Committed to Our Customers Comfort

Our mission is to keep a small family business atmosphere while providing our customers with the comfort and dependability they expect.

We guarantee 100% satisfaction or your money back! Now that's a company you can rely on for your heating and air conditioning needs.

Heating | Air Conditioning | Fuel Oil

When it comes to heating and cooling, we are your most trusted resource. Leonard-Splaine Heating, Air Conditioning, and Fuel Oil is a full service residential and commercial HVAC contractor serving the greater Northern Virginia Area for over 50 years. We specialize in the installation, service, and repair of heat pumps, air conditioners, gas furnaces, electric furnaces, instant water heaters, gas water heaters, electric water heaters, air filtration systems, duct work, humidifiers, and much more. We also sell and deliver heating fuel oil and off road diesel.

We offer great prices on heating and air conditioning equipment in Fairfax, Virginia including service and repair on all brands of heating and air conditioning equipment with professional installation and repairs done by certified HVAC contractors. Prompt HVAC service and we service and repair all brands of heating and air conditioning equipment. HVAC product service and maintenance contracts on heating oil and all our product lines are available, call us today. We offer the most reliable heating oil delivery service and maintenance in the Fairfax, Virginia area

What makes us different? Our products, our service, and our team. We hire only accredited service technicians who operate in fully equipped vehicles. Our experienced technicians understand the complexities of new, state-of-the-art residential and commercial heating and air conditioning systems. We are ready to explain the many systems on the market and how they will save you heating and cooling money. Please ask any questions you have about the industry — we love to help!

Serving you for over 50 years