The Belton bonus room your central air never reaches
A bonus room over the garage, at the back of the house, or up a short flight of stairs is the room the original duct run was never built to serve. In Belton, that space sits through long Central Texas summers with the door shut and the supply vent doing almost nothing. When you finally want it as an office, guest room, or den, the temperature is the first thing that tells you the central system stopped at the landing.
Old West Minisplits posts a flat price for a new mini split install before anyone sets foot on the property. One zone is $2,000, two zones are $3,700, and three zones are $5,400, with four or more quoted individually. These figures cover new installs only, not repairs or service calls, so send the details through the quote form at /#quote and the price is on the table with no standoffs.
Why the last room never gets the air
Central air in Belton is usually sized for the bedrooms and the living room, not the space the builder labeled bonus. Heat stacks under the roof and over an unconditioned garage along the I-35 corridor through brutal Central Texas summers. A single weak register cannot keep up once that room is occupied.
Closing the door to hold cool air in the main house makes the bonus room worse. The return path is gone, the vent is starved, and the thermostat downstairs never hears the complaint from the far end of the house.
One heat pump head, posted price
A ductless mini split is a heat pump. It cools through brutal Central Texas summers and handles mild winters without a furnace. On many Belton houses the outdoor unit sits on a pad beside the garage and the indoor head faces the room you actually use.
The flat price includes equipment, labor, line set, standard electrical, refrigerant, testing, cleanup, and even a Home Depot run for touch-up paint. Licensed contractors perform the installation. There are no trip fees or upcharges on a standard new install.
The price is posted. The exceptions are too
Ductless installs in Central Texas commonly run $3,000 to $6,000 per zone on a custom quote from other contractors, most of whom require an in-home visit before quoting. Old West Minisplits posts 1 zone at $2,000, 2 zones at $3,700, and 3 zones at $5,400 for new installs only. Use the quote form at /#quote. A very long line set, a panel upgrade the house already needed, or unusually difficult mounting are the honest exceptions, stated up front, never buried.
Electrical panel work beyond the standard electrical already in the flat price is work a licensed electrician handles separately. Old West Minisplits does not run new ducts, demolish old ones, or add insulation. If this page sounded like a repair or service-call price, it is not. These numbers are for new mini split installs only.
How we compare
| Factor | Old West Minisplits | New ducts or window units |
|---|---|---|
| Upfront Cost | $2,000 for one new zone, $3,700 for two, $5,400 for three | Ductless work commonly $3,000-$6,000 per zone after a visit, or a custom quote to extend ducts |
| When you know the number | Posted before anyone arrives. Quote form at /#quote | Most other contractors require an in-home visit before quoting |
| Comfort in that room | A dedicated indoor head for the bonus space | A starved register, leftover air from a longer duct, or a noisy window box |
| Summer and winter | Heat pump cools brutal summers and handles mild winters without a furnace | Window units often come out in winter, and duct extensions still fight attic heat |
Straight answers
Is $2,000 the posted price for one bonus room zone?
Yes. A new one-zone install is $2,000. Two zones are $3,700 and three zones are $5,400. Four or more zones are quoted individually. The price includes equipment, labor, line set, standard electrical, refrigerant, testing, cleanup, and a Home Depot run for touch-up paint.
Does this price cover a repair if the central AC still runs?
No. These flat prices are for new mini split installs only, never repairs or service calls. The bonus room gets its own heat pump because the existing system does not serve it well. The central unit can stay as it is.
What if the line set has to travel a long way from the bonus room?
A very long line set is an exception, stated up front. Unusually difficult mounting and a panel upgrade the house already needed are the other two. Standard jobs do not get trip fees or surprise upcharges. Start with the form at /#quote.
Will one head heat that room in winter?
Mini splits are heat pumps, so they heat through mild Central Texas winters without a furnace. Brutal summers are the main reason people finish a bonus room. Winter is covered by the same head.
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