Polartech Llc

Polartech Llc handles residential HVAC work out of Walnut Creek. Sean runs the day to day operations and takes care of repair, maintenance and installation on heating and cooling systems. The company focuses on homes in the area and handles everything from routine service calls to full system replacements. They cover standard setups plus ductwork and mini split units as needed.

Customers call when heat stops working in cold weather or when an air conditioner quits blowing cold air. Sean has fixed thermostat issues, replaced condensation pumps on the spot after finding parts locally, and sorted out complicated heating problems that other techs could not solve. He has also installed dual zone mini split systems, replaced water heaters, repaired ducts, and handled minor issues found during home inspections. In each case the systems ran properly afterward and stayed that way.

Sean shows up on time, keeps the work area clean, and explains the problem and the fix in plain terms. He provides detailed quotes before starting and charges prices that homeowners describe as fair compared with bigger outfits in the Bay Area. Response times stay quick even on holiday weekends, and communication stays straightforward throughout the job. The company works on both new and existing homes without pushing extra services.

All twenty one Google reviews give five stars and the same points come up again and again: quick fixes, honest advice, solid workmanship and reasonable costs. DIRT Score 4.4 from 21 reviews on Finds.

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

“I am so thankful that Sean responded to our call for ductwork help. He was efficient, communicated our problem clearly, and was able to provide service and repair our ducts right away. We will definitely be using PolarTech in the future.”

“Since buying our home, Sean has become the only pro we want working on our HVAC. He's professional, on-time, provides timely detailed plans and quotes, knows what he's doing, and is just great to work with. We had him take care of some minor issues identified in the home inspection, then called him back out to diagnose and fix a problem with the heating system, and this week he replaced our water heater. We highly recommend PolarTech!”

“Sean diagnosed my mini split problem quickly and got it all fixed up. It’s been working great ever since! Communication was super easy and he was right on time for the appointment. Highly recommend!”

“I want to thank Polartech, specifically Sean for working on my system. I had no heat, the thermostat was not powering up, and temperatures outside were very cold. Sean was able to respond quickly, and diagnose the problem as the condensation pump not working. Sean immediately found the part locally, and replaced it. I now have heat in my home. I highly recommend this company, and will definitely keep them on speed dial.”

“Working with Sean was quite literally one of the best customer service experiences I have ever had! I had an extremely complicated heating situation that multiple technicians from other companies were unable to solve for months, and after extremely diligent and professional acumen by Sean at PolarTech trying every possible trouble spot he solved it. He is a total pro and talented and honest. 100% go with him.”

“Super professional and true five star experience. Great communication and exceeded expectations across the board”

“Amazing Customer service. On time, friendly, knowledgeable and extremely helpful. I will be bring all of my AC concerns to polar tech from now forward. Thank you so much for efficient exemplary work you are so appreciated.”

“I had an outstanding experience with PolarTech. Sean installed my Fujitsu dual zone mini split system in my condo and I absolutely love it. The quality of his work was exceptional. He was extremely clean throughout the entire process, kept the workspace tidy, and made sure every part of the installation was done with real care and attention to detail. The final result looks very professional with clean lines and solid workmanship. Sean took the time to explain how everything works, answered all my questions, and made sure the system was running perfectly before he left. The price was also very fair compared to the larger HVAC companies in the Bay Area. You can tell Sean truly cares about his customers and takes pride in the work he does. I am very happy with the installation and highly r”

“I cannot say enough good things about PolarTech and, specifically about Sean. Our air conditioner was not blowing cold air and before I was able to get in touch with Sean (it was a Holiday weekend) I had another technician take a look at the unit and give me an estimate. Because Sean came highly recommended I was really relived when we were able to finally connect. He promptly came over and got it fixed. He is so professional, very honest and went over and above for us. He is a trustworthy professional and charged a fair price. It is rare to find someone like him who is willing to take his time, provide information, be so very skilled and responsive. He is just the nicest person too so that was an added bonus for us! I wholeheartedly recommend PolarTech without reservation!”

“Sean was professional, solved the issue quickly, and was super affordable! Polar Tech will be the only HVAC company I use going forward.”