Ductless Mini-Split Systems
Ductless mini-split installation and service across D.C. and Maryland — efficient cooling and heating for homes without ductwork, additions and problem rooms.
Some homes — and some rooms — just can’t be comfortable on central air alone. A ductless mini-split cools (and heats) without any ductwork at all, making it a perfect fit for older D.C. and Maryland homes, additions, and that one room that’s always too hot. All-Pro Services sizes, installs and services every make and model.
A mini-split pairs a small outdoor unit with one or more slim indoor “heads” mounted on the wall or ceiling, connected by a thin refrigerant line through a small hole in the wall — no ducts required. Because each head is controlled independently, you cool the rooms you’re using instead of the whole house. Our NATE-certified team installs them clean and sizes them right.
When a ductless mini-split is the right call
- Homes with no ductwork — many older row houses and homes that have only ever had radiators or window units can finally get real, quiet cooling without tearing open walls for ducts.
- Additions and converted spaces — sunrooms, attics, garages, in-law suites and bonus rooms the central system was never designed to reach.
- That one problem room — a space that’s always too hot or too cold, often on the top floor or over a garage.
- Room-by-room control — a multi-zone system lets each area set its own temperature, so you’re not paying to condition empty rooms.
Heating, too — all year from one system
Most mini-splits are heat pumps, so the same system that cools you in summer also heats efficiently in the shoulder seasons and into winter. If you’re weighing whole-home options, it’s worth reading about heat pumps as well — a mini-split is essentially a ductless heat pump, and we’ll help you decide which approach fits your home.
Efficient and quiet
Modern ductless systems are highly efficient — rated by SEER2 for cooling, with inverter-driven compressors that ramp up and down instead of hard cycling, so they hold a steady temperature and sip energy doing it. Without ducts, there’s also no loss from leaky duct runs (which can quietly waste a large share of a traditional system’s output). The indoor heads run quietly enough for bedrooms and offices.
Mini-split or central air?
If your home already has good ductwork, a central A/C system is often the most straightforward choice. Where ducts don’t exist, would be costly to add, or can’t reach a space, a ductless mini-split usually wins. Many homes do best with a mix — central air for the main living space and a mini-split for the addition or top floor. We’ll assess your home and give you a straight recommendation, with a free estimate either way.
Ductless mini-split FAQs
What is a ductless mini-split?
It’s an air conditioning (and heating) system that doesn’t use ductwork. A small outdoor unit connects to one or more wall- or ceiling-mounted indoor heads through a thin refrigerant line, conditioning each space directly.
Do ductless mini-splits heat as well as cool?
Most do — they’re heat pumps, so one system both cools in summer and heats efficiently in cooler weather. We’ll help you weigh a mini-split against a conventional heat pump or furnace for your home.
Are they a good option for an older home without ductwork?
Often the best option. Adding ducts to an older home can be invasive and expensive; a mini-split delivers quiet, efficient comfort with only a small line set through the wall — no major construction.
How many rooms can one system cover?
A single outdoor unit can run multiple indoor heads (a “multi-zone” system), each with its own control. We size the system to the rooms you want covered and how you use them.
Are ductless systems efficient?
Yes — high SEER2 ratings, inverter compressors that avoid wasteful hard cycling, and no losses from leaky ducts all add up to efficient operation and steady comfort.
Think a ductless system might fit your home? Request a free estimate or call our local team. See our full air conditioning services or the areas we serve.
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