AC Repair in Wrentham, MA

Your AC Fixed Right, Fast

When your air conditioning breaks down, you need it fixed now—not next week.

A construction worker wearing a white hard hat and black gloves is installing or repairing a ceiling air conditioning unit in a modern building. He is standing on a ladder and looking at the camera.

We Leave Our Customers Smiling

Ready for 5-Star Level Service?

A construction worker in a blue hard hat and plaid shirt uses a screwdriver to fix an outdoor unit, possibly an air conditioner, against a building backdrop.

Professional Air Conditioning Repair Services

Cool Comfort When You Need It

Your AC should work when you flip the switch. No weird noises, no warm air, no constant cycling on and off.

That’s what you get when the repair is done right. Your home stays comfortable even when it’s 90 degrees outside. You sleep through the night without waking up sweating. Your energy bills stay reasonable because your system runs efficiently instead of struggling.

When your air conditioner gets the attention it needs from someone who knows what they’re doing, it just works. Quietly, consistently, reliably. The way it’s supposed to.

Trusted HVAC Repair Wrentham

We Know AC Systems Inside Out

Dempsey Energy has been keeping Wrentham homes comfortable for years. We’ve built relationships with over 12,000 customers who trust us with their heating and cooling needs.

What sets us apart is our approach to customer service. We track every job, follow up to make sure you’re satisfied, and offer our Dempsey Comfort Club membership program to keep your system running smoothly year-round.

We’re not just passing through town looking for quick jobs. This is our community, and our reputation depends on doing right by our neighbors.

A technician wearing a yellow hard hat and blue shirt is repairing or installing a wall-mounted air conditioning unit.

AC Repair Process Wrentham

Here's How We Fix Your AC

First, we listen to what’s happening with your system. Strange sounds, poor cooling, high bills—whatever brought you to pick up the phone.

Then we diagnose the actual problem. Not what we think it might be, but what’s really wrong. We test components, check refrigerant levels, examine electrical connections, and look at airflow patterns.

Once we know what needs fixing, we explain it in plain terms. What’s broken, why it broke, what it takes to fix it properly. Then we get to work with the right parts and tools to solve the problem for good.

A maintenance worker in blue overalls and gloves inspects an outdoor HVAC unit on a rooftop. He holds a clipboard and appears to be taking notes.

Ready to get started?

Explore More Services

About Dempsey Energy

Get a Free Consultation

Complete AC Repair Services

Every AC Problem, One Solution

Whether your AC won’t turn on, isn’t cooling properly, or is making sounds that keep you awake at night, we handle it all. Compressor failures, refrigerant leaks, electrical issues, frozen coils, thermostat problems—we’ve seen it and fixed it.

We work on all major brands and system types. Central air, ductless mini-splits, heat pumps. Older units that need careful attention and newer systems still under warranty.

Our service includes thorough testing after repairs to make sure everything works as it should. You’re not paying for a band-aid fix that fails next month. You’re getting a repair that restores your system to reliable operation.

A man in overalls stands on a ladder fixing or installing an air conditioner mounted on a wall.
Response time depends on the day and current service load, but we prioritize emergency calls, especially during heat waves. We understand that a broken AC isn’t just inconvenient—it can be dangerous for elderly family members, young children, or anyone with health conditions. When you call, we’ll give you an honest timeframe and keep you updated if anything changes. Our goal is same-day service for urgent repairs whenever possible.
Poor cooling usually comes down to a few common issues. Low refrigerant from a leak somewhere in the system. Dirty evaporator or condenser coils that can’t transfer heat properly. A failing compressor that can’t move refrigerant effectively. Blocked airflow from dirty filters or ductwork problems. Sometimes it’s a simple thermostat calibration issue. The key is proper diagnosis—guessing leads to unnecessary repairs and frustrated customers.
It depends on the specific problem, the age of your system, and your budget. If your AC is under 10 years old and the repair cost is reasonable, fixing it usually makes sense. For systems over 15 years old with major component failures, replacement might be more cost-effective long-term. We’ll give you honest advice about both options, including repair costs versus replacement benefits, so you can make the decision that’s right for your situation.
Recurring problems usually indicate an underlying issue that hasn’t been properly addressed. Maybe previous repairs only treated symptoms instead of root causes. Or your system is undersized for your home and works too hard. Dirty coils, old ductwork, or electrical problems can also cause repeated failures. Regular maintenance catches these issues before they become expensive breakdowns, which is why we offer our Comfort Club membership program.
Repair costs vary widely depending on what’s actually wrong with your system. Simple fixes like thermostat issues or dirty filters cost much less than major component replacements. We provide upfront estimates before starting work, so you know what you’re paying before we touch your system. We don’t believe in surprise charges or pressure tactics—just honest pricing for quality work that fixes the problem right.
Yes, we stand behind our repair work with warranties on both parts and labor. The specific warranty terms depend on the type of repair and components involved, but we want you to have confidence that the job was done right. If something goes wrong with our repair work, we’ll make it right. That’s part of building long-term relationships with customers instead of just collecting payment and moving on.