Water Heater Repair in Millis, MA

Hot Water Restored Today

Same-day water heater repair service when you need it most, with upfront pricing and no surprises.

A plumber wearing a blue overall and white t-shirt is smiling as he uses a wrench to work on a water heater mounted on the tiled wall of a bathroom.

We Leave Our Customers Smiling

Ready for 5-Star Level Service?

A person is repairing a water heater, handling a heating element. The heater is mounted on a white tiled wall.

Hot Water Heater Repair Millis

Your Hot Water Problems End Here

You wake up to a cold shower. Your dishwasher won’t clean properly. Your family’s entire routine gets thrown off when your water heater stops working.

We get it. Hot water isn’t a luxury in Massachusetts winters—it’s essential. When your water heater fails, you need someone who can diagnose the real problem quickly and fix it right the first time.

Most water heater issues don’t require a full replacement. A faulty heating element, thermostat problem, or sediment buildup can often be repaired the same day. You get your hot water back without the expense of a new unit, and your daily routine returns to normal.

Millis Water Heater Service

Local Experts You Can Count On

Dempsey Energy has been serving homeowners throughout Norfolk County with reliable HVAC and plumbing services. Our licensed technicians understand the unique challenges of New England homes and the water heater systems that keep them running.

We’ve built our reputation on honest diagnostics and quality repairs. Our team doesn’t push unnecessary replacements—we fix what can be fixed and only recommend replacement when it truly makes financial sense for you.

With over 12,000 customers in our database, we’ve seen every type of water heater problem. That experience means faster diagnosis and more effective solutions for your home.

A plumber in a blue cap and plaid shirt uses a wrench to fix pipes under a sink. He is focused on his task, with gloves on for protection.

Water Heater Repair Process

Simple Process, Reliable Results

When you call us, we schedule a convenient time to assess your water heater. Our technician arrives with the diagnostic tools and common replacement parts needed for most repairs.

First, we test your system to identify the exact problem. Is it a failed heating element? Thermostat issue? Sediment buildup? We explain what we find in plain language, so you understand what’s wrong and why.

Next, we provide an upfront estimate for the repair work. No hidden fees or surprise charges. Most repairs can be completed the same day, getting your hot water flowing again quickly. We test everything thoroughly before we leave to ensure the problem is completely resolved.

A technician in a red cap and uniform, with a yellow shirt, works on piping in a boiler room.

Ready to get started?

Explore More Services

About Dempsey Energy

Get a Free Consultation

Tankless Water Heater Repair

Complete Water Heater Solutions

We service all types of water heaters—traditional tank units, tankless systems, gas, and electric models. Each type has its own common issues, and our technicians are trained to work on all of them effectively.

For traditional tank water heaters, we handle heating element replacement, thermostat repairs, leak fixes, and sediment flushing. Tankless units require different expertise—we service mineral buildup, ignition problems, and flow sensor issues that are unique to these systems.

Many Millis homes have older water heaters that just need proper maintenance to keep running efficiently. We can extend your system’s life with professional cleaning, component replacement, and performance optimization. When replacement is necessary, we help you choose the right size and type for your home’s needs.

A hand grips a wrench to adjust a valve with a red handle in an industrial setting. Copper and metal pipes are visible, showcasing a plumbing or mechanical maintenance task.
Most water heaters can be repaired if they’re under 10 years old and the tank isn’t leaking. Common repairable issues include no hot water, inconsistent temperature, strange noises, or pilot light problems. If your unit is over 12 years old, has a leaking tank, or needs frequent repairs, replacement usually makes more financial sense. We’ll assess your specific situation and give you honest recommendations based on the age, condition, and repair costs versus replacement value.
The most common causes are failed heating elements in electric units or pilot light issues in gas units. Electric water heaters have two heating elements that can burn out over time, while gas units may have thermocouple problems or gas supply issues. Sediment buildup at the bottom of the tank can also prevent proper heating. Most of these issues can be diagnosed quickly and repaired the same day with the right parts and expertise.
Most water heater repairs take 1-3 hours to complete. Simple fixes like replacing a heating element or thermostat can be done in about an hour. More complex issues like flushing sediment buildup or repairing gas connections may take longer. We carry common replacement parts on our trucks, so we can usually complete repairs in a single visit. Emergency repairs get priority scheduling, and we work efficiently to restore your hot water as quickly as possible.
Those noises are typically caused by sediment buildup at the bottom of your tank. Over time, minerals from your water supply settle and harden, creating a barrier between the heating element and water. When the element heats up, it causes the sediment to expand and contract, creating those alarming sounds. This issue can usually be resolved by flushing the tank and removing the sediment buildup. Ignoring it can lead to reduced efficiency and premature failure of your water heater.
We service both tankless and traditional tank water heaters. Tankless units have different maintenance needs and common problems than tank units. They often need descaling to remove mineral buildup, ignition system repairs, or flow sensor cleaning. Our technicians are trained on the specific requirements of tankless systems and carry the specialized tools needed for these repairs. Whether you have a gas or electric tankless unit, we can diagnose and fix the most common issues.
Yes, we provide emergency water heater repair service throughout Millis and Norfolk County. We understand that losing hot water can be more than just inconvenient—it can disrupt your entire household routine. Our emergency service includes evenings and weekends when other companies aren’t available. We prioritize emergency calls and work to restore your hot water as quickly as possible. Emergency service rates may apply for after-hours calls, but we’ll always discuss costs upfront before beginning any work.