Mitsubishi Electric Diamond Contractor · Serving Midlothian for 40+ Years
Ductless Mini-Split Installation & Repair in Midlothian, VA
Heating and Cooling for the Rooms Your Ducts Don't Reach
Stoneman Heating & Air Conditioning installs and repairs ductless mini-splits for homes in Midlothian, Chesterfield, Chester and Powhatan. As a Mitsubishi Electric Diamond Contractor, we install systems that carry Mitsubishi’s 12-year parts and compressor warranty once registered. We repair every brand, and every installation starts with a free in-home estimate.
Virginia Class A Contractor #2705193277 ● BBB A+ Accredited ● Trane Dealer ● Rheem Pro Partner ● Mitsubishi Electric Diamond Contractor
Is a Mini-Split the Right Fix for Your Room?
A mini-split is usually the best answer when a space has no ductwork, or when reaching it with your ducts would cost more than it’s worth. Common jobs:
- A bonus room over the garage that's hot all summer
- An addition or sunroom the original ducts never reached
- A converted garage, basement or attic
- A home office you want at its own temperature
- An older home with no ductwork, or one heated by baseboards
What's Included in a Stoneman Mini-Split Installation
Every Stoneman mini-split installation includes:
- Layout: at your estimate we measure each room and plan where the indoor and outdoor units go and how the refrigerant and drain lines run.
- Permits: we pull the county permits the job needs.
- Installation: we mount the units, run the lines and connect the system.
- Startup: we test every room in heating and cooling, then walk you through the remote and Mitsubishi’s Comfort app.
- Concierge visit: after the install, our Concierge team comes back to go over the system with you.
Single-Zone or Multi-Zone: How Many Indoor Units Do You Need?
A single-zone mini-split pairs one outdoor unit with one indoor unit, for one room or an open space. A multi-zone system runs several indoor units from one outdoor unit, and each room gets its own temperature. Most homes need one indoor unit per room, since walls block the airflow. Size depends on sun, insulation and ceiling height as much as square footage, so we measure each room at your estimate.
One Room
Single-Zone Mini-Split-
One outdoor unit, one indoor unit
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Bonus rooms, sunrooms and additions
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Its own remote and temperature
Several Rooms
Multi-Zone Mini-Split-
Up to eight indoor units on one outdoor unit
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A separate temperature in each room
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Fewer outdoor units outside the house
Ducts Everywhere but One Room
Central System + Mini-Split-
Keep your central system for the main house
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Add a mini-split for the room it can't reach
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Or extend your ducts instead (we build ductwork in-house)
Want one ducted system for the whole house? See heat pump installation →
How Much Does a Mini-Split Cost in Midlothian?
A mini-split’s price depends on how many indoor units you need, the style of each unit, how far the lines run between the indoor and outdoor units, and whether your electrical panel needs a new circuit. One room costs far less than four, so we quote after seeing the rooms. The estimate is free, with an upfront price and no pressure. There’s no federal tax credit for a 2026 install, and Virginia’s Home Energy Rebates haven’t launched yet.
Why Midlothian Homeowners Choose Stoneman for Mini-Splits
Mitsubishi Diamond Contractor
Trained and qualified by Mitsubishi on its equipment and how to install it.
Mini-Split or Ductwork
We install both, and our metal shop builds ductwork in-house, so we can price both fixes and tell you which one fits the room.
A Person Answers
Call (804) 744-6105 during office hours and you'll reach our Midlothian office. After hours, we're on call 24/7.
40+ Years, Locally Owned
5.0 stars from more than 350 Google reviews, an A+ from the BBB, and a Virginia Class A Contractor license.
Do Mini-Splits Keep Up With Chesterfield Winters?
Yes. A mini-split is a heat pump, and January lows here average about 29°F, well within what a modern inverter system handles. For rooms that need full heat on the coldest nights, Mitsubishi’s Hyper-Heating (H2i) models hold 100% of their rated heating capacity down to 5°F and keep running to -22°F. In summer, the same system pulls moisture out of a muggy room. For whole-house humidity, see our indoor air quality services.
Mini-Split Repair & Service in Midlothian
Mini-Split Repair
Stoneman repairs ductless systems of every brand, including ones we didn’t install. A diagnostic visit is $135 during business hours or $195 after hours and on weekends ($155 for maintenance agreement members), and the fee goes toward your repair. If an older system needs a major repair, we’ll tell you when replacing it makes more sense. Call (804) 744-6105 to set up a visit.
Common Mini-Split Problems We Fix:
- Not cooling or not heating
- Water dripping from the indoor unit
- Blinking lights or an error code
- Ice on the outdoor unit that won't clear
- A musty smell when it starts up
- A remote or app that stopped responding
Mini-Split Maintenance
Rinse the washable filter in each indoor unit regularly; a clogged filter is a common cause of weak airflow and a frozen coil. A professional visit cleans what you can’t reach: the indoor coil, the blower wheel and the drain line, plus a check of the outdoor unit.
What Homeowners Say About Their Stoneman Mini-Split
- 5.0★ Google Rating
- 350+ Google Reviews
- 40+ Years Locally Owned
- BBB A+ Rating
Ductless Mini-Split FAQs
Do I need a permit for a mini-split in Chesterfield County?
For a new one, yes. Chesterfield County treats a new mini-split as new mechanical equipment, which needs a mechanical permit, and adding a heat pump brings electrical rough-in and final inspections. The county exempts a like-for-like replacement of an electric heat pump. We pull whatever permits your job needs.
Can a mini-split heat and cool my whole house?
Yes, with a multi-zone system and an indoor unit in each main room. If your home already has ductwork, a central heat pump is usually the simpler whole-house choice, and a mini-split covers the rooms the ducts don’t.
How long does a mini-split installation take?
A single-zone install is often finished in a day. A multi-zone system takes longer, depending on how many indoor units go in and how the lines run. You’ll get the schedule with your estimate.
Ready to Fix the Room That's Never Comfortable?
Locally owned and serving Midlothian for more than 40 years