Everything Maryland & Virginia Homeowners Need to Know About Their Roof

Most residential roof replacements in Maryland and Virginia are completed in a single day. A standard 2,000–3,000 sq. ft. home with a straightforward gable or hip roof typically takes 6–10 hours from first tear-off to final cleanup. Larger homes, complex rooflines with multiple valleys and penetrations, or projects requiring significant deck board replacement may extend to two days.

Our crews start at 7 AM and don't leave until the site is fully cleaned — including a magnet sweep for nails in the driveway and yard. Materials are delivered the evening before build day so nothing is sitting in your driveway overnight unexpectedly. See the full day-by-day homeowner prep guide in our roof replacement process walkthrough.

In the Maryland and Virginia markets JDH serves, a full architectural shingle replacement on a typical single-family home runs $12,000–$22,000 depending on square footage, roof pitch, complexity, and decking condition. Homes with multiple dormers, steep pitches, or extensive valley systems are at the higher end. Metal roofing systems run $22,000–$45,000+ for the same homes.

The most significant variable most homeowners don't anticipate is decking — if moisture has deteriorated OSB or plywood beneath the shingles, board replacement is billed per sheet and can add $1,500–$4,000 to the project. This is why a pre-replacement thermal inspection matters: it lets us price the deck work accurately before the job starts, not as a surprise on build day. For detailed pricing by scope, see our MD/VA roof replacement cost guide. Financing options are available for qualifying projects.

A forensic roof inspection is a documented, multi-layer evaluation of the entire roofing system — not just a visual walkover of the shingle surface. It includes FLIR thermal imaging of the deck, an attic moisture and ventilation audit, close-up photography of every failure point, and a written root cause assessment that explains why the failure occurred, not just where.

The difference matters because most roof failures originate below the shingle surface — in the flashing, the underlayment, the deck, or the ventilation system. A standard visual inspection misses these entirely. Our forensic inspection process is documented in detail, including what separates it from a standard inspection, a sample report you can review before scheduling, and our professional inspection standards. The inspection is free for homeowners considering JDH for their project.

In most Maryland and Virginia jurisdictions, a full roof replacement requires a building permit. Calvert, Charles, St. Mary's, Anne Arundel, and Prince George's Counties in Maryland all require permits for full replacements — and several require a county inspection of the completed work before the permit is closed. Routine repairs (replacing a few shingles, resealing flashing) typically don't require permits, but rules vary by county and scope.

JDH pulls all required permits and manages the county inspection process as part of every replacement project — this is included in your contract price, not billed separately. Be wary of contractors who suggest skipping permits to save money: an unpermitted replacement can void your homeowner's insurance, create issues at resale, and leave you without recourse if workmanship problems emerge. Read our contractor selection guide for the full list of questions to ask before hiring.

Owens Corning's Platinum Preferred warranty is a 50-year non-prorated, transferable warranty that covers both materials and labor — but it's only available through contractors who have earned Platinum Preferred status. Fewer than 1% of roofing contractors in the country qualify. If a non-Platinum contractor installs OC shingles, the maximum available warranty is typically a 10-year limited labor warranty — a significant downgrade from the full system protection.

JDH is an Owens Corning Platinum Preferred contractor. Every eligible replacement project we complete includes the full 50-year system warranty registered in the homeowner's name. The warranty is also transferable to the next owner, which adds documentable resale value. See our full OC Platinum overview, the OC vs. GAF system comparison, and our warranty documentation page for the coverage specifics.

Call (443) 241-7356 immediately — we dispatch same-day for active leaks, 7 days a week. While you wait: place buckets to catch dripping water, move valuables and electronics away from the affected area, and take photos and video of every affected surface (ceiling, walls, flooring) for your insurance claim. Do not attempt to access the roof yourself during rain or wind.

Document everything before you touch anything. Insurance adjusters need photographic evidence of the pre-mitigation condition. Our team will deploy an emergency tarp to stop further water entry, photograph all damage for your claim file, and provide you with a written emergency report within 24 hours. Follow our full emergency roof leak triage guide for step-by-step documentation instructions, and our insurance claim guide to understand how the claim process works from first call through final settlement. You can also check Maryland Storm Watch to track active weather events affecting our service area.