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10 Best HVAC Companies in Exeter, NH

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Written By Bradford Cuthrell

Last Updated April 2024

On average, 55% of the energy used in American homes is for heating and cooling, according to the Department of Energy. Since such a significant portion of your utility bill goes toward heating and cooling, you'll want to make sure the HVAC system in your Exeter home is functioning optimally.

A top HVAC contractor can get your system into shape for a reasonable price, saving you money while keeping your home comfortable. That's why we've assembled this guide to the top HVAC companies in Exeter.

Top 10 Best HVAC Companies in Exeter

Coastal Mechanical

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253 Calef Hwy Unit 1, Epping, NH 03042 (603) 693-7195 coastalmechanicalllc.com

Informative resources

Prompt service delivery

Reliable customer support

Free quote

Clear pricing policy

Services Offered

Indoor air quality
Emergency services
Ventilation
Maintenance
Boiler installation
Ac installation
Ac repair
Duct cleaning
Furnace installation

North Shore Home Energy LLC

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77 Exeter Rd Unit B, South Hampton, NH 03827 (978) 457-1772 nshec.com

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Informative resources

Clear pricing policy

Free quote

Services Offered

Boiler installation
Ac installation
Furnace installation
Ductless
Maintenance
Furnace repair
Emergency services
Inspection
Boiler repair

Kearney HVAC Inc

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158 Lafayette Rd, Salisbury, MA 01952 (978) 363-6106 kearneyhvac.com

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Reliable customer support

Services Offered

Ductless
Maintenance
Boiler installation
Ac installation
Indoor air quality
Furnace installation
Ac repair
Filtration
Ventilation

Key Heating & Air Conditioning

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8 Continental Dr, Exeter, NH 03833 (833) 235-8811 keyhvac.com

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Clear pricing policy

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Reliable customer support

Services Offered

Filtration
Furnace installation
Ac installation
Ductless
Indoor air quality
Maintenance

MCP HVAC

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3601 Lafayette Rd, Portsmouth, NH 03801 (603) 501-9454 mcphvac.com

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Clear pricing policy

Free quote

Reliable customer support

Services Offered

Ac installation
Maintenance
Boiler installation
Indoor air quality
Furnace installation

NextGen Aire

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31 S Hunt Rd, Amesbury, MA 01913 (978) 213-4508 nextgen-aire.com

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Free quote

Clear pricing policy

Prompt service delivery

Informative resources

Services Offered

Furnace installation
Indoor air quality
Ac repair
Ac installation
Ductless
Emergency services
Maintenance
Filtration

Ideal Temp HVAC

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90 Copp Dr, Fremont, NH 03044 (603) 347-1346 idealtemphvac.com

Reliable customer support

Prompt service delivery

Clear pricing policy

Free quote

Services Offered

Ductless
Furnace installation
Ventilation
Indoor air quality
Maintenance
Boiler installation
Ac installation

C&C Air Solutions

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4 Becky's Way, Seabrook, NH 03874 (603) 760-2861 candcairsolutions.com

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Services Offered

Furnace installation
Indoor air quality
Duct cleaning
Ductless

Diamond Mechanical LLC

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388 NH-125 Suite 1, Brentwood, NH 03833 (603) 580-4844 diamondmechanicalnh.com

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Clear pricing policy

Reliable customer support

Services Offered

Emergency services
Furnace installation
Maintenance

Hydro Air Inc.

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39 Cedar Rd, North Hampton, NH 03862 (603) 964-4097 hydroairinc.com

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Indoor air quality
Ductless
Maintenance
Boiler installation
Furnace installation
Ac installation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

A faulty or aging HVAC system probably needs attention from a professional who can make repairs or install a new unit. Look out for these common indicators that your HVAC needs service:

  • Corrosion, cracking, or rust
  • Poor air circulation or uneven heating/cooling
  • Frequent breakdowns and need for repairs
  • Odd noises when turning on
  • Unusually high energy bills
  • Temperature control issues or thermostat malfunctions
  • Refrigerant leaks
  • An HVAC system that's over 15 years old

Arrange an inspection if you notice any of these issues. A local technician can evaluate your system, detect problems, and decide whether you need to fix or replace your HVAC.

Cost of HVAC Installation and Maintenance in Exeter

What you spend on HVAC installation or maintenance depends on your system style. Common HVAC unit styles include the following:

  • Split or mini-split: If your home lacks the right ductwork for central heating or air, you likely have a split HVAC system. Split or mini-split systems consist of internal units that control the temperature in individual rooms. These interior units are all connected to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions comparably to a regular split system. It provides flexibility by providing the option to draw on either electricity or gas for energy.
  • Heat pump: Heat pumps work by moving hot and cold air between your home and the outdoors. These systems don't create heat or air conditioning themselves, and are more effective in more moderate climates.
  • Packaged heating and air: Packaged HVAC systems are a smart choice for smaller houses. They have a single cooling and heating unit, normally in a basement or attic. This unit is often compact, energy-efficient, and easy to maintain.

