Top 2 waterproofing contractors in Alviso, CA

"Jose Olguin and Jorge Martinez were an amazing crew for us today. They were on time, professional, courteous, thorough, and went the extra mile. Would happily have them service our house again any time!"

"We recently moved into a “new” old house and after inspecting the attic where I had hoped to use for storage I was appalled at the condition of the space. Dirty and completely settled blown in insulation, pieces of roofing material, and worst a large amount of rat and mouse feces. Before I could use the space I needed help. After doing some online research I called Attic Pros for an estimate. Najim showed up on time and reviewed the area. He explained what services they would perform and provided a fair estimate. We opted to include an attic fan installation and a new attic ladder. They were able to perform the initial removal,cleaning, sealing and rodent proofing the very next day. Armando and his crew showed up on time completely walled off the work area and took care of business. They were tidy and kept our house clean. The next day the ladder and attic fan were installed . Again, very professional and a job well done. We thank the Attic Pros team for great communication and doing a great job. Thank you!"

"Called Attic Pros to have them remove the old blown in insulation from my attic space and install R38 rolls of insulation. Rodolfo and his crew arrived around 9:30, put in plastic protection for the floors and sealed off the area so insulation would so insulation material was contained. They vacuumed all of the blown in stuff, sealed gaps and disinfected the attic space. They rolled in the R38, cleaned up the area and sent me pictures of the attic space throughout the process. They finished up by 4:30. The workers were quiet, efficient and very friendly and polite. Overall quite pleased w/ the work and results."

"I wanted the crawlspace cleaned up and insulation restored after treatment for rodents. Attic Pros gave me what I felt was a fair price and did all the work required in a single day. They were careful to protect our floors and all debris was cleaned up after they finished. They even took the time to strengthen the screening the pest control company had installed to prevent further intrusion."

"Attic Pros responded promptly to my inquiry and set up an appointment to look at the site, take measurements, etc., and gave me a reasonable quote same day. Work was done on time and of excellent quality. Would definitely hire again!"

"We had a small leak in our roof. Sam at Roofworx came by to examine the roof and provide a quote. He was on time and provided an excellent explanation of what he discovered and our options to get the roof repaired. Their quote was one of the most detailed and best priced bids for the project. We hired them to do the section tile reset option. The work was promptly scheduled and it took a bit over a day to complete. No problems were encountered. The roof has performed well during the past couple of storms. At the end of the job they were able to provide pics of the work. I would definitely recommend them."

"We worked with Roofworx to redo our roof. The roof was not a standard re-shingling. We wanted to add insulation on top of our existing exposed beam ceiling to preserve the beauty of the wood. The insulation was desired because our roof did not have any insulation and during sunny days in the summer it would be quite uncomfortable inside. They worked with us to get all the details right and in the end our roof is quite nice. It is very comfortable inside and looks great."

"Had a stubborn leak on the Spanish-clay tile roof at our cemetery site in San Francisco. ROOFWORX booked us the same day, swapped the cracked mission tiles, laid high-temp underlayment, and rebuilt the flashing—all without disturbing the historic look. First Pacific rainstorm: bone-dry ceilings, spotless grounds. If you need tile-roof leak repair, waterproofing, or full roof replacement in the Bay Area, these roofing contractors deliver. Five stars."

"We just completed a full roof replacement with Mike Smile and his crew, and I couldn’t be happier with the entire experience. Mike was patient as we got started, worked with my schedule, and gave us the best quote we found after comparing multiple contractors. At the very beginning, he took the time to walk us through the whole roofing process so we knew what to expect, which really gave us confidence. We had multiple layers of old roofing that needed to be stripped before installation, and his team handled the demolition in a single day and installed the new roof right after. They work fast, they’re professional, and they keep the property clean throughout. Any time something came up, Mike communicated immediately and worked with me to resolve it — no hesitation, no excuses. In the end, the results exceeded my expectations. I highly recommend Mike and his team for anyone looking for a reliable, knowledgeable, and hardworking roofing contractor."

"We had a fantastic experience with Roofworx! They provided excellent service from start to finish and installed our new roof in just one day. It looks amazing! We worked with Quentin who was wonderful. Great communication, easy scheduling, and he handled everything smoothly with our insurance company. The shingle options were great, and the final result completely transformed the look of our home. Highly recommend Roofworx for anyone needing a new roof. Professional, efficient, and high-quality work!"