Featured

AJT Roofing and Contracting

Roofers in St. Catharines, Ontario
Ranked #3 in St. Catharines | Grade A-
4.90 (197 reviews)

AJT Roofing and Contracting

Local roofer focused on practical solutions for leaks, replacements, and flat roofing in St. Catharines, Ontario. Known for quick site visits, clear communication, and tidy completion.

AJT Roofing and Contracting business photo 1 - Roofing in St. Catharines
AJT Roofing and Contracting business photo 2 - Roofing in St. Catharines
AJT Roofing and Contracting business photo 3 - Roofing in St. Catharines
AJT Roofing and Contracting business photo 4 - Roofing in St. Catharines
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Why Homeowners Choose This Business

- Prompt response for leak calls and estimates
- Experience with both shingle and flat roofing systems
- Clear photos and explanations before work starts
- Crews complete work efficiently and leave yards tidy Local experience that helps homeowners across St. Catharines, Ontario compare a more region-aware provider.

Service Area

Based in St. Catharines, Ontario and working throughout the Niagara area. Call to confirm scheduling in your neighborhood.

Featured Local Business

This featured listing includes fuller business details and a stronger local presentation for homeowners comparing nearby options.

Featured
Featured on ProsGrade
Listing details

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  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Holds a strong position among local competitors.
  • Performs at or above the local average rating.
  • Has more review volume than many local competitors.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Roofing Contractor
  Roof Leak Repair
  Roof repair
  Shingle Roof Replacement
  Shingle Roofing
  Flat Roofing
  Installations
  Roof maintenance
  Repairs
  Roof Inspection
  Flashing Repair
  Skylight Leak Repair
  Roof Ventilation
  Storm Damage Roofing
  Asphalt Shingles
  Roof Tune-Up
  Roofing Cleanup

Roof leak assessment and repair; shingle roof replacement; flat roof systems; roof maintenance and tune-ups; ventilation and flashing repairs; storm damage inspection and minor emergency leak mitigation.

