Attic Insulation in San Jose, CA

Elevate Comfort & Efficiency With Clean Roofing

Clean Roofing helps Bay Area homeowners slash energy bills and enjoy year‑round comfort with properly installed roof‑insulation systems. The San Jose area’s Mediterranean climate, mild winters and hot summers means attics can trap heat in summer and leak warmth in winter.

Inadequate insulation forces your HVAC system to work harder and wastes money. Our experienced roofing and insulation crews design solutions that suit your home, your budget and our local climate.

Benefits of Proper Roof‑Insulation in San jose & Bay Area

Proper roof insulation helps regulate indoor temperatures, reduce energy waste, and improve overall home comfort. It protects your roof, lowers utility bills, and keeps your living spaces comfortable year-round.

Signs Your San Jose Home Needs Better Insulation

If you’re noticing any of the warning signs below, your home may be losing energy, costing you money and comfort. Schedule a free insulation assessment with Clean Roofing to determine the best solution.

High bills despite moderate weather

Hot or cold spots in upstairs rooms or attic

Drafts or temperature swings between rooms

Visible mold, mildew or pest infestation in the attic

Sagging, damp or discolored attic insulation

Ice dams forming along the eaves during winter

Request a Free Estimate

Ready to improve your home’s efficiency and comfort? Our experts will assess your current insulation, identify problem areas and recommend the most cost‑effective solutions.

High-Performanc Insulation Enhancements

Clean Roofing uses industry-leading materials and modern installation techniques to ensure your home stays energy-efficient, durable, and protected year-round. From premium insulation upgrades to high-performance roof underlayments, our solutions are engineered to last in the Bay Area’s demanding climate.

Blown-In Insulation

Clean Roofing installs blown-in insulation for superior energy efficiency and comfort. It reduces heat loss, prevents condensation, and delivers excellent fire resistance—all while providing the best value for your home.

Radiant Barriers

Our radiant barriers reflect heat away from your home, lowering attic temperatures and improving overall energy efficiency. They help keep your house cooler in summer and reduce strain on your HVAC system.

Plywood or OSB

We use high-quality OSB decking paired with our premium synthetic underlayment for long-lasting roof protection. This modern system improves waterproofing, increases durability, and provides extended warranty coverage.

WHAT OUR CLIENTS SAY ABOUT CLEAN ROOFING

Our clients appreciate our skilled technicians, clear communication, and attention to detail, values that make us one of the top-rated roofing companies in San Jose. Whether it’s a small leak repair or a large-scale solar roofing project, we approach every job with the same professionalism and care.

Google Reviews

4.5

Based on 45 Reviews

Marcelo San Martín

4 days ago

Exceptional Quality, Professional Team, and Outstanding Results! We recently had our roof replaced by Clean Roofing, and I cannot recommend them highly enough. Our home has a complex second-story roof, but their team handled the entire project with absolute precision and professionalism from start to finish. The project was completed right on schedule, and every single promise made during the initial consultation was kept. The crew was exceptionally skilled, hard-working, and respectful of our property. The finished roof looks phenomenal and has completely transformed the look of our home. The quality of their work speaks for itself—several of our neighbors stopped by to compliment the roof and ask for their contact information, and one neighbor has already hired them for a project of their own! If you want a seamless experience and flawless workmanship, Clean Roofing is the company to call.

Max Liu

1 month ago

Clean Roofing is so efficient. I saw them work on my neighbor’s roof and asked them to replace mine. I also asked my neighbor about the experience; he highly recommends them. My roof was done in a few days, and I recommend this team as well. The workers Tony and his team, their supervisor Rodrigo, and the boss on the phone are all friendly and easy to communicate.

