Flat and commercial roofing covers a different set of systems than the pitched asphalt shingle roofs on most Hartford houses. Think TPO, EPDM rubber, modified bitumen, and built-up (tar and gravel) roofs on warehouses, office buildings, retail strips, apartment blocks, and additions with low-slope sections. These systems handle water differently than a sloped roof, relying on membranes, seams, and drainage rather than gravity alone, so the installation details matter more than they do on a typical residential job.
We've gathered 23 flat and commercial roofing contractors serving the Hartford area in this category, ranging from small crews that also do residential work to larger firms that specialize in industrial and multi-unit properties.
What to look for before you hire
Ask whether the contractor is a factory-certified installer for the membrane system they're proposing (GAF, Carlisle, Firestone/Elevate, and others require training before they'll back a material warranty). Check that they carry commercial general liability insurance with limits appropriate to your property, and ask for references from similar-scale jobs, not just residential ones. Get a clear scope of work in writing that specifies membrane thickness, insulation R-value, fastening or adhesion method, flashing details at parapets and penetrations, and who handles drainage or tapered insulation for ponding water.
How our scoring works
Our rankings weigh verified licensing, insurance, review consistency over time, responsiveness, and evidence of commercial-specific experience rather than a single star average. For a full ranked breakdown of contractors across all roofing types in the area, see the best roofing contractors in Hartford guide. Details on how we score and verify each listing are on our methodology page.
