Rowhome & Flat-Roof Specialists in Baltimore

Yes — Magnum is fully licensed and insured, BBB A+ accredited, and an Owens Corning Preferred Contractor, serving Baltimore and all of Baltimore County and surrounding Maryland.

Because we're based nearby in Towson, we can often reach Baltimore homes same-week for repairs, with 24/7 emergency tarping available when storm damage can't wait.

Always. Roof inspections and estimates in Baltimore are free, no-pressure, and include a clear explanation of what we find and what we recommend.

Cost depends on the size, pitch, and material of the roof and the condition of the decking underneath — which is why we never quote a Baltimore roof over the phone. We inspect on-site and give you an itemized estimate covering tear-off, deck repair, underlayment, ventilation, materials, and cleanup, with no surprise add-ons.

In most cases, yes. If the decking and the majority of the roof are sound, a targeted repair to the flashing, valley, or affected section is the honest and cost-effective fix. We will tell you plainly when a repair will not hold and a replacement is the better value.

Yes. Storm and wind damage claims are a specialty. We inspect and photograph the damage, document it in a full report, and coordinate directly with your adjuster so the approved scope reflects the actual damage to your Baltimore home.

Most standard residential replacements are completed in one to three days, including full tear-off, deck inspection, modern underlayment, and cleanup. You do not need to be home, and we walk the property with you at the end.

Yes — flat and low-slope rowhome roofing is common work for us, including membrane systems and parapet flashing specific to Baltimore City rowhomes.

Yes — we're experienced in the kind of roofing and repair work funded by Baltimore City DHCD programs like the Emergency Roof Repair Program. See our DHCD rehab page for details.