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Find Roof sealant application pros in Alamo

AirTight Construction, Inc.

4.09(
26
)
Approved Pro

AirTight Construction, Inc.

4.09(
26
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
23 years of experience

At Airtight Construction, Inc., we provide a wide range of services. We specialize in roofing and we service both residential and commercial clients. Headquartered in Concord, our fully equipped and professional staff can meet any construction, renovation, or retrofit need; and can serve as a single point of contact for even the most complex or time constrained project. We are committed to a responsive delivery of flawless craftsmanship combined with the industry's best customer service. We bring a proven expertise and time tested techniques to every job site. While most companies rely on sub contractors, we have in house crews to handle any job.

"I initially hired Airtight Construction to replace my roof around August of 2020. Once airtight construction started working on the roof they informed me it was going to cost more. I was never given an estimate or a contract for the additional work. To date still no bill, though they ask for money continuously. While we are waiting for a roof inspection they started a kitchen remodel around sept. 2020. They removed my kitchen cabinets, replaced a few windows and did some electrical work. I began to worry about the work being done and called the city of Martinez for an inspection. They said some of the work Airtight Construction had done needed to be fixed. Things like Electrical Panel, the windows all needed to be removed because there was no sheeting. There are structural questions about how some of the beams they installed are going to be supported.. I now know no permits were pulled for the kitchen remodel,. though I asked for permits several times. I am now having to spend more money to hire new contractors to complete the job."

Karen D on September 2020

At Airtight Construction, Inc., we provide a wide range of services. We specialize in roofing and we service both residential and commercial clients. Headquartered in Concord, our fully equipped and professional staff can meet any construction, renovation, or retrofit need; and can serve as a single point of contact for even the most complex or time constrained project. We are committed to a responsive delivery of flawless craftsmanship combined with the industry's best customer service. We bring a proven expertise and time tested techniques to every job site. While most companies rely on sub contractors, we have in house crews to handle any job.

"I initially hired Airtight Construction to replace my roof around August of 2020. Once airtight construction started working on the roof they informed me it was going to cost more. I was never given an estimate or a contract for the additional work. To date still no bill, though they ask for money continuously. While we are waiting for a roof inspection they started a kitchen remodel around sept. 2020. They removed my kitchen cabinets, replaced a few windows and did some electrical work. I began to worry about the work being done and called the city of Martinez for an inspection. They said some of the work Airtight Construction had done needed to be fixed. Things like Electrical Panel, the windows all needed to be removed because there was no sheeting. There are structural questions about how some of the beams they installed are going to be supported.. I now know no permits were pulled for the kitchen remodel,. though I asked for permits several times. I am now having to spend more money to hire new contractors to complete the job."

Karen D on September 2020


Avatar for Journey Builders

Journey Builders

4.56(
111
)
Approved Pro

Journey Builders

4.56(
111
)
Approved Pro
Customers say: Quick response
1285 local quotes requested
3 years of experience

CAP INC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you.

"This roofing job started off bad and continued to the finish. I wanted a professional with a few requirements. Be careful of original structure as it is prefabbed. The workers punched twelve holes in sheeting removing old roof material, requiring sheeting overlay. I requested that roofing nails not protrude through roof in patio area. They were protruding through the entire area. They left refuge sitting on the side of the driveway until I asked to have it removed. The one-week job turned into a two-month Odessey. The job was obviously a side job, piece-mealed together with little supervision little supervision. I am not confident the roof will not fail. prematurely fail. "

Larry D on October 2025

CAP INC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you.

"This roofing job started off bad and continued to the finish. I wanted a professional with a few requirements. Be careful of original structure as it is prefabbed. The workers punched twelve holes in sheeting removing old roof material, requiring sheeting overlay. I requested that roofing nails not protrude through roof in patio area. They were protruding through the entire area. They left refuge sitting on the side of the driveway until I asked to have it removed. The one-week job turned into a two-month Odessey. The job was obviously a side job, piece-mealed together with little supervision little supervision. I am not confident the roof will not fail. prematurely fail. "

Larry D on October 2025


Avatar for Frontline Roofing, Inc.

Frontline Roofing, Inc.

4.69(
27
)
Approved Pro

Frontline Roofing, Inc.

4.69(
27
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
384 local quotes requested

At FRONTLINE ROOFING INC, we're all about delivering top-notch quality in everything we do. Our values are simple yet powerful: fairness, honesty, and taking personal responsibility. What truly makes us stand out is our dedication to not just meeting, but exceeding customer expectations.But above all, it's our genuine care for our customers that drives us: we listen, we understand, and we make sure their needs are at the heart of everything we do.

