Very happy and satisfied with service , Joseph was very detailed in explaining the step by step…read moreprocess and what's needed . He upgraded my attic with new insulation and added an attic fan . Seen the difference right away . Also he drilled and pump insulation in all my exterior walls . The home is comfortable and now using my heat/ac way less . Joseph said pge bill will start dropping. He's very kind / positive. I admire he's a single parent who is widowed . He takes pride in his work made me feel comfortable instead of giving me sales rep vibes . He diagnose what's needed to receive the best results . Definitely recommend you contact this company

Joseph and his crew were professional but more importantly honest and saved me a lot of money…read morecompared to other bids that tried to upsell me. My house had literally zero insulation in the walls and I was hesitant to add any due to mixed reviews, but I trusted Joseph and he delivered. Now I don't hear as much noise and the rooms feel a lot warmer. Then he did the attic by first cleaning it, then sealing it and filling it up to spec with quality insulation. My house used to have cold spots and heater would kick on every 20 minutes. Now there are no cold spots and the house stays warmer a lot longer and again much quieter from external noise. I would highly recommend his services.

David from Atticity is straightforward, professional, and provides exceptional value compared to…read moreother insulation companies I received quotes from. He was responsive, punctual, and took accountability throughout the process. His crew was also friendly, hardworking, and respectful of my home. I'm very happy with the service and would definitely recommend Atticity to anyone looking for insulation work.

David was quick and straightforward. No pressure and explained each step and performed a thorough…read morecheck

I started to hear little pitter patter footsteps and gnawing sounds at 5 am, and on day 2 of this,…read moreI messaged Attic Crew. They sent someone the next morning for an assessment and got us scheduled right away! In the interim, they gave us recommendations to deter the rats, which worked. Carlos and his crew arrived on time and finished quickly. The price was reasonable (honestly, on the cheaper side yet the quality and professionalism was great!). There was an issue with a short circuit because a rat chewed through the insulation that we didn't notice until the weekend, but Carlos responded immediately and came over to fix the issue. We are so grateful to Carlos and the Attic Crew for helping us with rats in the home, helping us feel more confident about keeping them out for the foreseeable years, and for all of their professionalism, knowledge, and expertise! Would definitely recommend!

We worked with Jay, Andres(?), and Angelica. They really went above and beyond to help educate us…read moreabout the process of installing a moisture barrier and all the factors that go into successful rodent abatement. The communication was excellent, even on a holiday weekend I got called back within an hour of reaching out with questions, which I certainly did not expect! They arrived promptly for appointments and were thoughtful about avoiding tracking dirt into our home. They worked with us to customize their work to our coastal climate and were very transparent about exactly what materials they would be using (all top of the line, industral-grade!). I have pets and toddlers and they took my concerns about chemical disinfects seriously and offered several options to make sure I was comfortable with what was used in our home. They really seem to take pride in their work and enjoyed sharing before and after pictures to demonstrate all the improvements they made to our crawl space. I could not be happier with my choice to hire them, and plan to work with them again when I'm ready to replace my attic insulation.

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

Exactly what their company name for, "911Attic". Needs help, call them. Max was very responsive…read morewith our requests. We were very satisfied with their jobs and time management. They were fast, on time, respect our privacy, and got our attic cleaned, patch a hole and organized. And they offered a great value. Will definitely recommend them.

David was professional, transparent and gave very fair pricing. His men were very professional as…read morewell and did an exceptional job installing batt insulation into my attic. In fact, I have two attics, and when an issue came up (on my end) regarding the installation of the second attic, David was very flexible with me. I highly recommend Atticity.

We contacted Atticity to insulate our garage. We received a response within the hour, and had…read moresomeone on-site to provide an estimate the same day. They were quick, efficient, and professional, and very communicative. On the second workday, we received a text from the owner saying that his team hit traffic and would be about ten minutes late. I might not have even noticed if they'd just shown up a few minutes after they said they'd be there! I'm very appreciative of the attention and effort we received while the job was being done. They even finished about half a day early. I've already recommended Atticity to several of my neighbors. I'll be calling them again if I ever need more insulation work.

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.

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.

The inspection process with Tom went really well. Tom was punctual and efficient. Once he arrived,…read moreI showed him the attic opening and he performed a thorough inspection. He was patient with my questions and he was knowledgeable with his answers. He didn't give the vibe of a pushy salesperson like how other inspectors have been. I had a great experience with Tom.

I got great immediate service when Najim came out to inspect my attic. My newly bought house was…read morebuilt in the 60s and had zero insulation remaining which was a big issue with a newborn mid summer heat. He helped coordinate an earlier spot in the work schedule. Rodolfo came out next business day and was able to get it done immediately. Professional interactions, photos of work performed and overall great experience. Work was completed on our second floor attic in about six hours total.

Good general communication and came and provided a quick and easy estimate and was able to schedule…read morethe work to be done quickly. They were professional and cleaned up well after the work. I also appreciated that they did attempt to limit the extent of the remediation as much as possible, working to preserve as much of the cabinets and structure. As for the cost, I felt it was quite fair. As a counter-example, I got an email quote from another provider that was almost 3X the cost, but didn't even know what the work was. So recommend you definitely get multiple estimates including onsite to verify the extent of the work required.

Great communication, great to work with. We had a wall with water damage and they were very…read morethorough. They set up an entire clean room which was isolated as the space dried out. They went out of their way to remove as much of the problem as possible, and asked very clear questions about what we wanted to do every step of the way. Great experience.