HVAC Contractor in Franklin, MA

Your Heating and Cooling Works When You Need It

Fast response times, reliable repairs, and honest service from Franklin’s trusted HVAC contractor with 12,000+ satisfied customers.

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Franklin HVAC Services

What You Get When Everything Works Right

Your house stays comfortable year-round without the stress of wondering if your system will fail. No more waking up to a freezing house in January or sweating through July nights because your AC gave out.

You get predictable monthly energy bills instead of watching them spike because your system is working twice as hard to do half the job. Your HVAC system runs quietly in the background, doing its job without demanding your attention every few months.

When you do need service, you get technicians who show up on time, explain what’s wrong in plain English, and fix it right the first time. No surprises, no runaround, no wondering if you’re getting taken advantage of.

Best HVAC Company Franklin

We've Been Keeping Franklin Comfortable for Years

Dempsey Energy has built a reputation in Franklin by doing the work right and treating customers fairly. We’ve served over 12,000 customers throughout the area, and most of our business comes from referrals and repeat customers.

We’re not the fly-by-night contractors who disappear after a job. We’re here when your system needs maintenance, when emergencies happen, and when it’s time to replace that old furnace that’s been limping along for too many winters.

Our Dempsey Comfort Club membership program shows we’re committed to long-term relationships, not just quick fixes. We use professional systems to track service history and follow up with customers because we actually care about how your system performs after we leave.

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HVAC Contractor Near You

Here's How We Handle Your HVAC Issues

You call us with a problem, and we schedule a time that works for you. Our technician shows up when promised, diagnoses the issue, and explains what’s wrong in terms you can understand.

Before any work starts, you get a clear explanation of what needs to be done and what it will cost. No surprises, no hidden fees, no pressure tactics. If it’s an emergency, we focus on getting your system running safely and efficiently as quickly as possible.

After the work is done, we test everything to make sure it’s working properly and clean up our work area. We’ll also let you know if we spot any potential issues that might need attention down the road, so you can plan ahead instead of dealing with emergency breakdowns.

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Heating Contractor Franklin MA

Complete HVAC Services for Franklin Homes

We handle everything from emergency repairs when your system stops working to complete system replacements when it’s time for an upgrade. Regular maintenance keeps your system running efficiently and catches small problems before they become expensive emergencies.

Franklin’s weather puts real demands on HVAC systems. Those February cold snaps and July heat waves test every component. We know which systems hold up best in our climate and which parts typically fail first in older homes.

Our service includes honest assessments of whether repair or replacement makes more sense for your situation. Sometimes a repair gets you through another few years. Sometimes continuing to patch an old system just wastes your money. We’ll tell you which situation you’re in and why.

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We prioritize emergency calls, especially during extreme weather when heating or cooling failures can be dangerous or extremely uncomfortable. Response times depend on current call volume and weather conditions, but we understand that a broken furnace in January or failed AC in July can’t wait. We’ll give you an honest timeframe when you call and keep you updated if anything changes. Our goal is to get your system running safely as quickly as possible.
First, check your thermostat settings and make sure it’s set to heat mode with the temperature set higher than the current room temperature. Check that your circuit breaker hasn’t tripped and that your furnace switch is on. If you have a gas furnace, make sure the pilot light is lit. If these basic checks don’t solve the problem, don’t try to force the system to work. Call us for professional diagnosis. Heating systems have safety features that shut them down when something’s wrong, and bypassing these can be dangerous.
This usually means your air conditioning isn’t working, but the fan is still running. Common causes include a tripped circuit breaker for the outdoor unit, a dirty air filter restricting airflow, low refrigerant levels, or a failed component in the outdoor condenser unit. Sometimes it’s a simple fix like resetting a breaker or changing a filter. Other times it requires professional repair. Don’t ignore this problem – running the system when it’s not cooling properly can cause more expensive damage to the compressor.
Most systems benefit from professional maintenance twice a year – once before the heating season and once before cooling season. Franklin’s climate puts systems through their paces with cold winters and hot summers, so regular maintenance helps catch problems before they cause breakdowns during peak usage times. During maintenance, we clean components, check refrigerant levels, test safety features, and identify parts that might need attention soon. This prevents most emergency calls and keeps your system running efficiently.
Every service call starts with a thorough diagnosis to identify the actual problem, not just the symptoms. We explain what we found, what caused it, and what options you have to fix it. The repair work includes testing to make sure everything is working properly and safely. We clean up our work area and dispose of any old parts. You’ll also get information about what to watch for and any maintenance that might help prevent similar problems. Our goal is to solve the current issue and help you avoid future breakdowns.
Several factors help determine this: the age of your system, frequency of repairs, efficiency, and repair costs compared to replacement costs. If your system is over 15 years old, needs frequent repairs, or has repair costs approaching half the price of replacement, it’s usually time to consider upgrading. We’ll give you an honest assessment of your system’s condition and help you understand the long-term costs of continuing repairs versus investing in a new system. Sometimes a repair makes perfect sense. Sometimes it’s just throwing money at a system that’s reached the end of its useful life.