Public Records Check
- Registration-Based Pennsylvania doesn't license roofing contractors; instead it requires a statewide contractor registration. We treat this check as met rather than penalise it, but we haven't independently verified this company's registration - confirm it directly with the state before hiring.
- Missing Corporation Our automated search didn't find a registered business entity for GSM Roofing with the Pennsylvania Secretary of State. That doesn't mean the company isn't legitimate. Many roofers operate legally as sole proprietorships, which don't require registration, and a registered business can be filed under a different name, formed in another state, or created too recently for us to match. To confirm how the business is structured, ask the contractor or search the Pennsylvania Secretary of State directly.
- Business Address GSM Roofing's listed address at 345 South Reading Road, Brownstown, PA 17522 appears to be a business address. This means the company operates from a real, locatable address rather than a mailbox or PO box, which can make it easier to reach them or resolve issues. Many roofers legitimately work from a home address, so this doesn't speak to the quality of their work, license, or insurance.
- 5 Credentials GSM Roofing holds these manufacturer certifications: CertainTeed ShingleMaster, Owens Corning Preferred, Elevate Licensed Contractor, Carlisle Perfection Award, NRCA Membership. These show the company met a manufacturer's program requirements and may offer manufacturer-backed warranties, but they aren't independent quality audits. You can confirm current status with the manufacturer.
- Excellent Ratings Across the platforms we identified for GSM Roofing (Google, CertainTeed), the blended average is 4.7 out of 5, which we label Excellent. This is a plain average of public customer ratings, not a RooferWatch score. A high average reflects past customers' experiences, not a guarantee of yours, so read the underlying reviews and weigh them yourself.
We verified 4/5 public records for GSM Roofing. The more of a company's record you can check, the more informed your hiring decision.
Contact Info
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Phone
This is either a business landline or VoIP number (not a mobile number).(800) 532-7663
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Alternate Phone
This phone number belongs to an iPhone, not a landline, so both calling and texting is supported.(443) 252-1647
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Primary Address
345 South Reading Road, Brownstown, PA 17522
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Owner Email
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Website
gsmroofing.com
- Socials
Company Description
GSM Roofing has been installing, replacing, and maintaining roofs in Pennsylvania, New Jersey, Delaware, and Maryland for nearly 80 years. The company specializes in commercial and specialty roofing, offering services including new construction, roof replacement, single-ply roofs, built-up roofs, shingle roofs, roof coatings, preventive maintenance, repairs, inspections, and emergency repairs available 24/7/365. GSM Roofing handles specialty materials including historical slate, tile, and metal roofs, as well as green roof systems designed to reduce energy consumption. The company provides free commercial roof inspections using drone and infrared technology, curb installs, roof snow removal, and building envelope products. GSM Roofing is family-owned and operated for three generations and serves Lancaster County, Chester County, and Cecil County with a strong local presence across its four-state service region.
Services Offered
- Commercial Roofing InstallationInstallation of new roofing systems on commercial buildings, including flat or low-slope roofs using materials like TPO, EPDM, or metal.
- New Construction RoofingInstalling roofing systems on newly built structures as part of the initial construction process.
- Roof ReplacementRemoving an old or failing roof system and installing a new one, typically when repairs are no longer cost-effective.
- Single-Ply RoofsInstallation and repair of membrane roofing systems like TPO or EPDM, commonly used on flat commercial and residential roofs.
- Built-Up RoofsInstallation and repair of multi-layer tar and gravel roofing systems, a traditional flat roof option.
- Shingle RoofsRoofing systems using overlapping shingles as the primary weather-resistant covering, available in asphalt, wood, or composite materials.
- Roof CoatingsApplying protective liquid coatings to extend roof life, improve reflectivity, and seal minor cracks without full replacement.
- Preventive MaintenanceRegular inspections and minor repairs to roofs and exterior elements to catch problems early and extend their lifespan.
- Roof RepairsFixing localized roof damage such as leaks, missing shingles, flashing issues, or deteriorated sections without full replacement.
- Emergency RepairUrgent repairs for storm damage, leaks, or structural issues that require immediate attention to prevent further property damage.
- Roof InspectionsProfessional evaluation of roof structure, materials, and condition to detect leaks, deterioration, or needed repairs.
- Historical Slate RoofingInstallation and repair of authentic slate tiles on period homes, preserving original materials and architectural character while maintaining weather protection.
- Tile RoofingInstallation or repair of clay or concrete tile roofing, which offers longevity, fire resistance, and a distinctive aesthetic for Mediterranean or Spanish-style homes.
- Metal RoofsInstallation of standing-seam or metal panel roofing systems that offer longevity, fire resistance, and energy efficiency for residential or commercial properties.
