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Top-Rated Roof sealant application pros in Guasti - Updated Nov 2026

Avatar for Clear View Roofing & Construction
Clear View Roofing & Construction
4.9(
133
)
Sealant for Roof - Apply

Serving Guasti, CA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Clearview Roofing and Construction was exceptional in their service! Everything they promised was delivered, I couldn?t be more happy with the results of my roof, highly highly recommend for anyone looking for work to be done on their roof. Thank you so much Clearview !!!"
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%
816 neighbors recently requested a quote
Avatar for ESSENTIAL BUILDERS INC
ESSENTIAL BUILDERS INC
4.9(
189
)
Sealant for Roof - Apply

Serving Guasti, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Warranties offered

"Sean and the crew at Essential Builders delivered top-notch roof replacement services, completing the project efficiently and with the utmost care. Their attention to detail and commitment to customer satisfaction were truly commendable, making them the go-to choice for any roofing needs."
Flat Roof Torch Down
Full Roof Completed
Full Roof Completed
Full Roof Completed
Owens Corning Underlayment

+35

Response time5 hrs
Response rate97%
133 neighbors recently requested a quote
Avatar for Federal Building & Roofing
Federal Building & Roofing
4.8(
81
)
Sealant for Roof - Apply

Serving Guasti, 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."
Additional Photos
Additional Photos
Additional Photos
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
)
Sealant for Roof - Apply

Serving Guasti, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Emergency services offered

"We recently hired California Roof Experts for a roof leak repair and a roof tune-up. From the start, they were very prompt in providing a reasonable quote. Their team was quick to schedule the job and arrived on time. They were thorough in their work, ensuring everything was addressed properly. We’re very happy with the outcome and would definitely recommend them for any roofing needs. Great service at a fair price!"
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 JORDAN ROOF COMPANY
JORDAN ROOF COMPANY
4.7(
124
)
Sealant for Roof - Apply

Serving Guasti, 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
2 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Artizmo Builders Inc
Artizmo Builders Inc
4.8(
27
)
Sealant for Roof - Apply

Serving Guasti, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"I recently hired Artizmo Builders for a roof replacement, and I couldn?t be more pleased with the results. Their team was professional, efficient, and completed the job on time and within budget. They explained all options clearly, provided great communication throughout, and left my property clean. The new roof looks fantastic, and I feel confident in its durability. Highly recommend Artizmo Builders for any roofing needs!"
New Roof Replacement
New Roof Replacement
New Roof Replacement
Beautiful Torchdown
Flat Roof Replacement

+1

Response time9 hrs
38 neighbors recently requested a quote
Avatar for Artizmo Builder Inc.
Artizmo Builder Inc.
4.6(
17
)
Sealant for Roof - Apply

Serving Guasti, CA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Thanks to their quality work, my roof is now watertight and secure. I have peace of mind knowing that I chose Artizmo Builders for the job. If you're in need of roof repair work done with precision and care, I highly recommend this company."
New Roof Replacement
Additional Photos
Response time10 hrs
Response rate100%
33 neighbors recently requested a quote
Avatar for Atom Builders, Inc.
Atom Builders, Inc.
4.7(
120
)
Sealant for Roof - Apply

Serving Guasti, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Free estimates

Emergency services offered

"I recently hired Atom Builders for a roof replacement, and I could not be more impressed with their work. From start to finish, the team was professional, efficient, and extremely knowledgeable. They provided a free estimate, explained everything in detail, and worked within my schedule. The quality of their craftsmanship is top-notch, and the new roof looks fantastic. They also cleaned up thoroughly after the job was done. Overall, Atom Builders exceeded my expectations, and I highly recommend them for any roofing needs!"
Rancho Cucamonga, CA
Rancho Cucamonga, CA
Rancho Cucamonga, CA
Rancho Cucamonga, CA
Rancho Cucamonga, CA

+3

Response time7 hrs
Response rate93%
232 neighbors recently requested a quote
Certified Roofing
3.7(
72
)
Sealant for Roof - Apply

Serving Guasti, CA and surrounding areas

Approved

In business since 1997

Free estimates

Offers commercial services

"Jesse and his son, Chris, of Certified Roofing proved both reliable and honest, two men of integrity. In an industry too often populated by some rough characters known for their awkward relationships with the justice system, Jesse and Chris are men with whom you can entrust your home. I received three proposals for my roof repair, and Certified Roofing offered me the best price by a few hundred dollars. They arrived on time, did the work in a timely manner, and gave me a five-year warranty. They even removed an old satellite dish that had been an eye-sore on my house for years! I was quite impressed by them."
Response time11 hrs
Recommended by98%of homeowners
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