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Find 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


Avatar for Howard & Sons

Howard & Sons

1802 Commercenter W Unit C/D
4.51(
36
)
Approved Pro

Howard & Sons

1802 Commercenter W Unit C/D
4.51(
36
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
9 years of experience

With over 20 years of experience, we bring our expertise to every project. We are a family owned and operated company, and operate with the highest level of integrity, and promise a service that is professional and prompt, with a meticulous attention to detail. Call today for an estimate!

"Excellent. They a good job and on time. The crew was very courteous and polite."

William W on September 2021

With over 20 years of experience, we bring our expertise to every project. We are a family owned and operated company, and operate with the highest level of integrity, and promise a service that is professional and prompt, with a meticulous attention to detail. Call today for an estimate!

"Excellent. They a good job and on time. The crew was very courteous and polite."

William W on September 2021


Avatar for Confirmed Roofing Experts

Confirmed Roofing Experts

6442 Platt Ave Suite 343
5.00(
31
)
Approved Pro

Confirmed Roofing Experts

6442 Platt Ave Suite 343
5.00(
31
)
Approved Pro
Customers say: Quick response
190 local quotes requested
1 years of experience

welcome to confirmed roofing experts We are a locally owned and operated company that values honesty and integrity, treating your home with the same care and respect as we would do to our own home. We offer a variety of roofing services like roof repair ,roof replacement ,tile roof reset , roof patch , metal roofs installations, commercial roofing ,roof inspections ,roof seal ,roof silicone coating ,roof maintenance and more. We pride ourselves on offering competitive pricing and affordable solutions while maintaining a keen attention to details on every project we undertake. we are committed to ensuring your complete satisfaction! call today to schedule your free estimate 888 - 576 -4820 !

"On and the team at Confirmed Roofing Experts are the best in the business! I needed a new roof installation, and they made the process completely stress-free. From the initial estimate to the final cleanup, they handled everything with professionalism and care. My new roof looks stunning, and I’m confident it will last for many years. I highly recommend their services to anyone in need of roofing work!"

Robert M B on July 2025

welcome to confirmed roofing experts We are a locally owned and operated company that values honesty and integrity, treating your home with the same care and respect as we would do to our own home. We offer a variety of roofing services like roof repair ,roof replacement ,tile roof reset , roof patch , metal roofs installations, commercial roofing ,roof inspections ,roof seal ,roof silicone coating ,roof maintenance and more. We pride ourselves on offering competitive pricing and affordable solutions while maintaining a keen attention to details on every project we undertake. we are committed to ensuring your complete satisfaction! call today to schedule your free estimate 888 - 576 -4820 !

"On and the team at Confirmed Roofing Experts are the best in the business! I needed a new roof installation, and they made the process completely stress-free. From the initial estimate to the final cleanup, they handled everything with professionalism and care. My new roof looks stunning, and I’m confident it will last for many years. I highly recommend their services to anyone in need of roofing work!"

Robert M B on July 2025


Avatar for ESSENTIAL BUILDERS INC

ESSENTIAL BUILDERS INC

11336 Camarillo St STE 300
4.73(
15
)
Approved Pro

ESSENTIAL BUILDERS INC

11336 Camarillo St STE 300
4.73(
15
)
Approved Pro
Super Service Award
Customers say: Quick response
36 local quotes requested
3 years of experience

With over 30 years of experience, Essential Builder Inc 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. Call us today!

"Great. Efficient. Timely"

David L on July 2025

With over 30 years of experience, Essential Builder Inc 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. Call us today!

"Great. Efficient. Timely"

David L on July 2025


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 Cabrera Roofing

Cabrera Roofing

7441 Riverton Ave
4.57(
69
)
Approved Pro

Cabrera Roofing

7441 Riverton Ave
4.57(
69
)
Approved Pro
Customers say: True professional
16 local quotes requested
18 years of experience

We are a Roofing Contractor; we hold a C-39 and General B License. We are truly a family operated business. My name is Alan Cabrera, and my team is made up by, my father, brothers, and brother-in-law. We are a family of well-trained roofers. We all have common goal to make sure every customer is satisfied, and our work is the best possible. We have fair prices and use the best material the industry has to offer. No job is too small or too big for Cabrera Roofing to handle. We do not sub-contract any job out so you will get the most personal experience in completing your roof. Always here to serve you on any of your roofing needs,

"They were able to close the skylight, and will come back to replace it when we are ready to schedule."

Caroline V on November 2024

We are a Roofing Contractor; we hold a C-39 and General B License. We are truly a family operated business. My name is Alan Cabrera, and my team is made up by, my father, brothers, and brother-in-law. We are a family of well-trained roofers. We all have common goal to make sure every customer is satisfied, and our work is the best possible. We have fair prices and use the best material the industry has to offer. No job is too small or too big for Cabrera Roofing to handle. We do not sub-contract any job out so you will get the most personal experience in completing your roof. Always here to serve you on any of your roofing needs,

"They were able to close the skylight, and will come back to replace it when we are ready to schedule."

