HC
Harry Clark Heating and Air Conditioning
Thorough assessments, expert installs, and dependable HVAC service in Oakland.
4.8
Home Services
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Thorough assessments, expert installs, and dependable HVAC service in Oakland.
Harry Clark Heating and Air Conditioning in Oakland delivers heating and cooling upgrades with a focus on thorough home assessments, clear quotes, and reliable installation. Reviews highlight Don Marshall’s detailed system evaluation, two-zone heat pump proposals, and a skilled crew that completed the project efficiently. Responsive service and effective problem resolution contribute to strong, consistently positive feedback.
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Professional installation of heating and cooling systems, including heat pumps, furnaces, and air handlers, with detailed assessments and competitive quotes.
Reliable repair services for existing systems, including troubleshooting, part replacements, and routine checkups to ensure optimal performance.
Expert plumbing solutions such as drain snaking, pipe repairs, and system upgrades, handled by skilled technicians for residential and commercial needs.
Specialized upgrades to replace gas furnaces with energy-efficient heat pump systems, including zoning and rebate assistance for improved home comfort.
Complimentary assessments and design services for HVAC projects, providing sizing, pricing, and rebate information to help plan your installation.
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Overall rating
jeff adams
We took advantage of the free design services for a heat pump heating system offered by QuitCarbon. After completing their home assessment questionnaire they gave us sizing, pricing and rebate information. QC referred us to Harry Clark Heating and Air Conditioning for a complete upgrade to replace our gas furnace. HC owner Don Marshall spent an hour and a half assessing the existing heating system in our 1908 home, answering all our questions and providing a detailed quote for a two zone system the next day. After reviewing the quote with QuitCarbon, we decided the price was competitive and chose not to get other bids. I should mention that I’m a licensed mechanical engineer and have lots of experience working with contractors. Armando Hernandez and his crew completed the install in one week and we were up and running on day 5. The quality of the workmanship was excellent. Armando addressed my many questions and was a pleasure to work with. There was an issue with a defective part in the air handler. The project manager Matt Schwoyer was able to resolve it with their supplier, and the part was replaced the following week. Everyone at Harry Clark was professional and responsive throughout the whole project. We are pleasantly surprised with the improved and consistent comfort level in our home and would recommend HC to anyone considering a heat pump retrofit.
Pathy Lakshmipathy
Harry Clark did an excellent job of replacing my aging gas furnace with a hybrid heat pump. They also provided me with zoning which I didn't have before. Everything is working great and they did a good job.
Fred Whale
certain things like paying taxes, root canals and colonoscopies come with being a grown up. every adult has had to replace a furnace or air conditioning system. last week my heat wouldn’t come on and a repairman came out to fix it. he told me the unit needs to be replaced to the tune of $6,500. being a trusting individual, as i lowered my trousers so they could shove the hoses up my butt, i called Harry Clark for a second opinion. Harry agreed the furnace is old and will eventually need to be replaced but the reason it wasn’t working is the thermostat. he changed the filter and replaced the thermostat. thanks to Harry Clark, i feel like a kid again.
Sheila Press
Harry Clark is the best. I always call them for the checkup on my furnace (which they installed), and any plumbing problem. Reliable, honest, and expert. Never any kind of problem with their service.
Frank Hennefer
Had a need for Harry Clark Plumbing to snake a drain and the tech got through the crapola perfectly. I’ve always had pleasant experiences with Harry Clark, both plumbing and heating. As a property mgr and broker I recommend HC.
