Commercial Roofing in South Jersey
M&J Roofing installs and repairs commercial roofing across South Jersey from our Blackwood and Turnersville locations, serving warehouses, retail centers, hotels, and industrial buildings in Camden, Gloucester, and Atlantic counties. We specialize in low-slope commercial systems — TPO, EPDM, modified bitumen, and metal — built to handle the wind exposure of coastal Atlantic County and the freeze-thaw cycles common throughout South Jersey. Every project starts with a free roof inspection and a written scope, so you know what you’re paying for before work begins.
Commercial Roofing Services We Offer in South Jersey
M&J Roofing handles the full scope of flat and low-slope commercial work, from emergency leak repair to full tear-off and replacement. Our most-requested services are TPO membrane installation, EPDM rubber roofing, modified bitumen, roof coatings, and commercial metal roofing. We also offer preventive maintenance contracts that include twice-yearly inspections, seam checks, drain clearing, and minor repairs — the most cost-effective way to extend a commercial roof past its rated lifespan. For property managers facing active leaks, we provide 24-hour emergency roof repair across the region.
Contact Us for Expert Roofing Services
Phone: 856-341-9746
Address: 26 Evergreen Ave, Blackwood, NJ 08012
Posted on Google Richie RidolfiTrustindex verifies that the original source of the review is Google. M&J Roofing just replaced our Roof, Siding and Gutters..From top to bottom, the experience was awesome, reasonably priced, and the work was done properly and timely. They worked during the snow storms this year and still managed to get done quickly. Definitely recommend them!Posted on Google Julie TwomeyTrustindex verifies that the original source of the review is Google. Honest, reliable and professional. They did a great job with my roof and new skylights. Highly recommend!Posted on Google George MerryfieldTrustindex verifies that the original source of the review is Google. By far the best you must try them out !!!Posted on Google Paul HestonTrustindex verifies that the original source of the review is Google. I had my roof replaced by MJ Roofing and Siding, and I couldn’t be more pleased with the entire experience. I want to thank Michael Iannelli and Brandon Keller for the outstanding craftsmanship my roof received. Customer service has always been something I’ve taken pride in throughout my life, and it’s clear that MJ Roofing shares that same commitment. From start to finish, the process was smooth, professional, and handled with care. A special thank you as well to Judy in the office—she was an absolute pleasure to work with. She was helpful, responsive, and made everything easy on my end. If you’re looking for quality work and a company that genuinely values its customers, I highly recommend MJ Roofing and Siding.Posted on Google david drachTrustindex verifies that the original source of the review is Google. Brandon of MJ roofing was outstanding to work with our metal roofing installed everything like they said they would do.very professional.Price was fantastic craftsmenship impeccable. We are very satisfiedPosted on Google Tim AbraldesTrustindex verifies that the original source of the review is Google. Good communication and great service. They made repairs and replaced a shed roof for the Woodbury Heights Lake Association. Project site was left clean and the roof looks great. Thanks for a job well done.Posted on Google Michael SmithTrustindex verifies that the original source of the review is Google. I was referred to this company from my brother in law and he spoke how good it was. Good is an understatement, from the initial call to the day of completion, everything and everyone was great, professional and frankly just perfect. Eventually will need a new roof and not in no rush but when the time comes, they will be the only company I will trust.Posted on Google John VaranoTrustindex verifies that the original source of the review is Google. always on point and excellent work! highly recommend
Industries and Properties We Roof Across South Jersey
We work with property managers, facility directors, and building owners across South Jersey’s main commercial corridors. That includes retail strip centers along the Route 70 and Route 38 corridors through Cherry Hill and Mount Laurel, hospitality and casino properties in Atlantic City and Brigantine, industrial buildings near the I-295 and New Jersey Turnpike interchanges in Pennsauken and Logan Township, and medical, office, and warehouse buildings throughout Gloucester County. Atlantic City hotel and motel roofs are a specialty — coastal exposure means flashing, parapet caps, and HVAC curb seals fail faster than inland, so we inspect those areas first.
What a Commercial Roof Costs in South Jersey
A commercial roof replacement in South Jersey typically runs $4 to $14 per square foot installed, depending on the system, deck condition, and how much tear-off is needed. TPO and EPDM membranes sit at the lower end ($4–$8 per sq ft), modified bitumen mid-range ($5–$10), and standing seam metal at the top ($10–$14+). For a 10,000 sq ft warehouse roof, that puts a typical replacement between $40,000 and $140,000 before accessories like skylights, drains, or insulation upgrades. We provide written, itemized estimates after an on-site inspection — never over the phone.
Why Property Owners Across Camden, Gloucester & Atlantic Counties Choose M&J Roofing
M&J Roofing has been licensed, bonded, and insured in New Jersey since 2002, and we’re a GAF-certified contractor with installed projects across more than 60 South Jersey municipalities from Audubon to Woolwich. Our crews are full-time employees — not day labor — which matters on commercial jobs where mid-project staffing changes cause leaks. We pull permits, coordinate with property managers around business hours, and stage materials to keep tenant parking and loading docks accessible. Manufacturer warranties on TPO and EPDM systems run 15 to 25 years; our workmanship warranty backs that up.
FAQ SECTION
Q: What is the average cost of a commercial building roof? A: A commercial roof replacement in South Jersey averages $4–$14 per square foot installed. TPO and EPDM membranes typically cost $4–$8 per sq ft, modified bitumen runs $5–$10, and standing seam metal runs $10–$14 or more. A 10,000 sq ft warehouse roof usually totals $40,000–$140,000 before insulation upgrades or skylight work.
Q: What is the 25% rule for roofing? A: The 25% rule is a guideline used by commercial roofing contractors and insurance adjusters: if more than 25% of a roof is damaged, replacement is generally more cost-effective than repair. Below that threshold, targeted repairs and a roof coating are usually the better investment. The rule isn’t a building code — it’s a financial benchmark based on repair cost relative to replacement.
Q: How can I tell if a commercial roofer is being honest with me? A: Ask for a written, itemized scope of work before signing anything, verify the contractor’s New Jersey Home Improvement Contractor (HIC) registration number, and confirm they carry general liability and workers’ comp insurance specific to commercial work. Honest commercial roofers will let you keep the old material for inspection, photograph the deck after tear-off, and never demand full payment upfront. Avoid contractors who refuse on-site inspections or only quote prices over the phone.
Q: What is the best commercial roofing material for South Jersey? A: For most low-slope commercial buildings in South Jersey, TPO and EPDM membranes are the most cost-effective choices — both handle the region’s freeze-thaw cycles well and reflect heat in summer. Standing seam metal is the longest-lasting option (40–50+ years) and is the right call for coastal Atlantic County buildings exposed to direct salt air. Modified bitumen remains a strong choice for buildings with heavy foot traffic from HVAC service.
Q: How long does a commercial roof last in New Jersey? A: A properly installed commercial roof in New Jersey typically lasts 20 to 30 years for TPO and EPDM membranes, 20 to 25 years for modified bitumen, and 40 to 50+ years for standing seam metal. Lifespan drops sharply without preventive maintenance — twice-yearly inspections, seam checks, and drain clearing can add 5 to 10 years to any commercial system.
Get a free commercial roof inspection across South Jersey — call 856-725-5759 or request an estimate online