Air Conditioner Installation, Repair and Replacement


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Installation, maintenance, and repair services improve the energy efficiency of your home and reduce heating costs. learn more

Air Conditioning

Central AC Systems

Efficient and affordable central air conditioning systems improve indoor air quality and help you beat the heat. learn more


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Massachusetts and southern New Hampshire residents rely on Main Stream Mechanical. learn more

Our certified central AC repair technicians can service and maintain all makes and models.

Routine and emergency repair services for your central air conditioning system keeps everyone cool and happy, and your system operating at peak performance

For central AC repair, service and maintenance, make sure the company you call has certified technicians handling your needs. Your air conditioner is your first line of defense against the hot, humid summers of New England. Main Stream Mechanical has provided the highest standard of AC repair, maintenance and servicing options for families since 1996.

Importance of Central AC Repair, Maintenance and Servicing

There are a number of reasons that problems with your air conditioner need to be resolved in a timely manner.

Improve Comfort and Safety.

The CDC reports that the prevalence of heat strokes is at a 40 year high, due to rising temperatures in recent years. The risk of heat related illness is highest with young children and seniors over the age of 65. The risk is significantly lower if your air conditioner is working properly.

Reduce Risk of Fire

According to data from the National Fire Protection Association, faulty air conditioners are responsible for 2,500 fires every year. You need to make sure that your central air conditioner is wired correctly to reduce this risk.

Reduce Wasteful Energy Consumption

The average air conditioner is responsible for 5% of household energy consumption. This figure can be much higher if your AC isn’t thoroughly cleaned and maintained at least once a year.

Overview of AC services provided by Main Stream Mechanical

We offer a wide array of services to our valued consumers in northern Massachusetts and southern New Hampshire.

Central AC (central air conditioning) Repair

Central AC systems are complex and consist of many parts that can fail over time. If these problems aren't resolved, a number of problems may arise, including:

  • Inefficient energy consumption
  • Lack of proper cooling
  • AC condenser and coil freeze ups
  • Outdoor condenser internal parts failure
  • Water damage to controls
  • Air unit failures

Fortunately, our certified technicians can diagnose the source of these problems and promptly resolve them. Here are some of the AC repair services Main StreamMechanical provides:

  • Coil cleaning
  • Start/Run Capacitor replacement
  • Contactor replacement
  • Rodent damage repair
  • Refrigeration charge trimming
  • Fix tripped circuits
  • Replace clogged filters
  • Remove clogs from condensate pumps

Some problems are too complex to handle on your own. Call on the professionals to diagnose and resolve the problem.

Central AC Maintenance, head off problems before they arise, and save money!

AC failures rarely arise overnight. They generally begin as minor problems that progressively worsen over time. Here are some reasons routine maintenance is so important:

  • It reduces the risk of unforeseen problems and costly repairs.
  • You improve energy efficiency.
  • You can minimize the risk of leakage, which often occurs when the condensate line or air filter is clogged.

Our trained technicians offer routine maintenance to help prevent these problems and help ensure your AC runs smoothly and efficiently. These services include cleaning and necessary tune-ups.

Your AC system should receive a scheduled maintenance at least once a year. We recommend scheduling it in early spring, because your unit may have accumulated debris or rodent damage after several months of non-use.

Schedule Your AC Service Today and Get Ahead of Failures by Being Proactive.

We travel throughout the greater Newburyport, Boxford, Topsfield, Bedford, Lexington and Arlington areas in MA and the greater Derry, Seabrook, Stratham, Dover, Exeter and Rye areas in NH.

See our full service area list for towns not noted, chances are we travel to yours, or call today, (978) 834-0849 for a no obligation consultation.

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