This pro has maintained an average of 4.5+ star throughout their time with Angi.
Corporate Account
Certified Roofing
Asphalt Shingle Roofing - Install or Replace, Asphalt Shingle Roofing Repair, Sealant for Roof - Apply,
This pro has maintained an average of 4.5+ star throughout their time with Angi.
About us
Locally, family, and veteran owned & operated. Award winning. For the past 40 years, Certified has offered the Maryland, Washington DC, Northern Virginia, West Virginia, and Delaware, areas the highest quality workmanship and unmatched level of expertise in specialty metal, shingle, slate, cedar shake, and flat roofing installation. Certified is known for its skilled craftsmen and their attention to detail. All of the professional roofers, estimators, and project managers have completed thousands of hours of training from the largest manufacturers of roofing products. We strive for 100% satisfaction. The training and certifications we earned allow us to live up to this goal. We are confident we will far exceed your expectations on your next roofing, siding, window, deck, bathroom remodel, or gutter project. Licensed in MD, DC, DE, VA, WV.
Business highlights
Emergency services offered
Veteran owned and operated
41 years of experience
Services we offer
Bathroom Remodeling, Deck construction, Deck Resurfacing, Residential, Commercial, Restoration, Insurance, roofing, siding, windows, doors, and gutters. Wind, and Hail Damage estimates provided. We work with all insurance companies.
Amenities
Emergency Services
Yes
Free Estimates
Yes
Warranties
Yes
Accepted Payment Methods
- CreditCard
Reviews
4.9839 Reviews
| Number of Stars | Image of Distribution | Number of Ratings |
|---|---|---|
| 91% | ||
| 6% | ||
| 2% | ||
| 0% | ||
| 1% |
Showing 1-25 of 839 reviews
Lou F.
Oct 2025
Great presentation about service they provide. Excellent service and price!
Response from Certified Roofing
"Thank you!!"
Lou F.
Aug 2025
Great! Sales person walked me through the entire process and showed me a sample of all the products they use, including the warranty. The total cost came in under the estimate!
Response from Certified Roofing
"Thank you for the review! We try to make our process as easy and simple and possible."
Ted S.
Jul 2025
Great job. The sales person was very good they set dates for the job to start and being completed. They showed up on time and completed the job on time. Would recommend them to anyone needing a roof replaced or repaired.
Response from Certified Roofing
"Thank you for the review! I'm happy to hear we gave you a great experience from start to finish."
Delmar W.
May 2025
Certified Roofing was fantastic. They promptly sent a technician out to diagnose my problem and promptly made repairs. Their prices were very reasonable.
Response from Certified Roofing
"Thank you for working with us! We are here any time you or your neighbors need us."
Judy B.
Oct 2024
great service love the roof, cleaned up after completion and great pricing
Response from Certified Roofing
"Thank you [Member Name Removed]! It was a pleasure working with you in Fredrick!"
Sharon A.
Feb 2024
Certified Inc. did an excellent job. I would definitely recommend to others.
Response from Certified Roofing
"Thank you, [Member Name Removed]! It was a pleasure to work with you in Accokeek!"
Brenda K.
Sep 2022
Certified Inc did an outstanding job on my roof replacement, gutter replacement and the fascia/frieze/corner posting. My first point of contact was Jay Jones who came and inspected my home to determine the scope of work for all of my projects; he was superb. From there, Diana See took over and scheduled the work teams to ensure that work was done in priority order, and that it was done on schedule. Special shout out to Mateo and Javier, who managed the teams to ensure that work was satisfactorily completed. This company takes over, plans and schedules, inspects pre and post work, to ensure that customers are completely satisfied before any payment is requested. I would absolutely procure the services of this company again.
Jaime J.
Aug 2021
This company is Amazing! My husband and I needed to replace our 20 year old roof. We had heard so many great things about Certified, Inc., and their great customer service and quality of work; so we called. The crew was so friendly and knowledgeable and before they left they made sure the yard was completely cleaned up and that we were happy with the installation. I would recommend this company to anyone..they are no pressure, they took the time explain everything and they are honest! Thank you so much..I love my roof!
Joan N.
Mar 2021
This was my second roofing experience with Certified --- and I would use them again, as needed, because I was completely satisfied just like the first time! "Jay" was good at assessing the job and pricing it out. Javier and his assistant were especially courteous, efficient and good at cleaning up the yard afterward. I would whole-heartedly recommend them to anyone.
Lindsay M.
Feb 2021
Certified Inc. is fabulous. They replaced the roof of our 3-unit condo building about 5 years ago and did a great job. So this past fall, when we had an unrelated leak due to a hole in one of our gutters, we knew just who to call. Jay from Certified took special care in ensuring that they did a thorough inspection and didn't quote us for unnecessary work. In fact, he even looked through old company records and discovered that Certified had done work on our gutter 6 or 7 years ago -- work that pre-dated all of the current owners of the building and that none of us were aware of. As a result, he said that all work on the gutter, and all repairs to the ceiling that was damaged by the leak, would be covered under the warranty for that prior job. They came and completed the work without any hassle and we didn't have to pay a cent. Certified is a stand up company and we recommend them highly.
