When Quality & Experience Matters

Contact Your Trusted Local Energy Home Improvement  Professionals

window33 Windows

foanmama AC & Heating

roof Roofs

solar-icon Solar

side-icon Remodeling


Since 1996, we’ve helped homeowners and business owners improve their properties look, efficiency, and value.
Whether it’s roofing, solar, windows, air conditioning, or just update your building, we have the right crews and team to help you check off your dream project off your list.

Our expertise in the home improvement industry allow our team to deliver a more complete approach. Our in-home group of seasoned professionals enable us to manage more significant projects in a way that our customers can receive superior final products.


Get a Quote

30 Minutes Response Time


At Grandmark Energy, we’ve worked for 24 years in the service of our esteemed clientele in Central California. Over the period of time, we’ve established ourselves as the preferred Home Improvement Contractor for our region. We’ve gratefully provided service to over 20,000 clients, a number that continues to grow on a daily basis. Throughout our time in business, we’ve established a clear track record of success, thanks to our dedication, hard work, and exceptional customer service. 



Take a peek inside the wonderful world, we’ve established as the preferred Energy Upgrade Home Improvement Contractors.

Metal Roofs

Metal Roof

lasting Beauty

Shingle Roof Installation

Composition Roof

Attention to detail

Custom Roofing

Synthetic Roof & Remodel

Modern Update

Solar Panel For Home

Roof & Solar

Correct installs every time

The next time you need service in our area of expertise, don’t hesitate to give us a call at (559) 492-3333 We offer unbeatable craftsmanship, a dedication to higher standards and attentive, communicative customer service. Whether you have a need for solar panels, windows, air conditioning or any work from the leading roofing contractors in Central and Northern California, turn to the right team of Grandmark Energy.

Profesional Roofers & More

The team at Grandmark Energy represents more than just a collection of roofing contractors. Across every project we do, you can expect an emphasis on heightened energy efficiency. As HERO-registered roofing contractors, we additionally can make energy efficiency upgrades more affordable for any homeowner. We’ve pursued this focus for two simple reasons: we believe in its value for a healthier planet; and we want to save our customers money. As you explore our website and learn more about the various services we offer, keep in mind that we perform all of them with the expertise and experience acquired over 24 years in business. The next time you need help with your roofing, or any of our service specialties, turn to the team whose work will pay dividends in the form of lower energy bills.

Roofing Contractors & Gutter Systems

Our expert team of professional roofers can provide service for both residential and commercial roofs. Thoroughness and quality imbue every service we provide, so that we never disappoint our clients. We also have established relationships with a large collection of lenders, and aim to make financing easy. Other qualities that make us different from our competition include the following:

  • Consistently High-Quality Workmanship
  • Flawless Damage Repair
  • Completed Solutions on the First Service Attempt
  • Unbeatable Customer Service
  • A Genuine Passion for Our Work

Residential Roofers: As residential roofers, we offer work for repair, installation, and replacement. We specialize in the service of concrete tiles and asphalt shingles, as we recognize these materials for the incredible value they provide. We’re also experts with the service of residential flat roofing, and can construct efficient systems not prone to leaks as typical with flat roofing. Regardless of the size of your home or type of roofing need, you can always count on our consistent professionalism and stellar work ethic. If you need a new roof but fear you cannot afford the expense, don’t worry: we have relationships with a large network of lenders, and can furthermore arrange financing through consumer-friendly city and county programs.

Commercial Roofers: Commercial roofs present a complex set of needs. They also represent a significant investment into your business, and must protect your commercial structures, inventory, equipment, and employees. For all of these reasons, you should never entrust your roofing investment to an inexperienced crew. Our team has the highly specialized knowledge and project coordination abilities you want in a commercial roofer. Over the course of our time in this industry, we’ve roofed everything from prisons to shopping centers, and can perform exceptional service on your structure. Whether you want metal roofing, a single-ply membrane, torch-down materials, tile, or the application of a roof coating, we’re the team to trust.

Gutter Systems: Many homeowners fail to realize the importance of their gutters. An indispensable component of a roof system, gutters protect the roofing and foundation of a home or business from damage from rainfall. If water fails to drain properly from a roof, it will contribute to leak formation. It will also damage your fascia and walls from run-off. As it collection around your foundation, you can furthermore expect slab leaks and other problems. From an energy efficiency perspective, the damage caused through poor drainage can penetrate a structure’s thermal envelope, leading to the lost energy that raises your monthly bills.

Solar Panels

We’re the Leading California Provider of Quality Solar Panel Systems.

The team at Grandmark Energy has the most comprehensive solar energy program available in California. We care a great deal about energy efficiency, and will find a way to bring this technology to your home or business. If you worry about the size of investment required for a solar panel system, consider this: you can easily cut the price in half with federal, state, and local rebates and incentives. After you have the system installed, the monthly savings generated through reduced or eliminated energy bills will allow your solar panels to pay for themselves in no time. As for size and scope, our scalable methodologies allow us to design systems for any size home or business. As installers and maintenance experts, a number of additional factors set us apart from the competition.

  • Extensive Experience: More than 20 Years in the Industry
  • The Design of Ideally Sized Systems
  • Low Interest, 100% Financing
  • In-House Electrical Installation Teams
  • Peace of Mind Guarantee

Local Home Improvement Contractor Invested In Our Community

Over the course of our 24 years, we have provided service for a great number of our neighbors. As a matter of fact, we now stand as the leading roofing contractors for Central California. There exist many reasons to choose local roofers, including familiarity with the local climate, building code regulations, and reputations verifiable through local reviews. Across each of our locations, you can count on service that meets the highest of standards.

Call Us Today to Learn More

The next time you need service across any of our areas of expertise, don’t hesitate to give us a call. We offer unbeatable craftsmanship, a dedication to the highest of standards, and attentive, communicative customer service. Whether you have a need for solar panels, window replacement, gutter repair, AC service, or work from the leading roofing contractors in Central California, turn to the team at Grandmark Energy.

Get Your Project Financed As Low As .9 % Today!

Working with integrity pays off. 

Request a Call

Contact Us For Your Free Consultation