supplying and installing Plumbing and HVAC systems

In Merrimack County, New Hampshire

We Offer Financing

603 mini splits

Mini Splits done your way!

Mini Splits done your way!

Outdoor air conditioning unit installed on a pad next to a white house with vinyl siding.
Make an appointment
Empty room with light blue walls, a ceiling fan, an air conditioning unit, a window with wooden trim, and wooden baseboard .
An outdoor air conditioning unit installed next to a house with siding, with a lawn, swimming pool, and solar panels visible in the background under a clear blue sky.
Wall-mounted air conditioner displaying the temperature 69 degrees.
Wall-mounted white air conditioner unit with a small logo, positioned on a beige wall between dark curtains and a window, with a ceiling and part of a ceiling light fixture visible.
Exterior of a house with an air conditioning unit mounted on the wall near the ground, with a weathered concrete surface below and white horizontal siding on the house wall.
Family owned business.

A family owned local company

We at 603minisplits.com are experienced professionals who look forward to supplying and installing your efficient Ductless Mini Split System with Hyper heat and cooling at an affordable price.  We offer a 5 year labor warranty along with the manufactures, a 5 year warranty on parts and 7 years on the compressor.

Modern dining room with wooden table and chairs, a potted plant, decorative items on a sideboard, green accent wall, and air conditioner above.
Modern living room with a green wall, air conditioner, wooden sideboard with lamp and books, indoor plant, and window with blinds.
Cozy living room with a mustard yellow sofa, beige pillow, and knitted blanket. Round wooden coffee table with small bowls. Wall-mounted air conditioner above. Potted plants on either side. Woven wall decor and neutral wall color.

Testimonials

“When temperatures were in the high 90’s this summer we knew we needed to finally get some ductless mini splits installed right away. We called 603 Mini Splits and got a quick consulation with a very fair price. I wished we had called earlier as we are now enjoying being indoors again.”

— Michael S.