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  • Langs HVAC LLC
  • Alton Bay, NH 03810
  • (603) 268-2187
  • Monday - Friday: 8:00am - 4:00pm
  • 24/7 Emergency Services

Why Call Lang’s HVAC for HVAC Service?

At Lang’s HVAC, we like to be as transparent with our customers as possible. We are locally owned and operated and licensed and insured to work in the State of New Hampshire. We serve Alton, Gilmanton, New Durham, Wolfeboro, and Gilford. Whether you need AC repair, heating repair, or ductwork repair, we pride ourselves on providing:

  • Free estimates
  • 24/7 emergency service
  • Licensed, trusted technicians
  • Experience with boilers, mini split ductless systems, and heat pumps
Get a FREE Estimate!

Areas we proudly serve

Alton, NH

Gilmanton, NH

New Durham, NH

Wolfeboro, NH

Gilford, NH

Belknap County, NH

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  • Langs HVAC LLC
  • Alton, NH, 03809
  • (603) 268-2187
  • Monday - Friday: 8:00am - 4:00pm
  • 24/7 Emergency Services
Free Estimate
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