What's the game plan? Start by calling Grandmark Service Company to generate an estimate for the repairs needed. Once you have received the estimate, analyze it to see if it includes everything that needs to be fixed and that the price seems fair for the amount of work required. Make sure that the company you choose offers warranties on their work in case something goes wrong after they have completed the repairs. It's also important to be available when the work starts in order to answer any questions the workers may have and make sure they are doing the job properly. Once they finish, request a detailed report of everything that was done so you can review it later. Finally, when you pay for the repairs, make sure to ask for copies of any warranties offered in writing so you have them on hand in case you need them in the future. By following these steps, you can ensure that your roofing repairs are done correctly and that your home stays protected against future leaks.


  • 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

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