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Roof sealant application pros in Altadena

Avatar for Harbor Westlake Roofing
Harbor Westlake Roofing
PO Box 593
5.00(
8
)
Approved Pro
Harbor Westlake Roofing
PO Box 593
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Here at Harbor Lake Roofing we are a fully licensed nad insured roofing company working with residential and commercial properties. No job is too large or small for us and we pride ourselves on our craftmanship and ability to keep jobs running smoothly. Call now for a free estimate.

"Danny was honest and very professional."

Chris F on April 2024

Here at Harbor Lake Roofing we are a fully licensed nad insured roofing company working with residential and commercial properties. No job is too large or small for us and we pride ourselves on our craftmanship and ability to keep jobs running smoothly. Call now for a free estimate.

"Danny was honest and very professional."

Chris F on April 2024


Aceves Roofing Services, Inc.
12508 Bromwich Street
4.67(
3
)
Approved Pro
Aceves Roofing Services, Inc.
12508 Bromwich Street
4.67(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 years of experience

With over 25 years serving the area, we are your locally owned and operated roofing company. We are the company you can trust. We walk you through each step of the process, including if your property is filing for insurance coverage. If you are repairing or replacing your roof, be sure to call Aceves Roofing Services Inc. first. Emergency Repairs Welcome!

"They examined and patched the roof on my 100 year old house. I think that when we move the house will be replaced."

Shelley H on November 2020

With over 25 years serving the area, we are your locally owned and operated roofing company. We are the company you can trust. We walk you through each step of the process, including if your property is filing for insurance coverage. If you are repairing or replacing your roof, be sure to call Aceves Roofing Services Inc. first. Emergency Repairs Welcome!

"They examined and patched the roof on my 100 year old house. I think that when we move the house will be replaced."

Shelley H on November 2020


Cal State Roofing
702 Monroe Way
4.33(
90
)
Approved Pro
Cal State Roofing
702 Monroe Way
4.33(
90
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
39 years of experience

Cal State Roofing is a family-owned and -operated business. We take pride in every job we do and guarantee 100% customer satisfaction. Call now for a free estimate! No job is too large or too small. We will meet or beat any company's price as long as we are matching apples to apples.. Just Call for your free Estimate

"Partial replacement of flat roof hot mopped, professionally completed. I would hire again if necessary."

Lloyd B on March 2020

Cal State Roofing is a family-owned and -operated business. We take pride in every job we do and guarantee 100% customer satisfaction. Call now for a free estimate! No job is too large or too small. We will meet or beat any company's price as long as we are matching apples to apples.. Just Call for your free Estimate

"Partial replacement of flat roof hot mopped, professionally completed. I would hire again if necessary."

Lloyd B on March 2020


Avatar for Lifetime Roofing & Renovation (LA)
Lifetime Roofing & Renovation (LA)
333 Cobalt Way
4.55(
81
)
Approved Pro
Lifetime Roofing & Renovation (LA)
333 Cobalt Way
4.55(
81
)
Approved Pro
Customers say: Quick response
40 local quotes requested
15 years of experience

Los Angeles Roofing Contractors at Lifetime Roofing & Renovation are the experts you need to fix that leak or replace that old and worn-out roof. We’ve been providing Los Angeles, CA homeowners with top-notch roofing services for nearly a decade. Our roofing services also extend to the SoCal and surrounding areas. From small leaks to large-scale damage, our skilled contractors can handle any problem you might have with your roof. Whether you have a wood shake and shingle, metal, or tile roof, we have the experience and expertise for master craft roofing. We’ll deliver a long-term solution that fits your needs and budget without compromising quality!

