Go solar and start saving big on your electric bills
With solar energy, you can save as much as 30-50% on electric bills and avoid the headaches that come with future hikes in rates. With Grandmark Service Company, going solar is easier than ever before. We offer solar systems that stand the test of time, while helping you take full control of your energy cost.

Get Solar Panel Inverter Upgrade No Extra Cost

Financing Available 18 Months No Payments No Interest.

Save on HVAC

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To enjoy the benefits of professionally installed solar panels, Grandmark Service Company is your best bet. We have the required expertise, experience and a wide range of solar products to give you maximum value for exchange. We are dedicated to increasing energy efficiency for both residential and commercial clients.


We partner with global manufacturing giants to provide you with quality solar solutions that stand the test of time.
Reach out to us and lets talk about how solar can save you cash
At Grandmark Service Company, our solar experts are committed to giving you total energy independence. We partner with reputable manufacturers to design and install quality solar systems that put you in control of your energy. For further questions, you can book an appointment with our solar consultants.


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


Residential Solar Services

We provide professional solar solutions for homeowners. From solar installations, to repairs, to maintenance, we've got you covered. Be rest assured that with us, you are guaranteed 100 % solar project management for the benefit of your home.

Commercial Solar Services

Our reliable solar solutions can help business owners maximize profit. Explore our available solar systems today for the benefit of your business.

Solar panel roof experts

Our solar roof experts are trained to install, repair, maintain and provide maximum energy efficiency for home owners and businesses.

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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

Get 18 Months No Payments No Interest Financing

Explore more plans by requesting your free project consultation.