estimated price

Plenty of availability

in the next 7 days

Instant Book


Responds within a day

Introduction: 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, 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.

Hired 63 times

Serves DHS, VA

Background checked

License verified

15 employees

40 years in business

Business hours

SunClosedMon10:00 am - 7:00 pm

Scheduling policy

You can reserve this pro up to 14 days in advance. They'll need at least Read more

Payment methods

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

Social media

Facebook, Twitter

Featured Projects

37 photos

  • Ridge vent Repair

    Roof Repair or Maintenance

  • Cedar Shake Project in Boyd's Md

    Roof Installation or Replacement


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

Very good 4.5

53 reviews


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
Nicholas F.
May 8, 2023

Hired on Thumbtack

Hired on Thumbtack

Certified was great to work with. They were very professional about the roof repairs needed and were a great value too! I recommend reaching out to them for your roofing needs.

Details: Shingles or tiles need to be repaired or replaced • Flashing needs to be repaired or replaced • Entire portions of roof need to be repaired • Two-story building • Asphalt shingles • No, the project is not covered by an insurance claim • Residential

Roof Repair or Maintenance
pro avatar
Pamala B.
Apr 7, 2023

Hired on Thumbtack

Hired on Thumbtack

Tim is my absolute favorite technician. He is personable and listened to my concerns. During the initial consultation for an estimate, he addressed any questions that I had concerning my options for the roof repair. On the day of the Rake portion of the roof repair, I was able to see and touch the products being installed. The entire process was educational for my family and I. We really appreciate Tim and Javier’s attention to detail and their workmanship as a team.

Details: Flashing needs to be repaired or replaced • Two-story building • 11 - 20 years old • No, the project is not covered by an insurance claim • Residential

Roof Repair or Maintenance
pro avatar
Eziaku O.
Jan 14, 2023

Hired on Thumbtack

Hired on Thumbtack

If you don’t have time to read any further, the answer is YES. BOOK CERTIFIED. They are AWESOME. Quality workmanship, attention to detail, transparency, EXCELLENT customer service and a good reputation that they live up to. I’m impressed, truly grateful and lucky to have worked with Certified Inc. for roof replacement. Professionally, this company and their team truly lived up to their name. My rating is 10 out of 10, highly recommend. My process started with Adam, who contacted right away after I submitted a request for an appointment. Shawn and Mike were AMAZING! They arrived promptly, with samples and explained the roofing process from materials to warranty. The two gentlemen provided information and requirements thoroughly. Their proficiency, and user - friendly deliverance of information really provided me with easy to understand and actionable steps to help expedite the project. I made an appointment with about 4 vendors, and their price was comparable, all things considered. I chose Certified Inc. for their material, explanation of steps, warranty, availability, and turnaround time. Within a week, I was able to book an appointment, choose shingle design and get a new roof/skylights and complete roof replacement for a shed (all in all, a 2 day process due to the size of the project). I’m especially grateful for their honesty, and quick turnaround time, as this was a time sensitive matter (insurance related). Certified was able to get me an appointment within the time required by my insurance, and during the project, Mateo and Mike provided me with photos of the progress. The roofing team were friendly and pleasant. Certified exceeded my customer service expectations. They are a great team, who handled my case as if I was their only client. They have shown that they are experts in this craft and more importantly, kind human beings. With sincere gratitude in my heart, I have nothing but good things to say after my roofing experience. I will hire this company again for future projects and I would HIGHLY recommend Certified with zero reservations.

Details: Full roof replacement • Roof is cracked or damaged • Roof lifespan is over • Two stories • 20 - 30 years old • Asphalt shingles • Home

Certified's reply
Ezi, it was an absolute pleasure working with you. Call us any time.
Roof Installation or Replacement
pro avatar
Raymond H.
Aug 14, 2023

Hired on Thumbtack

Hired on Thumbtack

Tim and the team were great at replacing my old, damaged front fascia. I'm also working with them getting 3 windows replaced. I've even recommended them to neighbors for their repairs. They are a great team to work with that are affordable as well!

Details: Roof and/or gutter cleaning • Two-story building • No, the project is not covered by an insurance claim • Residential

Roof Repair or Maintenance
pro avatar
Shatisha L.
Apr 2, 2023

Hired on Thumbtack

Hired on Thumbtack

Job well done. Arrived on time, it was windy but that didn’t stop this team of two. They did an awesome job, couldn’t tell the old trim from the new. I would hire Certified again in a minute.

Details: Peeling • Moderate, area is usable but concerns about safety exist • Home

Siding Repair

License Type: Home Improvement Contractor (MD)

License verified on 10/22/2022

Background Check

Stephen Mitchell


  • What education and/or training do you have that relates to your work?

    We are Select Shingle Masters for CertainTeed. We have been certified by them offering 5 Star Warranties on all Asphalt Shingle Roofs. Additionally we are Cedar Shake and Shingle Bureau Certified. We have been trained and certified by MuleHide.

  • Loading