10 Best HVAC Companies in Merrimack, NH

Signs You May Need HVAC Repair or Replacement

If your home's HVAC system isn't working correctly or getting old, you might need an HVAC contractor for maintenance or replacement. Watch for these common indicators that your system requires professional attention:

• Temperature control issues or thermostat malfunctions
• Strange noises when the system turns on
• Rust, corrosion, or cracking
• Refrigerant leaks
• Frequent breakdowns and need for repairs
• Unusually high energy bills
• Uneven heating/cooling or poor air circulation
• An HVAC system that's over 15 years old

If you notice any of the above, have a local HVAC technician inspect your system. They can identify problems and recommend whether repair or full HVAC replacement is the better solution.

Cost of HVAC Installation and Maintenance in Merrimack

The cost of HVAC installation or maintenance will vary depending on the type of unit you have. Common varieties of HVAC units include the following:

• Split or mini-split: If your home lacks the ductwork for central heating and cooling, you probably have a split or mini-split system instead. Split HVAC systems have internal units in each room to manage temperature. These connect to an outdoor unit.
• Hybrid split: A hybrid split HVAC unit operates similarly to a regular split system. It provides flexibility by having the option to use either electricity or gas for energy.
• Heat pump: Heat pumps exchange hot and cool air between your home and the outdoors. They don't make their own heat or AC, so they function best in moderate climates.
• Packaged heating and air: Packaged HVAC systems are more popular in smaller homes. Packaged systems consist of a single combined heating and cooling unit that's normally located in an attic or basement. This unit tends to be compact, efficient, and easy to maintain.

HVAC maintenance prices vary based on the specific services needed. HVAC systems can be complicated and potentially require several different services. Fees for typical jobs are as follows:

Ways to Save Money on HVAC Costs

HVAC upkeep is important, but can be expensive. Luckily, homeowners can take steps to reduce wear and tear on their system and lower future maintenance needs.

• 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 decreases the amount of work your HVAC system needs to do.
• Change filters regularly. Switching out your air filters or washing them every 1–3 months allows effective air circulation through your HVAC system. Also try to keep debris from accumulating on the outdoor sections of your HVAC.
• Keep your system clean. Cleaning your grills, condenser fan blades, ductwork, and indoor evaporator coil regularly helps keep your HVAC system working 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.
• Monitor for potential problems. Keeping an eye out for problems, for instance by consistently checking your thermostat and energy bills, allows you to resolve them before they get too expensive.

How To Choose a Local HVAC Company

Knowing what to look for in an HVAC company is important for a successful project. Partnering with an experienced, licensed contractor can give you peace of mind and ensure your system provides reliable air conditioning and heating for your home.

Compare Multiple Bids

Contact at least three HVAC contractors for quotes. Explain your issues and schedule an in-person inspection if possible. Compare companies' diagnoses, suggested repairs, estimated costs, timeframes, and warranties. Avoid companies that pressure you or demand upfront payment.

Check Credentials

Choose an HVAC company with well-trained technicians who have proper licensing and experience. In all states, HVAC contractors have federal requirements from the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, individuals must pass an exam (the type of exam depends on what kind of equipment they plan to work with). Section 608 certification is required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." All other licensing requirements are handled on a state-by-state basis.

There are no state-level requirements in New Hampshire specifically for HVAC contractors. However, some contractors 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 there are local licensing requirements in your city or municipality. You should also check a company's reviews and complaints on sites such as the Better Business Bureau (BBB), Yelp, and Google Reviews. Pick a company with great feedback and stories of satisfied customers.

Understand Work Details

Always make sure you understand what a company’s process looks like. When getting HVAC repairs, ask your provider to list which parts need replacement and explain why. Confirm that your technician will clean and test your system at the end of the job to ensure proper operation. When replacing your HVAC system, ask the installation company to provide details on the new brand, energy efficiency, estimated installation time, features, and model. Before signing a contract, make sure you understand the process your provider will use to select the correctly sized system for your home and what the cost will be.

Compare Warranties

Good HVAC companies offer warranties on service and equipment installations. The more complete the coverage, the better. Review warranty details between providers and pick the one that offers the most comprehensive protection for the fairest price.

Get Quote in Writing

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