Get matched with top roofing installation & roof repairers in Portola Valley, CA

"Good folks. Although my roof didn't require repair, they still came and looked it over. Excellent, friendly service"

"Los Gatos Roofing is my go to roofer. A quality roof over you head is important"

"The project went smoothly and the work was of high quality. I recommend Westshore Roofing."

"Tom Lee Roofing did our roof in the Sunset District of San Francisco about four years ago (right as we were coming out of COVID). His team is professional and works efficiently. He walked us through the project prior to starting, frequently inspected the work, and offers to inspect future projects that may impact the warranty (e.g., if you need to put in a kitchen vent). We are so pleased with his work."

"Although the roof appeared to be in good condition, I decided to have it replaced as it was over 30 years old. In late September of 2018, I met with Shadowfax roofing estimator John. John was very knowledgeable and understood the issues with the high pitch of the roof. He provided two quotes. The first quote was for the basic Owens Corning Tru Definition shingles ($9,980) and the second was for Duration Premium shingles ($10,580). I opted for the higher quality shingles. Since the gutters were going to be replaced, I requested the wood that extended beyond the roofline be cut in order for the gutters to extend to the end. John explained it would not be a problem, however, any dry rot would need to be removed and replaced with new wood. Additionally, I had requested a vent be added for the bathroom as it was venting into attic instead of through the roof. John also indicated everything could be completed in about 3-4 days. However, it would be about three months before the job wold get done. Since there was no hurry, I agreed. In early November, I received a call from their scheduler, Pam stating the job would start on November 13th. I explained I would be leaving town on November 16th. She stated the job would be pretty much finished by then. Unfortunately, there were some delays. On the first day, the workers did not show up until late in the afternoon to remove the roof. On the second day, work stopped to due to the dry rot issue. Although, I had explained to the foreman on the first day of what I had wanted done specifically, replace any rot and cut all the overhangs, work stopped until I gave the okay to do the repairs. Fortunately, the dry rot was minimal, however, it caused a delay as there was only one person doing the job and he had left for the day. The foreman explained the previous job had some issues, which required their attention. On Friday, the crew for the gutters arrived early in the morning, however, they couldn't do the gutters as the overhangs still needed to be cut. So, crew returned later in the afternoon. Since I was unable to be present when the job was completed, my family supervised. I was informed the work was not completed until Sunday. When I returned home, I noticed the vent I had requested be added was not done. I contacted Pam and she stated it would get done. A few days later it rained. I have had no problems with the roof. Although there was a lack of communication in the beginning and delays, the job was done well. I would hire them again. However, I have learned my lesson that roof replacements should be done in spring or summer."

"Every time I called with a question they got back to me right away. When they were putting on the roof, they kept communicating with me on the amount of termite damage and wood that they have to repair. They kept me inform on how much they expected it would cost me if they did that. They put on our roof in the middle of a storm and the roof was leaking in the middle of the storm and they came out in less than 15 minutes to put an additional layer of tar over our roof and they committed to finish out roof the next day. Even when we had that encounter the owner let us know what was happening and what they were doing to get the roof completed timely and made sure we were satisfied."

"My experience was excellent. They did a clean job. I have no complaints on the quality of the roof. They did exactly what they said they would do and when they would do it. They were nice."

"It was a great experience working with the Cosmo crew who were very professional and courteous. In two days, they replaced our old roof on a 3 bedroom single family home and installed a new skylight. During the process, they found rotted wood and replaced them properly. The gutters were painted to match the house. I appreciate their high quality workmanship and flexibility by working with our contractor's schedule and the unpredictable weather. Their commitment to customer satisfaction is obvious as they accommodated many of my requests during the process. I would highly recommend them."

"Signature Roofing recently re-roofed a quite large roof on a house in San Jose. They were excellent. They were reliable, communicated well, easy to work with, and did a great job. I am very pleased. I could not have asked for better. I would definitely use them again."

"The company started at 9 am with a crew of 6 and a hoist truck that took old materials and delivered new shingles and felt. Crew left at about 3 pm with the roof covered in felt and the new shingle bundles stacked on the peaks. The following day, no one showed up and a wind and rain storm tore some of the felt loose and let rainwater into the attic. This soaked an area of the attic insulation, dripped through a heating outlet in the living room ceiling, and dripped onto the piano and the wall-to-wall carpet. After 2 hours of calls to the company, a man in a small pickup arrived, saw the problem and borrowed our ladder to go onto the roof and use the shingle bundles to hold down the felt. This distribution of the bundles apparently should have been done in the first place. The next day, the crew arrived and finished shingling the roof but left the whole shingles, shingle scraps, paper wrappings, flashing scraps, and coils of nails in 3 large piles on the roof. More calls to the company leaving messages about cleaning up but without any prompt response. Two days later, 2 workers showed up about noontime and picked up the debris and the wet carpeting which I had torn out before it got moldy. At last the roof was done and the question of water damage was now the issue. The company paid for the material cost of the replacement insulation which I installed after scraping out the old 50's insulation and applying a mildew-cide paint on the attic surface of the ceiling.and for an area rug, (my choice) rather than wall-to-wall carpeting."