
Heating & Cooling in Portsmouth, NH
Local HVAC from a Milton-based crew — mini-splits, heat pumps, furnaces, and AC sized for New England weather.
Portsmouth’s coastal humidity and older homes ask a lot of HVAC. We size mini-splits and heat pumps for Seacoast summers, keep boilers and furnaces reliable through nor’easters, and leave clean installs that fit historic neighborhoods and modern renovations alike.
What we do in Portsmouth
- Mini-split installation and service
- Furnace and boiler repair & replacement
- Cold-climate heat pumps
- AC and heat pumps sized for coastal humidity
- Outdoor equipment guidance for salt-air wear
- Free in-home estimates
- Licensed, EPA certified & insured
Our services
- AC Installation & RepairCool, quiet comfort when humid July hits.
- Furnace & Boiler HeatingHeat you can count on when it's ten below.
- Mini Splits & Cold-Climate Heat PumpsDesigned for New England weather — heat and cool in one system.
- Seasonal Tune-Ups & MaintenanceThe cheapest repair is the one you never need.
Frequently asked questions
Do you serve Portsmouth, NH?+
Yes. North Country Heating & Cooling regularly serves Portsmouth, NH from our Milton base with mini-splits, heating, cooling, and maintenance. Call during business hours or book online for a visit.
Can I get a free HVAC estimate in Portsmouth?+
Absolutely. We offer free in-home estimates for replacements and new installs in Portsmouth, NH. You'll get repair-vs-replace options without a commissioned sales pitch.
Do mini-splits work through Portsmouth winters?+
Cold-climate mini-splits and heat pumps are a strong fit for New England winters when sized correctly. We design systems for real local design temperatures — not a one-size catalog spec.
Nearby towns we serve
Need service in Portsmouth?
Free in-home estimates, fair non-commissioned advice, and clean work from a local Southern NH crew.