Flat and low-slope roofs cover most of New Britain's commercial buildings, multi-family properties, and additions with membrane systems like TPO, EPDM rubber, and modified bitumen, along with older built-up (tar and gravel) roofs that still show up on downtown storefronts and older warehouses. This category brings together 9 contractors who work on these systems, separate from the crews that focus mainly on residential asphalt shingles.
Commercial roofing has different failure points than a house roof. Ponding water, seam separation on membranes, flashing around HVAC curbs and drains, and parapet wall detailing cause most of the leaks we see reported in this area. A contractor who mainly does shingle tear-offs may not have the training or the right materials on hand to install or repair a membrane system correctly, so it's worth confirming that a company actually runs commercial crews and carries manufacturer certifications (GAF, Firestone, Carlisle) rather than treating flat work as a side job.
Before hiring, ask about warranty terms (material warranty versus workmanship warranty are not the same thing), how they handle drainage and insulation as part of the install, and whether they carry commercial general liability coverage sized for the property type. Get a written scope that specifies membrane thickness, fastening method, and flashing details, not just a lump-sum price.
Our scores weigh licensing, insurance, years doing commercial work specifically, and how contractors respond to real service situations, so you can compare these 9 businesses on more than star ratings alone. For the full ranked list across all roofing work in the area, see the best roofing contractors in New Britain guide, and read our methodology for how we score and rank every contractor.
