Maryland: 301.854.2764 Virginia: 703.752.6121
Siding Services

Siding is one of the most important aspects of your home’s exterior: it affects curb appeal, energy efficiency, and structural integrity. Certified Inc. will help spruce up your home with beautiful, efficient new siding.

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Gutter Services

Durable, clean gutters are essential to any home. They keep your home protected and prevent water damage. Whether you need new gutters installed or your damaged gutters replaced, count on Certified Inc. for quality gutter installation and replacement services.

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Roofing Services

A great roof not only adds protection to your home but also aesthetic and market value. Our team provides expert installation and replacement. Whether you need a new roof or full replacement, we will take good care of the roof over your head.

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Window Services

Windows keep your home protected, provide natural light, and offer significant aesthetic potential. For a cost-effective, energy-efficient solution, consider vinyl windows. Our experienced window installers will help achieve your dream look with whatever window style you desire.

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Trim Services

Why does exterior trim matter? Trim provides a subtle accent that ties your home’s siding, windows, doors, and other structural elements together. We can install, replace, refinish, or restore your trim for an immediate beautification boost to your home.

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SIDING
Siding Services

Siding is one of the most important aspects of your home’s exterior. It affects curb appeal, energy efficiency, and structural integrity. Certified Inc. will help spruce up your home with beautiful, efficient new siding.

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GUTTERS
Gutter Services

Durable, clean gutters are essential to any home. They keep your home protected and prevent water damage. Whether you need new gutters installed or your damaged gutters replaced, count on Certified Inc. for quality gutter installation and replacement services.

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ROOFING
Roofing Services

A great roof not only adds protection to your home but also aesthetic and market value. Our team provides expert installation and replacement. Whether you need a new roof or full replacement, we will take good care of the roof over your head.

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WINDOWS
Window Services

Windows keep your home protected, provide natural light, and offer significant aesthetic potential. For a cost-effective, energy-efficient solution, consider vinyl windows. Our experienced window installers will help achieve your dream look with whatever window style you desire.

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TRIM
Trim Services

Why does exterior trim matter? Trim provides a subtle accent that ties your home’s siding, windows, doors, and other structural elements together. We can install, replace, refinish, or restore your trim for an immediate beautification boost to your home.

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Trusted Roofing Contractors Serving Northern Virginia, Maryland & Washington, DC

We are a family owned and operated business. When you choose to work with Certified Inc., you can be confident our home improvement contractors and employees will put years of home improvement experience to work for you to transform your house into a home of comfort and beauty.

Providing Residential, Commercial & Industrial Roofing & Remodeling in Northern Virginia, Maryland & Washington, D.C. for Over 25 Years

Certified Incorporated provides homeowners, businesses, organizations, and commercial contractors with exterior home improvement and remodeling services in Northern Virginia, Washington, DC, and Maryland. We specialize in:

  • Roofing
  • Siding
  • Gutters
  • Windows
  • Exterior Trim

Certified Incorporated maintains an excellent standing with the Better Business Bureau and is an active member in several local business associations such as the National Roofing Contractors Association. We pride ourselves on maintaining successful partnerships with numerous industry leaders in the Maryland, Washington, DC, and Virginia area. Certified Inc. is a Licensed Contractor in Maryland, Virginia, and Washington, DC.

Roof Replacement in the MD, DC & VA Area

No matter your roofing need, we can help! Whether you need a roof replacement, addition, or installation, we have you covered. We use only first-rate, durable roofing products, so rest assured you’ll receive the highest quality roof for your home.

While damage from natural causes is beyond your control, roof damage can be avoided with proper maintenance. Regardless of your issue, we’ve probably seen it (and fixed it!) before.

Commercial Roofing in MD, DC & VA Area

Our 30 years of roofing service gives us the experience to handle any commercial project, be it replacement, installation, or repair. We specialize in flat roofs for commercial and industrial buildings. Certified Inc. has been recognized by quality roofing materials manufacturers like Certainteed, Firestone, Sarnafil, IB Roof Systems, and Mulehide for our outstanding commitment to quality, training, application, and product knowledge.

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The Certified Way
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We are happy to schedule an appointment for your free estimate.

*Please note that we do not do repair work.

Testimonials

From the initial project meeting with us to the final installation by the crew this was as smooth and professional experience I have had with…

Tom at Certified was professional and helpful. He gave us the time and attention we needed. Job was done well and looks great. Price was…

Tom was extremely nice and easy to work with. He promptly came out to give us an estimate and gave us some great recommendations. His…

Because of the March 2nd 2018 storm, our roof had lots of broken shingles. So I had the roof inspected and found out that entire…

Repairs went smoothly and results looks great. Certified actually was able to schedule and complete the work before the original estimated date! This is the…

My roof was wind damaged after the March 2018 storm. I called Certified and a number of other contractors for an inspection and estimate. Turns…

I am very, very pleased. Juan Carlos arrived on time and went right to work. The job was completed on time and the yard was…

The Certified team did a great job on the roof, and the clean up was excellent. They arrived on time and completed the work in…

Arrived on time, actually scheduled earlier than expected, completed fast. Workers were prompt, energetic, and courteous. Cost was competitive, middle of the road, but you…

Impressive performance from start to finish. Made initial contact after viewing Angies List reviews. Diana, (very efficient and personable throughout the process) took my information…

Very well. Tom is very responsive and informed. Workman came on time and were very polite. The back-office (shout out to Jody) is great.

