Heating & Cooling Systems
Why It Matters
A truly comfortable home is more than just heating and cooling. Proper insulation keeps your home energy-efficient, clean ducts ensure the air your family breathes is healthier, and tankless water heaters provide reliable hot water whenever you need it. At Leonard Splaine, we bring these solutions together with decades of trusted service.
Insulation Benefits
Keep the heat in during the winter and the cool air in during the summer with professional insulation services.
Learn More About Insulation Services
Why Choose Tankless Water Heaters?
Say goodbye to cold showers and bulky water tanks. Our tankless water heaters provide endless, on-demand hot water while using less energy.
Request Tankless Water Heater Quote
Benefits of Duct & Vent Cleaning
Over time, your ducts and dryer vents collect dust, allergens, and debris. Without cleaning, this buildup can impact your family’s health and even create fire hazards.
Schedule Duct Cleaning Service
Service Areas
Leonard Splaine has provided heating, cooling, and generator services to families across Northern Virginia for more than 65 years. Whether you’re in the suburbs, the city, or the countryside, our team is ready to keep your home safe and comfortable.
Not sure if we service your area?
Call Us Today
(571) 989-1825
Why Choose Us
For over 65 years, Northern Virginia homeowners have trusted Leonard Splaine for their heating and cooling needs.
Serving Northern Virginia homes since 1956.
Fully insured and experienced across Generac and all major brands.
Affordable payment plans and rebate assistance to fit any budget.
Fast, code-compliant work with minimal disruption to your home.
Backed by our 100% commitment to quality and customer care.
Testimonials
Since 1956 • Family-Owned • Licensed & Insured
BBB Accredited
Verified Customer Reviews
Licensed & Insured
Every 3–5 years, or sooner if you notice dust buildup, allergies, or reduced airflow.
Yes—especially for larger households. They provide endless hot water, save space, and cut energy costs.
High energy bills, uneven room temperatures, or drafts are common indicators.
Get Started Today
Call us today or schedule online to book insulation, tankless water heater, or duct cleaning services with Leonard Splaine.
