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TRUSTED BY DERWOOD, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon1.3k+
    Verified roofing services reviews

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Avatar for W E Griffin Roofing
W E Griffin Roofing
4.7(
77
)
Asphalt Shingle Roofing - Install or ReplaceInspection - RoofingAsphalt Shingle Roofing - Repair+26 more

Serving Derwood, MD and surrounding areas

Approved

In business since 1931

Free estimates

Warranties offered

"I had received a recommendation from a friend re: Griffin Roofing, so I included them among the three contractors I contacted for estimates. From the start I was impressed by the professionalism and no-nonsense approach of Matt Hoffman, the individual who came to inspect my roof and provide an estimate. My existing roof was 20 years old and the plywood sheathing was damaged by moisture intrusion in several areas (visible from the attic). Unlike one of the other contractors, who tried to "sell" me by starting at $30,000 "but if you sign today we can do it for $20,000," Matt was very low key and matter of fact. He pointed out some of the visible issues on the roof and advised me of potential issues once they exposed the plywood sheathing. He provided best case and worst case estimates so there would be no surprises if they had to replace the plywood sheathing. He explained the work schedule and everything that would be included in the price (flashing, debris removal, plywood cost). Matt sent us a link to review the type of shingles and color. Since he impressed us with his professionalism, we trusted his judgement and asked for his recommendation on the shingles. We are extremely pleased with the final result! Matt's crew arrived on schedule and the foreman introduced himself and his crew. They appeared to work almost non-stop in the high July heat and cleaned up all debris before they left each day (we had much of the sheathing replaced, so it was a multi-day job). We were so impressed at the quality of their workmanship in spite of the conditions. Matt kept in contact during the job and after completion. He promptly sent the invoice - there were no surprises, of course - and we were able to pay online via credit card. All in all, we had a great experience with this company and their employees!"
Response time6 hrs
Response rate100%
40 neighbors recently requested a quote
Avatar for Central Exteriors
Central Exteriors
4.5(
901
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - RepairTraditional Tile Roofing - Install or Replace+13 more

Serving Derwood, MD and surrounding areas

Approved

In business since 1956

Free estimates

Emergency services offered

"We bought our house in 2012 in Montgomery County, MD. The roof was past its design life when we bought the place, and although there were no signs of leaks, we decided to put a new roof on the house in 2016 - better to get it done before problems arise than after. Central was great. I forgot to move my car out of the driveway the morning they were scheduled to start work but they managed to make things work anyway. My handyman happened to stop by while they were working and told me it looked like they knew what they were doing, which was comforting. The real proof, though, is my roof has been on the house for 4 years, including the wettest year on record here in the DC area, with no signs of leaks anywhere in the house. This may not seem impressive - roofs aren't supposed to leak. However, both my sister and parents have had new roofs put on their houses in the intervening years - they live several States away so could not use Central Exteriors. Both had leak issues after having the new roofs put on and had to have the roofer come back out to fix things - in my sister's case it took several return visits and some major work to make things right. Central Exteriors were price competitive with other roofing companies I consulted with, and gave me a 50 year warranty on the shingles and workmanship, which nobody else offered. I would not hesitate to hire them again. Very pleased."
Preparing the East side of the building for new cedar shakes.
Drone footage of roof install.
Finished look.
Roofers Working
Shake Roof

+12

Response time1 day
Response rate100%
6 neighbors recently requested a quote
Avatar for Presidential Exteriors LLC
Presidential Exteriors LLC
4.7(
173
)
Asphalt Shingle Roofing - Install or ReplaceTraditional Tile Roofing - Install or ReplaceAsphalt Shingle Roofing - Install or Replace - For Business+26 more

Serving Derwood, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"These guys are the best! They seriously care about their customers and really strive to make sure they deliver a great product. They were on time, quick, and clean. My new roof looks fantastic, and we are really glad we went with this local company. Buying a roof is not a "fun" expense, but I really feel like we got our money's worth: a quality new roof in 1 day, and then new trim capping the next day. They even installed new bathroom exhaust vents and HVAC exhausts. Our house looks brand new. You might get a cheaper rate elsewhere, but these guys do not skimp on quality of product, 50-year warranty, or craftsmanship. They even come back to inspect and follow up to make sure we are completely happy with the services provided! Talk about great customer service! The whole experience was so easy. The salesman/inspector was not pushy, and provided a very reasonable quote for what we needed. They also replaced all our rotted wood in the roof/trim."
Newly installed roof
Windows & Garage Door Replacement
Finished product with brand new siding.
Newly installed roof
Windows & Garage Door Replacement

