Home ยป About Us Read Our Testimonials 6 Tilco Drive Frederick, Maryland 21704 See all reviews SPECIAL OFFERFree In-Home EstimateLimited TimeEstimate provided for new system installs and/or water heaters only. Coupon must be presented at time of service. Not valid with any other offers. Restrictions may apply. Call Eric Smock Heating & Air Conditioning, Inc. for complete details.1539 Tilco Dr, Suite 104, Frederick, MD 21704 (301) 945-7220 Click to Open in Print View We Accept Recent Posts 4 HVAC Upgrades That Make Your Home More Valuable Will Snow and Ice Damage Your Heat Pump in Frederick, MD? Gaithersburg, MD IAQ: Common Indoor Air Pollutants Tips for Choosing a Furnace Repair Company in Germantown, MD What Are the Benefits of Investing in a Heat Pump? Search for: REQUEST AN APPOINTMENT