ATTRUNNR demonstration site. The business, people, reviews, credentials, and contact details shown here are fictional.
Heating or cooling out?
Dispatch available 24/7
NL
Northline
Heating & Air
Technician checking an outdoor heat pump beside a home
Heating and cooling across greater Indianapolis

Comfort restored.
Without the runaround.

Clear answers, careful work, and one local team for repair, replacement, and maintenance.
Something stopped
Repair my system
Planning ahead
Compare replacement options
Keep it reliable
Book maintenance
Locally operated since 2012
Licensed and insured
Upfront repair options
Background-checked technicians
What we handle

The right route for the system you have.

01

Cooling repair

Diagnosis and repair for systems that stop, leak, freeze, or run without cooling the house.
02

Heating repair

Furnace and heat-pump troubleshooting with clear repair options before work begins.
03

System replacement

Right-sized heating and cooling options for the home, priorities, and budget.
What customers notice
“The technician explained what had failed, what could wait, and what each option would cost before touching the system.”
Dana R. · Carmel
4.9
fictional demonstration rating
Proof belongs next to the decision it supports, not repeated in every section.
A calmer service call

Know who is coming and what happens next.

01

Tell us what changed

Share the symptoms, system type, and whether the home is without heating or cooling.
02

Get a clear arrival window

Dispatch confirms the technician and keeps you updated if the schedule moves.
03

Choose with the facts

Diagnosis first. Repair or replacement options second. Work begins after approval.
Need service?

Start with the problem.
We’ll take it from there.