Caroline V on November 2024


Avatar for PREMIER ROOFING SOLUTIONS INC

PREMIER ROOFING SOLUTIONS INC

10219 Omelveny Ave 1/2
5.00(
1
)
Approved Pro

PREMIER ROOFING SOLUTIONS INC

10219 Omelveny Ave 1/2
5.00(
1
)
Approved Pro
1 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Premiere was absolutely amazing! Carlos did two projects for us - coating our house roof with silicone and coating our office building with silicone. He was so thoughtful and did such a careful job. The pipes coming out of the roof often develop cracks over the years so they double-coated them to make sure they were solid. One of the things my wife is particular about is cleanup after the job. They came in afterwards and pressure washed our deck and cleaned the pool to remove any debris so everything was spotless. Part of the quote is to come in once a year for three years and inspect the roof so we are confident everything will remain in good shape. AND they were very reasonable! I can't recommend Carlos and his crew more highly."

Randall W on August 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Premiere was absolutely amazing! Carlos did two projects for us - coating our house roof with silicone and coating our office building with silicone. He was so thoughtful and did such a careful job. The pipes coming out of the roof often develop cracks over the years so they double-coated them to make sure they were solid. One of the things my wife is particular about is cleanup after the job. They came in afterwards and pressure washed our deck and cleaned the pool to remove any debris so everything was spotless. Part of the quote is to come in once a year for three years and inspect the roof so we are confident everything will remain in good shape. AND they were very reasonable! I can't recommend Carlos and his crew more highly."

Randall W on August 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 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
258 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 Sandoval Roofing And Repairs

Sandoval Roofing And Repairs

3117 Thoroughbred Street
5.00(
6
)
Approved Pro

Sandoval Roofing And Repairs

3117 Thoroughbred Street
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1481 local quotes requested

At Sandoval Roofing we specialize in residential and commercial roofing. With over 30 years of experience in the building industry, we have established ourselves as a reliable and trusted contractor in the region. From stylish tile installations to durable shingle applications, we've got your roof covered. Our skilled team excels at efficient and effective roof repairs, ensuring your peace of mind. Trust us for top-notch craftsmanship, quality materials, and customer satisfaction.   Our clients' satisfaction is our top priority. We work closely with them to ensure that their vision is fully realized. Communication is key, do not hesitate to contact us. We are happy to help you.

"If I could give a 10 out of 5 stars I would. Argo from Sandoval roofing came out and gave me a quote which was very reasonable. After getting a few more quotes, we decided to go with Sandoval roofing to completely redo our roof and patio (new sheathing, paper, and tiles). We decided to go with them because they were quick to respond through call and text (even late at night), gave a good price, are licensed and bonded through CSLB, and have roofers with 25+ years experience (their roofer Francisco was awesome) They were able to start within a week of giving the quote, and finished the whole job in 4 days. The two bosses were on site to overview the job which I appreciated as well. Overall I could not be happier with this company. With all the bad contractors there are now a days it’s hard to find someone who does quality work at a good price, but Sandoval roofing did so. Sorry for the ramble, but they finished my roof today and I’m very pleased with it so I thought I’d share my whole experience."

Zachary H on June 2025

At Sandoval Roofing we specialize in residential and commercial roofing. With over 30 years of experience in the building industry, we have established ourselves as a reliable and trusted contractor in the region. From stylish tile installations to durable shingle applications, we've got your roof covered. Our skilled team excels at efficient and effective roof repairs, ensuring your peace of mind. Trust us for top-notch craftsmanship, quality materials, and customer satisfaction.   Our clients' satisfaction is our top priority. We work closely with them to ensure that their vision is fully realized. Communication is key, do not hesitate to contact us. We are happy to help you.

"If I could give a 10 out of 5 stars I would. Argo from Sandoval roofing came out and gave me a quote which was very reasonable. After getting a few more quotes, we decided to go with Sandoval roofing to completely redo our roof and patio (new sheathing, paper, and tiles). We decided to go with them because they were quick to respond through call and text (even late at night), gave a good price, are licensed and bonded through CSLB, and have roofers with 25+ years experience (their roofer Francisco was awesome) They were able to start within a week of giving the quote, and finished the whole job in 4 days. The two bosses were on site to overview the job which I appreciated as well. Overall I could not be happier with this company. With all the bad contractors there are now a days it’s hard to find someone who does quality work at a good price, but Sandoval roofing did so. Sorry for the ramble, but they finished my roof today and I’m very pleased with it so I thought I’d share my whole experience."

Zachary H on June 2025

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FAQs for roof sealant application projects in Altadena, CA

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 Altadena, CA homeowners’ guide to roof sealant applications

From average costs to expert advice, get all the answers you need to get your job done.

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