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    Greenshield Insulation

    4.8 (89 reviews)
    Open 9:00 am - 2:00 pm

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    Response time

    10 minutes

    Response rate

    100%

    Services - Greenshield Insulation

    Insulation removal

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    Vivek J.

    Excellent communication and quality of work. Initially the quote was higher but owner negotiated it very competitive and for both attic and walls. The technicians were proficient with job as well as safety of house. I would definitely recommend them. They are Bayren rebate certified.

    Equipment for blowing insulation
    s n.

    Ahmad was referred to me by Elem3nts who did our energy audit. Between getting GREAT advice from both Alfredo (Elem3nts) and Ahmad re insulation, we are getting some amazing work done. Fixing our house before spending on BIG HVAC upgrades or Solar (those will still be needed, but smaller systems and saving energy over many years). Ahmad came in, assessed what we need, provided a competitive quote and also explained how city and utility rebates work. Long story short, after rebates, for less than $1000, I will get half my exterior walls insulated (the other half were done in a remodel a few years ago). And for less than $1000 I will get my attic insulation upgraded from R38-R49. And also Ahmad will air seal my crawl space.

    Ready to patch wall

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    Review Highlights - Greenshield Insulation

    Throughout every stage, Ahmad remained involved, checking in regularly and making sure everything was progressing.

    Mentioned in 50 reviews

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    Attic Bros

    Attic Bros

    4.8
    (507 reviews)

    Highly recommend attic Bros! they were incredibly professional and took fantastic care of my…read moreattic. Cleaning it up in a timely manner. employees were pleasant and they know what they are doing specially Nicholas who went out of his way to answer all of my questions patiently. i'm very happy with their service and recommend their service to everyone. Thank you Rofi

    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!

    Attic Masters

    Attic Masters

    4.7
    (128 reviews)

    Good price. The guy coming over is polite and patient. Nice follow up. Would recommend.read more

    If you're seriously considering Attic Masters, make sure that at the very least you get a second…read moreopinion, because here was my experience: Their technician, Sebastian, came out and did an inspection that, for reasons beyond my understanding, didn't include actually looking at our second attic space. Yet, he still included it in the estimate and priced it as a 1k sq ft job and called for removal and replacement of all the insulation. He recommended replacing all the ducting as well. The problem? Each of the four subsequent inspections I received noted that the space was small (less than a couple hundred sq ft) and clean with no issues. While he did inspect our primary attic space, he claimed that rats had gotten into the ducting and recommended that it all be replaced. Guess what? Each of the subsequent inspections noted that the ducting was in great shape, but just needed some outer insulation repair. Before I brought these issues to Attic Masters, I had a conversation with the Adam mentioned in other reviews and had the same experience those reviewers did where he was defensive and made it very difficult for me to get a word in. And, I emphasize - this was before I even brought up any issues! After I brought the above mentioned issues to their attention in a subsequent email? No apologies or acknowledgement of the obvious problems. They just tried to brush it all aside. I'm sure they have their reasons, explanations, and justification, but it sure seems like they were being dishonest with me. You have a lot of options when it comes to this work. Proceed at your own risk.

    Universal Insulation

    Universal Insulation

    4.8
    (151 reviews)

    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.

    Greenshield Insulation - insulationinstallation - Updated July 2026

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