Last updated: September 24, 2026
What affects the price
Replacing your water heater involves several variables that change the final bill. The biggest factor is the unit type—tankless models usually cost more upfront than traditional tank-style heaters due to installation complexity. You also have to consider the fuel source, as switching from gas to electric often requires electrical panel upgrades. Size matters too; a larger home needs a unit with higher recovery rates. Finally, local building codes might require additional safety equipment, like expansion tanks or updated venting.
About this service
Rinnai tankless heaters provide endless hot water, but they can experience scale buildup or sensor malfunctions over time. If your unit is struggling to maintain heat or shutting down unexpectedly, a technician will need to inspect the gas flow, water flow sensors, and internal combustion components. Regular maintenance can often prevent these issues, but repairs are necessary when the unit stops responding to demand. Costs depend on the specific parts required, with exact pricing confirmed free on the call.
Frequently asked in Boston
How long do Rinnai tankless water heaters typically last?
Rinnai tankless water heaters are built for longevity, often lasting 20 years or more with proper maintenance. This can be significantly longer than traditional tank models. Regular check-ups can help catch small issues before they become big problems, extending the life of your unit. It's always wise to have them inspected periodically to ensure peak performance.
What is the average cost of putting in a Rinnai tankless water heater?
What are signs I need a new Rinnai tankless water heater?
You might need a new Rinnai tankless water heater if you're experiencing inconsistent hot water temperatures, unusual noises like hissing or banging, or a noticeable drop in water pressure. Leaks around the unit are also a clear indicator of trouble. These symptoms suggest that repairs might be extensive or that the unit is nearing the end of its lifespan.
What is the most common problem with a Rinnai tankless water heater?
Common issues with Rinnai tankless water heaters often involve scale buildup inside the unit, which can restrict water flow and reduce efficiency. Ignition problems or sensor failures can also occur, leading to no hot water. Regular flushing can prevent scale, and professional diagnostics can pinpoint the exact cause of other malfunctions.
Is it worth it to repair a Rinnai tankless water heater?
Repairing a Rinnai tankless water heater is often worth it, especially for smaller issues like replacing a faulty igniter or cleaning out sediment. However, if the unit is very old or has suffered major internal damage, replacement might be a more cost-effective long-term solution. A professional can assess the damage and advise on the best course of action.
What is the most efficient type of Rinnai water heater?
Rinnai's condensing tankless water heaters are generally the most efficient models available. They capture heat from exhaust gases that would otherwise be lost, significantly improving energy efficiency. These units are excellent for reducing energy consumption and lowering utility bills over time. Consider this type for maximum savings.
Also serving nearby: Quincy · Cambridge · Lynn · Newton · Brockton
More on this: DOE water heating — efficiency and sizing.
Service area details
Serving all of Boston — population 653,833; about 13,525 residents per square mile across 48.3 sq mi. ZIP codes covered include 02108, 02109, 02110, 02111, 02112, 02113, 02114, 02115.
Neighborhoods served in Boston: Back Bay, Beacon Hill, Fenway-Kenmore, North End, South Boston, West End — and every surrounding area.
Areas we serve
Browse by state, then city.
Alabama (4)
All of Alabama · Birmingham · Huntsville · Mobile · Montgomery
Alaska (1)
Arizona (9)
All of Arizona · Chandler · Gilbert · Glendale · Mesa · Peoria · Phoenix · Scottsdale · Tempe · Tucson
Arkansas (1)
California (31)
All of California · Anaheim · Bakersfield · Chula Vista · Elk Grove · Fontana · Fresno · Garden Grove · Glendale · Huntington Beach · Irvine · Lancaster · Long Beach · Los Angeles · Modesto · Moreno Valley · Oakland · Oceanside · Ontario · Oxnard · Palmdale · Rancho Cucamonga · Riverside · Sacramento · San Bernardino · San Diego · San Francisco · San Jose · Santa Ana · Santa Clarita · Santa Rosa · Stockton
Colorado (3)
Florida (11)
All of Florida · Cape Coral · Fort Lauderdale · Hialeah · Jacksonville · Miami · Orlando · Pembroke Pines · Port St. Lucie · St. Petersburg · Tallahassee · Tampa
Georgia (3)
All of Georgia · Atlanta · Augusta-Richmond County · Columbus
Hawaii (1)
Idaho (1)
Illinois (2)
Indiana (2)
Iowa (1)
Kansas (1)
Kentucky (2)
All of Kentucky · Lexington-Fayette · Louisville/Jefferson County
Louisiana (3)
Maryland (1)
Massachusetts (2)
Michigan (2)
Minnesota (2)
Missouri (3)
Nebraska (2)
Nevada (4)
All of Nevada · Henderson · Las Vegas · North Las Vegas · Reno
New Jersey (2)
New Mexico (1)
New York (4)
All of New York · Buffalo · New York · Rochester · Yonkers
North Carolina (7)
All of North Carolina · Cary · Charlotte · Durham · Fayetteville · Greensboro · Raleigh · Winston-Salem
Ohio (5)
All of Ohio · Akron · Cincinnati · Cleveland · Columbus · Toledo
Oklahoma (2)
Oregon (3)
All of Oregon · Eugene · Portland · Salem
Pennsylvania (2)
Rhode Island (1)
South Dakota (1)
Tennessee (6)
All of Tennessee · Chattanooga · Clarksville · Knoxville · Memphis · Murfreesboro · Nashville-Davidson metropolitan government (balance)
Texas (17)
All of Texas · Amarillo · Austin · Brownsville · Corpus Christi · Dallas · El Paso · Fort Worth · Frisco · Garland · Grand Prairie · Houston · Irving · Laredo · Lubbock · McKinney · Plano · San Antonio
Utah (1)
Virginia (5)
All of Virginia · Chesapeake · Newport News · Norfolk · Richmond · Virginia Beach
Washington (4)
All of Washington · Seattle · Spokane · Tacoma · Vancouver
