Room without heating or cooling
An addition, garage or sunroom that's always uncomfortable.
What you're probably seeing
An addition, garage or sunroom that's always uncomfortable.
Likely causes
- No ductwork reaches the space, or it's on a separate floor.
Safe checks you can do now
- Measure the room.
- Note how you use it and when.
When to call a pro
You want a ductless mini-split quoted for the space.
General information about common causes, not a diagnosis of your home.
FAQ
Quick answers
Who fixes room without heating or cooling?
A heating and cooling company. Call (844) 511-3573 to connect with an independent local heating and cooling company.
How much does it typically cost?
New heat pump, installed: $10,000–$25,000+ (HomeGuide 2026 national ranges). Your pro sets the real number after seeing the job.
When should I call?
You want a ductless mini-split quoted for the space.
Related
More heating & cooling problems
Fix nowPlumbing
Gas smell in the house
A rotten-egg smell near the stove, furnace, water heater or meter.
$45–$150 per hour, plus a $50–$200 service call
Fix nowHeating & Cooling
No heat
The furnace or heat pump won't come on, or the house keeps getting colder.
$125–$480 (ignitor $100–$250, flame sensor $80–$250, blower motor $300–$900)
This weekHeating & Cooling
Furnace blowing cold air
Air comes from the vents but it isn't warm.
$125–$480 (ignitor $100–$250, flame sensor $80–$250, blower motor $300–$900)