3Rdgen Heating And Cooling

3Rdgen Heating And Cooling runs residential and commercial HVAC work out of Berkeley. The company handles heat pump installation, full system replacements, Manual J load calculations, ADU setups, remodels, new construction, and ventilation work across the Bay Area including San Francisco, Marin County, and the East Bay. They also take on commercial jobs such as tenant improvements, VRF systems, and multifamily projects. The team operates from 1230 4th St in Berkeley and can be reached at 510-399-4090 for project discussions.

Homeowners and business owners describe solid results on air conditioning installs, multiple mini split systems, and heat pump upgrades. One customer had a full AC unit put in and noted the crew finished on schedule, explained each step, and left the house clean. Another project involved several mini splits where the installers arrived each day ready to work, kept progress updates coming, and made sure every unit ran right before leaving. Devin handled a commercial heat pump job by walking through options clearly and delivering the promised comfort levels, while another office mini split went in smoothly after he sized the right equipment and answered every question on the spot.

The crew shows up when they say they will, stays in touch during the job, and cleans up at the end. Reviewers mention respectful treatment of property and clear communication from start to finish without pressure on choices. Work covers the full Bay Area service list from the company, and the same approach applies to both smaller residential replacements and larger commercial or multifamily installs. Customers note the finished systems run without issues and that the team took time to show how controls and maintenance work.

Ratings sit at the top across hundreds of reviews, with repeated comments on on-time arrivals, neat installs, and straightforward advice from the crew. DIRT Score 4.9 from 212 reviews on Finds.

DIRT Score = confidence-weighted rating across verified review platforms. How is this calculated? →

“We recently had our air conditioning installed by this heating and cooling company, and the entire experience was excellent from start to finish. The team was professional, punctual, and took the time to explain the installation process and answer all of our questions. The installation was completed efficiently, and they treated our home with care, leaving everything clean when they were finished. Our new AC works great, and we’ve already noticed how much more comfortable our home is. It’s hard to find companies that are honest, reliable, and take pride in their work, but this team exceeded our expectations. We highly them to anyone looking for quality heating and air conditioning service. Thank you for a job well done!”

“We had a pretty big project that needed multiple mini split systems installed, and these guys did a great job. They showed up on time every day, kept us updated on the progress, and the quality of the installation was impressive. You can tell they take pride in their work because everything was installed neatly and nothing felt rushed. Every mini split has been working perfectly since the install, and they made sure we knew how everything worked before they wrapped up. They also cleaned up after themselves, which I really appreciated. If you're looking for an HVAC company for mini split installation, ductless air conditioning, heat pumps, or even a larger commercial HVAC project, I definitely recommend them. Good communication, fair pricing, and solid workmanship. I'd use them again without hesitation.”

“After talking with a few HVAC companies, we decided to go with 3rdGen and it was the right choice. Devin was honest, knowledgeable, and kept us informed throughout the project. The crew was respectful of our property, and the finished work looks great. I would definitely recommend 3rdGen to anyone needing HVAC services.”

“We were looking for a more modern heating and cooling solution for our commercial space and decided to go with a heat pump. 3rdGen walked us through the options without any pressure and delivered exactly what they promised. The comfort throughout the building has been noticeably better, and we couldn't be happier with the investment. You won’t regret it! Choose them”

“So , We recently upgraded our office with a new mini split system, and Devin at 3rdGen made the entire process easy. He answered all of our questions, recommended the right setup for our space, and everything has been working perfectly since the installation. We'd gladly work with Devin and the 3rdGen team again ! 🫶🏽🫶🏽”