"Todo el timpo en un contrato tenemos que espricarle al dueño porque al quitar el techo abes en unas casa ay madera podrida y muchas de las bese. Muchas compañías lo leesprica.al dueño que.tabin toda la madera podrida y abese ay es otro dinero estra y mucha de las bese las compañías domas quitan domas el techo y toda la madera podrida ai la dejan y cuando sintan el techo así quedan pero apardelo años se pone débil y peligran las personas de la casa porque se puede caer osipasa un pequeño viento fuerte ai barata el peligro por eso seledise.al dueño osele enSeña a foto paque mire como está el techo yai.laberda ganó lo que cobre por el techo y lo que gane por cambiarle las maderas y dos trabajos en uno y lo mismo cobre yagradesido porque tiene casa por tanto yun poquito caro pero bien echo el contento y yo feliz"

M H on April 2025

Los Angeles Roofing Contractors at Lifetime Roofing & Renovation are the experts you need to fix that leak or replace that old and worn-out roof. We’ve been providing Los Angeles, CA homeowners with top-notch roofing services for nearly a decade. Our roofing services also extend to the SoCal and surrounding areas. From small leaks to large-scale damage, our skilled contractors can handle any problem you might have with your roof. Whether you have a wood shake and shingle, metal, or tile roof, we have the experience and expertise for master craft roofing. We’ll deliver a long-term solution that fits your needs and budget without compromising quality!

"Todo el timpo en un contrato tenemos que espricarle al dueño porque al quitar el techo abes en unas casa ay madera podrida y muchas de las bese. Muchas compañías lo leesprica.al dueño que.tabin toda la madera podrida y abese ay es otro dinero estra y mucha de las bese las compañías domas quitan domas el techo y toda la madera podrida ai la dejan y cuando sintan el techo así quedan pero apardelo años se pone débil y peligran las personas de la casa porque se puede caer osipasa un pequeño viento fuerte ai barata el peligro por eso seledise.al dueño osele enSeña a foto paque mire como está el techo yai.laberda ganó lo que cobre por el techo y lo que gane por cambiarle las maderas y dos trabajos en uno y lo mismo cobre yagradesido porque tiene casa por tanto yun poquito caro pero bien echo el contento y yo feliz"

M H on April 2025


Avatar for Handy Roof Solutions
Handy Roof Solutions
4725 E ROSE ST
5.00(
3
)
Approved Pro
Handy Roof Solutions
4725 E ROSE ST
5.00(
3
)
Approved Pro
10 local quotes requested
1 years of experience

Handy Roof Solutions is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Miguel and his crew were not only professional but efficient! He inspected my roof that had a leak, and found that the previous fake-roofer did a horrible job in sealing a s fixing the problem. Miguel and his crew found other areas that need repair and was proactive in telling me instead of overlooking it. The work was done in a timely manner and they left the area clean. It is nice working with a professional licensed roofer who knew what he was doing. I will definitely hire in the future."

R. A on February 2025

Handy Roof Solutions is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Miguel and his crew were not only professional but efficient! He inspected my roof that had a leak, and found that the previous fake-roofer did a horrible job in sealing a s fixing the problem. Miguel and his crew found other areas that need repair and was proactive in telling me instead of overlooking it. The work was done in a timely manner and they left the area clean. It is nice working with a professional licensed roofer who knew what he was doing. I will definitely hire in the future."

R. A on February 2025


Avatar for MUNOZ ROOF AND ROOF REMOVAL
MUNOZ ROOF AND ROOF REMOVAL
651 S Palm St #B
5.00(
1
)
Approved Pro
MUNOZ ROOF AND ROOF REMOVAL
651 S Palm St #B
5.00(
1
)
Approved Pro
6 years of experience
Free onsite estimate

Munoz Roof and Roof Removal is committed to providing superior quality and unparalleled customer service in all aspects of our business. Communication, transparency, quality, and your trust are very important to us! We believe every client contributes to the success and growth of our company. Earning your trust is more important to us than earning your business. We strive to stand above the competition by providing you with a quality consultation from an expert roofer, not a high pressure salesman. Our goal is to shake the roofing world by bringing in the best talent, materials, pricing, warranties, and staff available in the industry in order to respectfully earn your business. In return, we will set the standard — and change the way people feel about the roofing industry!

