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Top-Rated Flat, foam or single ply roofing repairers in Ontario - Updated Nov 2026

Avatar for Hoyt Roofs, Inc
Hoyt Roofs, Inc
4.3(
132
)
Flat, Foam or Single Ply Roofing - Repair

Serving Ontario, CA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"We are giving Hoyt Roofing a 5 Star rating, because of the excellent job they did on the installation of our new roof. The whole process only took four days and the workers went over and above to keep us informed of the progress and maintaining a clean work area. We were impressed from the initial meeting where we discussed and deciding on the terms and conditions to completion of the job. They were not pushy or try to upsell their products. We highly recommend this company to anyone who needs a new roof."
Additional Photos
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+8

Response time1 day
10 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for ESSENTIAL BUILDERS INC
ESSENTIAL BUILDERS INC
4.9(
189
)
Flat, Foam or Single Ply Roofing - Repair

Serving Ontario, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Warranties offered

"Sam and his team at Essential Builders tackled our roof repair with precision and professionalism, resolving the issue promptly and effectively. Their expertise and attention to detail gave us peace of mind, knowing that our roof was in capable hands."
Flat Roof Torch Down
Full Roof Completed
Full Roof Completed
Full Roof Completed
Owens Corning Underlayment

+35

Response time5 hrs
Response rate97%
135 neighbors recently requested a quote
Avatar for Clear View Roofing & Construction
Clear View Roofing & Construction
4.9(
133
)
Flat, Foam or Single Ply Roofing - Repair

Serving Ontario, CA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"I had a great experience with clear view roofing and construction. They repaired my roof and painted it, and the results look amazing. The whole process was smooth from start to finish, and the team did high-quality work while keeping everything clean and organized. Robert was especially outstanding. He was extremely professional, knowledgeable, and easy to communicate with. He took the time to explain what needed to be done, answered all my questions, and made sure the job was done right. It’s clear he takes pride in his work and truly cares about customer satisfaction. I highly recommend this company to anyone who needs roofing work or painting done. If you get the chance to work with Robert, you’ll be in great hands!"
Hard Working Crew Member
Owens Corning 50 Yr. Roof
Owens Corning 50 Yr. Roof
Owens Corning 50 YR System
Owens Corning 50 Yr. Roof

+7

Response time4 hrs
Response rate99%
832 neighbors recently requested a quote
Avatar for Federal Building & Roofing
Federal Building & Roofing
4.8(
81
)
Flat, Foam or Single Ply Roofing - Repair

Serving Ontario, CA and surrounding areas

Approved

In business since 1979

Free estimates

Warranties offered

"Contracted Federal Building and Roofing with Richard and his team after Listening to Richard's suggestions during the estimate. Had bad water damage to many Rafter Tails as well as a severe leak in the garage, Had several Contractors out for estimates some wanting to go a much more expensive route to repair the damaged wood on the Rafters as well as suggesting a complete Torch down on the entire roof which was not needed, which came with a less than desirable Warranty along with higher costs. Richard gave me peace of mind with his knowledge and suggestions which in turn provided a much longer Warranty and cheaper more effective route to repairing the damaged Rafter tails,all at a very reasonable price compared to other estimates. Any Contractor should have been able to provide me with these suggestions and alternatives but failed to do so. Richard and his team were Professional, polite,cleaned up thoroughly each and every day and completed the job on time as scheduled."
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Composition Roofing
Tile Roof

+2

7 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for California Roof Experts
California Roof Experts
4.7(
302
)
Flat, Foam or Single Ply Roofing - Repair

Serving Ontario, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Emergency services offered

"Sept. 2024. We own a single story 2150 square feet home in Yorbe Linda. The spanisch tile roof is now 35 years old and it was leaking in one spot. ,We decided to replace all the underlying tar paper for the whole roof. We got four estimates, One was very close to California Roof experts, and two's costs 20% more. California Roof experts was the only company that offered a 20-year warranty on their work. They use a new superstrong woven silicone roofing paper to give this guarantee. Plus they were the only one that would reset the tiles on commercial wood strips to hold the tile in place. The wood strips have 3/8" thick rubber pads that will the water, if any, to allow to run under the strips. They did reuse the sheet metal that is places at the low point of two sided (gulley). I was skeptical of the sheet metals condition and I had Arthuro bring the sheet metal down for inspection and they showed no rust spots. I did however have Arthuro hammer flat some protruding sheet metal spots where the previous nails were so as not to cut the thin woven silicone paper. Also, we insisted on using city inspection, for which we paid, $330, Once the roofers started, they had always a full crew on the job, and we never had to call them up or prod them. Each evening, they cleaned up around the house before the left. There was no request for additional tiles, cement or any other item. Once the job was completed, it passed city inspection the first time. We are very satisfied with the company, their management, and their workers. Gunter H. Sanders"
Reroof with Tile Replacement - Walnut, CA
Reroof with Tile Replacement - Walnut, CA
Reroof with Tile Replacement - Walnut, CA
Reroof with Tile Replacement - Walnut, CA
Reroof with Tile Replacement - Walnut, CA

+41

Response time2 days
1 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for B & M Roofing Stripping Services
B & M Roofing Stripping Services
4.8(
21
)
Flat, Foam or Single Ply Roofing - Repair

Serving Ontario, CA and surrounding areas

Approved

In business since 1991

Free estimates

Customers say: Quality work

"Great experience for a roof repair leak. Mark Carrasco came out and gave me an estimate at a very fair price. His crew came out to repair the leaky roof about a couple of weeks ago and the next day it rained hard for 2 days. No more leak at all and on the estimate, they will come back out within a year and take care of it at no charge if any problems develop. Additionally I want to commend Efrain. I was going to clean the outside of my window near where I had access to the roof they were repairing. Efrain volunteered to clean that window. Thank you Efrain for giving 110% customer service."
Response time1 day
Response rate89%
Recommended by100%of homeowners
Avatar for JORDAN ROOF COMPANY
JORDAN ROOF COMPANY
4.7(
124
)
Flat, Foam or Single Ply Roofing - Repair

Serving Ontario, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Bill came over to my Mom's house and did a complete inspection of the roof. My Mom was concerned that she might need a new roof before the rains come.  Bill was so nice and honest with his discussion with my Mom and me.  He said that she had at least another 10 to 15 years of life left on her roof.  I asked if I could pay him for his time and he said no thanks.  
I have so much respect and appreciation for Bill and Jordan roofing, that when either I or my family needs a roof, I will use them !!
And I will recommend them to my friends !!
"
Commercial
3 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for C.S. Construction and Roofing
C.S. Construction and Roofing
4.6(
14
)
Flat, Foam or Single Ply Roofing - Repair

Serving Ontario, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Corey was able to come and resolve our issue in a timely manner. Best way to communicate is through a phone call. Leave a message if it's not answered and they will get back to you as soon as they can. Had a leak in my roof that kept springing up. He had someone come look at it the same day, and they're able to patch it up just before the rain. I'm grateful for the quick resolution."
Roof replacement Hesperia
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+8

Response time1 day
Response rate100%
8 neighbors recently requested a quote
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