This was such a positive investment and experience. Professionalism from the start of the process…read morethrough finish. Alfredo and his assistant came to my home in Willow Glen and performed a full evaluation of where the energy loss was coming from and what options I had to mitigate it. His report was thorough and I liked that he prioritized what I need to do right away and what can wait. Alfredo had a call with me to go over the results of the various tests that were run and made sure I understood every detail. Very happy I engaged them and I am looking forward to having warmer winters and lower energy bills

Several years ago, we had our first HERS test performed by Elem3nts - and no surprise, our 40 year…read moreold ducts were leaking badly. Fast forward to the present, the HVAC company we selected for a new heat pump and ducts uses Elem3nts to do the required HERS testing AND handle applying for the homeowner's rebates from Silicon Valley Clean Energy and TECH Clean (very convenient). The entire process was smooth - quick and painless. The Elem3nts team was on time, professional, and left the house just as it was after they were finished. They're very experienced and knowledgeable about HERS testing. Communication around scheduling was excellent, and one rebate has already been received and the other is on its way. Elem3nts has been great!

We highly recommend Innovative Energy Solutions HERS Testing. They were referred to us as the best…read morein the industry. From the start, we experienced and felt valued as a customer. We were impressed with Bryan's outstanding professionalism and excellent skills. We immediately noticed his sincere interest, dedication and integrity with regards to resolving any concerns that we had. He was also punctual and very neat and clean. So, it is with sincere pleasure that we would like to acknowledge and commend Bryan for providing us with the very best service. His work is impeccable and exemplary. Katie, at the office, also kept us informed every step of the way. She has impeccable business etiquette, listening skills and professional decorum. We continue to be very grateful to both Bryan and Katie for their time and assistance. You can rest assured that they are a refreshing asset to their industry.

Even 100 stars could not do the justice to what a professional, efficient and caring service that…read moreKatie and Bryan provided: 1. Katie immediately answered my first phone call, explained HERS and the entire process to me, with a super reasonable quote; 2. From the moment I decided to work with them, Katie sent me texts and emails with appointment schedule, and straight forward guidance of CalCERTS registration and reports; 3. The certified validator Bryan arrived on time, with needed equipments and tools, and was VERY POLITE and RESPECTFUL of our property. Just as much as Katie does, he cares about his customers. The HERS testing went so smoothly and professionally. Bryan explained the policy limit of inflow/outflow efficiency ratio must be less than 5%, and we passed. Bryan left passed 12pm, by 4pm the same day we received CalCERTS official report and certificate in our email from Katie. From my first confirmation with Katie, this HERS testing project was done in less than 3 business days! It could be done in 24 hours but I would not be home that time so Katie coordinated per my schedule! After 1.5 years working on a (still ongoing) house addition&renovation project and experiencing so many headaches caused from unprofessional (and/or greedy) contractors, Katie and Bryan are definitely THE BEST. If you ever need HERS testing in Bay Area, please, support honest and great people like Katie and Bryan!

Our roof started leaking during a recent thunderstorm through our Sun Tunnel / skylight. I sent…read morethem a message through Yelp and they responded right away and had a roofer come out within an hour from the initial response. They did a temporary fix which stopped the leak right away and then followed up to come back and redo the shingles to properly install them as it was not installed correctly by the contractor who installed it initially. They also patched several other spots on the roof and we haven't seen any leaks since even with heavy rainfall. Highly recommend.

R E Roofing put a new roof on my house. They were excellent. Superior workmanship. Faultless…read moreproject management. Pleasant to work with. They are a family-owned business with years of experience. I highly recommend R E Roofing.

This is long overdue, a number of years ago we had building efficiency come out and assess our…read morehome, I felt like they were so knowledgeable, professional, and informative - it was truly a pleasure. The pricing also seemed extremely reasonable. We ended up doing insulation in our ceilings, such a seamless experience and they supported with the rebate process, had finances not been a limitation we would've done walls. Highly recommend, in fact writing this review has inspired me to loop back with them about their suggestion that our furnace is waaaaay overdue.

Installed my furnace in 2018. They moved my furnace in wall to attic which makes it hard to reach…read more In December 2025 Co detectors fired up twice. Since the furnace should be still under warranty I contacted them by email and phone but no response. Don't be fooled by the yelp ratings. This business is hard to work with after the initial purchase.

I needed a HERS test for SJ permits. Revolution Energy was easy to schedule, fair price and great…read morework. Highly recommend!

Louis was so kind to schedule my duct pressure test on Saturday since I work 2 jobs. He arrived on…read moretime and was so professional. He inspected my system then said he didn't think his test would find anything but I wanted him to do it just for peace of mind because the result would help me know next steps toward solving my issues. He confirmed that my duct pressure was excellent then recommended that all of the duct openings be sealed with duct tape, a proper drain be installed under my home for the condensation that was just leaking onto the plastic liner under my manufactured home creating a stagnant pond under my home and I was smelling it because it was leaking into the open gaps around each of my vents. I have contacted an HVAC company who can complete the work for me. I would most certainly recommend Louis to my friends and family in a heart beat.

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!

These folks have their act together. Quick response, clear explanations, lots and lots of photos of…read moreyour attic. I hired them to suck out all the rat-infested insulation from the attic, seal it up, and put in new insulation. They did all this, and at the end had photos of the attic, clean as a whistle, and of all the places where they put in barriers. Their insulating job at the end looked great - I stuck my head up in the attic and it was a beautiful field of pink. You even get a survey at the end.

We needed to get plans submitted before the end of the month for our house addition & renovation. I…read morehad called several Title 24 report providers and there was quite a range in prices. They all charged an expedite fee to do a rush job. My architect recommended Nick, and I am SO glad we chose him. His expediting fee was more reasonable than the others, and when I explained our urgency, he jumped on our project the next day. He asked a lot of detailed questions because he places a high priority on accuracy, while at the same time using solutions that will be cost effective. He is top notch in his trade, hardworking and very honest. I felt that we got a lot more than the price he charged. I would recommend FRI Energy very highly, and if I could give Nick 10 stars, you would have seen it here! Thank you Nick!!

These guys are amazing! They do quality work and are very professional. Their turnaround is really…read moregreat.

Bi-annual visit to check HVAC system and replace filter. Communication is super important to me and…read moreAIS is all over it with the text messaging to remind you and confirm your service and also when your tech is on their way. 5 stars! Once Leon R got to my place, he was professional and courteous, treating my home as if it was his mom's house. He explained what he was going to do prior to service and then explained what he performed after service. I've been a long time customer of AIS and I signed to be their customer for at least another year. Thanks for keeping my HVAC system tip top!

I've been with this company for almost 10 years, and they have always provided great service. I had…read morea check-up with Kevin today, and he gave excellent customer service. Very professional, friendly, and helpful. Highly recommend this company for AC and heating services!

Vincenzo is very professional and knowledgeable. Very easy communicate through messages. He…read morepatiently walked me through the process and treated my place carefully.

Vinny is fast, reliable, and very knowledgeable. I hired him…read moreto do a HERS test and to check the duct leakage. Very happy with the service received and would gladly recommend him. He showed up on time and was respectful of my property and health concerns.