This is the very first time I'm giving less than 5 stars for a yelp review. I usually like to give…read morecompanies the benefit of the doubt and give them opportunities to make it right, but my experience with Attic Masters and Adam have been nothing but endless frustration. First, they didn't show up to our scheduled appointment on Nov 29, at 8AM even after I received 2 confirmation emails, and text reminders about the appointment (attached below are photos of the confirmations). I specifically chose this company over Attic Bros because I was told that they work on the weekends and complete jobs on weekends. In hindsight, I wish I would have just gone with Attic Bros from the start. Two guys came at 2:30pm instead on Saturday after I had called them at 10:30am about how no one showed up. The 2 guys only put up 2 films of radiant barrier and left at 5pm. On Sunday morning, the remaining workers showed up and "finished" at 2:30pm, however they didn't rodent proof my crawl space until I had pointed out the holes to them. They did it after I had pointed out the holes. Additionally, they never rodent proofed my the attic side vents. They rodent proofed the roof, sure, but I would have thought the side vents would be included (they didn't have a ladder to reach it so they didn't do it). I had to hire a third party to fix the holes/gaps on the side vents instead because Adam and his company didn't want to come back to fix it. I was told they'd call me back when they can schedule me in, but after a week I gave up and just hired another company. Also, they damaged one of my kitchen lights when they were doing work in the attic. Adam also said he would send someone to fix it and that it's "easy" but nothing ever came of it. The 3 stars I gave them is because the insulation looks decent and that they still came on Sunday to follow through on the project, but if they could lie to me about "fixing the side vents from the inside" who knows what else they may have lied about. I am concerned about this company's integrity. Also- Adam is rude and defensive on the phone, and doesn't really let his customers speak.

We used Attic Masters in 2015 for an insulation job. They installed blow-in insulation in the…read moreattic and bat insulation in the crawl spaces. We have not had any issues since the ones that we dealt with during the initial installation. Fast forward to this week (Mar. 2026). We are in the process of getting quotes for installing a vapor barrier. During inspections, two separate insulation experts notified me that the batt insulation was installed incorrectly. The paper should be facing the floor rather than facing outward. See photo.

David and his crew were amazing. I liked that David was straight with his quote, no salesman…read moretactic. He knew exactly what to do and how much to charge. His crew were very professional and did the job very efficiently. Highly recommend them.

This was our second time using David's service. This time, his team cleaned and sanitized our crawl…read morespace. As always, they did an excellent job. A special thanks to Alonso and Luis, who were incredibly thorough and paid great attention to every detail. We really appreciated their professionalism and hard work. David's pricing is always fair and reasonable, and we would definitely use his team again and highly recommend them to anyone looking for quality work.

Many thanks to the Universal Insulation team for doing such a great job on my attic from start to…read morefinish. We purchased our home many years ago and didn't realize how much of a mess the attic truly was until Universal Insulation completed an assessment in preparation for a possible heat pump installation next year. We're so grateful to have found a company we could trust to do things the right way. During my correspondence with Marko, Marko arranged for an assessment to be conducted by Nicholas. From the initial assessment, Nicholas was incredibly patient in addressing all our concerns and questions -- especially since we are very "hands on" homeowners. Once the contract was signed, Ann promptly scheduled us for the next available appointment and provided clear, detailed instructions on how to prepare before their arrival. The meticulous process began with removing the old insulation and debris, vacuuming the attic floor, and sanitizing the space. The next step was ensuring the attic was structurally sound and ready for new insulation. Because of the care and attention to detail that Marko, Miguel, and Nicholas put into every part of the job, we ended up with a dry, well insulated, properly ventilated, and easily accessible attic. If you're looking for an excellent insulation company, I highly recommend the team at Universal Insulation, Inc. -- they are truly competent professionals who take pride in doing things the right way.

Highly recommend these folks! Arrived when they said they would! Easy to talk to, answered all my…read morequestions, "got on" with the job. Finished the job in less time than originally quoted, excellent clean-up. Quite reasonably priced, especially for Santa Clara County, also included a credit for quoted work that didn't needed to be done.

Max was very prompt during the estimate phase. After approving the estimate, setting up a date to…read moredo the insulation work was very easy We got about 1.7k sqft insulated and an attic fan installed Overall, very pleased with their service and would recommend them for insulation and other attic work

Max & Co. did a great job! They started early AM removed my old blow in insulation. Sprayed rodent…read moresolution. Sealed the opening and installed bats insulation. Work was done in half a day for 2500sqft attic space. One of the guys then pushed back recess lights popped out from all the work upstairs. Max was great in explaining all the details and flagging any concerns even on electrical side. Hardworking crew!

They installed a carrier heat pump on my roof with a new platform covered by a painted screen. All…read morenew electrical components and electrical connections. A new heat exchanger system/ gas heater,new ductwork with adjustable insulated ducts, a new ecobee smart thermostat. Power during the day is provided by my existing solar panel system. The system runs quietly and has saved 48% electricity over my previous system. They performed the installation in one day, built a plastic tunnel inside my home to capture all of debris from demolition and installation. They serviced the system once a year. I recommend San Jose Heating and Cooling Company

So helpful - I thought I had one problem and Andre came right in and found the actual source of the…read moreissue right away. He was able to source the parts asap and get it fixed quickly. Knowledgeable, friendly, and efficient.

