Your #1 Choice for Residential & Commercial Roofing & HVAC

Boost Efficiency, Safety, and Comfort in Your Home or Business.

Your #1 Choice for Residential & Commercial Roofing and HVAC

Boost Efficiency, Safety, and Comfort in Your Home or Business!

Enhancing Lives with Specialized Roofing and HVAC Expertise

  • Roofing

    Protect Your Home with a Durable, Energy-Efficient Roof—Designed to Last.

  • HVAC

    Enhance your comfort with a high-efficiency system and start saving today.

  • Insulation

    Keep Your Home or Business Comfortable Year-Round with Advanced Attic Insulation.

  • Solar Removal

    Maintain Your Solar Investment with Reliable Installation, Removal and Reinstallation Services.

  • Roofing

    Protect Your Home with a Durable, Energy-Efficient Roof—Designed to Last.

  • Air Conditioning

    Efficient, Reliable HVAC Solutions Tailored for Your Comfort and Savings. 

  • Attic Insulation

    Keep Your Home or Business Comfortable Year-Round with Advanced Attic Insulation.

  • Solar Removal

    Maintain Your Solar Investment with Reliable Removal and Reinstallation Services.

Limited Time Offers - Act Now!

FREE DIAGNOSTIC As low as $39/Mo.

Offer Details:

  • Get your in-depth HVAC diagnostic FREE when you approve your repairs. $325 minimum.
  • Financing that fit your needs
  • Guaranteed extended performance warranties & more...

FREE VIDEO ROOF INSPECTION Roof Repair & Inspection

Offer Details:

  • Get a FREE video roof inspection
  • Know and prevent lurking potential problems
  • Get repair estimates same day
  • 100% satisfaction guarantee & more...

Our Story

Since 1995, Grandmark Service Company has been transforming homes and businesses with expert roofing and energy-efficient air conditioning solutions. Our mission is simple: use energy savings from upgraded systems to help pay for the projects. With a team of highly trained professionals, we deliver top-quality results that save our customers money and enhance their comfort—all while building lasting trust in our community.

Grandmark Service Company
Grandmark Service Company

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Family Owned & Operated Company

Since 1995, Grandmark Service Company has been proudly family-owned and operated, bringing a personal touch to every roofing and air conditioning project. Being family-run means more than just a business structure—it’s a commitment to treating every customer like part of our extended family.

Grandmark Service Company

From the very beginning, our focus has been on building strong, lasting relationships with our clients. We understand the importance of trust, and that’s why we stand behind every project, ensuring quality, transparency, and care. Our team of experts is not only highly trained but also shares our family values of honesty, integrity, and a dedication to excellent service.

By staying family-operated, we’ve been able to maintain a hands-on approach, ensuring that every decision we make prioritizes the best interests of our customers. Whether it’s upgrading a roof, installing an energy-efficient AC system, or offering financing options to make projects more affordable, we’re here to provide solutions that benefit your family—and ours.

Our Service Areas

Service Areas

We proudly serve several locations near you, ensuring fast and local service. Our team covers the following counties:

  • Fresno
  • Sacramento
  • Stanislaus
  • Merced
  • Mariposa
  • Kings
  • Tulare

If you’re in any city within or surrounding these counties, we’re here to help!