Mini Splits & Ductless AC Systems in Southern Maryland

Looking for a heating and cooling solution that doesn't involve tearing into walls or running expensive ductwork? Mini splits are the game changer homeowners and business owners across Calvert, Charles, St. Mary's, Anne Arundel, and Southern Prince George's County have been waiting for. Whether you're finishing a sunroom, converting a garage, or trying to keep peace in the house over the thermostat, a ductless mini split system gives you precise, room-by-room comfort control without the cost and mess of extending your existing HVAC system.

What Is a Mini Split System?

A mini split (or ductless system) is a compact, highly efficient heating and cooling solution made up of just a few simple components:

• Indoor Unit(s) — mounted on the ceiling or wall of the room you're conditioning
• Outdoor Condenser Unit — sits outside, similar to a traditional AC unit but smaller and quieter
• Refrigerant Line Set — a slim conduit connecting the indoor and outdoor units, requiring only a small hole through an exterior wall
• Remote or Wall-Mounted Control — lets you adjust temperature and settings for that specific zone

No ductwork. No major construction. Just efficient, targeted comfort exactly where you need it.

Where Mini Splits Are the Perfect Fit

If you can think it, a mini split can almost always do it. We install ductless systems in spaces like:

• Sunrooms
• Home Gyms
• Cottages
• Garages
• Man Caves & She Sheds
• Historic Homes
• Pool Houses
• Additions
• In-Law Suites
• Above-Garage Apartments
• Detached Buildings
• Offices
• Computer Rooms & Server Closets

Historic homes are a especially great match — mini splits let you add modern climate control without the invasive construction that traditional ductwork requires, preserving original walls, ceilings, and character.

Single-Zone vs. Multi-Zone: Which One Do You Need?

Mini split systems are built to scale to your space:

Single-Zone Systems use one indoor unit paired with one outdoor unit — ideal if you only need to condition a single room or area, like a home office or garage.

Multi-Zone Systems connect multiple indoor units to a single outdoor condenser, so you can heat and cool several rooms independently. This is perfect for households where comfort preferences don't match — one family member likes it mild, another wants a meat-locker effect. With multi-zone mini splits, each room is set to its own temperature, so everyone gets exactly what they want.

Why Homeowners Are Choosing Mini Splits

• Lower Upfront Cost — often less expensive than extending traditional ductwork into a new or existing space
• Higher Efficiency — mini splits can achieve higher SEER ratings than many traditional systems
• Lower Energy Bills — by conditioning only the zones you're using, you avoid paying to heat or cool empty rooms
• Individualized Comfort — every room can have its own temperature setting
• Fast, Minimally Invasive Installation — no ductwork means less disruption to your walls, ceilings, and daily life

Let's Talk About Your Space

Every home and every space is different, and the right mini split setup depends on your specific goals, layout, and budget. Give Assured Comfort Services a call and let's see what your individual needs are — we'll help you figure out whether a single-zone or multi-zone system is the right fit, and walk you through the full installation process.

Call Assured Comfort Services today at 443-968-2336 to schedule your mini split consultation.

Frequently Asked Questions

Do mini splits require ductwork?

No. Mini split systems are completely ductless. They only require a small opening in an exterior wall for the refrigerant line set connecting the indoor and outdoor units.

Can a mini split heat and cool a room?

Yes. Most mini split systems are heat pumps, meaning they provide both heating and cooling from the same unit, making them a year-round comfort solution.

How many rooms can one mini split system cover?

It depends on the system. A single-zone mini split covers one room with one indoor and one outdoor unit. A multi-zone system can connect multiple indoor units, in different rooms, to a single outdoor condenser — each with its own independent temperature control.

Are mini splits a good option for older or historic homes?

Yes. Because they don't require ductwork, mini splits are one of the least invasive ways to add central-style heating and cooling to a historic home without compromising its original structure.

Are mini splits more energy efficient than traditional HVAC systems?

Mini splits can achieve higher SEER ratings than many traditional systems, and because they condition individual zones rather than an entire home at once, they often use less energy overall.