From the very start of my engagement with Attic Bros it has been fantastic! I found them in a…read moresearch on Yelp and no joke, my 8 year old calls me Bro, so figured I would fit right in with the Attic Bros! I think within maybe 20 minutes of submitting my Yelp quote I had a call back and an appointment. Michael came out and did a THOROUGH inspection of the attic took a ton of before pics. But not only that he then sat down with me and went through the entire process, which is quite frankly, amazing. He also answered all of my questions and offered some input on my ducts. He made himself available for any other questions too, which was so nice since my husband wasn't around - there's always another question. With this process, not only do you get your old attic crud sucked out, they look for and seal any entry point for critters. They add mesh from the inside plus they go around the whole perimeter from the outside of the house too just to make sure they caught all entry points. They seal all air gaps from things like recessed lights and fans. And then they sanitize. Something about knowing my 70 year old house got a deep clean is VERY satisfying for my OCD cleaning tendencies. The insulation went in - they use a batting that is 12" thick, my attic before probably had an inch, maybe 2 in spots of the old blow-in stuff which was just dust and dirt and disgusting. This batting is eco-friendly - no pink artificial coloring, just the insulation which also is no longer harmful. Night one and I already saw a difference. Usually when it gets cold at night by 2:00 am our home temp inside drops, we stayed a steady temperature throughout the night, I might be a bit crazy, but it feels like there's a sound dampening effect too - I don't have to have the TV on as high of a volume. Follow-up, they add traps and will come back to monitor in a couple weeks to make sure there is no activity. Another over the top customer service layer - we had Jordan as our project/site manager for the day - I was texted by the system with his picture, LOVE this feature, its really helpful. And he called when he was closer. He kept me updated throughout the day and was just really kind, very professional and the crew he brought, Jesse and I did not catch the other gentleman's name - they worked so incredibly hard, and efficiently. We really appreciated this crew, they were amazing. If you are hesitating for any reason to get your insulation in your attic done - DON'T - it is 100000000% worth every dollar, which by the way is an incredible value when you really think about what it does for your home. I am quite mad at myself for not doing it sooner, but certain things had to happen first, so here we are! I would choose Attic Bros in a heartbeat and whole heartedly recommend them!

Called Attic Bros after roof rats got into our attic. Our usual handyman was out with an injury and…read morethe company we'd used for years told us they no longer work on tile roofs -- so we were stuck. Attic Bros responded to a voicemail and email within a day and had someone out the next morning. Jordan Kelly did the inspection and was thorough and straight with us. He found the rats were coming in at the plumbing vent penetrations, and pointed out something no one had ever told us: all our previous rodent-proofing had been done on the tiles, not the plywood underneath -- so the actual entry layer had never been sealed. That explained years of recurring problems. He didn't oversell; he explained what mattered and why. A few things that stood out. When I asked whether the crawlspace was covered, he added crawlspace exclusion and trapping to the estimate at no additional cost. When I flagged that the warranty terms would have been voided by my routine annual HVAC service, he had the language corrected in writing. And when a scheduling mix-up pushed my date out two weeks, they found me the original slot back after one email. The crew of four arrived on time and finished in a day -- removed all the old contaminated insulation, vacuumed out the droppings, sealed every entry point with metal mesh, sanitized, and installed new R-38. Professional, tidy, and they took care in the house. First night since: completely quiet. Job just completed, so I'll update this if anything changes -- but the process, the honesty, and the workmanship were all excellent.

We had our crawlspace done a couple of years ago. The work and experience was top tier. We…read morerecommend to our neighbor who's just had the same work done and same positiive experience. We live on a street with a high water table, and the seasonal rains routinely brought seasonal smells of mildew and moisture when you entered the home. Significant and noticeable. As were the bacterias and significant colds we'd experience as well. it was just not healthy. With their help and detailed efforts we're two years into the new environment and havn't hand anything but clean clear dry air and no green sneezes. (Sorry, but, it's true). I also found them highly responsive and reasonably priced. I don't write reviews often so when I do, it's for a good reason. This is one of those instances.

We have been so lost with where to start with our new home and have some crawl…read morespace/foundation/rodent issues we are trying to take care of. I filled out their form and they contacted me the next day- they don't offer the services we need but they were so nice and gave us a recommendation to a business that could help us and a place to start which I really appreciated. So I can't speak to the work but their customer service was fantastic so if we ever need moisture barrier we know who to call! Thanks!!

I cannot recommend the team at GreenShield Insulation and the owner, Ahmad, highly enough…read more Unlike several other contractors who either quoted me over the phone or barely looked into the attic, Ahmad personally came to my home, thoroughly inspected the damage caused by rodents, and provided a very fair and honest estimate. This project was unusually complex and took nearly four months to complete. The process involved rodent exclusion, removal of decades of accumulated insulation, asbestos abatement, attic sanitization, installation of new ductwork, and finally new insulation. Throughout every stage, Ahmad remained involved, checking in regularly and making sure everything was progressing. A special thank you to Dave and Eddie, who removed the old insulation and installed the new material. What appeared to be a straightforward job of insulation removal, turned out to involve three layers of different insulation materials dating back to the 1950s. Despite the unexpected workload and physical demands, they never complained. They remained cheerful, professional, respectful, and hardworking throughout the entire process. As a senior citizen who carefully researches major home repairs, I greatly appreciated Ahmad's patience in answering my many questions. He was consistently kind, knowledgeable, honest, and professional. Unfortunately, not every contractor I met during this project demonstrated those qualities. The entire GreenShield team exceeded my expectations. Their workmanship, integrity, communication, and customer service were outstanding. I would not hesitate to hire them again and highly recommend them to anyone needing attic insulation, rodent damage restoration, or related services.

Entire process from start to finish was exceptional! Ahmad is knowledgeable, professional and a…read morereally nice guy. Value is undeniable. Highly recommend these guys for anything insulation.