Michael F.
Jan 2021
I received my quote from Jay who was obviously very knowledgeable and less of a salesman than the representatives of other companies. The quote he gave me was middle of the pack, but was given on an actual signable contract detailing the whole process. This was in sharp contrast due to other quotes (e.g. a handwritten number on a blank piece of paper, or a basic $X for this shingle, $Y for this shingle). The quote also included quotes for all the options (new gutters, new skylights, etc.) which I didn't ask for but were nice to have. I ended up getting the skylights replaced anyway. Jay was also responsive to questions I had when another company began bargaining to get my business. They eventually made a very comparable offer, but the peace of mind of having a contract and the lack of salesmanship made me choose Certified. I got the quote just before Christmas due to signs of a leak appearing on a ceiling. The holidays are an awkward time to get work done, and I was worried that I would be waiting a long time, but I received notice on the first Monday after the holiday break that the materials would be delivered the next day and work would begin the day after that. The work took about a day and a half, with the workers showing up promptly at 7:30 AM both days, right when they said they would. They worked quickly but to my eyes everything was done by the book. Only time will tell with a roof. They cleaned up afterwards, and I have not found any nails or other metal bits, just a few pieces of old shingle and some plastic. The roof and flashing look good, and all points in the contract were completed. My only complaint is that there appear to be two different sizes of flashing used, and there is one long run where the two different sizes meet that doesn't look great aesthetically (though they are connected via a silicone caulk, so I don't worry about the functionality). There could be a reason for this that I don't know about.
Response from Certified Roofing
"Thank you for taking the time to communicate about your experience of replacing your roof. It is our pleasure to know that you are satisfied with the work that was performed and the professionalism of our teams. We appreciate the feedback. Please call us again if you have another roofing, siding, gutter or window project. You will get the same level of service."
Clare M.
Jan 2021
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!
Response from Certified Roofing
"Thank you for taking the time to communicate about your experience of replacing your roof. It is our pleasure to know that you are satisfied with the work that was performed and the professionalism of our teams. We appreciate the feedback. Please call us again if you have another roofing, siding, gutter or window project. You will get the same level of service."
Michael Z.
Dec 2020
My house had a built-up roof at the end of its serviceable life and an aging skylight. I consulted several roofers experienced in flat roofs and opted for Certified because Tom, the owner, and Steve were extremely knowledgeable and direct and the quote was competitive. They explained the options, recommended TPO, and explained its advantages over the alternatives. Tom and Steve were subsequently very patient with me, answering all of my questions over a couple calls and honoring the price in their original proposal despite my lengthy procrastination. While I didn’t observe the work itself, the estimate was a one-day project but the work team ended up coming back for a few hours on a second day, by which I infer they were attentive to doing the job right.
Charles M.
Nov 2020
I highly recommend Certified, Inc., Columbia, Maryland for any roof projects. They worked on my house in October, 2020, and installed a beautiful, EcoStar synthetic slate on my house's 6600 square foot roofing area. The workmen were very prompt everyday, showing up to work at 0730. The foreman answered all my questions and was very receptive to any requests. He managed his team in a professional manner and the team worked together overcoming any difficulties. They cleaned the site after they finished each day, and prepared the site for any possible weather situations. The owner of Certified, Inc. visited the work site daily and also answered all the questions. He did not expect any payment until the project was finished and I was satisfied. It was a superb job. I would highly recommend Certified, Inc. for any roofing projects.
Victoria P.
Nov 2020
When I needed a new roof replaced, I received quotes from 3 different companies. All 3 provided similar pricing, but Certified Inc gave the most detailed pricing and was the only company that has special training and certification from CertainTeed. The crew did an excellent job and I appreciated the thorough clean up of all debris after the job was completed. Would recommend.
Andrea L.
Nov 2020
The work was started as promised and completed on time. The contractor kept us informed of the project and did an excellent job. I would highly recommend this company for their professionalism, communication and keeping us under our budget!
Timothy F.
Oct 2020
Tom, Steve and the whole team at Certified were terrific. We needed to replace our roof before installing a solar array, and they got the job done in record time without skimping on quality or professionalism. The new roof looks great and I would definitely recommend them to anyone in the DMV.
Tonya T.
Sep 2020
Great from start to finish.
Robert T.
Aug 2020
They exceeded my expectations. I thought I would schedule it and it would get done a few months later. Instead, they replaced the roof the following week and the windows a few weeks after that. The work they did looks great. The roof was completed the same day as were the windows. The crews were on time and were very professional.
