Many thanks to the Universal Insulation team for doing such a great job on my attic from start to finish. 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. read more

Highly recommend these folks! Arrived when they said they would! Easy to talk to, answered all my questions, "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. read more

The crew did a great job and finished on time, very professional. Even though we had a small issue in one of our bedrooms, they fixed it and we are extremely happy with the work done. read more

I had such a great experience with Universal Insulation this week. Not only were they the ONLY ones to respond to my request for a quote, but Marko got back to me the same day and had his guys out here 3 days later. Erick and Miguel showed up on time and were super nice. They did the work and cleaned up perfectly afterward. Excellent service all around. Highly recommend! read more

Great company that does excellent work and goes above and beyond. Friendly customer service and workers. Highly recommend! read more

I would highly recommend Marko and his team. Overall the insulation work was very smooth and professional. Very good communication and great execution. read more

I used Universal Insulation to re-do attic add wall insulation for our old house (built 1959). They showed up on time for the initial quote and explained the process/options well. On the scheduled project date the team showed up on time and communicated well. They completed the project on time, patched up any holes and cleaned up before they left. The overall cost was as quoted, and we got a discount for paying cash. I'm impressed by the overall professionalism. I wish all contractors were like this. read more

I had an excellent experience with Universal Insulation, and I can't recommend them enough. From start to finish, the team was professional, knowledgeable, and reliable. The inspection was done by Nicholas, who arrived exactly on time and carried out a very thorough analysis. He explained everything clearly and gave me helpful feedback, which made the whole process stress-free. At first, we weren't sure which insulation material to choose. After doing a lot of online research, we decided on cellulose. Throughout this decision-making process, the business owner, Marko, was incredibly patient. He took the time to address every single concern we had, always explaining things from a homeowner's perspective. His communication reassured us that we were making the right choice, and he stood by his word that the installation would be smooth and high-quality. The installation itself went perfectly. The team worked efficiently and left us with excellent results. From what I saw, they are clearly very experienced and take pride in their work--something that gave me full confidence in the quality. Their pricing was also very competitive--much lower than other companies we spoke with, especially those pushing fiberglass insulation. While price wasn't our main concern (we cared most about quality and longevity), it was a pleasant surprise that Universal Insulation offered both. Overall, I am very happy with the work they did. This is the kind of project you only do once in decades, and I feel we made the right choice with Universal Insulation. Great team, great materials, great results. Strongly recommend! read more

We used their services about 10 years ago (2015) to insulate our attic. Now, as I am working with a roofing company, the project manager told me that the insulation needs to be replaced because it is barely 2 inches high. He also offered to do it for about $5.6K. Just to seek another opinion, I called Universal. They looked into the attic and said that there is no need to add any additional insulation since it is almost 10 inches thick in all places except where people moved around to inspect the attic. They shared the photos of the current state of insulation in my attic too. I liked the honest estimate of "no need to update the attic insulation." The person also assured me that it will last for another 20 years or more. Universal Insulation is ONE OF THE FEW HONEST COMPANIES in today's market when every company is trying to gouge customers. read more

I don't normally write reviews unless the service was absolutely exceptional, Universal Insulation is one of those examples. Nick, the estimator, came out to my house because my attic was getting unbearably hot. He spent a full hour carefully inspecting both the attic and the outdoor soffits, and managed to diagnose a problem that had completely eluded more than a dozen contractors I'd had out over the years (HVAC, roofing, attic specialists--you name it). After crawling deep into attic nooks & crannies, Nick identified that my soffit intakes were blocked by wood at the eaves, which explained the ventilation issue. No one else had taken the time or had the expertise to catch this. Other well-meaning contractors had suggested solutions like attic fans, but those wouldn't have addressed the real problem that Nick finally diagnosed. On top of that, the owner, Marko, personally spent another 30 minutes with me on the phone walking through potential roofing solutions. Even though Universal Insulation wasn't the company to provide those fixes, he still offered his time, knowledge, and advice because it was the right thing to do. That level of honesty, generosity, and professionalism is rare. If you're looking for a company that truly cares about solving your problem--not just selling you a product or service--Universal Insulation is it. Nick and Marko set the standard for integrity and expertise. read more