Reviews

Customer Reviews

ProsGrade review
Brenda Dyck-Goossen
Just in Time
One morning, I woke up to a leak in the ceiling, dripping on my head. Based on the excellent reviews I saw online, I called Adam. As it was a really rainy day and an active leak, he sent Lucas out to see what was going on. Lucas sorted the…
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One morning, I woke up to a leak in the ceiling, dripping on my head. Based on the excellent reviews I saw online, I called Adam. As it was a really rainy day and an active leak, he sent Lucas out to see what was going on. Lucas sorted the leak right away but spotted some potential problem areas and called Adam in to confirm. Turns out, our roof had some major issues and, rather than repair, we decided to replace the whole thing. Adam explained the problems and answered all my questions. I was never made to feel that my questions were dumb, which they probably were since I know nothing about roofs. He provided clear estimates on our options for the new roof. Lucas and his team started the work exactly on schedule. The work took two days in very hot weather and, at the end of each day, the yard was cleaned up perfectly. Every member of the team was friendly, polite and, honestly, fun to have around. As coincidence would have it, our solid new roof was in place when we had the two torrential rain storms here in Virgil last week. The one thing I wasn't worried about was the roof thanks to Adam, Lucas and the team. Sometimes heroes wear capes.....sometimes they wear AJT hoodies. Seriously, these guys are the best.
Dianne Rubinstein
Adam's team were at my dad's today to do maintenance on his older roof. They were quick, efficient, and polite. The great job they did has added at least 5 more years to the life of the roof. Highly recommend
Tomas L
Thank you to Adam and the entire AJT team. After discovering a leak on our roof we were quickly recommended to AJT and we could not be happier that we reached out. Adam showed up the same day I called to assess the situation, knew what the…
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Thank you to Adam and the entire AJT team. After discovering a leak on our roof we were quickly recommended to AJT and we could not be happier that we reached out.
Adam showed up the same day I called to assess the situation, knew what the problem was and immediately made a plan to take care of it. Within two days, his team was there to provide the necessary maintenance to address the issue.
Quick, effective, very affordable & no nonsense approach with nothing but positive results in mind.
Shoutout to Lucas and his crew as well; everyone was very polite, professional and above all knowledgeable.
I highly recommend AJT Roofing for any and all roofing needs.
Terri Seguin
A big Thank you goes out to Adam, Dave and all his amazing staff. Our roof was just done today, I have to say we’re so very happy with the work and the amazing job done. We love our new roof! We’re so happy in how affordable it was as well,…
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A big Thank you goes out to Adam, Dave and all his amazing staff. Our roof was just done today, I have to say we’re so very happy with the work and the amazing job done. We love our new roof! We’re so happy in how affordable it was as well, this company is top 5 star and I highly recommend Adam and Dave. We also received free hoodies with there logo! Thanks again Adam and Dave all you guys Rock!! Terri and Brian.
RonK
After calling two other Roofing companies in St. Catharines , Adam from AJT was the only one to actually show up and go up on my flat roof. He provided photos and explained the repairs and materials required to complete the job.Adam ,s crew…
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After calling two other Roofing companies in St. Catharines , Adam from AJT was the only one to actually show up and go up on my flat roof. He provided photos and explained the repairs and materials required to complete the job.Adam ,s crew were very professional and carried out the installation in a timely fashion. My property was left clean and in the condition as they found it.I would highly recommend AJT Contracting and not hesitate to use them in the future.
Kim C
Adam and his team were fantastic. We have a split roof with two different slopes, with one slope being close to a flat roof. We went with two different roofing systems, Certainteed (shingles) and Soprema (flat roofing system) Adam was very…
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Adam and his team were fantastic. We have a split roof with two different slopes, with one slope being close to a flat roof. We went with two different roofing systems, Certainteed (shingles) and Soprema (flat roofing system)

Adam was very easy to communicate with and scheduling for the work was easy. The team arrived when they said they would and got the entire roof done in one day! They left our yard as they found it, and cleaned up everything.

Adam was able to answer all the questions we had about the roof and the work, and walked us through the process and the maintenance needed moving forward.

We had a great experience.

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Special Offers

Free Estimate

This business may offer free estimates for some services.

Free Roofing Estimate

On-site roof assessment with a clear written estimate.

$0 estimate
Emergency Service

Emergency service may be available for urgent issues.

Leak Check & Minor Seal

Rapid assessment for active leaks with minor sealing if feasible.

Priced after inspection

Frequently Asked Questions

The team handles leak repairs, full shingle replacements, and flat roofing projects. They also perform maintenance and tune-ups when a repair can extend the life of an existing roof.

Response times vary by season, but many reviewers report fast scheduling and, in some cases, same-day assessments. Calling early in the day typically helps secure a quicker visit.

Yes, they service both. Recent customer feedback mentions shingle systems and modern flat roofing solutions being installed and repaired.

Reviews frequently note thorough clean-up at the end of the project. Crews aim to leave the property as they found it, including magnet sweeps for nails where applicable.

Estimates are provided after an on-site assessment and explanation of the scope. Customers often mention clear, no-nonsense pricing and photos to show recommended work.
 Verified Listing

Opening Hours

  • Monday Open 24 hours
  • Tuesday Open 24 hours
  • Wednesday Open 24 hours
  • Thursday Open 24 hours
  • Friday Open 24 hours
  • Saturday Open 24 hours
  • Sunday Open 24 hours

Request Service

Business Details

Business Rating
4.90 (197 reviews) Featured BusinessPro Listing
Address
38 Adel Dr, St. Catharines, ON L2M 7E4, Canada, St. Catharines, ON L2M 7E4
Business Type
Roofing Contractor
Website
https://ajtroofing.com/
City Page
Roofers in St. Catharines, Ontario

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