Munoz Roof and Roof Removal is committed to providing superior quality and unparalleled customer service in all aspects of our business. Communication, transparency, quality, and your trust are very important to us! We believe every client contributes to the success and growth of our company. Earning your trust is more important to us than earning your business. We strive to stand above the competition by providing you with a quality consultation from an expert roofer, not a high pressure salesman. Our goal is to shake the roofing world by bringing in the best talent, materials, pricing, warranties, and staff available in the industry in order to respectfully earn your business. In return, we will set the standard — and change the way people feel about the roofing industry!


Avatar for CoastDesign & Build, Inc.
CoastDesign & Build, Inc.
6602 El Cajon Blvd Suite #D
New on HomeAdvisorNew on Angi
Approved Pro
CoastDesign & Build, Inc.
6602 El Cajon Blvd Suite #D
New on AngiNew on HomeAdvisor
Approved Pro
206 local quotes requested
22 years of experience

Coastdesign & Build is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 5 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

Coastdesign & Build is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 5 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!


Avatar for Superior Roofing Systems
Superior Roofing Systems
360 East 1st St
5.00(
5
)
Approved Pro
Superior Roofing Systems
360 East 1st St
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
606 local quotes requested

Family owned & operated. No subcontracting. Our roofing crew have been apart of the company for 16+ years specializing in all Roofing Materials. We have the expertise and knowledge to provide a professional installation. Fully Licensed, Insured Bonded, including California Workers State Fund Compensation. We provide Free Estimates with photos of roof conditions/concern areas to allow you a full view of existing issues and completed work. Financing available.

"Superior Roofing did a beautiful job. They were very professional, on schedule, and cleaned up daily. I would highly recommend them. Jason was the BEST."

Debby C on December 2021

Family owned & operated. No subcontracting. Our roofing crew have been apart of the company for 16+ years specializing in all Roofing Materials. We have the expertise and knowledge to provide a professional installation. Fully Licensed, Insured Bonded, including California Workers State Fund Compensation. We provide Free Estimates with photos of roof conditions/concern areas to allow you a full view of existing issues and completed work. Financing available.

"Superior Roofing did a beautiful job. They were very professional, on schedule, and cleaned up daily. I would highly recommend them. Jason was the BEST."

Debby C on December 2021


Avatar for Roofing Angels
Roofing Angels
4869 Topanga Canyon Bl. #4
5.00(
16
)
Approved Pro
Roofing Angels
4869 Topanga Canyon Bl. #4
5.00(
16
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
547 local quotes requested

We offer a variety of roofing services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"I don’t normally write reviews, but I had such a great experience with Roofing Angels that I had to share. Chuck was amazing—from the first meeting, he made sure I understood everything about the process and helped me choose the right materials for my home. No pushy sales tactics, just honest advice. His crew was super professional and hardworking. They showed up early, worked long hours, and always made sure to clean up at the end of the day. I was expecting a lot of noise and disruption, but honestly, it wasn’t bad at all. Now that the job is done, I can’t stop admiring my new roof! It looks perfect, and I feel a lot better knowing I won’t have to worry about leaks anymore. If you’re looking for a stress-free roofing experience with people who actually care, I can’t recommend Roofing Angels enough!"

George M on February 2025

We offer a variety of roofing services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"I don’t normally write reviews, but I had such a great experience with Roofing Angels that I had to share. Chuck was amazing—from the first meeting, he made sure I understood everything about the process and helped me choose the right materials for my home. No pushy sales tactics, just honest advice. His crew was super professional and hardworking. They showed up early, worked long hours, and always made sure to clean up at the end of the day. I was expecting a lot of noise and disruption, but honestly, it wasn’t bad at all. Now that the job is done, I can’t stop admiring my new roof! It looks perfect, and I feel a lot better knowing I won’t have to worry about leaks anymore. If you’re looking for a stress-free roofing experience with people who actually care, I can’t recommend Roofing Angels enough!"

