Boiler Repair Services in Somerville, MA

Steam and Hot Water Boiler Repair for Older Homes

Many of Somerville's older homes rely on boiler systems — steam radiators in pre-war triple-deckers and hot water baseboard systems in mid-century renovations. When your boiler breaks down, you lose heat to the entire home, and in a Massachusetts winter, that is a situation that demands a fast response. Our technicians have deep experience working on the types of boiler systems found throughout Somerville's neighborhoods.

We repair all boiler types including gas-fired, oil-fired, steam, and hydronic hot water systems. Common issues we handle include pressure problems, circulator pump failures, leaking pipes and valves, pilot light and ignition failures, and uneven heating across radiator zones. We also perform boiler safety inspections and can advise you on whether repair or replacement is the smarter long-term investment.

What's Included in our Boiler Repair service?

Steam Boiler Repair

We service and repair steam boiler systems including pressure control issues, water level problems, steam trap failures, and radiator valve replacements. Our technicians understand the specific demands of the steam systems that heat many of Somerville's oldest buildings.

Hot Water Boiler Repair

For homes with hydronic heating, we repair circulator pumps, zone valves, expansion tanks, pressure relief valves, and baseboard heating components. We restore even heat distribution across all zones of your home.

Boiler Pressure and Leak Repair

Boiler pressure issues and water leaks can cause damage to your home and indicate serious system problems. We locate the source of the leak, repair or replace the affected components, and restore proper system pressure.

Somerville's Trusted HVAC Repair and Installation Experts

Proudly serving Somerville, Arlington, Cambridge, Charlestown,

Everett and Medford for 10+ years.

Comprehensive HVAC Services in Somerville
Tailored to Your Needs

We provide a full range of HVAC services designed to keep Somerville homes comfortable in every season. From emergency repairs to complete system installations, our licensed technicians handle heating, cooling, and air quality work for homes of all ages and sizes across Somerville and the surrounding area.

Fast, reliable AC repair for Somerville homes — we fix all makes and models so your home stays cool when it matters most.

Dependable furnace repair from technicians who know Somerville's older heating systems and can get your heat back on fast.

Professional heat pump installation with Mass Save rebate guidance — efficient year-round heating and cooling for your Somerville home.

Ductless mini split installation built for Somerville's older homes — efficient zone heating and cooling without tearing into your walls.

Expert AC installation for Somerville homes — we help you choose and install the right cooling system for your space and budget.

Experienced boiler repair for Somerville's steam and hot water heating systems — we keep your radiators running all winter long.

Seasonal HVAC maintenance and tune-ups that prevent breakdowns, lower energy bills, and extend the life of your heating and cooling equipment.

Professional furnace installation with proper sizing for Somerville's unique homes — upgrade to a high-efficiency system and lower your heating costs.

Professional water heater installation for Somerville homes — tank, tankless, and heat pump options with Mass Save rebate eligibility.

Geothermal heating and cooling delivers the lowest operating costs of any HVAC system — with Mass Save rebates up to $25,000 for Somerville homeowners.

Frequently Asked Questions

HVAC can be complex, and we’re here to provide answers to common questions. Here are some frequently asked questions from our clients.

Frequently Asked Questions about HVAC Repair In Somerville

How often should I schedule HVAC maintenance?

We recommend scheduling professional HVAC maintenance at least twice a year — once in the spring for your cooling system and once in the fall for your heating system. Regular tune-ups help catch small issues before they become costly repairs, improve energy efficiency, and extend the lifespan of your equipment. Somerville homes with older systems or heavy seasonal use may benefit from more frequent checkups.

What are signs my HVAC system needs repair?

Common warning signs include unusual noises like banging or squealing, uneven temperatures between rooms, a sudden spike in your energy bills, weak airflow from vents, frequent cycling on and off, and strange odors when the system runs. If you notice any of these issues, it is best to call a qualified technician before the problem worsens — especially in Somerville where extreme winter cold can make a breakdown dangerous.

Do you offer emergency HVAC service?