"Great"

Gopal Y on August 2024

At FRONTLINE ROOFING INC, we're all about delivering top-notch quality in everything we do. Our values are simple yet powerful: fairness, honesty, and taking personal responsibility. What truly makes us stand out is our dedication to not just meeting, but exceeding customer expectations.But above all, it's our genuine care for our customers that drives us: we listen, we understand, and we make sure their needs are at the heart of everything we do.

"Great"

Gopal Y on August 2024


Avatar for Atom Builders, Inc.

Atom Builders, Inc.

4.77(
73
)
Approved Pro

Atom Builders, Inc.

4.77(
73
)
Approved Pro
Customers say: Quick response
230 local quotes requested
22 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your project as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Great work thank you ATOM BUILDERS! Work was done quickly and to my satisfaction, they came out a week before the rain storm and promised that my leaking roof will be waterproofed before the rains, they did an outstanding job and finished sooner then promised!! Highly recommend "

Sandra T on November 2025

We are a locally owned and operated company that values honesty and integrity, and treats your project as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Great work thank you ATOM BUILDERS! Work was done quickly and to my satisfaction, they came out a week before the rain storm and promised that my leaking roof will be waterproofed before the rains, they did an outstanding job and finished sooner then promised!! Highly recommend "

Sandra T on November 2025


Avatar for Lifetime Roofing & Renovation, Inc.

Lifetime Roofing & Renovation, Inc.

4.71(
143
)
Approved Pro

Lifetime Roofing & Renovation, Inc.

4.71(
143
)
Approved Pro
Super Service Award
Customers say: Super punctual
302 local quotes requested
15 years of experience

"Looking for a trusted roofing contractor in San Jose? Lifetime Roofing & Renovation, Inc. has been San Jose’s go-to roofing company since 2010. We provide expert roof repair, roof replacement, and new roof installation services for both homes and businesses. Whether it’s fixing leaks, replacing old shingles, or handling complete roof overhauls, no job is too big or small. Our experienced team ensures every roof is built to last — protecting your property and your investment. Call us today for a free, no-obligation estimate and speak directly with a roofing expert!"

"Needed to have our roof replaced. Lifetime Roofing is great! Gui from Lifetime stopped by the same day I called in for an estimate, and he was able to get us a very competitive price. Gui regualrly checked in to provide us updates on the status (permitting, install progress, etc.) and to see if we had any questions or issues. The crew was fantastic. Clean and quick. The best part? The City of Mt. View told Lifetime to install 20 vents on a 2,500 square foot roof!!! Lifetime spent time with the inspector and got that down to 5 vents and ridge vents. Very helpful! Overall, a wonderful experience."

Peter S on July 2025

"Looking for a trusted roofing contractor in San Jose? Lifetime Roofing & Renovation, Inc. has been San Jose’s go-to roofing company since 2010. We provide expert roof repair, roof replacement, and new roof installation services for both homes and businesses. Whether it’s fixing leaks, replacing old shingles, or handling complete roof overhauls, no job is too big or small. Our experienced team ensures every roof is built to last — protecting your property and your investment. Call us today for a free, no-obligation estimate and speak directly with a roofing expert!"

"Needed to have our roof replaced. Lifetime Roofing is great! Gui from Lifetime stopped by the same day I called in for an estimate, and he was able to get us a very competitive price. Gui regualrly checked in to provide us updates on the status (permitting, install progress, etc.) and to see if we had any questions or issues. The crew was fantastic. Clean and quick. The best part? The City of Mt. View told Lifetime to install 20 vents on a 2,500 square foot roof!!! Lifetime spent time with the inspector and got that down to 5 vents and ridge vents. Very helpful! Overall, a wonderful experience."

Peter S on July 2025


Avatar for Alpha Roofing Group, Inc.

Alpha Roofing Group, Inc.

5.00(
4
)
Approved Pro

Alpha Roofing Group, Inc.

5.00(
4
)
Approved Pro
Customers say: Quick response
119 local quotes requested
2 years of experience

At Alpha Roofing Group, we are a trusted Bay Area roofing company specializing in high-quality residential and commercial roofing solutions. With years of experience serving the unique architectural styles and weather conditions of Northern California, we provide expert roof replacements, repairs, inspections, and maintenance. Our team is committed to delivering exceptional craftsmanship using top-grade materials, including tile, shingle, metal, and flat roofing systems. We prioritize safety, energy efficiency, and long-lasting results—backed by strong warranties and transparent service. As a locally owned and operated business, we pride ourselves on our reputation for reliability, integrity, and personalized customer care. Whether you're protecting your family home or managing a commercial property, Alpha Roofing is here to keep your roof—and your peace of mind—intact. Established since 2013 Lifetime Warranty Financing Available

"Alpha Roofing will be my go to from now on. They were fast, professional and efficient. They respected my business hours and worked with my budget. Work was perfect. Team is great from the phone calls to the appointment to the sells. 10/10!"

