A tankless unit that is undersized for a Boston winter is a complaint machine. We size on measured groundwater temperature and real simultaneous demand, then we commission the unit and hand you the numbers.
Size
Fixture-unit count and 39°F inlet water. Winter is the design case here, not the average.
Vent & gas
Gas line load calculation and stainless concentric venting. Most conversions need the gas line upsized; we include it in the quote.
Install
Isolation valves for annual descaling, condensate neutralizer, and a scald-protection mixing valve as standard.
Commission
Combustion analysis, flow verification at every fixture, and a printed commissioning sheet for your records.
What's Included
In the price.
- Gas load calculation and line upsizing
- Permit and inspection
- Service valves and condensate neutralizer
- Old unit removal and disposal
- First-year descale included
Typical Investment
Written before we start.
Ranges below are real Greater Boston numbers from the last twelve months. Your quote is flat and in writing before any work begins.
Tank replacement, 50 gal
$2,200–$3,100
Same-day in most cases.
Tankless conversion
$5,400–$8,200
Includes venting and gas work.
Recirculation loop
$1,400–$2,600
Dedicated return or comfort valve.
Questions
Asked often.
Is tankless worth it in New England?
If you have the gas capacity, yes — properly sized. Our inlet water hits the high thirties in February, so we size two model steps above what a national calculator suggests.
How often does it need service?
Annual descaling in this water. We install isolation valves on every unit so it is a forty-minute visit rather than a plumbing project.
Can you do it in one day?
Tank swaps, almost always. Tankless conversions are typically one and a half days because of venting and gas work.
Request
Start with water heaters & tankless.
Begin
Water where it shouldn't be?
Call the direct line for immediate dispatch, or send the details and we'll reach you within the hour.