I got 4 different quotes for blown in insulation on a 60 year old house. Universal insulation was the most professional- it's obvious that Marko is a professional and studied building and environmental sciences or whatever he studied to understand the science behind thermal loss, condensation and moisture barriers. He's not just someone who shoves insulation and collects the check. In addition they processed the paperwork for my refund ... But to top it off - his quote was the cheapest. This shop is an EASY choice for insulation jobs. 5 Stars !!! read more

They are very professional. I use this company for my wall insulation. They did a great job and explained every step very well.

Any time you do home improvements, its always recommended you get multiple bids for the job. In this case, we got three bids to compare and 100% satisfied that we worked with Universal Insulation. For years, our bedroom walls would feel moist during the winter months when its cold out and the heater is blasting in the house. This is the perfect recipe for mold to develop on the walls, especially behind furniture. Every spring, we've been pulling our furniture away from the walls in the bedroom to scrub/bleach the surface mold build up due to the lack of insulation in our walls, plus maintaining a temp in the house during the winter time put our heater into overdrive, which also meant paying a higher PG&E bill. We met with Gonzalo who was prompt/on time, kept his mask on, was clear with his communication, answered all of our questions, educated us on things other contractors failed to do, and pulled multiple outlets off of the walls to scope for insulation while showing us his findings in real time. They are a participating contractor in the BayREN Home+ program (google this program). Universal Insulation's bid came back thousands of dollars lower than other competitors since they essentially get to keep the rebate if your house/work qualifies. The day of the actual work was being done, the workers (Marko, AJ and another guy) introduced themselves and told us what they'd be doing through every step of the install. We had blown cellulose in the attic and exterior/interior walls. Yes, there were over 50+ holes drilled into the exterior walls but they did a great job patching each hole after the insulation was blown in. They attempted to clean up what they could, but that stuff is messy. In the end, we were pleased with the communication, the rebate program, the costs, and service. I won't know how much the insulation has effected our pg&e bill until a full year/seasons have past, but we could already feel the difference in the house. I highly recommend working with Universal Insulation! read more

Universal Insulation - Insulation Installation Near Me - Campbell, California

See all

I am just off the second phone call talking with Marco. I have issue insulation material coming down from attic to furnace closet. Marco answered my first call. After discussing what might cause the issue since it is open space between the attic and furnace closet, Marco still offered to come anyway to check it,even this is not their main business. Although I did not need the service this time I want to give this business a 5*. Marco was friendly, very knowledgeable and understanding. If I do have a future need in this area I will definitely consider Universal Insulation first. Bravo Marco and company. read more

I highly recommend Universal Insulation. Marko has a deep understanding of insulation and really all aspects of energy. His inspection was thorough; he walked our attic for maybe 10 minutes (taking many photos) and checked our walls for insulation. He explained why adding loose fill over our existing (very old) loose fill was the most cost-effective approach. We saved considerable money by not having the old insulation removed and the attic disinfected. The credit from Bayren was already deducted from the quote so the homeowner doesn't need to wait for the rebate check. The installation crew was on time and took care not to leave any mess. The process took just several hours and was surprisingly quiet. Also, the office is very helpful and efficient. If you're considering an insulation project, these guys should be on your short list. One of the best contractors I've ever chosen. read more

Universal Insulation came to do a two part job. Blown-in insulation was done in my attic after I had roof damage. Could not believe how fast the job was completed. I'm excited to see how this winter will be like with the new blown-in insulation. Marko assured me I should feel a difference. They came shortly after to install drywall in my ceiling. Marko was able to refer a trusted painter to tape, texture and paint my ceiling. (The painter, as well, did a great job) Marko was extremely professional, very understanding, quick, efficient and most of all the quality of his work is superb. read more

