We'd love to meet you and give you the perfect solution



We know that you have a lot of options among roofing and home improvement contractors. Despite the variety of choices, one company of professional roofers and solar installers stands head and shoulders above the rest. At Grandmark Energy, a few distinct qualities sets us apart.

Emphasis on Energy Efficiency: We place major emphasis on home improvements of and/or business’ energy efficiency. Our practices reflect the following, as does our expertise with the design and installation of solar panel systems. Furthermore, we offer a range of services, all of which improve your home’s comfort while lessening its carbon footprint. This includes attic insulation, window replacement, and HVAC services.

Cutting Edge Technology: We take our work seriously, especially when it comes to energy efficiency improvements. Whenever new technology appears, we incorporate it into our services. Bottom line, you can always count on cutting-edge technology and techniques when you work with Grandmark Energy

About Grandmark Energy


We’re the Local Professional energy Efficient Contractor of Choice for Fresno, Sacramento, Modesto and Surrounding Areas.
The team at Grandmark Energy is your local solution for energy efficiency in solar panels, roofing, Ac windows and more. We’ve faithfully served over 20,000 clients over more than 20 years in business. We owe all of our success to this community, and we feel grateful. In thanks, we make sure to stand by every commitment we make, whether it’s an appointment or project completion, and always maintain the highest standards of excellence.
As professional roofers for Central California, we offer a level of service you simply cannot find elsewhere. As solar panel and energy efficiency specialists, we can create residential and commercial systems that achieve total energy independence. To learn more about our company or services, we invite you to call 866-559-5670 anytime you like.


We served as professional roofers for the region around Central California for over 20 years. We’ve developed close familiarity with how to install roofs, windows, and solar panels perfectly suited for the local climate. We also have a long track record of success that you can easily verify thanks to local reviews. Regardless of the work you need, you’re in good hands with Grandmark Energy

Clean Energy

No other company has a level of expertise with solar panels comparable to ours. We can outfit any home or business with an optimized solar panel system for comprehensively clean energy. If you want total energy independence, we can make it happen.

Trusted by Your Neighbors

Thanks to the thousands of locals we’ve faithfully served, we’ve become the top roofing and solar panel company in the region. We’ve received a lot of support from this community. Everyday, we strive to repay this through reliability, hard work, and the expertise to finish every project on the first attempt.

Your Local Professional Roofers

When you work with Grandmark Energy, 100 percent satisfaction is guaranteed. We place a huge emphasis on customer service, and will never consider a job finished until we have exceed every possible expectation. For the top-tier solar panel specialists and professional roofers in Central California, choose Grandmark Energy. If you have any questions or would like to schedule service, give us a call today at 866-343-8410.

Corporate Office

1919 E Ashlan Ave

Fresno, CA 93726

Offices: Modesto, Sacramento, San Jose & Fresno