Indoor Air Quality Experts since 1946

Skilled staff. 24-hour service. An Online Store for real savings. And a commitment to your comfort.

Winter or summer, keep your family truly comfortable by turning to the experts at Climate Design Systems to install and maintain your heating or air conditioning system. Our highly skilled and friendly personnel have provided exceptional service to the communities north of Boston and south of Manchester for over 60 years.

Climate Design's staff has the experience and expertise to install, maintain and service all types and brands of HVAC systems:

Heating: furnaces, boilers, hybrid heat, radiant heat, heat pumps, geothermal
Air conditioning: central AC systems, ductless AC, high-velocity AC
Indoor air quality: air purification, humidification, fresh-air ventilation, UV lamps

We're the experts for green heating, cooling and air purification technologies. Turn to us for cost-saving and environmentally friendly ways to heat or cool your home--and for real 24-hour service.

Schedule a furnace, air conitione, hot water heater repair service online. We Service Northern MA, Amesbury, Newbury and Newburyport MA and Sourhrtwern NH Salem, Nashua, Plaistow NH.

Save money on repairs and installations on your furnace, boiler, or ac system.

Locally owned and managed heating and cooling repair and replacement company in Northern MA and Southern NH.

Hear what our heating and cooling customers say abour our furnace and A/C repair and installations!

Climate Design Systems is an independently owned and operated Company in the Merimack Valley Region of Northern Massachusetts and Southern New Hampshire performing Heating, Cooling, Hybid heat, Geothermal Heat Pump, Air Conditioning, and furnace repair, service, replacement and maintenance.

Climate Design Systems continues a heritage of heating and cooling contractors spanning three generations. Climate Design Systems employs only the best plumbers & technicians and service experts for plumbing repairs, boiler repairs, air conditioner repairs and, furnace repairs as well as all air conditioner replacements, furnace replacements and boiler replacements in Northern Massachussetts in Amesbury MA, Andover MA, North Andover MA, Billerica MA, Boxford MA, Byfield MA, Chelmsford MA, Dracut MA, Georgetown MA, Groveland MA, Haverhill MA, Lawrence MA, Lowell MA, Merrimac MA, Methuen MA, Tewksbury MA Newbury, Newburyport MA, Salisbury MA, and suroounding areas. As well as Atkinson NH, Danville NH, Derry NH, Hampstead NH, Hudson NH, Hollis NH, Kingston NH, Londonderry NH, Manchester, NH, Nashua NH, Plaistow NH, Salem NH, Sandown NH, Windham NH, and surrounding areas. To set-up a repair service estimate or replacement estimate, call (978) 689-8312. Climate Design Systems is an authorized dealer of many AC, Air conditioners, furnace, humidifier, filter, thermostat and water heater, brands, and services Lennox, Carrier, Burnham, York, Bryant, Payne, Bradford White, Rinnai, Kohler, Aprilaire, Arzel, Honeywell, Trane, Rheem, Ruud, Amana, Crown, Frigidaire, Gibson, Goodman, Lochinvar, Maytag, American Standard, GeoExcel, General,Weil McLain, A.O. Smith, White Rodgers, Dynamic and Skuttle. Let us perform our service magic on your HVAC and plumbing system.