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Tankless Water Heater Installation in Lexington, MA

Tankless Water Heater Installation in Lexington, MA. Sedona Plumbing dispatches from Winchester — Master Plumber licensed, Mass Save registered. Call (781)…

Tankless Water Heater Installation in Lexington, MA

Lexington’s 1950s-1980s single-family homes on larger lots are prime candidates for full equipment replacement. Lexington is one of our most active Mass Save Heat Pump conversion markets. For tankless installs specifically, Lexington homeowners typically come to us for one of two reasons: their existing 50-gallon tank is finally giving out and they want endless hot water this time, or they’re planning a kitchen and bath renovation that will demand more hot water than the existing tank can supply.

Tankless Water Heater Brands We Install

Navien: Our most-installed tankless brand. Premium condensing units with built-in recirculation and lifetime heat exchanger warranties on premium models.

Rinnai: Long-time tankless leader with proven cold-climate performance.

Rheem: Strong mid-tier option with excellent serviceability.

AO Smith: Reliable tankless option with broad parts availability.

What’s Included in Tankless Installation

Pulling and disposing of the existing tank water heater. Resizing the gas line if necessary — most existing 1/2″ gas lines are too small for tankless and need to be upgraded to 3/4″ or 1″. Installing the new tankless unit on the wall with proper structural support. Running new vent to the exterior. Installing condensate drain and isolation valves. Pressure-testing the gas line. Pulling all required permits. Commissioning the unit.

Mass Save Rebates and Financing

Lexington homeowners qualify for Mass Save rebates on high-efficiency tankless water heaters. We are a registered Mass Save installer and handle the rebate paperwork. 0% HEAT Loan financing is available.

Why Choose Sedona for Tankless Installation in Lexington

Local dispatch from Winchester. 15-20 minutes from our shop to most Lexington addresses.

Master Plumber and licensed gas fitter. Tankless installs require gas line resizing. Veteran-owned, fully insured, .

Authorized installer for Navien, Rheem, Rinnai, AO Smith. Manufacturer warranties stay valid.

Upfront flat-rate pricing. Detailed written quote before work starts.

24/7 emergency response in Lexington.

Areas We Serve Near Lexington

Beyond Lexington, we install tankless water heaters in Winchester, Arlington, Burlington, Bedford, Concord and surrounding communities.

Frequently Asked Questions about Tankless Installation in Lexington

How long does tankless water heater installation take in Lexington?

A standard tankless install (replacing an existing tank, gas line already correctly sized) takes about a full day. If the gas line needs resizing, add 4-8 hours.

Will a tankless really give me unlimited hot water?

Yes — but with a flow-rate limit. A typical residential tankless unit (180,000-199,000 BTU) supplies about 7-9 GPM in our New England climate. That’s enough for 2-3 simultaneous showers in most Lexington homes. For larger demand, we install paired tankless units.

How long does a tankless water heater last?

15-20+ years with annual descaling, vs 8-12 for a typical tank.

Can I qualify for Mass Save rebates on tankless in Lexington?

Yes — high-efficiency tankless water heaters qualify for Mass Save rebates. We handle the rebate paperwork.

Need tankless water heater installation in Lexington, MA? Call (781) 242-2386 or use the form on this page.

What we see in Lexington: Lexington housing tells you what to plan for before the truck rolls. Antique colonials around the Battle Green often hide knob-and-tube electrical adjacent to plumbing chases, requiring careful planning before any wall opens. Lexington Greens mid-century ranches typically have copper supply that's stood up well, but original water mains often need pressure regulation upgrades during fixture work. Construction along Route 2A is modern and code-current. From our Winchester shop it's about 12 miles to Lexington Center - 18-25 minutes typical drive.
Other Services in Lexington

Tankless Water Heater Installation in Nearby Towns

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"It is a pleasure to recommend Sedona! They went above and beyond to help us when a previous HVAC company totally let us down, and in the middle of recent heat waves, which had to be a very busy time for them. Danielle was fantastic, as were James and Derek. We are so happy to have found Sedona and h…"
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Patrice Robertie

(AC Repair)
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"I met Zack as a first-time customer on an after-hours emergency call when my furnace shut down. He arrived within 40 minutes and quickly found and fixed the problem. I couldn’t be more pleased with the efficiency of his work and his friendly attitude (on a cold Friday night at the end of the workw…"
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Ann Miller

(Furnace Repair)
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"Zack came to my home on a Saturday morning when my heating system had stopped working the night before—one of the coldest nights of the year. He identified the issue in my very complicated heating system and replaced the faulty part. He then made sure nothing was wrong with my other system on the …"
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Mehr Tabassi

(Furnace Repair)
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"I live in Winchester and contacted Sedona Plumbing regarding a leaking copper pipe in my basement. My house was built in 1956, and many of the horizontal copper pipes were deteriorating. Zack and his crew responded quickly, gave me a reasonable bid for replacing all of the affected pipes, and comple…"
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John Malia

(Plumbing)
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"Zack was great! He rerouted an exhaust pipe for our roof and a vent for our dryer. All the pipework was solid and nicely finished. He also took time to walk through options with us, explain everything, and give us some good tips for a couple of other small projects around the house. Definitely calli…"
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Nicholas Borge

(Plumbing)
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"Sedona Plumbing does the best work! We were so happy, and Zack is truly a perfectionist and expert in his field! He went above and beyond and explained the process to us as he went!"
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Kyla MacMunn

(Plumbing Services)
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"Zack was amazing and provided great service. Our AC stopped working, and we noticed a water stain around one of the vents. Zack was responsive and came out the next morning. He re-piped our entire system due to a blockage and did it in a way that will make it easier to resolve any future blockages. …"
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Victoria Imbriani

(AC Repair)
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"I own a small business in Winchester, and our heat was out for a day and a half while we were waiting on the HVAC company I usually use. I couldn’t wait any longer, so I called around, and Sedona was the only company that could get out there that day (within hours). They quickly figured out what w…"
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Kyle Emerson

(Heating Repair)
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"It was a harrowing day for Bostonians today, especially those of us who live in areas with high water. After a very wet night and over four inches of rain, my sump pump malfunctioned and was about to overflow. I was referred to Sedona Plumbing & Heating, and Zack, the owner, actually picked up t…"
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Mary Rogul

(Emergency Plumbing Services)
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"Zack is the best! He installed a water filter for us. He is thorough, efficient, and a true expert at what he does. I trust his opinion, and I know I can always count on him. His work is perfection, and he even leaves everything cleaner than he found it. Highly recommend!"
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Kyla Tucci

(Plumbing)
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