(833) 603-4822
(833) 603-4822

Refrigeration · Air Conditioning · Heating

We Are Here to Help!

Call us at (833) 603-4822
or fill out this easy form.

Serving South-eastern New Hampshire and the North Shore of Massachusetts

Commercial. Residential. Restaurant. Multi-unit.

We offer fast, dependable HVAC/R service, 7 days a week, 365 days a year.

As recognized experts for all things refrigeration, heating and air conditioning for the South-eastern New Hampshire and the North Shore of Massachusetts, our customers have come to rely on us for expert, local service, 24 hours a day. We don’t take a vacation from your problems.

We offer a variety of maintenance services designed to address your unique HVAC needs and our rates are among the most competitive in the industry. In addition, we offer maintenance and service contracts. We will commit to you!

We value and appreciate the trust placed in us by our customers! Whether your project is big or small—when you see the white 603 Mechanical van pull up, you’ll know we’ll get the job done right the first time.

Have all your installations and repairs done by professionals. Whether you are a residential or commercial customer, you’ll be taken care of. We’re 603 Mechanical— N.H. natives with the human touch.

What We Do

603 Mechanical offers many HVAC services– from preventive maintenance to installation. When you call, our main number goes directly to a service technician who will contact you and evaluate what you need: Fast, Focused and we’ll get it right the First time.

We’re your local experts – and we’ve always been local.