Boiler Repair · South Shore MA
Boiler Repair for Gas, Oil & Propane Homes
Licensed boiler repair across the South Shore, with a real person answering the phone 24/7.
★ 4.9 · 518 Google reviews · MA Master Plumber PL17071-M · Veteran-owned · Nextdoor Neighborhood Favorite
Navien Certified · Military, veteran and first responder discounts.
Signs Your Boiler Needs Repair
- No heat, or some zones heat and others don’t
- No hot water from a combi boiler or indirect tank
- Banging, gurgling or whistling
- Water on the floor or a relief valve dripping
- Pressure gauge too high or too low
- Error code on the display or a burner lockout
Smell gas or hear a CO alarm? Leave the house and call 911 from outside.
What we repair: cast-iron, steel and high-efficiency condensing boilers on gas, oil and propane, including circulator pumps, zone valves, expansion tanks, relief valves, igniters, burners, controls and indirect water heaters. We’re Navien Certified for Navien combi and condensing boilers.
Why 3R: A boiler is plumbing and heating at once. We hold MA Master Plumber License PL17071-M, we’re veteran-owned, and we work on every fuel type.
How It Works
- Call or book. A person answers and asks what you’re seeing.
- Diagnose. A licensed technician finds the cause and explains your options.
- Repair. We fix it, test every zone and make sure the heat is back.
Old boiler? If repairs keep adding up, ask about replacement with Mass Save rebates applied at signing and financing through GreenSky or the Mass Save HEAT Loan.
Book Online: Pick Your Time
Choose a service and a time below. Emergency? Call (781) 385-5064 instead. A person answers 24/7.
Scheduler not loading? Open it in a new window →
Common Questions
Why is my boiler not heating?
Common causes are low pressure, a failed circulator, air in the lines, a stuck zone valve or a burner lockout. A technician can test for each and pinpoint the cause.
Why is my boiler banging?
Usually trapped air, low water, or scale on the heat exchanger. If there’s no leak and pressure looks normal, leave it running and call us.
Do you repair oil boilers?
Yes. We repair gas, oil and propane boilers.
Can you fix a boiler on a weekend?
A person answers our phone 24/7, weekends included, and will tell you when a technician can get there.
Why South Shore Homeowners Call 3R
- ★ 4.9 from 518 Google reviews
- Licensed & insured in Massachusetts · MA Master Plumber License PL17071-M
- Veteran-owned. Our founder served in the U.S. Army. Established 2022.
- Certified: Mitsubishi Electric Diamond Contractor · Navien Certified · EPA certified
- Nextdoor Neighborhood Favorite: voted best of 2022, 2023 and 2025
- A person answers 24/7, not a voicemail box.
Towns We Serve
From our shop at 77 Accord Park Drive in Norwell, we serve Norwell, Hingham, Cohasset, Scituate, Marshfield, Hanover, Pembroke, Duxbury, Weymouth, Braintree, Quincy, Plymouth, Kingston, Hanson, Hull, Halifax, Rockland, Abington, Whitman, Plympton and Carver. Not sure you’re in range? Call and ask.
Ready when you are.
Call and a person answers, day or night. Or pick a time online.