The project received 5 quotes and I picked Universal Insulation even they are not the lowest bid. Mario stop by did the estimate of the project. He did the measurement thoroughly, and also provided me with Pros and Cons on different way to handle my 2 stories house. On attic, he did not over sell me the insulation but suggested me to keep the current insulation and add some more new material on top, this way it will have better thermal performance without unnecessary works to save me lots of money. Also he suggested me to add a cover on attic ladder to keep the house sealed. The crew show up on time for both days of the 2 days project. They were very professional on their work. The result is awesome! I was so lucky to pick Universal Insulation. Based on the result of their work, my house feel cooler on the hot days: outside 85F and inside 72F. In the afternoon, my west side room used to be the same as outside or higher if I closed the door in order to have my con-call before the insulation, now it is only 74when outside is 88F. I want to recommend them to everyone want to do the insulation work, they are the right choice and know what they are doing for sure! More importantly, they will not over sell their service but stand on your shoe to quote the project. My project result worth the every cent I spends. read more

See all

I got three quotes for re-insulating the attic of our 2900sq.ft home. I was clear that we wanted to upgrade our R30 batts to meet Energy Star recommendations, and also qualify for BayRen rebates. Only Universal Insulation listened to our request, spent a long time in the attic examining the situation, and quoting me a solution that was less than HALF the cost of the other quotes and achieved the desired level of insulation. The other two vendors quoted us R39 batts, admitting that it wouldn't achieve what we wanted, and then added radiant heat barriers, attic cleaning, and attic sealing that I was clear I didn't want or need. The final test is "does it work"? and early indications are that it's already made it possible to pre-cool our house to 70deg (previously we couldn't get it below 75deg when it was hot outside). I am anticipating the winter will be equally good! Finally, Universal Insulation took care of the rebate application, and I was not surprised when Elem3nts (the designated inspector) said that Universal Insulation always does an excellent professional job. read more

Extremely satisfied with service and more importantly, professional behavior from its owner -- Marco (Owner). Marco and his team are extremely knowledgable, NOT out for your money and offers the honest assessment of what is to be done. We could feel evident difference in temperate post insulation. Lastly, his quote was far more competitive than any other quotes I received. Thanks once again, Marco. read more

We hired this team to complete our attic and wall insulation. Things that I loved about them - 1. They give you the $1.5K Bay-Ren rebate upfront - so I don't have to deal with Bay-ren. 2. Use blown in cellulose instead of fiber glass. This is a superior product in terms of self air sealing. 3. Drill only 1 inch holes in the wall and patch them ready for paint. The other contractors didn't do any of the above, and they quoted higher. read more

Great communication and on-time; very through assessment of the reported issues and customer request of services. very knowledgable and honest direct facts. I hope future customers will read my review and give Universal Insulation an opportunity to bid and provide a quote and got the job done well for you. My experience with the quote appointment with assessor Nicolas gave a very good impression about this business. The quote was competitive among others. We did not offer the job in the end as the decision was not mine alone to make. Regardless, I hope you give Universal Insulation a call to do the work for your insulation projects large or small... read more

We had insulation blown into our exterior walls and added to the attic and Universal Insulation was great to work with from start to finish. Gonzalo came out to give us a quote and was so gracious and knowledgeable. While discussing the details with him, I instantly felt I could trust him with his quote, with my home, etc., and that rarely happens. Rick and Gabriel executed the job and were very friendly, efficient and respectful of my home. If you're thinking about having insulation blown into your exterior walls, stop thinking about it and just do it. It will make such an immediate difference and you won't have to kick yourself for not having done it sooner. read more

Universal Insulation did a fantastic job! They were able to add insulation to a vaulted ceiling with no attic above. For the very first time, my room was cool during a hot summer day. They are honest, reliable, professional, and fully stand behind their work. read more

Special thank you notes to Gonzalo. He came and did a inspection to my house, very knowledgeable, very nice and great information. Highly recommend him and universal insulations read more

Marko showed up for an inspection and provided some useful info. Afterwards, we were ghosted after several attempts to get a quote. No reason was provided for the total lack of response. Avoid like the plague. read more

