How Much Does a Roof Replacement Cost in Maryland?

November 3, 2026

Most Maryland homeowners pay between about $8,000 and $25,000 to replace an asphalt shingle roof. Two of the guides below put the typical job near $11,000 to $14,000. Large, steep or complicated roofs, and premium materials like metal or slate, can run $30,000 to $45,000 or more.

Those figures blend recent Maryland cost data from Angi, Modernize, Fixr and This Old House. They're market ranges, not AHI Roofing & Remodeling of MD prices. Two houses on the same street can get quotes thousands of dollars apart, so this guide walks through what moves the number.

How much does each roofing material cost?

Material is the biggest choice you control. Here's the typical installed price per square foot of roof in Maryland:

Basic asphalt shingles: $2.50 to $3.75
Architectural shingles: $4.50 to $11
Flat roofs (rubber, TPO or PVC): $4.50 to $9
Metal: $8.50 to $20
Slate: $14.50 to $30

Architectural shingles are the most common choice for a new roof today. They're thicker than 3-tab, hold up better in wind, and cost far less than metal. On recent AHI jobs, homeowners chose GAF Timberline Ultra HDZ and TAMKO Titan architectural shingles.

What a new roof costs in your part of Maryland

Prices run a bit higher in the Baltimore and Washington suburbs than in western Maryland or on the Eastern Shore. For a 2,000-square-foot shingle roof, typical ranges look like this:

Annapolis and Anne Arundel County: $13,500 to $23,000
Baltimore and Columbia: $13,000 to $22,000
Prince George's and Montgomery counties, including Bowie: $14,500 to $25,000
Hagerstown and western Maryland: $11,000 to $19,000

Roofers price by the "square," which is 100 square feet of roof. Your roof is bigger than your floor plan because of slopes and overhangs. A one-story home usually has more roof than a two-story home with the same living space.

Where does the money go?

Roofers laying underlayment over the roof deck before new shingles go on

Labor is close to 60% of the price. The rest is materials, tear-off, disposal and anything found under the old shingles.

Tear-off: About $1 to $5 per square foot, or roughly $1,000 to $5,000 for a typical home.
Decking (roof boards): Spot repairs to rotted boards often run $500 to $1,000. Replacing every board on a 3,000-square-foot roof can cost $6,500 to $9,400.
Permits: Usually $150 to $500 when the job needs one.
Disposal: Dumpster and dump fees are usually built into the quote.

Decking is the line that surprises people, because nobody can see it until the shingles come off. On our jobs, the crew strips the roof to the deck, inspects it, and secures or replaces boards before anything new goes on. One customer review on our site sums it up: "We knew we had a leak but we didn't realize how many sheets of plywood were rotted. They were able to show me with pictures."

A good quote says up front how extra decking is priced, so there's no surprise mid-job. Want one in writing? Request a free estimate.

What a full roof system includes

A new roof is more than shingles. On a recent Millersville job, our crew installed ice and water protection at vulnerable areas, synthetic underlayment, starter shingles, ridge vents, new pipe collars and new chimney flashing. They also covered the air conditioner during tear-off and ran a magnet over the yard for loose nails at the end. You can see the full write-up in our recent Maryland projects post.

Ask every roofer to list these parts line by line. A low quote often leaves one out.

Can you skip the tear-off to save money?

Maryland allows up to two layers of shingles, so sometimes a new layer can go over the old one. We usually don't recommend it. A roof-over hides the boards underneath and adds weight, and you can't fix what you can't see. With Maryland's wind and rain, a full tear-off is the safer bet.

Do you need a permit?

It depends on your county and the job. In Prince George's County, replacing shingles with no structural repair needs no permit, but replacing roof sheathing (the boards) needs a permit and plans. Anne Arundel, Howard and other counties, and towns with their own permit offices, set their own rules. Your contractor should know the rules where you live and pull any permit the job needs.

What makes a quote higher or lower

Roughly in order of impact:

Roof size. More squares, more cost.
Material. Metal can cost close to double architectural shingles.
Pitch. Steep roofs need more safety gear and go slower.
Complexity. Valleys, dormers, skylights and chimneys add flashing and labor.
What's underneath. Rotted decking, extra layers or poor ventilation add cost.
Add-ons. New gutters, gutter guards or attic insulation often get done at the same time.

How to compare roofing quotes

Get two or three quotes. Then check each for the same things:

Same scope. Full tear-off? Same shingle line? Same underlayment and ventilation?
Decking price per sheet, in writing.
Warranty. The manufacturer's coverage and the contractor's are different. AHI Roofing & Remodeling of MD is a GAF Master Elite contractor, so qualifying roofs can carry GAF's Golden Pledge warranty. On a recent Middle River roof, that meant lifetime material coverage and 30-year labor coverage.
License and deposit. Maryland contractors need an MHIC license, and deposits are capped at one-third of the price. More on that in how to choose a roofer.

Ways to make a new roof more affordable

Financing. Many homeowners spread the cost over monthly payments. AHI Roofing & Remodeling of MD offers financing.
Insurance. If a storm caused the damage, your policy may pay for some or all of it. Wear and tear isn't covered. Start with our storm damage repair page.
Repair first, if it makes sense. A younger roof with one bad spot may only need a roof repair.

Get a real number for your roof

Online ranges get you in the ballpark. A real quote needs someone on the roof.

AHI Roofing & Remodeling of MD has been replacing roofs in Maryland since 2007. We give free estimates and show you photos of what we find. Learn more about our roof replacement services.

Frequently asked questions

Is a metal roof worth the cost in Maryland?

It depends on how long you'll stay. Metal lasts longer and handles wind well, but it can cost close to double what architectural shingles do for the same roof. If you plan to stay in the home for decades, the longer life can pay you back. If you might sell in a few years, architectural shingles are usually the better value.

How much does it cost to replace a townhouse roof in Maryland?

Townhouse roofs are small, so the total is lower. The price per square foot can be higher, though, because setup, safety and disposal costs don't shrink with the roof. Many Maryland row homes also have flat roofs, which use rubber, TPO or PVC at about $4.50 to $9 per square foot. Shared walls and neighbors' roofs can add flashing work.

How do I know if my roof needs replacing instead of repairing?

Age, widespread wear and repeat leaks are the big signals. If shingles are curling or bald across the whole roof, or you've paid for several repairs in a few years, replacement is usually the better spend. One damaged area on an otherwise sound roof can often be repaired. Our repair vs. replace guide covers this in detail.

How long does a roof replacement take?

Most single-family roofs take one to three days once work starts. Weather, roof size and surprise decking repairs can stretch it. The longer wait is usually getting on the schedule and getting materials delivered, so plan a few weeks ahead if you can. Winter has fewer good installation days, so expect more weather delays then.