HVAC reviews in Walnut Creek, California

EPB replaced our furnace, ductwork, and attic insulation with a properly sized heat pump, excellent insulation, and sealed everything well. The system is very quiet and our house has stayed very comfortable during summer heat waves (we have not been through a winter with the system so far). The proper sizing, insulation, and sealing allow this to be a very energy efficient system. Kyle worked with me and answered a ton of question from my first inquiry to the project's completion.

The crew was excellent, professional, efficient, and clean. They answered all of my questions and addressed any concerns. Everything about the crew gave me added confidence in the quality of the work. Huge thanks to the crew lead Alberto, Jordan and Cuong on the installation, and Paul, Eddy, Alex, and Omar on the insulation team.

I highly recommend EPB. They are more expensive than other options, but by using proper Building Science they determine the right, most efficient system for your home and the quality of the work is excellent.

I recently worked with Eco Performance Builders who installed heat pumps in my home in the Oakland hills. Given the configuration of my home it was necessary to install two separate heat pump units, as well as two new duct systems.

I was very impressed with the comprehensive way that the EPB staff approached this project, working to maximize the effectiveness and efficiency of these new heating/cooling systems while factoring in some unique facets of my home. The planners were very knowledgeable about these systems and did a good job explaining them to me.

I was equally impressed with the EPB crew who did the installation of the new systems. They were very hard working, efficient and congenial. I was especially impressed with the way that the onsite project manager coordinated the different aspects of the installation as he kept the project moving along. The project was completed within the projected timeline.

I am very pleased with the new systems. With both the heating and cooling, they are very quiet and throw off subtle but comfortable air.

Eco Performance Builders had been recommended to me as a company who were leaders and experts in the area of this energy-efficient approach to heating and cooling. The company exceeded my expectations in how they handled this project and I would highly recommend EPB to others.

Eco Performance Builders were easy to work with, experienced and competent, and provided solid advice with interest and respect, as we grappled with the best approach. Kyle, an engineer, helped us figure out the best material to meet our needs while also increasing fire resistance. After insulating our basement, walls, and attic, we are looking forward to many cozy seasons.

I had first contacted EPB when I first bought the house but at the time I was not in the position to afford any updates. I contacted Kyle again last December to implement all the suggestions they offered.
The work was completed in the time promised, their crew always cleaned up after themselves at the end of each work day, the wooden floors were always protected at the beginning of each workday. I can feel the difference in the water heater. Heating system and Air conditioner. We are very satisfied with the work done and I have been recommending the company to all my friends and acquaintances

We had a wonderful experience working with Eco Performance Builders. Their team including Kyle, Nick, David, Miroslav, and Paul did such an excellent and thorough job. They are so professional and kind. They truly went above and beyond to make me and my family comfortable during the installation process. And our home feels so comfortable now because of their great work. Thank you so much Eco Performance Builders!

We needed a new heater and went for a heat pump. Their approach is top shelf: our uninsulated house was insulated, new ductwork installed, recommended window replacement to allow for smaller system. One month in, and it clearly was the right investment. Thoughtful design, quality work, and great crews.

Eco Performance Builders recently installed a mini-split heat pump system in our home and insulated our attic spaces. From the initial estimate walk-through to the final day of the job, their team was professional, courteous, and thorough. Every employee we worked with was top-notch—knowledgeable, respectful, and clearly committed to quality work.

Don’t be discouraged by the lead time—this is a long-term investment that pays off in comfort, energy efficiency, and home value. We also found them to be competitively priced. We’re extremely happy with the results and highly recommend Eco Performance Builders to anyone considering a home energy upgrade.

I have now completed my second project with Eco Performance Builders. The first was a heat pump water heater in 2023 and the latest just completed project was a ducted heat pump hvac system with new insulation. I am thrilled with them both. The water heater was a challenging installation because of space limitations but they recommended a wonderful unit and with imagination and determination made it work in my space. The hvac system design was comprehensive, engineered, and perfect for my needs. The system itself is quiet and amazingly efficient. The staff was professional, considerate, good communicators and all-around nice people. It all began with Kyle who handled the initial inspection, estimates and contracts, as well as graciously answering my infinite questions, and included the stellar Alberto (crew lead on both jobs) and his truly excellent team, the insulation crew (great containment work), production manager, tech person, office specialists and more. I appreciated the big things but also the small things such as daily cleanup. While it took a good bit of time for them to get to my projects (because they are very very good, they are also very very popular), the work itself was completed on target and worth waiting for. I highly recommend Eco Performance Builders and only wish I had more projects to do with them.

I had Eco Performance Builders install two heat pump HVAC systems with new ducts, new attic insulation, and an ERV system for my house. From start to finish, they were very prompt, knowledgeable and professional. Their quote was reasonable for the expertise provided — all worth it for a quality job well done.

We recently hired Eco Performance Builders to replace an old gas furnace that was functioning poorly with a heat pump. It was a big job, and we’re extremely happy with how the project went, from start to finish. Every person we dealt with at EPB was very knowledgeable, professional and helpful. They did a thorough assessment and testing of our home’s needs to come up with a customized system design that would work most efficiently for us. We can already feel a difference in how quickly and evenly our house heats up and retains heat, and we’re delighted that we can’t hear the unit operating at all.

Our initial contact was with Kyle Bosworth, who helped figure out the scope and design of the project, and who shepherded it through to completion. Kyle was thorough, scientific in his approach, patient and a great communicator. He helped us make good decisions along the way (including putting down a vapor barrier in the crawl space below the house), and he and Denise Vera helped navigate the complex rebate application process.

The entire crew that worked on the project, headed up by Nick Duarte, was reliable, careful and pleasant to deal with. They stuck to the schedule, kept us informed of things that arose along the way, and cleaned up at the end of every day.

We highly recommend Eco Performance Builders if you’re thinking of making any improvements to your home’s HVAC systems. They’re absolutely first-rate!

I had Eco Performance Builders install a ducted heat pump, attic sealing and insulation, and a heat pump water heater at my house last year. I found the experience of working with them to be exceptionally positive.

From start to finish, every member of the team I worked with was highly professional, knowledgeable, and responsive. I always felt like I was talking to a friendly expert, not a salesperson.

They patiently answered all of my questions and worked with me to create a HVAC system that was perfectly tailored to my house. The installation work was smooth and efficient, and they were able to accommodate a few small change orders (e.g. relocation of a dryer vent) at a reasonable price. Their process for collecting rebates and incentives was very well-managed as well.

Overall, I'm very pleased with my new heat pump and water heater. My house feels comfortable year round, and it feels great to live in a fully electrified home. I'd enthusiastically recommend Eco Perfomance Builders to anyone.

They did a great job on maintenance of my heating and A/C unit. Recommend.

The Ariston team is great. They are professional and timely, I always trust their work. I have and do recommend them to my neighbors.

Great customer service, very helpful in explaining the components needed and working to identify the best fit for our home. Installation took 2 days (1 day shorter than estimated!) The technician's did a great job, were respectful of our home, very thorough and left the area clean and tidy. Thank you?

These guys know what they are doing!!
Fast, efficient & friendly

on time, on budget, good cleanup, nice guys. All good.

They were conscientious and did good work

Everything was great. Very careful about being neat and communication. Super professional guys!

Quick response, detailed inspection and report. All for a fair price. What more could you ask for? Oh, very professional and friendly personnel.

I've worked with Ariston as a general contractor and have always been impressed with their work. They deliver excellent results, are dependable, and I trust them completely with my clients.

Ariston came out and accessed the problem which another company had been unable to figure out. They then quickly ordered the part and fixed it, thank you!