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

- Bruce Johnson on 06/13/2017

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

- Remodeling Magazine on 06/13/2017

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 beautiful.

- Mrs. James W on 06/13/2017

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

- Charles F. Mischke on 06/13/2017

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

- Clarence S on 06/13/2017

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

- Thurman W on 06/13/2017

A job well done at the Four Corners Office Park

- Bill F on 06/13/2017

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We Service the Following Areas:

Maryland: Annapolis,  Bethesda, Columbia,  Frederick, Gaithersburg, Highland, Laurel, Olney, Potomac, Rockville, Silver Spring, Takoma Park

Northern Virginia: Alexandria, Arlington, Fairfax, Falls Church, Loudoun, Manassas, Sterling

Washington DC