Certified Inc

We service the Columbia, Chevy Chase, Ellicott City, Germantown, Laurel, Rockville, Timonium, Towson and surrounding areas.  Reach out to us if you’d like a consultation, (301) 970-3725

A family-run company since 1984, Certified Inc. Roofing is revolutionizing the roofing industry. We are committed to helping our clients in keeping their homes secure without having them to go through high-pressure sales tactics or paying outrageous prices.


You can be sure that when you contact Certified Inc. Roofing, you will be getting a team of skilled craftsmen, a team that gives attention to detail and a company that will offer you fair pricing. We take the time to explain what work needs to be done on your house and your options before providing you with a proposal. We will not accept a payment until you are 100% satisfied with our work!


Give us a call today and we’ll show you why you can trust us to provide the exceptional, detailed-oriented roofing services you deserve!


Excellent Craftsmanship Since 1984

  • 5-Star CertainTeed Installer
  • Customer Satisfaction is Our Goal
  • Military and First Responder Discounts


Check out some important pages from our company's website


Read what over 150 clients have said about our services

Our Work

23656 Richland Grove Drive , Ashburn, VA
  • CertainTeed Landmark PRO
  • Weathered Wood
5703 Crawford Drive , Rockville, MD
  • CertainTeed Landmark PRO
  • Moire Black
5711 Crawford Drive , Rockville, MD
  • CertainTeed Landmark PRO
  • Moire Black
3021 Macomb Street Northwest , Washington, DC
  • CertainTeed Landmark PRO
  • Weathered Wood
14336 Compton Village Drive , Centreville, VA
  • CertainTeed Landmark PRO
  • Moire Black

Customer Testimonials

7009 Westbury Rd. undefined, McLean, VA

Everything went as well as could be expected. Responsive crew.

Source: Project Map It | More Details

8506 Rayburn Rd undefined, Bethesda, MD

We are extremely happy with the whole experience! Our house is a 1950s rambler (about 1600 sq ft) with the original wood planks over the main area and plywood sheathing over an extension. The previous roof shingles were about 25 years old. Tom Keehn came out to the house to evaluate the job and was very helpful in explaining what they would do step by step. We were very impressed with all of the details that he provided and with the literature that he left with us. The other companies that we contacted did not go into as much detail. The price was extremely competitive and after we signed the contract, the job was scheduled very soon after. The men who did the work are very professional, courteous, and highly skilled! After they removed the old shingles, they found some problem areas and were able to solve every problem - including replacing wood in some awkward areas, and a very rusty metal chimney stack. They conscientiously checked every single board on the roof to make sure it was still sound and they only replaced those areas that were rotten. Then they made sure that all of the original boards were securely attached to the rafters - adding extra nails if necessary. Then several layers were placed over the wood - my neighbor who watched the entire process from a higher vantage point was incredibly impressed with how well the roof was sealed before the new shingles were put on. The men cleaned up throughout the process and by the end of the job - everything was gorgeous - the roof is beautiful, the new flashing is better than it ever was, etc. This is an incredible company! We highly, highly recommend them!

Source: Project Map It | More Details

1434 Longfellow Street undefined, Washington, DC

I highly recommend Certified for your roofing needs. Tom came out and gave me a fair and very competitive estimate that couldn't be beat. He was knowledgeable and understanding of my specific roofing needs. I had both an angled roof and flat roof to be done and Certified handled them both with ease. After I received the estimate, it took me a couple months to get back to Tom as I gathered financing and did some more comparison shopping, but Certified still came out on top in terms of price and warranty and honored the original estimate. No steeply discounted sales pressure tactics on the first day like some of the bigger companies that I contacted. I was happy with Tom's assessment and honesty. The install crew came out when scheduled, worked in the bitter cold, snow, and wind, and didn't stop until the work was done. They worked late to keep to the schedule and were there well after dark using flashlights. Juan Carlos and his crew wanted to make sure that we were happy and our roof wouldn't leak even halfway through when the job wasn't finished. Right before and after they came, it snowed. They left debris in the yard because they couldn't see it to clean it because of the unmelted snow. After the weather warmed up and the snow melted, Juan Carlos and his crew came back out and did a very good job cleaning my yard. Of course they couldn't get every bit of debris, but it's presentable enough that if I didn't know there was work done and debris left over, I wouldn't have realized it at first glance. Overall, I'm very happy with the results and look forward to many, many years of a dry house and a strong roof. Thanx Certified!!!

Source: Project Map It | More Details

4317 N. Addison Rd. undefined, Capitol Heights, MD

The contractors arrived at my home on time and were professional. All work items and trash was removed from my home the day the work was completed. The job was also completed in a timely manner.

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6504 Coachleigh Way undefined, Alexandria, VA

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!

Source: Project Map It | More Details