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Last Updated: February 25, 2025
On average, 55% of the energy used in American homes is for heating and cooling, according to the U.S. Department of Energy. Energy costs in Marlborough tend to be higher than in some other places, which means you're probably trying to save money on your bill.
Our guide to the top HVAC companies in Marlborough can help you save money by getting your HVAC system repaired, installed or replaced for a fair price by a skilled worker.

Our Rating
User Rating
Clear pricing policy
Reliable customer support
Free quotes
Services Offered

Our Rating
User Rating
Prompt service delivery
Informative resources
Reliable customer support
Clear pricing policy
Services Offered

Our Rating
User Rating
Clear pricing policy
Prompt service delivery
Informative resources
Free quotes
Reliable customer support
Services Offered

Our Rating
User Rating
Reliable customer support
Free quotes
Informative resources
Clear pricing policy
Prompt service delivery
Services Offered

Our Rating
User Rating
Informative resources
Clear pricing policy
Reliable customer support
Free quotes
Services Offered

Our Rating
User Rating
Reliable customer support
Informative resources
Clear pricing policy
Prompt service delivery
Services Offered

Our Rating
User Rating
Informative resources
Reliable customer support
Free quotes
Clear pricing policy
Prompt service delivery
Services Offered

Our Rating
User Rating
Free quotes
Prompt service delivery
Services Offered

Our Rating
User Rating
Clear pricing policy
Informative resources
Reliable customer support
Free quote
Prompt service delivery
Services Offered

Our Rating
User Rating
Reliable customer support
Prompt service delivery
Clear pricing policy
Services Offered
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:
If your HVAC system is broken or getting old, it likely needs repairs or replacement from an HVAC company. Look for these indicators your system needs service:
Schedule an inspection if you notice any of these issues. A local technician can inspect your system, detect problems, and decide whether you need to fix or replace your HVAC.
HVAC installation or maintenance prices vary depending on your system. Common HVAC unit types include the following:
HVAC maintenance prices vary based on the services needed. HVAC systems are complex and may need a number of types of maintenance. Costs for common jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $2,072-$5,282 | |
| Hybrid Split | $4,198-$7,734 | |
| Heat Pump | $3,251-$33,122 | |
| Packaged Heating and Air | $272-$453 |
Fixing your HVAC by repairing or replacing parts when needed is important, but can be costly. Fortunately, there are actions you can take to reduce gradual wear and tear on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $68-$181 | |
| Condensor Cleaning | $1,360-$4,080 | |
| Thermostat Repair | $91-$227 | |
| Ductwork Cleaning | $435-$1,088 |
Finding the right HVAC company is key for a successful installation or repair. An experienced, credentialed HVAC contractor gives you confidence your system can provide reliable heating and air conditioning year-round.
Request estimates from three or more HVAC providers. Explain your issues and ask if technicians can inspect your system in person. Review each contractor's diagnoses, recommended solutions, estimated cost, warranties, and timeline. Avoid providers that pressure you or demand payment before work.
Look for an HVAC company that employs skilled technicians with the necessary licensure and training. In all states, HVAC contractors must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required for any individual who helps "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." Contractors must pass an exam (the type of exam depends on the type 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.
There are no state-level licensing requirements for HVAC technicians in Massachusetts. However, HVAC technicians who work on certain cooling jobs may need a Refrigeration Technician License for larger projects.
It's also a good idea to check with your city or municipal government to find out if HVAC contractors have any local licensing requirements. You should also check a provider's reviews and complaints with organizations such as Google Reviews, Yelp, and the Better Business Bureau (BBB). Look for a a provider with glowing reviews and stories of positive service experiences.
Always make sure you know what a company’s process looks like. When getting HVAC repairs, ask your provider to explain which parts require replacement and explain why. Confirm that your technician will clean and test your system after finishing the work to ensure proper operation. For replacement, ask your contractor to explain the new HVAC system energy efficiency, features, brand, model, and estimated installation time. 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.
Reputable HVAC companies back their work with warranties. Look at warranties from different companies, bearing in mind that broader coverage is better. Look for the company that provides the most coverage for a reasonable price.
Get written estimates before starting any HVAC work. The quote should outline costs for both materials and labor. Read all terms carefully before signing.
You should have your HVAC system inspected twice a year. Following an inspection, your technician will inform you what services are required. You should also schedule an inspection if you notice new issues such as strange noises, unusual smells, or leaks. If your system has ductwork, you should have it inspected every few years.
Generally, you should schedule inspections in the spring and fall, as technicians tend to be less busy at these times. This also helps get your system ready for the summer and winter, when it typically sees the most use.
You can save energy throughout the year by reducing the amount of work it takes for your HVAC system to maintain the temperature of your home. Always keep your thermostat as close to the outside temperature as possible, and avoid making drastic changes — adjust it only a few degrees at a time. You might also consider getting a smart thermostat.
Generally, whole-system HVAC installation or replacement takes between one and three days. Installing or replacing a furnace or air conditioning unit takes anywhere from about half a day up to two days. The exact amount of time will be based on things like the size of your house, how easily accessible different areas are, and whether your technician discovers any problems.
For a 2,000-square-foot home, you'll want a furnace that's between 50,000 and 80,000 BTUs (British thermal units).
For a 2,000-square-foot home, you'll also want to look for an air conditioning unit with around 2.5 to 5 tons of capacity. Generally, if your home is larger than 1,000 square feet, central air will be more effective than window air conditioning units.
Your HVAC company might offer financing options via a third-party lender, or you may be able to obtain a loan on your own. It's a good idea to discuss payment options with your HVAC company and a financial advisor to make sure that you find the best option for you.
There are several ways you can make your HVAC system more energy-efficient:
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