+44

Response time1 day
Response rate100%
33 neighbors recently requested a quote
Avatar for Noble Exteriors.com
Noble Exteriors.com
4.8(
184
)
Asphalt Shingle Roofing - Repair

Serving Derwood, MD and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"Mr. Lee was on time, came prepared with samples of products in range of prices, left literature, walked the roof, politely offered suggestions but left final decision to us. Mr. Lee also answered all questions and returned phone calls."
Recommended by99%of homeowners
Avatar for Unicorp Home Energy Services
Unicorp Home Energy Services
4.9(
630
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - Install or Replace - For BusinessTraditional Tile Roofing - Install or Replace+1 more

Serving Derwood, MD and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"I had my roof and shutters replaced in early April. They helped me at every step of the way. I am very pleased with their attention to detail and neatness as well as discovering and fixing problem areas. 100% excellent service at a very reasonable price."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

Response time1 day
Response rate100%
11 neighbors recently requested a quote
Avatar for Certified Roofing
Certified Roofing
4.8(
930
)
Asphalt Shingle Roofing - RepairFlat, Foam or Single Ply Roofing - RepairNatural Slate Roofing - Repair+2 more

Serving Derwood, MD and surrounding areas

Approved

In business since 1984

Free estimates

Warranties offered

"Certified roofing did very well. They were the first to respond to my Angi query. Tim was smart, quick, and had an excellent work ethic. We had a slight miscommunication on what the job entailed, which is being cleared up as we speak. I would definitely hire them again."
Start to Finish
During the Process
During the Process
Finished CertainTeed
61 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Certified Roofing
Certified Roofing
4.8(
930
)
Asphalt Shingle Roofing - Install or ReplaceMetal Roofing - Install or ReplaceAsphalt Shingle Roofing - Repair+6 more

Serving Derwood, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1984

Free estimates

Emergency services offered

"Sales agent was VERY thorough in explanation of roofing materials and venting system, installation and warranties for the product. He did a complete inspection of roof, inside attic and outside. The receptionist was also very responsive in setting up the appointments for roof an gutter installation. Roof looks great!"
Roof Project in Maryland!
Siding Project in Vienna Virginia!
Synthetic Slate
Synthetic Slate
Armed Forces Day

+245

Response time4 hrs
Response rate100%
18 neighbors recently requested a quote
Avatar for Roofing Pups, Roofing & Siding
Roofing Pups, Roofing & Siding
4.7(
70
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - Repair

Serving Derwood, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1994

Free estimates

Credit card accepted

"Informative and friendly first meeting, complete with detailed photos of the entire roof and an explanation of the process, followed by 1-day installation of a new roof, with excellent workmanship and a hardworking crew."
Roof Install
ROOFING PUPS
ROOFING PUPS
ROOFING PUPS
PROJECTS

+4

Response time1 day
Response rate93%
210 neighbors recently requested a quote
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Roofing questions, answered by experts

The best way to know if your roof can support solar panels is to hire a structural engineer. They’ll look at your roof and approve the design of your solar panel system or suggest changes. The best roofing for solar panels is made from strong materials like asphalt shingles and metal, but tile and gravel will work. Softer materials like thatch or temporary structures are not a good fit.

A spray foam roof lasts 20 to 30 years if installed and maintained correctly. Spray foam roofs should be recoated every 10 to 15 years to maintain the UV protection and waterproof surface of the foam material. The longevity of spray foam roofing will depend on the thickness and density of the foam, the protective coating, and how well it’s maintained.

No, you should not close or cover your gable vents in the winter. While it might seem logical to block cold air, heating your home creates hot air that rises and can cause condensation in the attic. If the vents are covered, this moisture becomes trapped, creating an ideal environment for mold and mildew. Keeping the gable vents open ensures proper ventilation, which helps dry out the attic, maintain even temperatures, and prevent moisture-related damage.

You can put new shingles over old shingles, but most municipalities only allow for two layers of shingles before you have to rip off the old roof and start fresh. In some areas, only a single layer of shingles is allowed due to the weight a bundle of shingles adds to your structure. In most cases, it’s a good idea to remove your old shingles before you install new shingles, especially if you suspect that a roof leak may have compromised the decking underneath.

Gable vents are more common in older homes built before the 1970s. Homes built after this era use ridge vents or soffits, but you can sometimes find homes with both gable and ridge vents. Gable vents can have a purely aesthetic purpose, while ridge vents hide in the roof shingles so air can flow under the roof while keeping the attic dry.

The Derwood, MD homeowners’ guide to roofing services

From average costs to expert advice, get all the answers you need to get your job done.