Water Heater Replacement& Tankless Installationin Boston
Boston Tank Swap is a small local team that treats every job like it's our own home. We keep things simple, communicate clearly, and make sure your hot water is back on as quickly as possible.
Master Plumber
LIC 16763-PL-M
Hot Water, Wicked Fast
"Boston Tank Swap was fantastic. They replaced our broken water heater incredibly quickly and handled everything with true professionalism. The team cleaned up thoroughly, the work was flawless, and the pricing was very reasonable. Highly recommend them for anyone needing fast, reliable service."
"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!"
"Truly excellent. Our water heater broke, and they were very responsive and got someone over right away to take a look at it. Jason and Steve were very professional and the replacement went very smoothly. I'd definitely recommend them if you have issues with your water heater!"
"I was really pleased with the work they did replacing my tankless heat and hot water combination unit. Very trustworthy group and the installer (Steven) showed me what he was looking at, what the issues were, and we discussed the pros and cons of repair versus replace. They replaced the unit quickly and professionally while I was away at work. I would be completely comfortable having them in my home again and would recommend them to anyone."
Same-Day Hot Water Heater Replacement for Boston Area Homes
Water heater replacement is the core of what we do. Homeowners across Boston, Newton, Cambridge, Somerville, Watertown, and the surrounding communities call us when they need hot water restored fast. Whether your water heater is leaking, has stopped producing hot water, or has simply reached the end of its life, we'll replace it quickly and, in many cases, the very same day.
Looking for something more efficient? We also install high efficiency tankless water heaters for homeowners who want endless hot water, lower energy bills, and a space saving design. If a tankless system is the right fit for your home, we'll explain the options, answer your questions, and make the entire process straightforward from start to finish.
Have a question or want a quick estimate? Text us a photo of your current setup and we'll get back to you with straightforward pricing — no visit required.Send us a photo of your current setup and we'll get back to you with straightforward pricing — no visit required.
Text a Photo for a Quote
Our Hot Water Services
Water Heater Replacement for Boston Homes
Get hot water back fast with professional water heater replacement across Boston and the surrounding neighborhoods. We install gas and electric tank systems, handle permits, and take care of the full swap from start to finish so everything is done cleanly and up to code.
Tankless Water Heater Installation in Boston
Upgrade to tankless for endless hot water and improved efficiency. We install properly sized, fully permitted tankless systems designed for Boston-area homes, with careful attention to venting, gas supply, and long-term reliability.
Recent Water Heater Installations in Boston and Surrounding Towns
A Small Local Company Focused on Doing Things Right
Boston Tank Swap isn't a large franchise or a plumbing company trying to be everything to everyone.
We specialize in water heaters, tankless systems, and select boiler upgrades, allowing us to provide faster response times, clear communication, and a more consistent installation experience for homeowners throughout Greater Boston.
Every installation is overseen by a licensed Master Plumber (LIC 16763-PL-M), and we take pride in treating customers the way we'd want our own families treated.
Hot Water, Wicked Fast. That's our promise on every job.
Heat Pump Water Heater Installation in Boston
For homeowners in Boston looking to reduce energy use and lower utility costs, heat pump water heater installation is becoming an increasingly popular option. These high-efficiency systems use ambient air to heat water and can significantly reduce electricity consumption compared to standard electric tanks.
Boston Tank Swap installs heat pump water heaters throughout Boston and nearby areas, helping homeowners take advantage of Mass Save rebates of $750 for standard units and up to $1,500 for qualifying split-system models. See our 2026 Massachusetts rebates and incentives guide for the full breakdown, including the Mass Save HEAT Loan (0% interest financing up to $25,000) and what changed after the federal 25C tax credit expired on December 31, 2025.
- Lower operating costs (roughly one-third the electricity of a standard electric tank)
- Eligible for Mass Save rebates up to $1,500 and 0% HEAT Loan financing
- Ideal for basements and utility spaces with proper airflow
If you're considering a more energy-efficient upgrade, we can walk you through whether a heat pump water heater installation makes sense for your home and help you navigate the current Mass Save rebate programs for 2026.
Proudly Serving
Including South Boston, Beacon Hill, North End, Back Bay, Seaport, Fenway, Downtown Boston, Chinatown, East Boston, and more Boston neighborhoods.
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 & AgeFAQ's About Water Heater Replacement and Repair
Do you offer same-day water heater installation in the Boston area?
Yes. Boston Tank Swap specializes in fast water heater replacement in Newton and across all of Greater Boston. When your water heater fails, we understand you need hot water restored quickly. We can often offer same-day or next-day service to get your hot water back up and running.
What are the signs my water heater needs to be replaced?
The most common warning signs include rusty or discolored hot water, rumbling or popping noises from the tank, water pooling around the base of the unit, inconsistent water temperature, and a unit that is more than 10 years old. If you notice any of these issues, it is worth having a licensed plumber inspect the system before a small problem turns into a major leak or flood.
How much does tankless water heater installation cost in Boston?
Tankless water heater installation in Boston is typically more expensive than standard tank replacement due to additional requirements like gas line upgrades, venting, and system configuration. Costs can vary significantly depending on your home and existing setup.
If you want a more accurate estimate for your home, you can check typical pricing ranges or send us a photo of your current system for a fast quote.
Should I switch from a tank water heater to a tankless system?
Tankless water heaters provide continuous hot water on demand, take up far less space, and can last 15 to 20 years compared to 8 to 12 years for a traditional tank. They are an excellent choice for Boston homes with high hot water demand or limited mechanical room space, and are also becoming a popular option for homeowners considering tankless installation in Cambridge and nearby towns throughout Greater Boston. However, they require adequate gas line sizing and proper venting. Our plumbers evaluate your home to determine whether a tankless upgrade is the right fit.
What water heater brands do you install?
Do you offer commercial water heater replacement?
Yes. We serve businesses, multi-family buildings, and property managers throughout Greater Boston. Learn more about our commercial water heater replacement in Boston.
What warranty do you provide on water heater installations?
Do you service boilers?
Yes. While Boston Tank Swap focuses primarily on water heater replacement and installation, we also service and replace boilers for homeowners throughout Greater Boston. Many customers reach out for boiler replacement in Boston when their existing system becomes unreliable, inefficient, or starts showing signs of failure.
For homes that use combination systems for both heating and hot water, we also handle high-efficiency combi boiler installation in Cambridge and nearby communities, helping homeowners upgrade to more compact and energy-efficient systems.
Still have questions about your water heater replacement or installation?
Call Now for Expert AdviceCurrent Pricing
Looking for current pricing? View typical water heater replacement cost in Boston.
Looking to replace your boiler? View typical boiler replacement cost in Boston.