DIY Comfort Depot is the NEW way to shop for Heating & Cooling replacement and repairs. Located in Gaithersburg Maryland we proudly serve Maryland, Washington DC and Northern Virginia. We are the first Heating and Cooling company to provide True Upfront Pricing for Carrier, Trane, Rheem and Goodman heating and cooling products with our eCommerce store. Our signature software provides an instant heating and cooling estimate from multiple brands right from your couch! Flexible payment options include PayPal, Apple Pay, Google Pay and 0% financing.