Heating & Cooling Systems
Northern Virginia Heating & Cooling Experts Since 1956
Fast, reliable HVAC repair & installation to keep your home comfortable year-round.
4.9/5 Google
BBB Accredited
Licensed & Insured
Lennox Premier
Request Service Now — It Only Takes 7 Seconds!
Common Issues
Comfort Problems We Fix—Fast
AC out in a heat wave? Furnace acting up? Uneven rooms? We diagnose and fix it on the first visit in most cases.
AC Not Cooling
Same-day diagnostics & repair
Hot/Cold Spots & High Bills
System right-sizing, duct checks, tune-ups
No Heat / Furnace Issues
Emergency repair & safe operation
Dust/Allergies
IAQ filters, UV, humidity control
schedule Same-Day Service
Our Services
Complete Heating & Cooling for Your Home
We service all Major brands. Honest options. No pressure.
System Guide
Picking the Right System—Made Simple
What is HaVAC?
Heating warms, AC cools, ventilation circulates/freshens air for comfort & health.
Local & Family-Owned
Serving Northern Virginia homes since 1956.
Efficiency, decoded:
AFUE (furnaces)
Heating warms, AC cools, ventilation circulates/freshens air for comfort & health.
SEER / EER (AC & heat pumps)
Cooling efficiency seasonal/peak. Higher = lower electric use.
HSPF (heat pumps)
seasonal heating efficiency. Higher = lower electric use.
“Higher-efficiency ≠ always lowest bill—fuel costs matter. We help you pick what actually saves you in NOVA.”
— 01
Heat Pumps—Efficient Heating & Cooling in One
- Works year-round by moving heat in/out of your home.
- Great fit for NOVA’s moderate winters; cold-climate models handle lower temps
- Pros: one system, energy-efficient, dehumidifies in summer.
- Supplemental heat in extreme cold; correct sizing is crucial.
See If a Heat Pump Fits Your Home
— 02
Ductless Systems—Zoned Comfort, No Ducts Needed
- Ideal for additions, bonus rooms, older homes, downsizing zones.
- Pros: up to ~30% energy savings, room-by-room control, quick install (small wall penetrations), strong filtration.
- Consider: higher upfront vs. window units; monthly filter wash to maintain efficiency.
Design Your Ductless Zones
— 03
Gas & Oil Furnaces—Reliable Winter Heat
- Modern AFUE: mid-eff (78–83%) to condensing (90–97%) for lower gas use.
- Gas most common; oil supported.
- We assess ductwork, venting, and safety, then present options + rebates/financing.
Compare Furnace Options & Savings
— 04
Central Systems Done Right
- Proper sizing, sealed ducts, and smart controls prevent hot/cold spots & bill creep.
- Smart thermostats add comfort schedules and energy reports.
Upgrade to a Smart, Efficient System
Maintenance Plans
Prevent Breakdowns—Extend Equipment Life
- Proper sizing, sealed ducts, and smart controls prevent hot/cold spots & bill creep.
- Smart thermostats add comfort schedules and energy reports.
Join the Comfort Plan
Flexible Payments
Honest Pricing, Rebates & Flexible Payments
- Transparent options with good/better/best recommendations.
- We handle manufacturer promos, utility rebates, and federal credits (e.g., qualified heat pumps).
- Low-payment financing available with approved credit
See Current Deals & Financing
Testimonials
Trusted by Northern Virginia Homeowners
Since 1956 • Family-Owned • Licensed & Insured
BBB Accredited
Licensed & Insured
Lennox Premier
Service Areas
Proudly Serving Northern Virginia Homeowners Since 1956
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
How do I choose between a heat pump, furnace, or ductless?
We compare upfront cost, utility rates, comfort needs, and your home’s insulation/ducts to recommend what actually saves you over time.
What efficiency ratings matter in NOVA?
AFUE for furnaces; SEER/EER/HSPF for AC/heat pumps. Higher is better but fuel price & usage patterns decide real savings.
How often should I service my system?
Twice yearly (spring/fall). Plans include priority service and discounts.
Can you repair my system same day?
We offer fast response and keep common parts stocked to fix most issues on the first visit.
Do you install smart thermostats?
Yes plus we’ll set up schedules that fit your routine.
Get Started Today
Ready for Reliable Home Comfort?
- 100% Satisfaction Guarantee
- No-pressure recommendations
- Upfront pricing.