Looking for an HVAC company in Del Ray? Del Ray's bungalows were built for porch sitting, not central air, and half of them still heat with radiators. We add modern comfort to these streetcar-suburb homes without sanding off their charm.
Why us?
Serving Del Ray
Del Ray grew up along the Mount Vernon Avenue streetcar line, and its housing still reads that way: craftsman bungalows, Sears kit houses, and cottage duplexes from the 1910s through the 40s, on friendly blocks where the front porch is the main room of the house all spring. Rosemont's foursquares sit on one side, and Potomac Yard's brand-new townhomes are rising on the other.
The old stock shares a mechanical story: little or no ductwork, boilers and radiators still doing the heating in a surprising share of homes, knee-wall attics that bake, and additions out back that never got conditioned properly. It's ductless country, and it's also boiler country, and we're one of the few companies left that does both well.
The Potomac Yard end is the opposite: brand-new townhomes and condos with builder-grade heat pumps that will want a proper replacement in year eight. Between the two, Del Ray keeps every skill we have in practice. Family-owned since 1956, a real person answering 24/7, one number for all of it.
Our Services
Ductless for bungalows, boiler care, attic systems, and new-townhome heat pumps along the Avenue.
Del Ray cooling is window-unit retirements, ductless heads, attic systems in knee-wall spaces, and new townhome heat pumps, each with its own failure modes. We repair all of it same-day, from Avenue bungalows to Potomac Yard's newest blocks.
A remarkable number of Del Ray homes still heat beautifully with boilers and radiators, and we service them properly, cast iron, steam, and hot water alike, banging pipes and strange noises included, along with the gas furnaces and heat pumps in renovated and new homes. Same-day no-heat response, every brand.
Air conditioning a 1920s bungalow means working with 8-foot ceilings, knee-wall attics, and plaster worth keeping: compact ducted systems, high-velocity, or ductless, sized with a real load calculation. We quote the honest options with free estimates and 0% financing options, and every install carries our written workmanship warranty.
Bungalows, porches converted to sunrooms, rear additions, finished attics: Del Ray is mini-split territory block after block. As a Mitsubishi Diamond Contractor we design systems whose heads sit quietly above the picture rail and whose condensers tuck behind the azaleas.
From Potomac Yard's builder-grade units to bungalows electrifying off oil and gas, Del Ray runs on heat pumps more every year. We repair every brand and install cold-climate inverter systems that keep radiator-warm comfort without the radiators, with room-by-room temperature control where the old floor plans need it.
Boilers need their annual safety inspection, knee-wall attic equipment cooks all summer, and hundred-year-old houses hide their condensate and humidity problems until the ceiling shows them. Annual tune-ups keep Del Ray systems honest, filtration clean, and energy costs from creeping up the utility bills, with priority scheduling and waived diagnostics for 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 Del Ray 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 Del Ray 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 Del Ray 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, Del Ray is part of City of Alexandria, 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 classics: ductless mini-splits (usually the winner), a high-velocity mini-duct system, or a compact ducted system through closets if the framing allows. We keep the radiators, add the cooling, and quote all the honest options after walking the house.
Yes. The builder-grade heat pumps in the new blocks are standard equipment for us, we maintain them, repair them, and when the time comes, replace them with something better than the builder chose.
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.
