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Boiler Repair & Service

Steam and hot water boilers — standard equipment in older New England homes. We diagnose the fault, explain your options and fix it properly.

Plumbing license
1310027098-PL-CMA licensed
Shop
99 Felton StWaltham, MA
Service call
Free$89 fee only if you go ahead
Workmanship
5 yearsNo labor charge
Hours
8am–8pmMonday through Friday

What boiler problems do you repair?

A malfunctioning boiler can leave your home without reliable heat or hot water, and Massachusetts winters don’t wait. We work on a wide range of systems, from older residential units to modern high-efficiency models, including:

  • Boilers that won’t start or keep shutting off
  • Uneven heating or cold radiators
  • Banging, gurgling or other unusual noises
  • Pressure and expansion problems
  • Leaks at the boiler, valves or radiators

How do you approach a boiler repair?

We diagnose the issue carefully, explain your repair options clearly, and focus on fixes that keep the system running reliably rather than short-term patches.

Can a boiler upgrade qualify for Mass Save incentives?

Efficient heating equipment can qualify for Mass Save rebates and HEAT Loan financing. We’re a Mass Save Home Performance Contractor, so we can tell you what applies — see our energy services for how the program works.

5.0 across 344 Google reviews of our energy workRead them on Google

5 YEARS

5-Year Workmanship Guarantee

We stand behind how we do the work for five years. If something fails because of our installation or repair, we come back and correct it — no labor charge.

Covers Colt's workmanship. Parts carry the manufacturer's warranty. Excludes pre-existing conditions, customer-supplied fixtures, and freeze or misuse damage. Read the full terms

Common questions

What are the signs a boiler needs service?

Unusual noises, uneven heat between rooms or floors, the system failing to start, pressure problems, or leaks around the boiler or radiators.

Repair or replace?

We'll tell you honestly. Many faults are repairable; an old, inefficient boiler that keeps failing may be a candidate for replacement, and Mass Save incentives can apply to efficient heating equipment.

What does a boiler repair visit cost?

The service call is free. A licensed plumber comes out, diagnoses the problem and gives you a written price before any work starts. If you go ahead with the repair, there's an $89 service fee on top of that price; if you don't, you pay nothing.

Related plumbing services

  • Water Heater Installation

    Replacement and correct sizing, with code-compliant venting and expansion control.

  • Water Heater Repair

    No hot water, sediment rumble, leaking tanks, thermostat and element faults.

  • Repiping

    Replacing galvanized supply — whole house or one run at a time.

Your Home Comfort Starts Here.

A real person answers, Monday–Friday, 8am–8pm.

  1. 1Service
  2. 2Details
  3. 3Location
  4. 4Time
  5. 5Contact

What can we help you with?

No-cost home energy assessmentMass Save insulation and weatherization