If your home feels consistently cold, regardless of the efforts of your furnace, you should consider attic insulation installation. The installation of blown-in or spray foam insulation will not only make your home much more comfortable, but reduce the workload on your air conditioning system to prolong its overall life and reduce your energy bills.

Nothing Improves Building Comfort Like Insulation

Great Prices On Retrofit Projects





Have you taken to wearing sweaters while inside your home? Do you continually increase your thermostat to limited effect? If so, attic insulation represents the type of home upgrade that will make you wonder how you ever lived without it. As winter tightens its grip, you can expect your heating bill to continually rise. If you’re in need of a solution, consider this: a well-insulated attic can cut up to 50 percent off your heating bill. Also, winter isn’t the only season where you’ll see benefits. Throughout the hottest days of summer, your insulated attic will stabilize your home’s temperature, prevent the escape of cool air, and prevent the transfer of heat from your roof. If you’d like to learn more about your insulation options, or want to schedule attic insulation installation in Central California, call our team today.


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


As prices for natural gas and heating oil continue to rise, attic insulation represents a very wise investment. At Grandmark Service Company, we perform attic insulation installation that will leave your home warmer, more comfortable, and more energy efficient.


If you have anything stored in your attic, we ask that you have it removed prior to the start of our insulation job. We also recommend that you have an energy audit performed. This information allows us to design the best strategy to insulate your attic, as we can identify air leaks and determine the value of keeping any existing insulation. Once we finish, we will begin the new installation. All the steps involved in this process include:

  • Remove Any Stored Items from the Attic
  • Settle on Your Preferred Type of Insulation
  • Determine the R-Value of Existing Insulation
  • Decide Whether to Keep or Remove Existing Insulation
  • Settle on a Target R-Value
  • Check for Rebates and Tax Credits
  • Seal Existing Air Leaks
  • Install a Vapor Barrier, if Necessary.


The team at Grandmark Service Company stands ready to serve all of your attic insulation needs. Since we are also roofers, we can identify any trouble areas we see on the underside of your roof. As a total service solution, we proudly stand as the premier source for attic insulation installation in Central California. To ask any questions or set up a time for service, simply give us a call.

Grandmark Service Company Van

Contact Us

Please enter your name.
Please enter a valid email address.
Please enter a valid phone number.
Please type your message.


  • 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.