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Air Conditioning in Portsmouth


Due to Portsmouth NH hot weather, air conditioning systems tend to break down during those hot days. Coastal Heating & Cooling Specialists prides ourselves in fast and friendly services, affordable pricing and the quality of our a/c repairs.

Signs You Need Air Conditioning Repair

When summer arrives in Portsmouth, there is nothing worse than suddenly discovering your A/C is not working. Because your air conditioner is such an important part of being able to feel comfortable in your home, Coastal Heating & Cooling Specialists are dedicated to providing Portsmouth homes and businesses with fast, reliable service whenever their system fails to deliver on the promise of cool, comfortable air.

Sometimes, when your way of keeping cool doesn’t appear to be working, it can be an easy fix. Other jobs are more complex and involved. It’s important for clients to be able to spot the signs that their system is in need of repair and then contact Coastal Heating & Cooling Specialists so that we can resolve the problem before it gets out of control. If the problem is left unattended to, it is possible that you will need to replace your system, which can be very expensive. Save your wallet the turmoil of replacing these units essential to surviving the summer heat and watch out for these obvious and sometimes subtle signs that your system is in need of repairs.

No Cool Air

When you find that, even at full blast, the air coming out of your vents isn’t as cold as it usually is or it isn’t cold at all, this is obviously a sign that your A/C needs serious repair. A lack of cold air could mean that the system’s compressor had failed, but it could also mean that your Freon levels are too low. To find out for sure, call (603) 926-4442 and get the specialists on the case.

Low Air Flow

If you notice that there is weak or little air flow through your vents, the compressor could be on its last legs. However, if the air flow is low, then it’s more likely that there is a problem with your ductwork. It could be a simple obstruction or a technical issue. Either way, we are at your service.

Moisture or Leaks

When you see leaks or moisture collecting around your system, it is typically for two reasons. The first and most serious reason is that the refrigerant is leaking. Refrigerant leaks are serious health risks so don’t put off calling in the specialists. Water pooling next to the machine could mean that the drain tube is blocked or broken. This is not nearly as serious as a refrigerant leak but the longer you wait, the more likely you’ll have to deal with mold. So don’t delay, contact us today.

Strange Sounds and Smells

Whenever you hear a squealing, grating or grinding sound from the central cooling system, it simply means that there is something wrong inside the unit. Unless you have a comprehensive understanding of how all the parts fit together, we do not recommend that you touch it or try to repair it yourself.

As for pungent or foul smells, it usually means that the wire insulation has burned out. Musty smells may be an indication that there is mold inside your unit or ductwork, which must be taken care of immediately.


Air conditioner tips to allow for your cooling system to operate properly:

  • Check or Change your furnace filter monthly. Dirty filters restrict airflow to your evaporator coil that can cause your a/c system to breakdown.
  • Use your garden hose to clean your outdoor condensing unit to allow proper airflow through your outdoor condensing unit. (Make sure your thermostat is off while performing this cleaning).
  • These tips will save you money, however it is highly recommended that you call us to clean your air conditioning system.
  • Make sure your thermostat is mounted level and if its a digital thermostat make sure the batteries are good.


Follow these steps when choosing your air conditioning repair or installation contractor. Inquire if your a/c contractor is EPA certified (THAT IS THE LAW). If your contractor is not EPA certified it is possible that they can cause more harm to your a/c system which will cost you more money in the future. Make sure your HVAC contractor is properly licensed and insured. Get up front pricing from your contractor. Repair prices may vary.


Air conditioning repair in Portsmouth NH has a high demand during peak air conditioning season. Our seasons are short but extremely hot and the cycle demand of our air conditioners is long. Therefore, it's imperative to have your a/c system tuned up. If you have an older central air conditioning system, consider upgrading to a high efficient air conditioner to cut your electrical bills down.


For any service need and any brand of air conditioners, Coastal Heating & Cooling Specialists is proud to provide you with the most reliable, professional and budget minded a/c services in Portsmouth NH and its surrounding suburbs.

And if there's anything else we can do to make your experience any better, just ask. We appreciate your interest and look forward to earning your business.

Coastal Plumbing Heating and Cooling (air conditioning and refrigeration) Specialists is based in Rockingham County, NH, New Hampshire (Hampton Falls) and also in York County, Maine ME (York). As a Better Business Bureau Accredited plumbing, heating, air conditioning and refrigeration contractor company, we provide residential and commercial clients with full AC, furnace and boiler repair, inspection, installation and maintenance services specifically to the following towns and cities both counties. See below for details:

For Rockingham County, New Hampshire (NH), we serve the following cities and towns:
Atkinson, NH (03811), Auburn, NH (03032), Derry, NH (03038), East Derry, NH (03041), East Kingston, NH (03827), Epping, NH (03042), Exeter, NH (03833), Fremont, NH (03044), Greenland, NH (03840), North Hampton, NH (03862), Hampton, NH (03842), Hampton Falls, NH (03844), Kingston, NH (03848), Londonderry, NH (03053), New Castle, NH (03854), Newfields, NH (03856), Newmarket, NH (03857), Newton, NH (03858), North Hampton, NH (03862), Northwood, NH (03261), Nottingham, NH (03290), Plaistow, NH (03865), Portsmouth, NH (03801), Rye, NH (03870), Sandown, NH (03873), Seabrook, NH (03874), Stratham, NH (03885), West Nottingham, NH (03291).

For York County, Maine (ME), we serve the following towns and cities:
Kittery, ME (03904), Kittery Point, ME (03905), Ogunquit, ME (03907), York, ME (03909).