Baklava Tatli

2 months ago

We recently hired Clean Roofing to replace our 30-year-old roof, and we could not be happier with the results. The crew was exceptionally friendly, professional, and thorough—finishing the entire project in just 3 days, exactly as projected. Sergei was fantastic: he speaks fluent English, communicated clearly throughout every stage, and took the time to patiently explain all the work being done. A few highlights from our experience: Transparency: They found and repaired some dry rot, documenting all damaged areas with photos so we could see the issues firsthand. Gutter Work: They installed gutter screens, adjusted the slope to ensure proper drainage away from the house, and shared photos of the freshly cleaned gutters. Quality & Visuals: Sergei even provided drone photos of the completed roof, and the job passed city inspection on the very first try. A quick tip for homeowners: Do a quick walk-around of the perimeter once the crew wraps up to make sure no stray tools or materials were accidentally left behind. Overall, top-notch craftsmanship, efficient work, and outstanding communication. Highly recommended!

Michael Kao

2 months ago

I want to praise the construction team of Clean Roofing, - Rodrigo – Project Manager - Magdaleno – Foreman - Sergi – English Speaker / Roofer - Rolando – Roofer - Eric – Roofer - Jordi – Roofer They check and explain in detail all the parts that need to be repaired and maintain very good construction quality to meet the requirements of customers. During the construction period, update the progress every day and provide photos for sharing. Thanks for their professional attitude, I recommend this team to everyone.

Jillian Bobbitt

3 months ago

Had a wonderful experience with Clean Roofing. The staff was knowledgeable, they helped guide us on options. They made sure everything was WUI compliant to help with our home owners insurance. The project leader had wonderful communication, the crew was helpful. They communicated well when they found some wood damage that would require repair. They cleaned up everyday, and were very efficient getting the install done. For such a large expense, it was so nice feeling confident all the folks involved were knowledgeable and competent. I got several bids, and very carefully compared each, and while it was not the absolute lowest, it was lower than many. The quote was transparent and from the research I did the pricing was super reasonable for the work. A+ Would work with again, but I probably won't have to for at least 30 years because the roof is fantastic.

Ron S

4 months ago

I had my roof replaced in 2023 and Clean Roofing did an excellent job from sales to installation. They were very easy to work with and responsive to any questions and requests. The owner recently contacted me and asked if there were any issues or concerns, which I thought was very thoughtful. I highly recommend them.

Mark J

4 months ago

I've used Clean Roofing on several projects. Service and quality has always been top quality. The crews are good, courteous, communicate at every step of the way. Project started and wrapped up when they said it would. They are also technically knowledgeable, this was important when we were doing a solar installation, as it was not a straight forward install, their solar group (Clean Solar), knew more than any other company we spoke to. I would not hesitate to use them again on future projects.

Kimberly French

5 months ago

We had an outstanding experience with Clean Roofing from start to finish. Roofing projects can be disruptive and messy by nature, but this team truly lives up to their name. A huge shoutout to the crew: Magdaleno, Erick, Luis, Rolando, Jordy, and Sergy, who were exceptional every step of the way. Their communication was clear, consistent, and proactive. We always knew what to expect each day, and any questions we had were answered quickly and thoughtfully. Scheduling was seamless, and they stayed true to their timeline, which we really appreciated. Even more impressive was their follow-through, every detail was handled with care, and nothing felt rushed or overlooked. What really set them apart was how clean and respectful they were of our home throughout the process. Roofing is inherently messy, but this crew went above and beyond to keep everything as tidy as possible each day. It made a huge difference for our family. If you're looking for a team that is professional, reliable, and truly takes pride in their work, Clean Roofing is the one. We couldn’t recommend them more highly.

Yelp Reviews

4.7

Based on 96 Reviews

Patrick L. 6 months ago

Clean roofing did an amazing job on our roof, and I cannot recommend them highly enough! They were quick to come out and give an estimate, available to answer questions regarding the scope of work, timelines, and negotiating price, and just as quick to start work once we were ready to go.

