Leader in the Massachusetts Home Service Industry since 1992
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If you’re searching for Chelmsford MA water heater replacement, there’s a good chance your current system has failed — or it’s close. No hot water. Leaks at the base of the tank. Rust in your water. Or a unit that’s over 10 years old and struggling to keep up.
At 128 Plumbing, Heating, Cooling & Electric, we provide professional water heater replacement in Chelmsford and surrounding towns. We’ve been serving Massachusetts homeowners since 1992, and our headquarters is right here in Chelmsford.
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Here is a quick list of the top heating services we offer:
Signs You Need Water Heater Replacement
Some issues can be repaired. Others mean it’s time for a new system.
You may need water heater replacement if:
- Your unit is 10+ years old
- The tank is leaking from the bottom
- You’re running out of hot water quickly
- Water is rusty or discolored
- Repairs are becoming frequent
- Energy bills are rising
Traditional tank water heaters typically last 8–12 years. Tankless systems can last 15–20 years with proper maintenance. If your system is near the end of its lifespan, replacement often makes more financial sense than ongoing repairs.
According to the U.S. Department of Energy, water heating makes up roughly 18% of home energy use. A new, high-efficiency system can help reduce operating costs.
Water Heater Installation Options in Chelmsford, MA
We install systems sized properly for your home and usage needs.
Tank Water Heater Replacement
We install gas and electric tank water heaters in various sizes. A properly sized tank ensures consistent hot water for showers, laundry, and dishwashing.
Tankless Water Heater Installation
Tankless systems heat water on demand. They are compact, energy-efficient, and provide continuous hot water. We assess your home’s plumbing and gas or electrical capacity to determine if tankless is the right fit.
We’ll walk you through the pros and cons of each option so you can make a clear decision.
What to Expect During Water Heater Replacement
When you schedule water heater replacement in Chelmsford, here’s what we do:
- Inspect your existing system
- Confirm sizing and fuel type
- Provide upfront pricing
- Remove and dispose of your old unit
- Install and test the new system
- Ensure everything meets Massachusetts code
Our trucks are stocked to complete most installations in a single visit.
Why Choose 128 for your Water Heater Replacement in Chelmsford, MA?
We’re A Proud Heat Pump Installer of Mass Save®
We’ve helped thousands of homeowners learn about Mass Save financing and rebates. Call or message us now to learn about the process.
Official Home Services Company of the Boston Red Sox
We are proud to say that we’re the first ever Official Home Services Company of the Boston Red Sox!
Ask about our loyalty program: base+ membership
Our whole-home loyalty membership allows for exclusive visits & benefits, SmartHome access, and peace of mind for your plumbing, HVAC, and electrical services from attic to basement
Frequently Asked Questions
How long does water heater replacement take?
Most standard tank replacements can be completed in a few hours. Tankless installations may take longer depending on plumbing or gas line adjustments.
How do I know what size water heater I need?
Sizing depends on household size, number of bathrooms, and peak water usage. We calculate proper capacity to avoid running out of hot water.
Should I choose tank or tankless?
Tank systems cost less upfront and work well for many homes. Tankless systems offer higher efficiency and endless hot water but may require system upgrades. We’ll help you compare both.
Do you remove the old water heater?
Yes. We disconnect, remove, and properly dispose of your old unit as part of the replacement service.
Are there rebates available for water heater replacement in Massachusetts?
In some cases, energy-efficient systems may qualify for rebates or incentives. We can explain available programs during your estimate.
What causes a water heater to fail?
Age, sediment buildup, corrosion, and worn internal components are the most common causes. Once the tank itself corrodes and leaks, replacement is required.
Do you serve areas outside Chelmsford?
Yes. In addition to Chelmsford, we provide water heater replacement services in nearby communities such as Lowell, Dracut, and Billerica. Visit our areas we serve page for the full list.
If your water heater is leaking, unreliable, or over a decade old, don’t wait for a full failure. Call for professional water heater replacement in Chelmsford, MA.
We have 3 locations across Massachusetts
Our Wakefield, MA Location
78 Foundry St, Wakefield, MA 01880
Our North Andover, MA Location
3 Johnson St, North Andover, MA 01845
Our Chelmsford, MA Location
80 Brick Kiln Rd, Chelmsford, MA 01824
Being local means faster response times and technicians who understand Chelmsford homes, HVAC systems, and their demands.

