OASIS Cooling & Heating
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HVAC Contractor in Rockingham County, NH

Licensed, insured, and based right here in Rockingham County — from same-week furnace repairs to full central air installs.

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5.0 · 100+ Reviews
Oasis technician in branded gear servicing an outdoor HVAC unit
Family-Owned, Not Private-Equity-Owned

No shareholders. No rollup. Just Oasis.

Oasis started in a home garage with one truck and a handshake. Today the phone is still answered by someone who knows your street — not a call center, not a franchise, and not a rollup counting units. When you call Oasis, you get us.

Licensed & Insured
Family-Owned & Operated
5.0 Rating, 100+ Reviews
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Not sure what to look for in an HVAC contractor?

We put together a straightforward guide covering licensing, reviews, quotes, ownership, warranties, and the red flags to watch for — so you know exactly what to ask before you hire anyone.

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What We Do

HVAC Services in Rockingham County, NH

From mini-split installs to emergency furnace repair, Oasis services every heating and cooling system in Rockingham County — natural gas, propane, and electric.

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5.0 Average · Based on 100+ Reviews
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Service Area

Proudly serving Rockingham County

Rockingham County is where we're based and where most of our work is — see the full list of towns below. If you're just outside the county, get in touch; we do take some jobs beyond this radius.

Aerial view of a Rockingham County, NH town in Oasis's service area
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Fill out the form and a real person will call, text, or email you back — usually the same day.

Serving every town in Rockingham County, NH
Serving every town in Rockingham County, NH
Common Questions

Frequently asked questions

Do you offer emergency HVAC service?
No-heat and no-AC calls get priority. If we're unable to get to you that same day, and Oasis was the installing contractor for your equipment, we'll get you on the schedule same day. If not, call anyway and we'll do our best to schedule a service call.
Are you licensed and insured?
Yes, fully licensed and insured. Oasis is family-owned and locally based — not a franchise or a private-equity rollup, so the person who quotes the job is the same person who's accountable for it.
What towns do you serve?
All of Rockingham County, NH — from Salem to Portsmouth. See the full list of towns we serve below.
How do I know if I need a repair or a full replacement?
We'll always try to repair before we recommend replacing anything. If a system's genuinely at the end of its life, we'll tell you plainly why — and what a replacement would actually cost — instead of pushing an upsell.
Can you install a mini-split in a home without existing ductwork?
Yes — that's exactly what ductless mini-splits are built for. They're a common fit for additions, converted garages, and older homes that were never built with central ductwork.
How often should I have my system serviced?
Ideally at the beginning of the season in which the system will be used the most — heating systems in the fall, cooling systems in the late spring or early summer.