Serving Fairfax, Prince William, Arlington, Alexandria, Stafford & Fredericksburg across Northern Virginia.
Why us?
Our Services
Get a licensed professional to come out today.
Financing
On qualifying new systems through Wells Fargo, subject to credit approval.
A system rarely quits on a convenient month. Finance the replacement, or a repair over $1,000, and keep the house comfortable while you pay it down.
Current offers
Trust comes first, but fair deals don't hurt. Every offer below is available to every customer, every day.
Special Offer
Pay for the Repair, Not the Visit
The $89 residential service call comes off your bill when you approve a repair over $250 on the same visit. Maintenance members have the service call waived on any repair they approve, with no minimum.
Special Offer
On a New Carrier System
0% APR with 60 equal monthly payments on qualifying new Carrier systems, financed through Wells Fargo and subject to credit approval. Sale period August 1 – November 20, 2026. Mention this offer when you book and we'll run the numbers on your replacement.
Expires: 11/20/2026
Special Offer
On a New Lennox System
Rebate up to $1,300, paid as a Lennox Prepaid Mastercard®, on a qualifying Lennox home comfort system, or combine a rebate up to $1,100 with 0% financing for 60 months. Buy July 6 – August 14, 2026; install by August 21. Qualifying system required; see us for details.
Expires: 08/14/2026
Special Offer
With a New Home Standby Generator
Generac is covering a free 10-year extended warranty, a $1,035 value, on qualifying air-cooled 10 kW to 28 kW home standby generators bought August 17 – September 27, 2026. Installation and online redemption must be submitted by January 1, 2027. Qualifying models only; ask us for the list.
Expires: 09/27/2026
Special Offer
Plus 3% Off When You Pay by Cash or Check
Valid ID required. Applies to service visits. Cannot be combined with other discounts or offers. Ask about our 3% discount when paying by cash or check.
Expires: 12/31/2026
Who we are
A third-generation, family-owned company serving Northern Virginia since 1956.
A lot of the big HVAC names around here have quietly sold to private-equity groups. We haven't, and we won't. When you call, you reach real people, and the same family that started this company 70 years ago still signs off on the work, from heating and cooling to water heaters, electrical, and even home heating-oil delivery.
Why us
Already know what you need?
Our Team
Every visit is handled by real, named people who treat your home like their own. We're family-owned, 70 years in, and three generations of the same family crew. When you call Leonard Splaine, you reach these folks. Learn more about us.
Ted Leonard 3rd-Generation Owner 
Gary Leonard 2nd-Generation Owner 
Johnny Baker General Manager 
Erin Simmons Office Manager 
Brian Boyce Service Manager 
Brad Hoskins Field Supervisor 
Ira Sacknowitz Install Manager 
Ricky Seminario Comfort Advisor Reviews
Real homeowner reviews from real Leonard Splaine jobs across Northern Virginia, from same-day AC repairs to full system installs. We've earned our 4.9-star average the slow way: answering the phone, showing up on time, and doing right by every home.
Lynn Gilbertson Google review Kyle provided emergency holiday weekend service when our a/c was completely out with 104F "feels like" temperatures. He quickly diagnosed and fixed our system, with solutions for avoiding similar problems in the future. We are grateful to Kyle and Leonard Splaine!
Katie Kada Facebook recommendation Couldn't have asked for better service! Leonard Splaine was timely, honest and did a wonderful job replacing our very outdated AC unit. We plan to use them again for any service or replacement in the future and we'll recommend them to our friends and family.
I will definitely use this company again! Our AC went out on one of the hottest days of the year. They answered and came to the rescue! Family owned and very kind. Technician was knowledgeable and quick.
Ankur Mundra Facebook recommendation I've used Leonard Splaine the last 5 years. They are professional, provide quality service, and answer my questions and concerns. Michael Ford came out this year to do my spring maintenance as well as eztrap installation and condenser coil cleaning. He did an excellent job.
Candace Bond Google review They were such gentlemen and seemed to be very knowledgeable and honest. They were also very patient and took the time to answer all of our questions. I would highly recommend these guys.
A/C stopped working on the hottest day of the year, so far. They came over the same day and had it up and running in no time. The price was reasonable and the tech was great.
Where we work
Headquartered on Occoquan Road in Woodbridge. Our techs live in the neighborhoods they serve.
Don't see your town? If you're in Northern Virginia, call us. Odds are we've got a truck nearby.
Book now
Same-day appointments available. We'll call you right back.
Good questions
The things homeowners ask us most. Anything else, the phone's faster than the internet.
In most cases, yes. We run a large fleet out of Woodbridge and hold room in the schedule for same-day repair calls across Northern Virginia. Call before noon and we can almost always be there the same day. Earlier in the day is better during peak season.
For residential HVAC, our diagnostic fee is $89. It covers a real diagnosis and a straight, written price before any work starts. Approve a repair over $250 on the same visit and the $89 comes off your bill, whether or not you are a member. Maintenance members have the fee waived on any repair they approve, with no minimum. Replacement estimates for HVAC systems, water heaters, electrical panels, and EV chargers are always free.
Yes. We work with multiple financing partners and pass along manufacturer promotions as they run, including 0% and low-monthly-payment options on new systems. Tell us your budget and we'll build options around it.
All of them. Our technicians repair every major brand of furnace, heat pump, AC, boiler, and water heater. For new installations we're a Lennox Premier Dealer and a Mitsubishi Diamond Contractor, including ductless mini-splits, and we also specialize in Carrier.
We do. We're one of the last companies in Northern Virginia that both services oil heating systems and delivers home heating oil and off-road diesel. If you have an oil furnace or boiler, you only need one phone number.
Yes. Alongside heating and cooling we install air filtration, whole-home humidifiers, UV purification, and air purifiers, a big help during Northern Virginia's pollen seasons and dry winters. Ask about it during any air conditioner or furnace visit, or book an air quality assessment on its own.
Yes, and it matters. Leonard Splaine has been owned and run by the same family for three generations, since 1956. We haven't been bought by private equity, and we're not going to be. When you call us, you're dealing with people whose name is on the trucks.
Same-day service across Northern Virginia. Talk to a real person, day or night.
