close during the summer season, and condo and townhome buildings run by associations.
Each of those roofs fails in its own place. On plant roofs it’s most often open seams and flashing around rooftop equipment. On downtown buildings it’s the parapet walls and the drains. On lake-area buildings it’s the low-slope sections tied into steeper roofs. We check all of it and give you photos.
Flat Roof Inspections With a FLIR Thermal Camera and Moisture Meters
Water under a flat roof membrane spreads long before it shows up as a leak inside. We scan commercial flat roofs in Delavan with a high-resolution FLIR i64 thermal camera (640×480) to find wet insulation and hidden moisture, then confirm each spot with a Tramex moisture meter. The detail is fine enough to catch problems that a quick visual walk, or a lower-resolution thermal scan, will miss, and it gives you clear documentation for insurance claims.
Mule-Hide Certified, Warranty Eligible Contractor
Martin Exteriors is Mule-Hide certified as a Warranty Eligible Contractor for EPDM and heat-welded TPO and PVC roof systems. Mule-Hide reviews a contractor’s work and training before granting eligibility, and only eligible contractors can register Mule-Hide system warranties on commercial roofs. That means your flat or low slope roof can be backed by both our workmanship and Mule-Hide’s system warranty.
Mule-Hide Warranty Eligible Contractor for EPDM, TPO and PVC
EPDM
A rubber membrane for low slope roofs. Mule-Hide says EPDM resists hail, UV rays, ozone, extreme temperatures and foot traffic.
Source: mulehide.comTPO
A white reflective membrane. Mule-Hide says TPO protects against UV rays, extreme temperatures, rain, snow and fire, and helps lower rooftop and indoor temperatures.
Source: mulehide.comPVC
Mule-Hide calls PVC the toughest single ply option, resistant to punctures, fire and UV rays, and a top choice where a roof is exposed to grease, oil or chemicals.
Source: mulehide.comMule-Hide system warranties are available on the commercial roofs we install, once Mule-Hide approves the warranty application. Call (815) 624-6278 to talk through your roof.
Our certifications
Warranty Eligible Contractor
Warranty Eligible Contractor
GAF Master Elite is a registered certification mark of GAF. Contractors enrolled in GAF certification programs are not employees or agents of GAF, and GAF does not control or otherwise supervise these independent businesses. Contractors may receive benefits, such as loyalty rewards points and discounts on marketing tools from GAF for participating in the program.
Delavan Weather Is Hard on Commercial Roofs
NOAA’s Storm Events Database counts 67 hail reports, 102 severe thunderstorm wind reports and 17 tornadoes in Walworth County from 2010 through 2025. Big commercial roofs take that wind across a wide, open surface. On July 11, 2011, thunderstorm gusts estimated at 80 mph damaged roofs at Lake Lawn Resort on Delavan Lake, and on June 22, 2024, an EF-1 tornado began on the north end of the lake. After a storm, call for a free inspection. We walk the whole roof, photograph what we find and check the edges and flashing where wind gets in first.
Systems We Install and Repair
- Single-ply membranes: TPO, EPDM and PVC, installed without torches or hot asphalt
- Modified bitumen repairs and replacement
- Standing seam metal for commercial buildings
- Roof coatings that can add years to an older roof when the membrane is still sound
We compare the membranes in detail on our TPO and flat roofing page, and at the inspection we tell you which one fits your building.
Finding Water Before It Shows Inside
On a big plant or warehouse roof, a small opening can wet a wide patch of insulation before anyone inside sees a drip. If we think that has happened, we survey the roof with a Teledyne FLIR i64 thermal camera, check each suspect area with a Tramex Roofing Inspector Kit, and leave the membrane uncut. The report shows the wet areas on thermal images, so the repair is sized to the damage. More on commercial roof repair and maintenance.
Repair, Maintenance or a New Roof
Many flat roof problems are local, like an open seam or a failed boot around a vent, and a repair is the right call. Wet insulation across large areas, or a membrane at the end of its life, points to replacement. In between, our maintenance plans come in three tiers, from drain cleanouts with a written report up to maintenance repairs, replacement planning and a moisture survey. For a lake-area business that can’t shut down in July, a maintenance visit in spring or fall is often how you avoid a mid-season leak.
Recent Commercial Roofing Work
Martin Exteriors re-roofed an entire condo association, nine buildings with new shingles in one day, roughly 300 squares, with each homeowner picking their own shingle color. On a two-building church campus, our crew tore off and re-shingled about 150 squares, with the goal of a finished roof in time for Sunday services. See the condo association roofs and the church roof project.
Travel and Scheduling in Delavan
Delavan is about 40 minutes from our office at 11704 Main St in Roscoe by I-43, with exits at County X (Exit 17) and Highway 50 (Exit 21), so we reach the industrial side of town, downtown and the lake roads easily. We plan tear-offs and noisy work around your hours, your deliveries or your guests.
Delavan Commercial Roofing FAQ
Do you work on plant and warehouse roofs in Delavan?
Yes. We inspect, repair and replace flat and low-slope roofs on plants, shops and warehouses in Delavan, including TPO, EPDM, PVC and modified bitumen, and we install standing seam metal on commercial buildings.
Can you work around our hours or our summer season?
Yes. We schedule tear-offs and noisy work around business hours, deliveries or guests, which matters for resorts and restaurants around Delavan Lake that are busiest in summer.
Do you work on the storefronts downtown?
Yes. On the older buildings along Walworth Avenue, we check the parapet walls and the drains first.
Do you offer maintenance plans for commercial roofs in Delavan?
Yes, in three tiers, described under Repair, Maintenance or a New Roof above. Call (815) 624-6278 for pricing.
How far is Delavan from your office?
About 40 minutes from 11704 Main St, Roscoe, IL 61073, by I-43. Someone answers (815) 624-6278 24/7.
Is the inspection free?
Yes. The commercial roof inspection and estimate are free, and you get photos of what we found.
