Get matched with top thermostat installers and replacers in Fremont, CA

"Air Concept quoted me a very reasonable price on cleaning 2 wall furnaces at a duplex recently. I had one other quote before for an outrageous price. Charles, the owner, was very honest about the work that involve- only vacuuming off the dust inside the furnace basically. The two employees were punctual and courteous. I thought they would include vacuuming or wiping down the furnace cover as part of the cleaning. They did after I asked about it, so they did one cover at the 2nd unit. That's why I took off half a star. Other than that, I am satisfied with their work and would recommend their service again."

At MDP, we pride ourselves on our commitment to transparency, affordability, and exceptional customer service. Our certified technicians ensure every project is completed with the utmost professionalism and care, keeping your comfort and satisfaction as our top priorities.\n\n📞 Contact us at (669) 400-6792\n📧 Email: accounting@mdphvac.com\n💻 Website: https://mdpheatingcooling.com/\n📜 California License #1103720.\n\n\nOur services include:\n✅ Furnace and heat pump diagnostics and repairs\n✅ Duct cleaning\n✅ Expert HVAC system installation and maintenance\n✅ Thermostat installation and optimization\n✅ Free second opinions on previous HVAC estimates

"Rittinger responded quickly. Alan, the tradesman they sent over was professional and quick. I hired them to install a clothes dryer vent and to open up a vent in my garage for the hot water heater. The work was high quality and installation was clean."

"Josh did a great job on my roofing repair! He showed up when he said he would, and the roof looks great! He also installed some replacement skylights and siding. He sent many pics of the job as I wasn’t able to be there when the work was performed. I will definitely use him again."

Giant HVAC is a locally owned and operated heating and air conditioning company based in Fremont, CA, proudly serving the Bay Area. With over 20 years of hands on experience, we specialize in HVAC system replacements, air conditioning installations, furnace upgrades, ductwork, and zoning systems.\n\nWe focus on doing things the right way with clean installations, properly designed systems, and honest recommendations tailored to your home and budget. No pressure and no shortcuts.\n\nWe are licensed, bonded, and insured, and we handle everything from start to finish including permits, HERS testing, and final inspections.\n\nWhether you are upgrading to a high efficiency system, adding air conditioning, or looking for better comfort throughout your home, we take pride in delivering reliable and long term solutions.\n\nGiant HVAC built on comfort, honesty, and quality workmanship.

"His work is really good. I've hired him for a few different jobs. Just recently he replaced my security door and a few of my exterior windows. He is now my Go-To-Handyman."

"Daniel did a fine job. Wow, what a Difference. Going from twenty year old Philips tubes TV - very heavy - to the high resolution HD Best Buy "Insignia" 32 inch TV. The old TV died two days ago. This was a big deal in my life, switching TVs. This all got done more simply than I imagined. Set up new TV with take away old TV."

"Eloah Jireh Heating and Cooling are so reliable and friendly it was so easy too communicate with them very flexible. Fair prices and very fast to get job done and to reach out with a quote! Thank you I’ll definitely be doing more jobs with them."

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Miller’s HVAC is Livermore’s trusted choice for reliable heating and air conditioning services. Our certified technicians provide expert installation, repair, and maintenance for furnaces, air conditioners, heat pumps, and duct systems. We’re dedicated to keeping your home or business comfortable year-round with honest pricing, quality workmanship, and exceptional customer service.\n\nWe proudly serve Livermore, Pleasanton, Dublin, and surrounding Tri-Valley areas. Whether you need an energy-efficient upgrade, seasonal tune-up, or emergency HVAC repair, Miller’s HVAC delivers fast, dependable results you can count on.\n\nServices include:\n• HVAC installation & repair\n• Furnace & A/C maintenance\n• Indoor air quality solutions\n• 24/7 emergency service\n\nCall Miller’s HVAC today for a free quote and experience the comfort you deserve!