HVAC Contractor in Wareham, MA

Your Heating Stops Working at 2 AM

We answer the phone and fix it fast, so you don’t freeze waiting for “normal business hours.”

We Leave Our Customers Smiling

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Professional HVAC Services Wareham

What Working Heat and AC Actually Means

You wake up comfortable every morning, no matter what the weather did overnight. Your energy bills stay predictable instead of spiking every month because your system actually runs efficiently.

When something does go wrong, you have a local number to call that someone answers. Not a call center three states away, not a voicemail that gets returned “within 24-48 hours.” A real person who knows your area and can be there the same day.

Your family stays comfortable year-round, and you stop worrying about whether your heating system will make it through another Massachusetts winter or if your AC can handle another humid summer.

Trusted Wareham HVAC Company

We've Been Keeping Wareham Comfortable

Dempsey Energy has built relationships with over 12,000 customers throughout Plymouth County by showing up when we say we will and fixing things right the first time. We’re not the company that gives you a four-hour window and shows up the next day.

We handle both HVAC and plumbing services, so when you need us, you get everything fixed by one crew instead of juggling multiple contractors. Our Dempsey Comfort Club membership program keeps your systems running smoothly with regular maintenance, because preventing problems beats fixing emergencies.

HVAC Repair Process Wareham

Here's Exactly What Happens When You Call

You call our local number, and we answer. We ask about your problem and schedule a time that works for you, often the same day for urgent issues. No phone tag, no waiting for callbacks.

Our technician arrives on time and diagnoses the issue completely before recommending any work. You get a clear explanation of what’s wrong and what it’ll cost to fix it. No surprise charges, no “we found three more problems” after we’re already there.

We fix the problem with quality parts and test everything to make sure it’s working properly. You get comfortable temperatures in your home and peace of mind that the repair will last.

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Complete HVAC Services Massachusetts

Everything Your Home's Comfort Systems Need

We handle emergency repairs when your system breaks down, planned installations when you need new equipment, and regular maintenance to prevent problems before they start. Whether your heating system won’t turn on, your AC is blowing hot air, or you need a complete system replacement.

Living near the coast in Wareham means your HVAC equipment deals with salt air, humidity, and temperature swings that can be tough on systems. We understand how these conditions affect your equipment and recommend solutions that actually work in this environment.

Our Dempsey Comfort Club membership includes regular tune-ups and priority service, so your systems get the attention they need to run efficiently and last longer. Members get first priority when emergencies happen.

How quickly can you respond to emergency HVAC calls in Wareham?

We prioritize emergency calls and aim for same-day service whenever possible, especially during extreme weather when your heating or cooling system failure affects your family’s safety and comfort. Our local presence in the Wareham area means shorter travel times compared to companies based further away. We answer our phones directly rather than routing calls through distant call centers, so you can reach us quickly when you need immediate help. During peak seasons like winter cold snaps or summer heat waves, we extend our hours and add crew availability to handle the increased demand for emergency repairs.

What should I do if my heating system won't turn on?

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 your circuit breaker to ensure the HVAC system hasn’t tripped a breaker, and replace your air filter if it’s visibly dirty or hasn’t been changed in months. If these basic steps don’t solve the problem, call us rather than attempting more complex troubleshooting yourself. Modern heating systems have safety features that shut them down when something’s wrong, and trying to override these safeties can create dangerous situations or cause more expensive damage to your equipment.

Why is my air conditioner blowing hot air instead of cold?

This usually indicates a problem with your refrigerant levels, a malfunctioning compressor, or issues with your system’s electrical components. Low refrigerant often means there’s a leak somewhere in the system that needs professional repair, not just a simple “top-off” of coolant. Sometimes the issue is a dirty outdoor unit that can’t release heat properly, or a frozen evaporator coil caused by restricted airflow. These problems require professional diagnosis because the underlying cause needs to be identified and fixed, not just the symptoms. Continuing to run an AC that’s blowing hot air can damage expensive components like the compressor.

How often should I schedule maintenance for my HVAC system?

Most systems need professional maintenance twice a year – once before the heating season and once before the cooling season. This timing allows us to catch potential problems before you’re depending on the system during extreme weather. Regular maintenance includes cleaning components, checking refrigerant levels, testing electrical connections, and replacing filters. Wareham’s coastal environment can be particularly hard on HVAC equipment due to salt air and humidity, so consistent maintenance becomes even more important for preventing corrosion and extending equipment life. Our Dempsey Comfort Club members get scheduled maintenance reminders and priority booking for these tune-ups.

What's included in your Dempsey Comfort Club membership program?

Members receive scheduled maintenance visits for their heating and cooling systems, priority scheduling when they need repairs, and discounts on parts and labor. The membership includes comprehensive system inspections, filter changes, and performance testing to keep your equipment running efficiently. Members also get first priority during emergency situations, which means faster response times when your system breaks down during peak demand periods. The program is designed to prevent expensive breakdowns through regular maintenance while providing cost savings on any repairs that do become necessary. We track your equipment history and maintenance schedule, so you don’t have to remember when service is due.

Do you provide estimates before starting any HVAC repair work?

Yes, we always diagnose the problem completely and provide a clear estimate before beginning any repair work. You’ll know exactly what’s wrong with your system, what we recommend to fix it, and what the total cost will be before we start. We don’t believe in surprise charges or discovering “additional problems” after we’ve already started working. If we find multiple issues during our diagnosis, we’ll prioritize them and explain which repairs are urgent versus which ones can wait. This approach lets you make informed decisions about your repairs and plan your budget accordingly, rather than feeling pressured into unexpected expenses.

Local Resources

Wareham, MA is located in Plymouth County in Massachusetts State