George M on February 2025


Avatar for Citium Roofing Solutions
Citium Roofing Solutions
372 Arden Ave Unit 108
5.00(
6
)
Approved Pro
Citium Roofing Solutions
372 Arden Ave Unit 108
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
875 local quotes requested

Welcome to Citium Roofing Solutions, your trusted roofing contractor serving Southern California. Our expert team of roofers specializes in a full spectrum of roofing services for both residential and commercial properties. Whether you need a roof repair, installation, or replacement, our skilled roofers are dedicated to delivering top-notch solutions tailored to your needs. As your local roofing contractor, we're committed to providing prompt and reliable service, ensuring your satisfaction with every project. Contact us today for a free estimate and discover why we're the go-to roofer near you! Discounts for Senior Citizens and Veterans!

"The job was scheduled and went as planned. Hank from Citium guided us through the whole process and was very responsive throughout the project."

Norma M on February 2025

Welcome to Citium Roofing Solutions, your trusted roofing contractor serving Southern California. Our expert team of roofers specializes in a full spectrum of roofing services for both residential and commercial properties. Whether you need a roof repair, installation, or replacement, our skilled roofers are dedicated to delivering top-notch solutions tailored to your needs. As your local roofing contractor, we're committed to providing prompt and reliable service, ensuring your satisfaction with every project. Contact us today for a free estimate and discover why we're the go-to roofer near you! Discounts for Senior Citizens and Veterans!

"The job was scheduled and went as planned. Hank from Citium guided us through the whole process and was very responsive throughout the project."

Norma M on February 2025

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Roof sealant applications FAQs

A roof coating system lasts between 10 and 20 years. With a premium coating and regular maintenance—like inspections and touch-ups—your roof will stay protected against weather damage and water intrusion. This enhances its durability and preserves its structural integrity throughout its lifespan. Make sure to keep in contact with a roof coating pro so that you don’t miss regulating resealing. 

You should recoat or reseal your roof every four to six years. Maintaining a consistent recoating schedule preserves the integrity of the protective seal and prevents moisture penetration and material degradation. High-quality, built-up roof systems require this interval, and if an EPDM roof begins to leak, replacing the coating becomes necessary to restore full protection.

A roof coating can seal small cracks and stop minor water infiltration, helping to prevent roof leaks. While the coating enhances the roof’s durability and prevents early signs of leakage, it does not replace the need for full-scale repairs when substantial structural damage exists. Professional evaluation and repair are required to resolve significant water intrusion and ensure your roof retains long-lasting protection.

The homeowners guide to roof sealant applications
From average costs to expert advice, get all the answers you need to get your job done.
standing seam metal roof on a house
Apr 30, 2025
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Budget for standing seam metal roof costs based on factors such as roof size, metal type, lock type, panel width, accessibility, permits, labor, and more.
flat roof home with rubber membrane roofing installed
Apr 29, 2025
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Budget for rubber roof costs based on factors such as roof size, pitch, membrane type, labor, permits, accessibility, installation system, removal, and more.
professional spreading sealant on flat roof with roller
Apr 25, 2025
Apr 25, 2025
Roof coating costs depend on the type of coating you choose. Options include silicone, bitumen, acrylic, and liquid rubber, among others.
professional installing flat roof on home
Apr 27, 2025
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Budget for flat roof replacement costs based on factors such as roof type, material, potential repairs, labor, accessibility, and more.
A dark roof on a brick house
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Budget for spray foam roofing costs based on factors such as foam density, cell type, materials, permits, overages, labor, and more.
A house with slate roof tiles
Apr 18, 2025
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Budget for slate roof repair costs based on factors such as project size, type of repairs required, materials, labor, ongoing maintenance, and more.
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