Our Services

When winter hits, don’t let your furnace leave you out in the cold. The experts at Grannemann’s can keep your system in shape so you can stay cozy and comfortable in your home all season long. Whether it’s time for annual maintenance to prepare your system for colder temperatures or you’re in need of an emergency repair, we’re ready to help. We’re also happy to help you weigh the benefits of a new system. At Grannemann’s, we can help you find and install a home comfort system that works for your home.

When temperatures rise, you want your air conditioning working efficiently to keep you cool. Grannemann’s Sales and Service can make sure your system is giving your home peak performance. Whether you want to look for a new, energy-efficient system or just want a regular tune-up, we have your home covered. Stuck in the heat with a broken-down system? We can help. Call us for an emergency AC repair!

At Grannemann’s Sales and Service we’re passionate about making your home more relaxing. Modern houses are securely closed, which is great for energy efficiency. But it also means your home could have poor air quality. There are several actions you can take to enhance your air quality to make your home more comfortable. Some include upgraded air filters, an air purification system or an ultraviolet (UV) germicidal light. If you want to improve your home’s air quality, we’re ready to help

Geothermal systems are extremely efficient, environmentally friendly, last longer than traditional HVAC systems and usually qualify for financial incentives either from a local or federal standpoint. Grannemann’s offers geothermal systems that can reduce monthly heating and cooling bills up to 70% over traditional HVAC systems. With geothermal, you do not have to worry about the unpredictable swings associated with fossil fuel costs. Heating, cooling and getting some (or all) of your hot water from a geothermal heat pump costs less than a traditional HVAC system. If you chose to finance your geothermal system, it can be paid off with the money you’ll save on utility costs. Call Grannemann’s Sales and Service today and see how you can benefit from a geothermal heating and cooling system.

Electrical projects can be complicated. Luckily, the experts at Grannemann’s Sales and Service are here to help. Whether you need a small repair or are starting a large rewiring project, trust in us to make sure it’s done safely and efficiently. Our electricians are well trained and will make sure your home is up to code—no matter the size of your project. Give us a call to find out how we can be of service during your next home improvement mission.