Looking for an HVAC company in Vienna? Vienna's original ramblers and the big new builds replacing them share streets but nothing mechanical. We service both generations, from W&OD-adjacent originals to 6,000-square-foot customs, with the same straight pricing.
Why us?
Serving Vienna
The Town of Vienna is mid-transformation: 1950s and 60s ramblers and split-levels in Vienna Woods and Westwood are giving way, lot by lot, to large custom builds, while thousands of originals soldier on with owners who love them. That gives Vienna two distinct HVAC populations, aging retrofit systems in the originals, and complex multi-zone equipment in the new customs, often next door to each other.
In the originals we do classic old-house work: honest repair-or-replace calls on decades-old equipment, duct corrections, ductless for additions and sunrooms, and panel upgrades before an EV charger can even be discussed. In the new builds we balance builder zoning, commission the humidifiers and ERVs that never got set up, and keep warranty maintenance documented from year one.
Vienna has watched plenty of contractors come and go since its ramblers were new. We've been here the whole time, founded in 1956 and still run by the family that started it, giving the originals honest repair-or-replace advice and the new customs a free written estimate before anyone commits to anything.
Our Services
AC repair, heating, heat pumps, and ductless for Vienna Woods, Westwood, and the Town core.
Vienna AC failures split by generation: original-era systems in Vienna Woods dying of honest old age, and new-build equipment tripping on commissioning shortcuts and unbalanced zones. We run same-day repairs across the Town, diagnose per-house, and quote flat-rate before touching anything.
We repair the gas furnaces and heat pumps in Vienna's originals and the multi-stage systems in its new customs, same-day either way. The 60-year-old homes still running early furnaces get honest end-of-life advice, not a scare pitch, and the occasional boiler or oil system is right in our wheelhouse.
In an original Vienna rambler, a replacement is the moment to fix the duct compromises of the past 60 years; in a new custom it's about matching the zoned design. Real load calculations either way, and as a Lennox Premier Dealer we hand you a written estimate at no charge before you decide anything.
Vienna's sunroom additions, finished attics, garage studios, and W&OD-facing porches-turned-offices are ductless naturals. As a Mitsubishi Diamond Contractor we install quiet single- and multi-zone systems in the originals and specialty zones in the customs alike.
Heat pumps are the default replacement conversation in Vienna now, high-efficiency inverter systems that cut bills in the originals and integrate with zoning in the customs. We repair every brand and design dual-fuel setups for owners keeping gas backup.
Vienna's mature trees coat condensers in pollen and leaf litter, and its new builds carry warranties that demand documented service. Our tune-ups cover both, cleaned coils, checked refrigerant and electrical, kept records, with priority scheduling for maintenance plan members.
Brands
We repair every major brand and install new systems from the best of them. We're a Lennox Premier Dealer and a Mitsubishi Electric Diamond Contractor.
Current offers
Trust comes first, but fair deals don't hurt. Every offer below is available to every Vienna customer, every day.
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
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
Why us
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Reviews
Real reviews from real Leonard Splaine jobs across Vienna and 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.
Our Team
Every Vienna 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 Where we work
Headquartered on Occoquan Road in Woodbridge, Vienna is part of Fairfax County, and our techs cover the surrounding towns every day.
Don't see your town? If you're in Northern Virginia, call us. Odds are we've got a truck nearby.
Good questions
The things homeowners ask us most. Anything else, the phone's faster than the internet.
The panel, the ductwork, and the system's true age, in that order. A tune-up with our honest assessment tells you what has life left and what to budget for, before you commit to renovation plans that assume the HVAC can carry more space.
We service plenty of them after handover, balancing zones, commissioning humidifiers and ventilation, and taking over the documented maintenance the warranty requires. If the builder left comfort problems, we find and fix them.
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. Maintenance members have the diagnostic fee waived when they proceed with the repair. Ask us about the membership. 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.
