Top-Rated Roofing Contractors in Maryland

Maryland's housing stock is unusually varied, which shapes what contractors you'll need. Baltimore City's dense rowhouse neighborhoods rely on flat or low-slope membrane roofs, typically EPDM or TPO, rather than the pitched asphalt shingles common in suburban counties. Anne Arundel and Harford counties are dominated by Colonial and Cape Cod homes with traditional 6:12 or steeper pitches — well-suited to architectural asphalt shingles rated for the region's wind loads. On the Eastern Shore, Salisbury and the coastal communities deal with higher humidity, salt air near the bay and ocean, and wood rot issues that require material choices rated for coastal exposure.

Contractor licensing in Maryland is handled by the Maryland Home Improvement Commission (MHIC). Every contractor doing more than $500 in home improvement work — including roofing — must hold a valid MHIC license. The license number should appear on every written contract and estimate. Always verify your contractor's MHIC license at the commission's online portal before signing anything. Unlicensed contractors may be cheaper upfront but offer no legal recourse if the work fails or goes unfinished.

On cost: Maryland roofing prices sit above the national average due to higher labor costs in the DC metro and Baltimore markets, strict permit requirements, and the material demands of the climate. A full asphalt shingle replacement on a typical 2,000-square-foot suburban home runs $8,500 to $15,000. Flat roof replacement on a Baltimore rowhouse (EPDM or TPO membrane) runs $6,000 to $12,000 depending on roof size and access. Metal roofing is increasingly popular in coastal and high-wind areas, with installed prices ranging from $15,000 to $28,000.

When evaluating quotes, look beyond the per-square price. Ask about the underlayment specification (synthetic underlayment outperforms felt), the ice-and-water shield coverage (Maryland code requires it at eaves, valleys, and penetrations), and the ventilation plan. Proper attic ventilation extends shingle life by 30–50% in Maryland's temperature swings. A contractor who skips these conversations is cutting corners somewhere.