- Roof MaintenanceRegular upkeep such as cleaning gutters, removing debris, checking seals, and minor repairs to extend roof life and prevent problems.
- Green Roof SolutionsInstallation and maintenance of vegetated roof systems with plants and soil layers that improve insulation, manage stormwater runoff, and extend roof lifespan.
- Curb InstallsInstallation of roof curbs, structural frames that support and seal equipment like HVAC units, skylights, or vents to the roof surface.
- Roof Snow RemovalClearing accumulated snow and ice from roofs to prevent structural overload and water damage from melting.
- Building Envelope Products
- Specialty RoofingInstallation or repair of non-standard roofing systems for unique architectural features or specialized building requirements.
Credentials
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CertainTeed ShingleMaster
A CertainTeed ShingleMaster is a contractor with at least one crew member who has passed CertainTeed's Shingle Applicator training program (SARP), a hands-on technical certification that tests installers on proper… Read more
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Owens Corning Preferred
An Owens Corning Preferred contractor has earned the mid-tier designation in Owens Corning's contractor network by demonstrating installation quality, business stability, and customer satisfaction. This status… Read more
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Elevate Licensed Contractor
Elevate is the commercial building-products brand formerly known as Firestone Building Products, rebranded after Holcim acquired the business in 2021. It is a major manufacturer of low-slope commercial roofing systems -… Read more
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Carlisle Perfection Award
Carlisle SynTec Systems maintains detailed records of every Authorized Applicator's warranty claims history - when a warranted Carlisle roof develops a problem, the manufacturer knows which contractor installed it. The… Read more
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NRCA Membership
The National Roofing Contractors Association (NRCA) is the leading trade association for the U.S. roofing industry. Established in 1886, it sets industry standards, publishes the technical and safety guidance that… Read more
Company Info
- License Number
- ROOF3761915
- License Type
- Roofing Contractor
- Contractor ID
- 91154000
- Address Type
- Commercial
- Multi-State Company
- 4 states Yes
- Website Age
- 29.6 years old
Sample of Permits Pulled
| Date | Project | Location | Value | Status |
|---|---|---|---|---|
| Roofing Roof per approved scope Permit #250001567 | 400 Steel Way, Lancaster, PA, 17601 | - | issued | |
| Roofing Reroof per approved scope (700 williamson way - thomas hall) Permit #240001023 | 600 College Ave, Lancaster, PA, 17603 | $172,863 | issued | |
| Roofing Roof per approved scope Permit #240000704 | 140 E Orange St, Lancaster, PA, 17602 | $84,118 | issued | |
| Commercial Roof per approved scope Permit #230001606 | 223 E Chestnut St, Lancaster, PA, 17602 | $97,003 | issued | |
| Construction alteration Roof replacement on roofs 1, 3, 4, 5, 6 & 7. attached scope of work and size non-seal plans. approved by jo jm Permit #66041 | 131 N 6th St, Reading, PA, 19601 | $45,645 | issued |
Showing 5 recent permits from public records. This list is incomplete and may be out of date - verify any permit directly with the issuing city or county building department before relying on it. Did you spot any incorrect information here? Please let us know.
Inspections and Violations
U.S. Department of Labor data-
Jul 23, 2024 TAMAQUA, PA Insp #347636763
Reviews and Reputation
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Avg. Rating
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Google
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CertainTeed
Customer reviews of GSM Roofing present mixed experiences. Several reviewers praise the company's craftsmanship and professionalism, with one organization commending the quality restoration work on a historic roof project. Multiple customers describe the team as courteous, professional, and friendly, with some noting employees went above and beyond on job sites. One reviewer reports the company does good work but notes difficulty reaching them. Another customer expresses enthusiasm about a green roof project. However, one reviewer expresses concern after observing three GSM employees without masks in a store despite posted mask requirements, stating this behavior would discourage them from hiring the company. Overall, reviewers tend to highlight positive experiences with work quality and employee demeanor, though accessibility and communication appear as potential concerns for some customers.
Review Signals Over Time
By sheer volume of Google reviews (a measure of how much feedback a firm has gathered) GSM Roofing ranks 148th of the 176 roofers we track across Pennsylvania, ahead of about 16% of them. Over the past year it has pulled in 1 review - the most recent 8 months ago - for a rate of roughly 0.2 reviews per month, which is slower than approximately 97% of the other Pennsylvania roofers. Its 4.4-star average rating sits below the Pennsylvania median of 4.9 stars. The owner responds to 95% of reviews, which is above the typical Pennsylvania roofer’s rate of 60%.
Service Areas
- Brownstown, PA
- Lancaster County, PA
- Chester County, PA
- Cecil County, MD
- Pennsylvania
- New Jersey
- Delaware
- Maryland
