The Only Contractor You Need For A Safe & Efficient Home or Business.
25+ Years of Experience
At Grandmark we’ve established ourselves as the local contractors of choice for the areas around our five locations. We’ve constantly sought to bring the benefits of our service to as wide a clientele as possible.
We Offer Superior Services
Our solar technicians have roofers on site, and our air conditioning technicians have a trade electrician on site, no more scheduling problems, and voided warranties. Grandmark team will handle it all for you.
20,000+ Satisfied Customers
We have provided excellent services to thousands of customers, and we’d love for you to be able to experience the quality of our technicians!
Grandmark was founded by 2 brothers who are experts in the Home Improvement Industry. They were part of roofing big public buildings like Children’s Hospital and Selland Arena among others.
The desire to provide ethical professional home improvement guidance and execution, made Grandmark Energy a Brand name in the home improvement business.
Grandmark is proud of all its members who perform the hard work. When you need a new roof, a solar system, a new air conditioner or a simple home upgrade, Grandmark unwavering commitment to quality, affordability & efficiency will always be the values you, the customer, can expect from the Grandmark Team!
There are real long term benefits to doing the job right the first time! It is been proven over and over again!
Grandmark has a proven track record of delivering results consistently over the past 24 years!
Have questions? Let us know and one of our friendly representatives will get back to you shortly.
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Financing Available - No Credit Required Programs!