Commercial and residential roofing across Maryland, DC, Virginia and West Virginia. Free inspection, a written estimate you can actually read, and a warranty on materials and workmanship.
Takes about 30 seconds. We reply the same business day.
A member of our team will call you the same business day to schedule your free roof inspection.
Need us sooner? Call (301) 375-5543.
Roofing is full of jargon. Here is what each option actually is, and the kind of building it is right for. Not sure which one you need? That is exactly what the free inspection is for.
Large flat roofs are covered with a single waterproof membrane instead of individual pieces. We install the three main systems:
Best for: warehouses, retail, offices, apartment buildings, schools.
When a roof reaches the end of its life, patching stops paying off. We strip it down, inspect the wood deck underneath and build it back.
Best for: roofs over ~20 years old, or damage across several areas.
Water rarely enters where the stain appears. We trace the leak back to the real entry point so you are not paying to fix the same spot twice.
Best for: active leaks, missing shingles, ceiling stains after a storm.
Natural materials that can outlast the owner. They need a crew that knows how to handle them — a slate roof installed wrong fails fast.
Best for: historic homes, HOA requirements, high-end properties.
The roof is only half the shell. Siding keeps water out of the walls and is the fastest way to change how the building looks.
Best for: faded or cracked siding, or a full exterior refresh.
A perfect roof still fails if water pools at the foundation. Gutters move it away from the building — cheap protection against big repairs.
Best for: overflowing gutters, basement damp, foundation staining.
We also handle:
Skylight installation Green & vegetative roofing Roof coatings & restoration Preventative maintenance plans Waterproofing Annual roof inspectionsThat is completely normal — most people only deal with a roof once or twice in their life. Book the free inspection and we will tell you honestly whether it is a repair, a replacement, or nothing at all yet.
You should never feel lost in your own project. Here is exactly what happens from the moment you contact us.
We come out, get on the roof and photograph everything — including the parts you cannot see from the ground. No charge, no sales pressure.
You get an itemized estimate in plain language: the materials, the timeline and the price. If a repair will do, we will say so.
Certified crews, OSHA safety standards, protected landscaping and a magnet sweep for nails at the end of every day.
Final walkthrough with you, then your manufacturer and workmanship warranties in writing. We stay reachable long after the invoice.
Commercial membranes, residential replacements and specialty roofs across the region. Drag the cards or use the arrows.
Full tear-off, new cover board and mechanically-fastened membrane over a large flat roof deck.
Heavy-duty membrane lining for a large water containment structure, fully welded and pressure-tested.
New single-ply system with upgraded insulation to improve the building's energy performance.
Complete tear-off and replacement with architectural shingles, new underlayment and ridge ventilation.
Roof replacement paired with new trim and flashing details around every penetration.
Curved standing-seam metal roofing over an engineered timber structure — a precision panel layout.
Restoration of an aging roof, extending its service life without a full tear-off.
Hand-laid natural slate with copper gutter and flashing work on a historic property.
Anyone can put a roof on. What matters is what happens when something needs attention two winters later. We have been working in Maryland, Washington DC, Virginia and West Virginia for over three decades, and most of our work still comes from people who have hired us before.
Itemized and written in plain language, so you know what you are buying before you commit.
We install systems from GAF, Carlisle SynTec, Elevate, Versico and Mule-Hide — which is what makes the manufacturer warranty valid.
A confirmed schedule before we start, and a call if weather changes it. No disappearing crews.
Se habla español. You will always be able to talk directly to someone who can answer your questions.
These partnerships are not decoration. Manufacturers only authorize contractors who install their systems to spec — and that authorization is what allows us to register a full manufacturer warranty on your roof.
Certified as a Minority Business Enterprise and Disadvantaged Business Enterprise with the Maryland Department of Transportation since 2011 — which helps our partners meet their diversity procurement goals on public and private contracts.
Our crews work to OSHA safety standards with fall protection on every job. It protects our people, your property and your liability exposure.
Cool-roof TPO, green and vegetative roofing, and recycling of tear-off material wherever possible — lower energy bills for you, less landfill for everyone.
Global Roofing & Construction Inc. specializes exclusively in roofing for residential and commercial properties. Roofing is not a side line for us — it is the only thing we do, and we have been doing it for over 30 years.
Our expertise covers EPDM, TPO, metal, slate, tile, cedar shake and green roof systems. Our crews work throughout Maryland, Washington DC, Virginia and West Virginia.
Get My Free QuoteLongstanding relationships with Elevate, Carlisle SynTec and GAF give us access to advanced materials and the certified systems that carry real manufacturer warranties.
Our MBE and DBE certifications reflect a commitment to diversity in an industry that has not always had much of it — and they open doors for the partners who work with us.
We hold ourselves to high ethical standards with clients, partners and our own crews. Long-term relationships built on doing what we said we would do.
Green roofing options, reflective cool-roof membranes and recycling of materials wherever we can — delivering roofs that are better for the building and the environment.
Straight answers, no jargon. If your question is not here, just call — we are happy to explain.
No. The inspection and the written estimate are completely free. We get on the roof, photograph what we find and walk you through it. There is no obligation to hire us afterwards.
It comes down to two things: how old the roof is, and how widespread the damage is. A roof in the second half of its life with problems in several areas is usually better replaced — you stop paying for repeat repairs. Isolated damage on a roof with years left is normally just a repair. We tell you which one you actually need and show you the photos behind that recommendation.
It depends on the size and pitch of the roof, the material you choose, how many old layers have to come off, and whether the wood deck underneath needs repairs. Anyone who quotes you a price over the phone without seeing the roof is guessing. Our inspection is free and the estimate is itemized, so you can see exactly what each part costs.
Most residential roofs are finished in one to three days. Commercial flat roofs depend on the square footage and the system being installed — typically anywhere from a few days to a few weeks. Either way you get the schedule in writing before we start, and a call from us if the weather changes it.
Two separate layers of protection. First, the manufacturer warranty covering the materials themselves — from partners such as GAF, Carlisle SynTec, Elevate and Versico. Second, our own workmanship warranty covering the installation. Both are given to you in writing at the end of the project. The exact terms depend on the system you choose, and we go through them with you before you sign anything.
As a rough guide: architectural asphalt shingles 20–30 years, TPO and EPDM membranes 20–30 years, standing-seam metal 40–70 years, and natural slate 75–100 or more. Ventilation, installation quality and how much sun the roof takes all move those numbers — which is why the install matters as much as the material.
Yes. We are fully licensed and insured, our crews follow OSHA safety standards, and we hold MBE and DBE certification with the Maryland Department of Transportation. We can provide certificates of insurance on request — and you should ask any roofer for them before work starts.
Crews working across Maryland, Virginia, West Virginia and the District of Columbia.
Annapolis, Baltimore, Columbia, Silver Spring, Rockville, Bethesda, Frederick, Bowie, Waldorf, Suitland, Howard County, Anne Arundel County, Prince George's County and Montgomery County.
Commercial and residential roofing throughout the District, including flat-roof buildings, row homes and historic properties with slate and metal roofs.
Roof replacement, repairs and commercial membrane systems for residential and commercial properties throughout Northern Virginia and the surrounding counties.
Commercial roofing, industrial membrane systems and residential replacements for properties across the state.
One home or a portfolio of buildings — it starts the same way. We come out, we look, and we tell you honestly what it needs.
Tell us a little about the property and we will take it from there.
A member of our team will call you the same business day to schedule your free roof inspection.
Need us sooner? Call (301) 375-5543.
