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Certified

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About
Certified Inc. handles Commercial and Residential Contracting services in Bethesda, Howard County, Montgomery, Frederick, Anne Arundel, Prince George's, Fairfax County, Arlington, City of Alexandria, Loudon County, Prince William & to include Washington, DC., and nearby areas. Commercial, Residential, Restoration, Insurance, Bath Remodel, Decks, Porches, Roofing, Siding, Windows, Doors, Certified Inc is an expert in these areas. Flat / Low Slope, TPO, PVC, Cedar Shake and Shingle, Slate, Synthetic Shake and Slate, Asphalt Architectural Shingle, etc. Customers love us because of our Military and First Responder Discounts, plus our 100% custom satisfaction rate. We also have industry affiliations and certifications such as CertainTeed 5-Star, CSSB and Mule-Hide. Our estimates and visits are always free.
Overview

Hired 141 times

Serves Columbia, MD

Background checked

License verified

15 employees

41 years in business

Business hours

SunClosedMon10:00 am - 7:00 pm

Payment methods

This pro accepts payments via Cash, Check, and Credit card.

Social media

Facebook, Twitter

Services offered
Project scope
Property type

Residential

Commercial

Projects and media

71 photos

Projects and media

71 photos

Reviews

Customers rated this pro highly for professionalism, work quality, and responsiveness.

Very good 4.6

63 reviews

5

81%

4

9%

3

2%

2

0%

1

8%

This pro's rating is a combination of reviews posted by customers both on and off of Thumbtack. Thumbtack cannot verify external reviews.

Read reviews that mention:


pro avatar
Stephanie R.

1 month ago

Hired on Thumbtack

Certified came through for us when our HOA saw that our Soffitt was damaged by birds who decided to take up residence. They busted their butts and took care of the job however small. What impressed me is how professional the crew was, including the owner and the project coordinator. They did not try to upsell when they came out for the estimate. The crew noticed that our neighbors’ roof was one bad windstorm from being blown off (we live in a row house, so roofs matter to all of us). We appreciate the heads up and passed along their info to our neighbors. 10000% using Certified in the future.

Details: Soffit or fascia needs to be repaired or replaced • Three-story building • More than 30 years old • No, the project is not covered by an insurance claim • Residential

Certified's reply
Thank you for the review! We try to live by "Always do right". I'm very happy to hear that our crew was making sure to look out for the community when they were there to help you with your project.We always want to be your first call when something is happening or when you're curious about your next project. We just want to take care of our community
Roof Repair or Maintenance
pro avatar
Hassan A.

2 weeks ago

Hired on Thumbtack

Took care of our roofing issues in a timely manner. Would definitely recommend to others and I want to thank Colin and his team

Details: Entire portions of roof need to be repaired • Two-story building • 11 - 20 years old • No, the project is not covered by an insurance claim • Residential

Certified's reply
Thank you for the great review! I want us to be your first call anytime something is amiss or if you are curious about your next project. Until next time!
Roof Repair or Maintenance
pro avatar
Surya K.

Aug 19, 2025

Hired on Thumbtack

I had a roof leak that wasn’t resolved the first time around, but when Richard and Tim came out for the follow-up, they were fantastic. They carefully inspected the roof, figured out that the issue was caused by nails under the shingles that weren’t sealed properly, and fixed it on the spot—without charging me anything extra. They were professional, transparent, and clearly took pride in doing the job right. I really appreciate their honesty and effort in making sure the problem was properly solved. Richard and Tim went above and beyond, and I highly recommend them for anyone looking for reliable roof repair.

Details: Shingles or tiles need to be repaired or replaced • Two-story building • 0 - 10 years old • Asphalt shingles • No, the project is not covered by an insurance claim • Residential

Certified's reply
Thank you Surya! Richard and Tim are awesome! They are what make us "Certified". They always do the right thing for our neighbors & communities!
Roof Repair or Maintenance
pro avatar
Raphael E.

Aug 25, 2025

Hired on Thumbtack

Top to bottom, a really good company to handle your needs.

Details: Flashing needs to be repaired or replaced • Two-story building • 0 - 10 years old • No, the project is not covered by an insurance claim • Residential

Certified's reply
Thank you! I look forward to our future projects with you and your community.
Roof Repair or Maintenance
pro avatar
Cory G.

Sep 3, 2024

Hired on Thumbtack

Wonderful experience! The tech was incredibly helpful and thorough (and very kind). Identified a few issues with roof I never would have caught myself and gave suggestions for mitigating lesser concerns.

Details: Home • Two-story building • All flat and walkable • Less than 1,000 sq ft

Roof Inspection
Credentials
License

License type: HIC – Contractor – Home Improvement

License state: VA

License verified on 10/8/2025

Background Check

Stephen Mitchell

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