Universal Insulation was great to work with. Marko gave us the quote for the insulation installation. He was very honest about what we need for our attic and did not sell anything more than needed. He also explained the process for the Bayren rebate. Ann from their office was very responsive in providing the quote and answering any questions. Also, all the paperwork was digital including the rebate form (using Docusign). The installation crew arrived on time and completed the work in the stipulated time window. I have already recommended this company to my friends and neighbors. read more

The people at Universal Insulation are great. They were more than willing to work with me in days and times, especially knowing I had extenuating circumstances. Their bid was fair value and when they found some of the house already had insulation, they credited me! The guys doing the work we're wonderful! Thoughtful and thorough. I have recommended them on my Nextdoor and to my neighbors! read more

Superb experience, right from initial quote request and inspection to the actual work. We wanted to get the walls insulated in our 60 year old hime. Marko came in for the estimate and checked which walls had insulation and which didnt. He also checked attic insulation. Quote was very good (especially with the BayRen rebate that they offer instantly). Installation was smooth with Eric doing a great job. Ann was a pleasure to talk to as well for scheduling. All in all, a 5 star experience. I am recommending Universal to all my friends. read more

Getting insulation blow into exterior walls of a ranch style home built in 1957. Install was quick, but loud! Be sure you're gonna go somewhere if you don't like drills hammering through stucco. After insulation, interior temps dropped by 10degrees on average, more on really hot days. So glad we did this. Marko came out to give a quote. He was good to talk with, helped me understand the ins and outs of why it was, and where there might be wiggle room. The install team was very professional. They showed up right on time, set up, and left without a huge mess. read more

Worth every penny. I've never lived in a house without insulation. The concept didn't even occur to me that there wouldn't be insulation in the exterior walls. Right? How could that be possible? Our house was built in 1965. It sounds like there was a building code change after 1965 that required insulation in the exterior walls. So, we did the blow in wall insulation. These guys are legit. Gonzalo showed up a few minutes early for my initial estimate and review and I wanted him to look at the walls and attic space and crawl space. Very professional. Attic had insulation from the previous owner. He said the the type and height were all good and the crawl space could be done, but not a good value for the cost to do the work. So we just did the exterior walls. The estimate comes through with a nice online platform that you can review and approve and then get a call to schedule you installation date. Very slick and easy to use. AJ and Marko did the install. Awesome guys and walked me through everything and the paperwork for the rebate. Good quality work. You can do the wall insulation from the e outside or inside of the house. We did the outside. It's a little messy, so outside is best. When they're done, it'll look like your house has been involved in a drive by shooting (they drill holes between the stud cavities to pump in the insulation and patch after). Also if you have an older house like us, you may have some nail pops in the drywall after. So a little patch and paint may be required after they complete. Painting is done by the owner or you can hire a painter. It'll take only an hour or so to go through and touch up all the spots after the patch cures. Thank you Gonzalo, AJ, Marko and support staff for the great quality work and being awesome people. Me and my family appreciate it very much. read more

Universal Insulation - Insulation Installation Near Me - Campbell, California

Universal insulation was a pleasure to work with and exceed our expectations. They are very knowledgeable about their craft and made it extremely easy with all the rebates. I would definitely recommend them to anyone that wants to do insulation in their home. read more

I have a home built in the 1950s. Most homes of that vintage have no insulation in their walls. My poor daughter's room is where we particularly notice this in the winter with the cold and the summer with the heat. We had previously had another company come out and do blown in cellulose in the attic which helped some. Universal Insulation came out and filled the walls of my daughter's room with cellulose plus the rest of the house for which we hadn't already opened up the walls (a little less than half of my 2000 sq ft house). The price was $1.50 per square foot with a minimum charge of $650 and the total came to about $650. The team came out on a rainy morning and pumped the walls full of cellulose through the stucco on the outside of the house. It's a pretty neat process. The workers did not need to come into the house at all. No mess on the inside and very very minimal mess (little bit of cellulose on the ground) on the outside. It took the team about half a day to fill the walls and patch the stucco. I'll have to paint the little stucco patches but no big deal once the rain goes away (I'm thinking this will be a 1-2 hour job for lazy me). The results: A+ for quality and value. It has been about a month since the installation. My daughter's room is consistently 3-5 degrees warmer throughout the night and day as measured through her baby monitor and retains heat longer after the furnace turns off. The house overall is retaining heat much more evenly throughout the different rooms and we've been able to turn our thermostat down 1-2 degrees to 66 or 67 for the night (it would be even lower but we have a newborn who doesn't sleep with a blanket). Based on this and the fact that the house just feels better we are giving Universal A+ for quality, value, and making the process incredibly easy and pain free. read more

