Roofing, HVAC & Construction in Fresno, Sacramento, Bakersfield & Surrounding Area

Stop Hidden Leaks. Our X-Ray Roof Tech Finds What Others Miss

  • X-Ray Precision: Pinpoint invisible damage.
  • No Outsourcing: Only trusted, in-house experts.
  • Total Solutions: Roof, HVAc, Solar-Integrated.
Rated 4.8 (1200+ Reviews)

Roofing, HVAC & Construction in Fresno, Sacramento, Bakersfield & Surrounding Area

Stop Hidden Leaks. Our X-Ray Roof Tech Finds What Others Miss

  • X-Ray Precision: Pinpoint invisible damage.
  • No Outsourcing: Only trusted, in-house experts.
  • Total Solutions: Roof, HVAC, Solar-Integrated.
Rated 4.8 (1200+ Reviews)

Nearly 30 Years of In-House Multi-Trade Mastery

No Guesswork. Just Irrefutable Proof.

Grandmark Home Improvements

Most contractors are blind to how different trades impact one another. Because our licensed, in-house employees handle everything—from roofing and HVAC to solar and insulation—we eliminate the disconnect. You receive seamless execution and the highest quality delivered every time.

  • X-Ray Tech Technology
  • Video Proof on Every Job
  • Financing Experts

Unlock 0% Financing & X-Ray Precision for Your Project.

Protect Your Home and Budget with Pre-Approved Financing & Precision X-Ray Inspections.

Structural Restoration & Integrated Solutions

Roofing

Protecting homes and business with lasting repair & Installations

HVAC

Exclusive X-Ray diagnostic technology for 100% repair accuracy.

Commercial

Minimize liability & ROI with X-Ray accuracy.

Energy Efficiency

Stop energy leaks you can't see.

100% Diagnostic Accuracy. Real Results from Local Homeowners

Delivering X-Ray Accuracy Across Central California

Explore our recent roofing and HVAC projects. See where our diagnostic technology is saving homeowners and businesses money in your neighborhood.

SERVICE AREAS

Proudly Serving the Central Valley & Beyond

Grandmark Brand

North Valley & Capital Region

  • Sacramento

  • Stockton

  • Modesto

Central Valley

  • Fresno

  • Clovis

  • Visalia

  • Merced

South Valley

  • Bakersfield

  • Tulare

 

Frequently Asked Questions

Why do you use X-Ray technology for inspections?

Most contractors rely on visual inspections and guesswork, which often leads to unnecessary full replacements. Our X-Ray and thermal diagnostic tools allow us to see the invisible—like hidden moisture tracking under shingles or failing internal AC components—so we guarantee 100% repair accuracy and save you money.

Do I really need a full roof replacement?
Do you handle large commercial properties?
If you find a problem, can you fix it the same day?