Isaiah L on October 2025

At Alpha Roofing Group, we are a trusted Bay Area roofing company specializing in high-quality residential and commercial roofing solutions. With years of experience serving the unique architectural styles and weather conditions of Northern California, we provide expert roof replacements, repairs, inspections, and maintenance. Our team is committed to delivering exceptional craftsmanship using top-grade materials, including tile, shingle, metal, and flat roofing systems. We prioritize safety, energy efficiency, and long-lasting results—backed by strong warranties and transparent service. As a locally owned and operated business, we pride ourselves on our reputation for reliability, integrity, and personalized customer care. Whether you're protecting your family home or managing a commercial property, Alpha Roofing is here to keep your roof—and your peace of mind—intact. Established since 2013 Lifetime Warranty Financing Available

"Alpha Roofing will be my go to from now on. They were fast, professional and efficient. They respected my business hours and worked with my budget. Work was perfect. Team is great from the phone calls to the appointment to the sells. 10/10!"

Isaiah L on October 2025


Avatar for Clear View Roofing & Construction

Clear View Roofing & Construction

5.00(
27
)
Approved Pro

Clear View Roofing & Construction

5.00(
27
)
Approved Pro
Customers say: Quick response
480 local quotes requested
2 years of experience

Clear View Roofing 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.

"Rob & his crew showed up on time today and got right to work. They kept us informed & updated on all progress of our project. One aspect of doing business with this company that I really appreciated was that Rob always picked up the phone and had answers and info for me. Awesome crew."

Ruben R on September 2024

Clear View Roofing 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.

"Rob & his crew showed up on time today and got right to work. They kept us informed & updated on all progress of our project. One aspect of doing business with this company that I really appreciated was that Rob always picked up the phone and had answers and info for me. Awesome crew."

Ruben R on September 2024


Avatar for Universal Builder Co. - San Jose

Universal Builder Co. - San Jose

4.39(
41
)
Approved Pro

Universal Builder Co. - San Jose

4.39(
41
)
Approved Pro
Customers say: Quick response
291 local quotes requested
28 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. With over 20 years of experience in the roofing and general construction, our roofing team can quickly identify roofing issues to repair. As with all of our services, we guarantee our work and promise to repair the issue the right way the first time, every time. We look forward to earning your business!

"Quick estimate friendly people job was done quick"

Edward H on October 2024

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. With over 20 years of experience in the roofing and general construction, our roofing team can quickly identify roofing issues to repair. As with all of our services, we guarantee our work and promise to repair the issue the right way the first time, every time. We look forward to earning your business!

"Quick estimate friendly people job was done quick"

Edward H on October 2024


Avatar for ATOM BUILDERS INC

ATOM BUILDERS INC

4.75(
69
)
Approved Pro

ATOM BUILDERS INC

4.75(
69
)
Approved Pro
Customers say: Quick response
218 local quotes requested
2 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your project as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Professional - Cordial - Timely. Highest thanks to Greg, Nick, Jake, Art, Arthur for starting process on a SUNDAY! and finishing top-quality just several days later!"

Fred O on October 2025

We are a locally owned and operated company that values honesty and integrity, and treats your project as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Professional - Cordial - Timely. Highest thanks to Greg, Nick, Jake, Art, Arthur for starting process on a SUNDAY! and finishing top-quality just several days later!"

Fred O on October 2025


Avatar for Diamond Ridge Roofing Systems

Diamond Ridge Roofing Systems

5.00(
6
)
Approved Pro

Diamond Ridge Roofing Systems

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

We offer free inspections/estimates to fix leaks, install, repair and replace a large variety of commercial and residential roofing and waterproofing systems such as: asphalt shingles, wood shingles and shakes, tiles, metal, torch applied modified bitumen cap sheets, elastomeric coatings, silicones, thermoplastic and thermoset single-ply membranes and more.

"Went great and quick. True pro’s."

Shane S on November 2024

We offer free inspections/estimates to fix leaks, install, repair and replace a large variety of commercial and residential roofing and waterproofing systems such as: asphalt shingles, wood shingles and shakes, tiles, metal, torch applied modified bitumen cap sheets, elastomeric coatings, silicones, thermoplastic and thermoset single-ply membranes and more.

"Went great and quick. True pro’s."

Shane S on November 2024

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FAQs for roof sealant application projects in Alamo, 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 Alamo, CA homeowners’ guide to roof sealant applications

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