Water Heater Repair& Replacement Servicesin Lexington, MA
When your water heater stops working, you usually just want it fixed fast. We help Lexington homeowners sort out whether it can be repaired or if it's time to replace it, and we handle everything from standard tanks to modern tankless systems.
"Boston Tank Swap made everything very easy. They replaced a leaking tank, coordinated with my tenants, and sent...""Boston Tank Swap made everything very easy. They replaced a leaking tank, coordinated with my tenants, and sent before-and-after photos — very professional"— Stefan Repac
"Boston Tank Swap made everything very easy. They replaced a leaking tank, coordinated with my tenants, and sent before-and-after photos — very professional"
"Fast, professional, and honest. Everything was clean and clearly explained. Would 100% recommend."
"Called us back within an hour. Got it resolved the same day, two days before Christmas. Will definitely work with them again."
"We had an unexpected leak from our tank on a weekend. The team was responsive and able to provide weekend service and saved us a big headache. They were kind and professional… and we have hot water back less than 24 hours later. Thank you!"
"Boston Tank Swap upgraded us to a Navien tankless and the unlimited hot water has been amazing. Great service and David was very easy to work with!"
"Our old water heater finally gave out, I was recommended to boston tank swap by a friend that just went through a leaking tank emergency as well. Dave was polite, clean, and took the time to explain everything without any upselling or pressure. You can tell they actually care about doing things right. The price was fair, and the whole experience was stress-free. Total time without hot water was less than 24 hours. It's nice to find an honest local plumber in Newton who still answers the phone and shows up when they say they will. Highly recommend!"
Water Heater Repair & Replacement Available Today in Lexington
Hot water problems are pretty common in Lexington homes, especially with older systems. Sometimes it's a quick fix, but in many cases a failing unit is better replaced than repaired. We help you figure out what makes sense and get your hot water back the same day, whether that means a simple solution or a full system upgrade.
Water Heater Replacement in Lexington, MA
Same-day water heater replacement in Lexington, MA. We handle gas and electric installations, permits, and removal of your old unit.
Why Lexington homeowners choose tank water heaters:
- Reliable hot water for everyday use
- Lower upfront cost than tankless
- Proven performance in older homes
Our hot water heater replacement in Lexington service includes:
- Licensed gas & electric tank installation
- Proper sizing for your household
- Venting, permits & inspections handled
- Old unit removal & disposal
Every install meets Lexington inspection standards with clean, code-compliant work.
Tankless Water Heater Installation in Lexington, MA
Professional tankless water heater installation in Lexington, MA. We design and install fully permitted systems sized for your home.
Why Lexington homeowners go tankless:
- Endless hot water on demand
- Better energy efficiency
- Compact, wall-mounted design
Our tankless service includes:
- Navien, Noritz & Rinnai installations
- System sizing matched to your usage
- Gas, venting & permits handled
- Clean, detail-focused work
Proper sizing and venting matter — we install tankless systems the right way so they perform as intended.
Recent Water Heater Installations
When to Repair vs. Replace Your Water Heater in Lexington
Lexington's housing stock leans heavily toward larger single-family homes built across several decades. Many have multi-bathroom layouts that put real demand on water heaters, and basements that haven't been touched since the original install. When something goes wrong, the first question is usually whether it makes sense to repair or replace.
Here's what we typically see in Lexington:
- Tanks over 10-12 years old with leaks or corrosion — replacement is almost always the better call
- Lukewarm showers or running out of hot water during back-to-back use — often a sizing or capacity issue
- Rumbling, popping, or banging sounds from the tank — sediment buildup that signals the unit is wearing out
- A minor part failure on a newer unit — sometimes a repair makes sense, and we'll tell you honestly
We show up with the equipment to handle it either way. If it's a repair, we'll take care of it. If replacement is the smarter move, we carry Bradford White tanks and can also install Navien, Noritz, and Rinnai tankless systems. Tank replacements are typically same-day.
Every Lexington installation is overseen by a licensed Master Plumber (LIC 16763-PL-M).
We handle old unit disposal and make sure everything is done to code. Call or text to schedule.
Also available in Lexington: Boiler and combi boiler installation. If your home uses a boiler for heating, Boston Tank Swap handles full replacements, Navien combi boiler installs, permits, and inspections. Learn about our boiler services →
Service Areas in Lexington
Neighborhoods We Serve:
ZIP Codes:
02420, 02421
Water tank installer you can trust
About Lexington
Proudly serving the Lexington community with local expertise
Lexington is the birthplace of American liberty where the first shot of the Revolutionary War was fired
The Battle Green is the historic site where Minutemen faced British troops on April 19, 1775
Lexington consistently ranks as one of the best school districts in Massachusetts
Not Sure How Old Your Water Heater Is?
Use our free age checker tool to find out the age of your water heater and check if the warranty is still active.
Check Your Water Heater Warranty & AgeWater Heater Questions for Lexington Residents
How do I know if my hot water heater needs replacement in Lexington?
Common warning signs include inconsistent hot water, visible leaks, rust-colored water, unusual noises, and units nearing the end of their expected lifespan. Older systems often become less reliable and more prone to failure over time.
How long does a water heater replacement take?
Most standard water heater replacements can typically be completed in a single visit. The exact timeframe depends on the system type, installation conditions, and any necessary safety or code upgrades.
Do you serve areas outside of Lexington?
Yes. While we specialize in water heater replacement in Lexington, our team is based in Boston and serves homeowners throughout the surrounding communities. As a Boston-based water heater company, we handle installations and replacements across Greater Boston, including nearby towns like Arlington, Belmont, Bedford, and Burlington.
Can a water heater be repaired instead of replaced?
Some water heater problems involve replaceable components such as heating elements, thermostats, or valves. However, tank leaks, internal corrosion, and aging systems often make replacement the more reliable long-term solution.
Is it worth repairing an older hot water heater in Lexington?
It depends on the age of the unit and the nature of the issue. While minor component failures may sometimes be evaluated, older systems frequently experience recurring problems, making replacement the more cost-effective option over time.
Should I repair or replace my water heater in Lexington?
The decision typically depends on the unit's age, severity of the issue, and long-term reliability considerations. Newer systems with isolated component problems may sometimes be assessed, while older units or tanks showing signs of leakage usually require replacement.
Ready to schedule your water heater service in Lexington?
Call (617) 849-9929 NowNearby Service Areas
Boston Tank Swap frequently works with homeowners and property managers in Arlington, Belmont, Bedford, and Burlington.