HVAC maintenance costs vary depending on the particular service needed. HVAC systems are complex and might require different maintenance services. Prices for some common services are as follows:

HVAC Unit TypeCost
Split$2,004-$5,108
Hybrid Split$4,060-$7,480
Heat Pump$3,144-$32,034
Packaged Heating and Air$263-$438

Ways to Save Money on HVAC Costs

Repairing or replacing your HVAC system when needed is crucial, but can be expensive. Fortunately, there are actions you can take to slow the wear and tear on your system.

  • Change filters regularly. Replacing or cleaning your air filters every 1–3 months helps air flow smoothly through your system. Also try to keep debris away from the external sections of your HVAC system as much as possible.
  • Monitor for potential problems. Keeping an eye out for problems, for instance by consistently checking your thermostat and energy bills, helps you resolve them before they get out of hand.
  • Change the position of your blinds seasonally. During winter, leave your blinds open so your home benefits from passive solar heat. In summer, keep blinds shut to block out heat. Doing both lowers the amount of work your HVAC system needs to do.
  • Keep your system clean. Cleaning your ductwork, condenser fan blades, indoor evaporator coil, and grills regularly helps your HVAC system work efficiently and reduces the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system once it begins to look dirty.
ServiceCost
Filter Replacement$66-$175
Condensor Cleaning$1,315-$3,946
Thermostat Repair$88-$219
Ductwork Cleaning$421-$1,052

How To Choose a Local HVAC Company

It's important to know what makes a good HVAC company. Working with a contractor that's properly licensed and highly experienced will give you confidence that they can keep your system running efficiently, providing you with effective air conditioning and heating in your home.

Compare Multiple Bids

Contact at least three HVAC companies for quotes. Explain the issues and have technicians visit to inspect your HVAC system if possible. Compare the providers' explanations, solutions, estimated costs, warranties, and timeframes. Avoid contractors that pressure you or demand payment upfront.

Check Credentials

When selecting an HVAC company, choose one with technicians that have the right training, licenses, and experience. In all states, HVAC contractors must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is mandatory for any individual who helps "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." An individual must pass an exam (the type of exam depends on what kind of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled on a state-by-state basis.

New Hampshire doesn't have specific state-level licensing requirements for HVAC contractors. However, in certain cases, a contractor may require a Fuel Gas Fitting or Oil Heating Technician license from the Mechanical Safety and Licensing Board. You will also want to check whether your city or municipality has any local licensing requirements. You should also check reviews and complaints on sites like Yelp, the Better Business Bureau (BBB), and Google Reviews. Choose a company with glowing reviews and reports of great customer experiences.

Understand Work Details

It’s important to know what the work process will look like. For HVAC repairs, the company should list the exact parts that need replacement and why. Confirm that your technician will clean and test the full system afterward to ensure proper functioning. When getting a replacement, ask your contractor to explain the new HVAC system features, estimated installation time, brand, model, and energy efficiency. Before signing a contract, you should understand the process your provider will use to properly size the system for your home and the price you'll pay.

Compare Warranties

A reputable HVAC company will back its repair services and equipment installations with a warranty. The longer and more comprehensive the coverage terms, the better. Carefully review warranty terms for each contractor and choose the provider that offers the most protection at a reasonable price.

Get Quote in Writing

Get written quotes before starting any HVAC work. The quote should cover costs for both labor and materials. Review all terms carefully before signing.

Frequently Asked Questions About HVAC in Exeter, NH

You should have your HVAC system inspected approximately twice a year. After completing their inspection, your technician will tell you if any services are needed. You should also call a technician if you start noticing issues such as unusual smells, leaks, or strange noises. If your home has ductwork, it should be inspected every few years.

Usually, you should schedule inspections in the spring and fall, as technicians tend to be less busy at these times. This also helps make sure your system is prepared for the summer and winter, when it probably sees the most use.

You can save energy during the winter by reducing the amount of work your HVAC system needs to do to heat your home. Keep your thermostat as low as you can and avoid making drastic temperature changes — only increase or decrease it a few degrees at a time. If possible, try switching to a smart thermostat.

It takes roughly one to three days to have your HVAC system installed or replaced. If you only need an air conditioning unit or a furnace, this can take between half a day and two days. This timeline can be influenced by the size of your home, how easily accessible your system is, and any new issues your technician discovers.

Normally, HVAC financing is provided by a third-party lender. If your HVAC company doesn't offer these options, you may consider taking out your own loan. Be sure to talk to a financial advisor and your HVAC company to find out what options are available and appropriate for your situation.

There are several ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and clean or change your air filters on a regular basis.
  • Schedule regular inspections to take care of problems as they come up.
  • Keep your attic well-ventilated and make sure all doors and windows are well-sealed.
  • Install a smart thermostat. If you aren't able to purchase one, try to keep your inside temperature as close to the outside temperature as is comfortable.
  • When you need to replace part of your system, explore Energy Star-certified or similar environmentally friendly options.

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