I called and they said to not let anyone else touch the roof or it would void the warranty. They came and inspected the roof.…

Very professional. There some disconnects with schedule, but they were quickly resolved. Finished the job in a day. The crew that did the job was…

It could not have been better. I obtained many estimates for my roof replacement. I decided on Certified because of the down to earth manner…

Two weeks after moving into a new home, we discovered, after a heavy rain, that we had a leak in an older flat roof over…

No complaints. Tom provided background about the company, explained the process, and provided upgrade options. All of Certified's claims checked them out with CertainTeed, Angie's…

Certified Inc was very professional and I do recommend them., Tom the owner conducted a thorough inspection and provided an estimate that included all of…

The reason I picked Certified was twofold: 1. Because they were going to do everything I wanted done and 2. because I felt they had…

From start to finish, the service I received was exceptional! The estimate was fair and competitive with 3 other estimates. The roofers arrived promptly at…

Certified was recommended to me by a neighbor who was very happy with the job they did. I got three estimates from different companies and…

Certified Inc is a terrific company to work with--from prompt inspection of work to be performed, quick and reasonable estimate and then a very competent…

In a word, our experience was "FANTASTIC." First, the PEOPLE: Tom (the owner) listened carefully to my concerns about our old roof; gave it a…

Certified did a great job. It was completed in 1-1/2 days. The crew worked diligently and cleaned up after the job was done. As requested,…

As I said before, I would definitely hire again!!! But I only have on roof!! :) I don't even know where to begin to describe…

The work was done in a timely, professional way. The company left our property clean of debris, communicated consistently as to arrival and departures and…

Finding a good, reliable roofing company without the high sales pressure or trying to push a particular product was a challenge, until I met with…

We have a very complicated roof for starters. We had a full roof replacement 2 years ago performed by Certified. The one area of the…

Certified Inc. replaced our roof shingles and soffits. The work was done efficiently and on schedule. The installers were professional, polite, friendly and mindful of…

The repair went very smoothly. The repairman had suggested two separate course of action choices. We chose the above-referenced fix since it was simpler while…

Crew was professional, fast and efficient. Price was excellent. I recommend this company for any roofing work you may need. Owner/estimator was courteous and explained…

Certified did the job in a matter of weeks, rather than months later as proposed by all of the other estimators we dealt with. This…

The whole process was smooth. Tom, the owner, came out personally to do the quote, which was very competitive when compared to other companies in…

Certified was great- from communications with the office to performance of the work. I will definitely use Certified again.

My great looking roof was done two years ago by Certified Inc. They recently completed my house Siding installation that looks wonderful with the roof.…

Certified replaced the roof on my home. Tom was professional and very well prepared when he came to my home. He brought the job foreman…

The work went very smoothly. It was delayed by 2 days from the original schedule date because of rain, but I was notified immediately. Customer…

We received 5 estimates from roofers and Certified Inc not only came in at the second best price, but was the most punctual, responsive and…

I met with Tom (owner) after meeting with several other roofing companies. He walked me through the CertainTeed product line and addressed all of my…

This is my second time working with Certified on a major whole house renovation. As a detail-oriented customer, I rely on Tom Keehn and his…

Outstanding, certified was extremely helpful in providing us a detailed quote and explaining our options. Once we decided to go for it, they had us…

I was very pleased with my experience with Certified and would highly recommend them to others. Certified was one of four roofing companies I've had…

We thank you once again for your hard work and dedication to this project. We all look forward to working with you again on future…

Dear Certified, . . . Your salesmanship was excellent, and your work crew was extremely pleasant and efficient.

Certified Inc. is ranked in the "Top 1,000" home improvement companies by Remodeling Magazine, February 1998.

Dear Certified Inc., Jim and I wanted to thank you personally for the excellent work your company performed for us recently. The new roof is…

Dear Certified, We are pleased with everything about the roof—it looks super, and we thank you for a very complete job, well done.

Dear Certified Inc., We were very pleased with our new roof. I would recommend your company very highly to others.

The level of service provided by the staff of Certified, Inc. was exceptional...

...a job well done at the Four Corners Office Park.

M Frank
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Avenel Community Association
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WUSA TV
Remodeling Magazine
Mrs. James W.
Madigan, Crofton, MD
Charles F. Mischke
Beltsville, MD
Clarence Scott
Upper Marlboro, MD
Thurman Wright
Rockville, MD 20853
Bill Fisher
Silver Spring, Maryland
Specials
$150OFF
Full Roof Replacement

Cannot be combined with any other offer. Limit one coupon per customer