Yes. We understand that HVAC emergencies do not follow a convenient schedule, especially during Somerville's harsh winters or humid summer stretches. Our team is available for emergency calls to get your heating or cooling system back online quickly so your home stays safe and comfortable.

How do I know if I should repair or replace my HVAC system?

A good rule of thumb is the age and repair frequency of your system. If your furnace or AC unit is over 15 years old and you are facing a repair that costs more than half the price of a new system, replacement is usually the smarter investment. We assess your current equipment, factor in energy efficiency ratings, and help you weigh the long-term costs so you can make an informed decision.

What HVAC rebates are available in Somerville?

Somerville residents may qualify for significant savings through the Mass Save program, which offers rebates on heat pumps, furnaces, and other energy-efficient HVAC equipment. Heat pump rebates can reach up to $10,000 or more for whole-home installations. Additional rebates are available for ductless mini splits and heat pump water heaters. We help guide you through the paperwork and make sure you take advantage of every incentive available.

How long does a typical HVAC installation take?

Most residential HVAC installations in Somerville are completed within one to three days, depending on the complexity of the project. A straightforward furnace or AC swap may take a single day, while a full heat pump conversion or ductless mini split system with multiple indoor units may require two to three days. We walk you through the timeline before any work begins so there are no surprises.

Frequently Asked Questions about Boiler Repair

Why is my boiler leaking water?

Boiler leaks are commonly caused by corroded pipes, faulty pressure relief valves, failing pump seals, or a cracked heat exchanger. In many older Somerville homes with original steam or hot water boiler systems, corrosion from age is the most frequent cause. Any leak should be addressed quickly to prevent water damage and further system deterioration.

Why are some radiators in my home not heating?

Cold or uneven radiators usually indicate trapped air in the system, a stuck zone valve, a failing circulator pump, or sediment buildup restricting water flow. In Somerville's older hydronic and steam systems, bleeding the radiators and checking zone valves are the first troubleshooting steps. If that does not resolve it, a professional inspection can identify the underlying cause.

How often should a boiler be serviced?

Boilers should be professionally serviced at least once a year, ideally in the early fall before heating season begins. Annual service includes checking the pressure, inspecting the heat exchanger, testing safety controls, and cleaning components. Massachusetts requires periodic boiler inspections for certain system types, and regular maintenance keeps you compliant and safe.

What is the difference between a steam and hot water boiler?

A steam boiler heats water until it turns to steam, which rises through pipes to radiators by its own pressure. A hot water boiler circulates heated water through pipes using a pump. Both types are common in older Somerville homes. Steam systems are typically found in pre-war triple-deckers, while hot water systems were installed in mid-century and later renovations. Each requires different maintenance and repair approaches.

Having boiler problems? Call our Somerville team for fast, reliable repairs on steam and hot water heating systems of all ages.

What Our Satisfied Clients Have to Say About

We pride ourselves on delivering great results and experiences for each client. Hear directly from home and business owners who’ve trusted us with their HVAC needs.

5 Star rating for

Our furnace quit on one of the coldest nights of the year and they had a technician at our triple-decker in Winter Hill within a few hours. Diagnosed the problem fast, explained everything clearly, and got us back up and running the same night. Could not ask for better service.

Michael R.

5 Star rating for

We needed a full heat pump installation in our Davis Square home and they walked us through the entire Mass Save rebate process. The installation crew was professional, clean, and finished on schedule. Our energy bills have dropped noticeably since the switch.

Sarah T.

5 Star rating for

I have used them for annual maintenance on my boiler for two years now. They are always on time, thorough, and honest about what needs attention and what can wait. Hard to find that kind of straightforward service these days.

David L.

The Trusted HVAC Expert Near You

Ready to hear more about expert services at ?

Contact us today to receive a detailed, no-obligation quote.

More About Boiler Repair

We share helpful articles about to answer common questions, explain options, and give a better sense of what to expect. Whether you’re taking care of your own home or responsible for a larger property, these resources are meant to make planning and decision-making a little easier.