At Grandmark Service Company, we're dedicated to keeping our customers comfortable all year round. That's why we offer heating repairs. If you're having trouble with your furnace or any other type of heating system, we're here to help. Call us today for a free estimate, and let us help you stay warm all winter long!

When Your A/C Breaks or Needs Replacement

Financing Available 18 Months No Payments No Interest.

When Your A/C Breaks or Needs Replacement

Financing Available 18 Months No Payments No Interest.

We understand that heating repairs can be complex, especially on package units. But our team of skilled technicians is up for the challenge. We'll diagnose the problem and give you a free estimate on the repairs. We only use high-quality parts, so you can be confident that your repair will last. And we'll even recycle your old parts for you.

We know that staying warm in the winter is important to you, so we offer 24/7 emergency services. We'll be there when you need us, day or night. So don't wait – call us today and let us help you stay warm all winter long.

Grandmark Service Company is the air conditioning company to call when you're in need of air conditioning or heating services. We're a highly trusted and reputable HVAC repair company with many years of experience serving the community. When it gets hot or cold, you can trust our services to keep you comfortable. We're always available to answer any questions or concerns you may have, and we'll work quickly and efficiently to get your HVAC system up and running again. Contact us today to schedule a consultation. We look forward to serving you!

Grandmark Service Company


Book a consultation with our expert comfort advisors and let the rest to our awesome team.

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  • I recently used Grandmark Service Company for a roofing repair project and new ductwork for my central air and heat unit. Two new solar light tubes and two exterior roofing vents for my whole house fan. First Grandmark was quick in sending out a Technologist to assess my roofing repair. The repair was done in a very professional manner with special attention paid to a down spout. I can't thank that tech enough for the excellent work and attention to detail. I then decided upon inspection of my existing ductwork to have it replaced. Again, the crew removed all the old ductwork out the top of the attic where the new exterior vents would be placed saving me a ton of clean up. Throughout this process they provided tarps on the floor and did a thorough clean up at the end of the day's work. All crew member's were professional and friendly and answered any questions. If I could I would give them ten stars. But for this review five stars will have to do. Again, thank you Grandmark service company. I won't hesitate to use you again should the need arrive.

    thumb John Ruch
    November 26, 2022

    Recently moved to the central valley, got 3 quotes from other companies that were way over priced. They finished the job in less than two weeks. Highly recommend this crew..will be using them for solar install in the future

    thumb Ruben Hernandez Avina
    November 19, 2022
  • Tony Arevalo was very professional and helpful. Grand mark service is awesome. Best experience I have had with HVAC so far.

    thumb nike omijori
    November 10, 2022

    Tony very professional. We we very pleased and estacic with everything Tony did for us.

    thumb Albert Scott
    November 10, 2022