

Mary Calderwood, a resident of Fairfax Station, faced a serious situation when her aging, malfunctioning, and energy-inefficient HVAC system began to fail. The existing equipment was causing a significant spike in electricity bills, leading to decreased comfort within her home. This created considerable stress, replacing the peace of mind that comes with a reliable heating and cooling system. The need for a new system with a fresh warranty and lower maintenance requirements became paramount, especially when her heat unexpectedly went out during the coldest weeks of January 2025.
Having relied on C.D. Shanahan’s Heating & Cooling for HVAC system repairs and maintenance for several years, Mary didn’t hesitate to call them for this emergency. Recognizing the immediate need for a complete system replacement, the team at C.D. Shanahan’s provided a comprehensive solution. They removed the old water heater, verified the need for a new shutoff valve, performed an emergency drain flush, and expertly installed a new power-vented heater. Gas and water lines were reconnected, and an expansion tank and drain pan were added to ensure compliance with local codes. The project was completed in just four hours, with minimal disruption to Mary’s home.
The installation of the high-efficiency, power-vented unit brought immediate relief and long-term benefits. Mary now enjoys enhanced safety and reliability, along with the comfort of a new water heater system. The project included a 6-year manufacturer warranty on the heater and a 1-year labor warranty, providing long-term peace of mind. All work was completed in full compliance with Fairfax Station codes, and the old equipment was disposed of responsibly.
“We had been using CD Shanahan’s for our HVAC system repairs and maintenance for a couple years. Then in January 2025, during the coldest weeks ever, our heat went out. We didn’t hesitate to call CD Shanahan’s to come to our rescue. When we were told we needed a whole new system, though it was a punch to the budget, we knew that we could trust what we were being told. We worked with Connor Shanahan, the owner and with his techs. They were easy to get on the phone and prompt in responding. We were offered a few different options at differing costs and felt comfortable with their recommendations. They did such a great job explaining everything, so we completely understood all the options. When we decided which unit to purchase, they were there the next day to install it. We are so grateful to them for being honest, prompt and so easy to work with. Our family highly recommends CD Shanahan’s without hesitation!”
Experience the same level of trusted service and comfort. Contact C.D. Shanahan’s Heating & Cooling today for a free estimate on your HVAC needs.
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