Jorge was our foreman, and he was great. He checked in with us in the morning, professional, and super hardworking, as was the rest of his crew, including Pablo, Jorge Jr, and Jesus. They worked hard, stayed busy, Jorge kept us updated. The whole crew was very nice (with 3 young daughters, that was an awesome little bonus). They kept the workspace contained, were mindful of our safety, and worked around our young family clutter and bustle.

Laura was our operations manager, and she kept us updated and up to speed! Rodrigo was our superintendent, and he was very easy to communicate with. He was responsive, timely, and made sure we understood the scope of the work.

That was important because our roof needed more work than the initial work order we laid out. There was a lot of rot in the wood beneath the roof. The original estimate was very reasonable, but the scope of work great 2-3x fold. With that increase in work that had to be done, the price still felt very fair. We were in good hands!

The whole experience was very relieving. We've had rain since they finished, no leaks at all! And they've checked in us to make sure everything was all good regarding no leaks. I'm so glad I found Clean Roofing and worked with them!

michael 7 months ago

Clean Roofing did a great job helping with a leak on our flat membrane roof. I called them about the issue, and they responded quickly, found the leak, and repaired it efficiently. While they were there, they also recommended some preventive cleaning and minor repairs to help avoid future problems, which I really appreciated. Their pricing felt reasonable, and the quality of their work was excellent. Great company overall -- I would happily recommend Clean Roofing and use them again.

Kristi C. 8 months ago

I cannot recommend Clean Roofing enough! Dealing with a roof leak is incredibly stressful, but this team made the entire process so much easier.

Desiree was absolutely amazing--she was always quick to respond and kept communication seamless. Micah was also a huge help, patiently answering all of our questions with a friendly and professional attitude.

When it came to the actual work, Daniel and Eduardo were fantastic. They were professional, punctual, and their quality of work was excellent. It is rare to find a team that combines such great customer service with high-quality craftsmanship. If you're looking for a reliable roofing company that truly cares about their customers, look no further

Jill B. 8 months ago

We had a good experience with the roofers who did the work on our house - Rodrigo (project manager), Jorge, Jr, Pablo, and Jesus. They were timely and polite. They worked very hard, cleaned up, and kept me in the loop.

K D. 1 year ago

Clean Roofing came out and fixed some out of warranty holes in my roof caused by some squirrels or crows. There was some initial miscommunication but it was resolved entirely satisfactorily. Even though it was out of warranty. Thank you !!

Robert C. 1 year ago

Miguel, Jose and team took the time and care with our roof to make sure it was the best looking one on the block! We're so happy with their hard work, and really appreciate the way all parts of the process were handled professionally.

Toni M. 1 year ago

Everything went very smoothly! All communication was great! The guys worked hard and the roof was done quickly. They cleaned up as if they were never there. The price was competitive, and they finished on time as promised. The roof looks great and we have already been receiving compliments. We also added insulation and they did a fabuous job- very thorough and complete.

Jack M. 1 year ago

We had these guys install a Tesla solar roof for us. Very responsive, professional and helpful. I'd definitely recommend.

Why Choose Clean Roofing?

Trusted by homeowners across the Bay Area, we deliver expert installation, quality materials, and reliable service you can count on.

Frequently Asked Questions

What types of insulation do you install?

We install blown‑in cellulose or fiberglass loose‑fill insulation, radiant‑barrier roof decking and attic foil, and spray‑foam insulation. Each type is suited to different applications and budgets; our experts will recommend the best option after inspecting your home.

How long does installation take?

Most blown‑in or radiant‑barrier projects are completed in a single day. Spray‑foam jobs may require additional time for preparation and curing. We’ll provide a detailed timeline with your proposal.

How much does attic insulation cost?

Costs vary based on attic size, desired R‑value, and material type. Blown‑in insulation is generally more affordable than spray foam. Our free estimate includes a breakdown of costs and potential energy‑bill savings.

Will insulation help with noise?

Yes. Dense blown‑in insulation and spray foam create an airtight seal that reduces the transmission of sound waves, making your home quieter.