These guys are great! They are knowledgable, polite, showed up on time and cleaned up after the job. I am very very happy with the quality of work! read more

Universal Insulation - Insulating the back wall. - Insulation Installation Near Me - Campbell, California

Honest, professional, on time and very reasonable. Very helpful and price is very reasonable even for a small job. Had 1/4 of the main home outer walls and couple of in law unit walls insulated. read more

We acquired a new house in Fremont and I reached out to 3 insulation companies to check the insulation we have in the attic, crawlspace and outside facing drywalls to determine if we need to do anything to make our home more energy efficient. The first two companies gave me a laundry list of items that we need to do, with projected costs ranging from 7K to 10K USD. But it was only Gonzalo from Universal Insulations, who carefully studied all detail and told me that I have to do nothing. He checked all existing insulation at the home, and found them to be in good shape that needs no change to avoid unnecessary expenses. And he explained to me why we should be good with no crawlspace insulation for our home, and once again explained why spending on new insulation in the crawlspace is not going to prove to be a worthy investment. This level of honesty and integrity is unmatched in today's world. I know that if I can trust someone, I can do business with them and refer them to my friends and families. Universal Insulation has become my only go to company from here on for any insulation works! read more

I highly recommend Universal for their excellent work at an unbeatable price (more on that below). I hired them to increase our attic insulation. Marko, the owner, discussed the options and recommended blow-in insulation. He also tapped on all the interior walls of the house and said we didn't need to insulate them, because they had already been done to code. He supervised the worker as the job was done. The resulting insulation looks very neat and uniformly deep, like a single, smooth blanket, with nowhere for heat to leak across the barrier. They even insulated the access hatch to the attic. Marko took a photo of the attic before the job, showing where we have walkways along the joists. He hung the photo on a rafter by the entry hatch, in case anyone needs to use the walkways in the future -- a brilliant idea. They protected our home with drop cloths under the blow-in tube, and vacuumed thoroughly when the job was done. Universal did the paperwork for the Bay area Regional Energy Network's (BayREN) efficiency upgrade rebate of $1000. They subtracted this expected rebate from the up-front cost of the job, which cut our invoice in half. The cost was much lower than bids we received from another excellent company (also rated highly by Yelp). Universal did a beautiful job at a great price. Marko and his worker were very informative and conscientious in making sure we got our money's worth for a well insulated home. Thank you! read more

Everyone at Universal Insulation (for estimates, manager, and work crew) was outstanding. People showed up on time and when there was a minor delay, I was immediately given a heads-up. We added wall insulation from outside and the work was completed in a few hours as promised, and the work crew did a great job of cleaning up the job site afterwards. Also estimates, schedule reminder, invoice, etc. was done via email (through a service called Jobber) and that made everything very simple. I highly recommend Universal! read more

No show for estimate. The plan was to meet up the day of meeting at 11 but they change the time to 1230 and I waited till 1 o'clock and did not show up. I even called and it went straight to voicemail. read more

It was a good experience from start to finish. Gonzalo came by promptly to give us an estimate along with explanation and answered all the questions I had. Price was very good and competitive. They never sold anything I didn't need, which I appreciated very much. The day of insulating attics went smooth, fast and efficient. I already see the result of temperature difference in the house. I recommend this company if you need any insulating services. read more

We completed a residential insulation removal and install project with Gonzalo and Marko.  They were efficient in their work and provided some great insight (not exactly a straightforward project). We coordinated with a roofing contractor on access and they all worked well together. Great people to work with and I would work with them again on any future projects. read more