Looking for an HVAC company in Arlington? Arlington's brick colonials and bungalows were built for radiators and window fans, not central air, and making them comfortable takes a company that respects old construction. We've done exactly that for decades.
Why us?
Serving Arlington
Arlington packs a century of housing into 26 square miles: 1930s and 40s brick colonials in Lyon Village and Cherrydale, post-war bungalows and Cape Cods in Westover and Barcroft, and condo and townhome stock along the Rosslyn-Ballston corridor. A huge share of the older homes were built with radiators or gravity heat and no ductwork at all, which is why Arlington is one of the strongest ductless markets in Northern Virginia.
Working here means respecting the construction: plaster walls you don't butcher, slate roofs you don't drill casually, tight side yards where a condenser has to fit and stay quiet for the neighbors three feet away. It also means knowing the retrofits, the attic systems squeezed into 1940s framing, the high-velocity ducts, the boilers still running beautifully after fifty years because someone maintained them.
Arlington has been on our routes long enough that we've served three generations of some of these homes' owners, fitting for a company on its own third generation of family ownership. From boiler service to ductless retrofits, you get upfront pricing and the same-day response the rest of our map gets.
Our Services
Boilers, ductless retrofits, AC repair, and heat pumps for Cherrydale, Westover, and the corridor.
Arlington cooling is a mix of retrofitted central air, attic systems, and ductless heads, and each fails its own way: attic air handlers overheating in August, condensate backing up over bedroom ceilings, tight-lot condensers running hot in brick-radiated heat. We repair all of it same-day, from Cherrydale bungalows to Ballston-corridor townhomes.
Plenty of Arlington homes still heat with the boilers and radiators they were built with, and we're one of the last companies that services them properly, alongside the gas furnaces and heat pumps in the renovated stock. No heat in a 1938 colonial is a different job than in a 2005 townhome, and we fix both the same day.
Putting real cooling into an Arlington colonial is design work: compact ducted systems threaded through closets, high-velocity systems where framing is tight, or ductless where the plaster should stay untouched. We quote the options honestly, size with a real load calculation, and back it with free estimates and 0% financing options.
Arlington might be the best mini-split territory in Northern Virginia: radiator-heated homes with no ducts, finished attics and basements, sunrooms, and condo dens. As a Mitsubishi Diamond Contractor we place quiet, low-profile heads that cool and heat without touching 90-year-old plaster, with outdoor units sited for tight lots and close neighbors.
Arlington's electrification push has made heat pumps the hot ticket, replacing aging AC-plus-furnace pairs and even supplementing boilers. We repair every brand and install cold-climate inverter systems that hold their output on January nights, ducted, ductless, or hybrid, depending on what your house allows.
Arlington systems work hard in tight quarters: attic equipment bakes, tiny side-yard condensers choke on hedge clippings and street dust, and boilers need annual attention to stay safe. Our tune-ups cover all of it, and maintenance plan members get priority scheduling and 15% off repairs.
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 Arlington customer, every day.
Special Offer
Priced After the Year We Started
A one-time heating-system inspection with a straight report on what we find and a written price on anything that needs work. We set the price at $56 because 1956 is the year our family started this company. Covers one residential system. Mention this offer when you book.
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
Or 0% Financing for 60 Months
Rebate paid as a Lennox Prepaid Mastercard® on a qualifying Ultimate Comfort System™ with a qualifying thermostat. Or combine up to $1,400 with the same 60-month financing. Buy by December 4, install by December 11, 2026. Financing subject to credit approval.
Expires: 12/04/2026
Special Offer
Not valid on tankless or heat pump water heaters. Exclusions apply. Mention this offer when you book.
Special Offer
Not valid on tankless or heat pump water heaters. Exclusions apply. Mention this offer when you book.
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 Arlington 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 Arlington 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, Arlington is part of Arlington 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.
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.
Yes, that's a specialty. Depending on the framing, the answer is a compact ducted system through closets, a high-velocity system, or ductless mini-splits, and often a combination. We walk the house and quote the real options.
No, and we usually recommend keeping them. Radiant heat is excellent; we add ductless or compact-duct cooling alongside it, and keep servicing the boiler so you get the best of both.
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.