Response from Certified Roofing
"Thank you for taking the time to communicate about your experience of replacing your roof and windows. It is our pleasure to know that you are satisfied with the work that was performed and the professionalism of our teams. We appreciate the feedback. Please call us again if you have another roofing, siding, gutter or window project. You will get the same level of service."
Tracy P.
Aug 2020
This project was handled exceptionally well by the experts at Certified. Tom Keehn responded very quickly and He quickly impressed me as an honest man who was there to do the job right. I received three proposals and Certified’s price was very competitive. Based upon my confidence in Tom Keehn (and the company’s excellent reviews) I selected them for the job. Scheduling was quick and exactly as promised. The foreman of the job was very experienced and an excellent communicator. Just as we were told, the job took about a day and a half. Upon completion, they cleaned up our property so it looked better than it had when they arrived. This is an excellent company. If you need a new roof, I highly recommend that you contact Tom Keehn at Certified. They will not disappoint.
Response from Certified Roofing
"Thank you for taking the time to communicate about your experience of replacing your roof. It is our pleasure to know that you are satisfied both with the work that was performed and the effort to clean up when the project was finished. We appreciate the feedback. Please call us again if you have another roofing, siding, gutter or window project. You will get the same level of service."
Rachel A.
Jul 2020
Certified replaced our roof and installed two new skylights. The experience from the initial consultation to the final outcome was top shelf--and the quote highly competitive. Some highlights of the job included a detailed quote with several options to make value comparisons across multiple bids easier, a detailed description of the work to be done and an explanation of how, responsive answers to follow-up questions, CERTAINTEED's five-star warranty, and an attentive and professional crew that took care of my property as if it where their own house. This was a big job that spanned two days. The crew arrived on time, worked efficiently yet with care, and cleaned up the site before leaving on both days. The foreman consulted w/me before and during the job, taking special care to place the skylights right where I wanted them and to keep the interior of that room clean. I would not hesitate to recommend this company to friends or colleagues. From the owner (who came out to meet me) right down to the crew, the Certified team was a class act.
Response from Certified Roofing
"Thank you for taking the time to communicate about your experience of replacing your roof. It is our pleasure to know that you are satisfied both with the work that was performed and the effort to clean up when the project was finished. We appreciate the feedback. Please call us again if you have another roofing, siding, gutter or window project. You will get the same level of service."
Kayla N.
Jun 2020
Certified Inc. replaced my 80 year old metal flat roof with a new TPO roof in May 2020. When getting an estimate from Certified, Tom explained the process and the recommended roofing system in great detail. He also responded to my follow up questions quickly. After doing some research on different roofing systems, I decided to go with the TPO roof for it's environmental friendly qualities. The team who replaced my roof worked quickly and did a good job of cleaning up after they completed the work. I received pictures of the roof after the work was completed. Every staff person I came into contact with was friendly. Only time will tell me the overall quality of the roof/work done. But I can say I am pleased with the process of getting my roof installed with Certified, Inc.
Response from Certified Roofing
"Thank you for taking the time to communicate about your experience of replacing your roof. It is our pleasure to know that you are satisfied with the work that was performed and thank you for adding the photo of when the project was finished. We appreciate the feedback. Please call us again if you have another roofing, siding, gutter or window project. You will get the same level of service."
Travis W.
May 2020
It was a great experience working with them
Response from Certified Roofing
"Thank you for taking the time to communicate about your experience of replacing your roof. It is our pleasure to know that you are satisfied with the work that was performed. We appreciate the feedback. Please call us again if you have another roofing, siding, gutter or window project. You will get the same level of service."
Melisa R.
May 2020
Steve was very personable and his crew was on time, efficient, and professional. I would definitely recommend this company for their roofing expertise.
Response from Certified Roofing
"Thank you for taking the time to communicate about your experience of replacing your roof. It is our pleasure to know that you are satisfied with the work that was performed. We appreciate the feedback. Please call us again if you have another roofing, siding, gutter or window project. You will get the same level of service."
Mary M.
Apr 2020
All went smoothly from the time we contacted Certified through the roof replacement being completed. Owner, Tom Keehn was great to work with. Everything went as expected; materials delivered on time, work completed day scheduled (in even in less time than anticipated), professional and job well done. A pleased customer.
Response from Certified Roofing
"Thank you for taking the time to communicate about your experience of replacing your roof. It is our pleasure to know that you are satisfied both with the work that was performed and the effort to be prompt with our scheduling. We appreciate the feedback. Please call us again if you have another roofing, siding, gutter or window project. You will get the same level of service."
Licensing
State Contractor License Requirements
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FAQ
Certified Roofing is currently rated 4.9 overall out of 5.
Certified Roofing accepts the following forms of payment: CreditCard
Yes, Certified Roofing offers free project estimates.
No, Certified Roofing does not offer eco-friendly accreditations.
No, Certified Roofing does not offer a senior discount.
Yes, Certified Roofing offers emergency services.
Yes, Certified Roofing offers warranties.