Boiler Repair & Installation

Boiler Repair & Installation Services in Southborough, MA

Expert Service for High-Efficiency Hot Water and Steam Systems in MetroWest

For many homes in Southborough and the greater MetroWest region, a boiler remains the most reliable and comfortable method of heating. At Metro West Mini Splits, we are specialists in both the repair of existing boiler systems and the installation of modern, high-efficiency units.


Whether you rely on a hot water or a steam boiler, our licensed and experienced technicians provide expert diagnostics, meticulous repairs, and seamless installations, ensuring your home stays consistently warm and your energy costs stay low.

Comprehensive Boiler Repair Services

When your boiler malfunctions, quick, precise service is essential. Our team is trained to diagnose and repair issues across all major boiler brands and types, restoring your heat with minimal downtime.


Common Boiler Problems We Solve:

  • No Heat or Insufficient Heat: Diagnosing issues with the pilot light, igniter, or circulation pump.
  • Kettling Noises: Identifying and resolving mineral or scale buildup inside the heat exchanger.
  • Low System Pressure: Locating leaks and repairing or replacing faulty expansion tanks or pressure relief valves.
  • Leaking Boilers: Pinpointing leaks at fittings, valves, or tank connections and performing durable repairs.
  • Faulty Thermostats: Repairing or replacing controls that prevent the boiler from cycling on or off correctly.
  • Radiator Issues: Bleeding air from radiators or fixing zone valve problems to ensure even heat distribution.



If your system is making strange noises, leaking water, or simply failing to keep your home warm, trust our Southborough experts for a rapid and reliable diagnosis.

High-Efficiency Boiler Installation & Replacement

Upgrading to a new boiler is a smart investment that pays dividends in comfort and savings. We specialize in the installation of modern, energy-efficient boilers that drastically outperform older models.


Key Benefits of a New Boiler Installation:

  • Superior Efficiency: We install high-efficiency condensing boilers with AFUE (Annual Fuel Utilization Efficiency) ratings that often exceed 95%, meaning less heat is wasted.
  • Consistent, Even Heat: New systems provide precise temperature control without the blasts of hot air associated with some furnace systems.
  • Smaller Footprint: Modern wall-mounted boilers take up less space, freeing up room in your utility area or basement.
  • Quiet Operation: New technology allows for much quieter performance compared to older steam or cast-iron units.

Our Installation Process:

Our installation process is thorough and focuses on long-term reliability. We assess your home's heating load, recommend the correctly sized boiler (avoiding both under- and oversizing), and handle the complete installation, including all necessary plumbing, venting, and electrical work, ensuring compliance with all local Southborough codes.

A person in a red cap and work overalls repairs a water heater with a wrench in a utility room.
White water heater in a basement with connected pipes and a pump.
White water heater and associated piping in an indoor utility room.

Why Choose Metro West Mini Splits?

While our name highlights mini-splits, our expertise encompasses all major forms of residential heating, including boilers.

Licensed & Insured 

We provide professional service backed by proper certifications and insurance.

Focus on Efficiency

We prioritize solutions that qualify for available local incentives, such as Mass Save rebates, helping you maximize savings on your new installation.

Trusted Local Service

Serving Southborough, MA, and the surrounding communities with a commitment to integrity and quality craftsmanship.

Schedule Now

For expert boiler repair or a free quote on a new high-efficiency boiler installation, contact the heating specialists at Metro West Mini Splits today.


Call 508-388-6816 to schedule your service or consultation.

  • What signs indicate that my boiler needs repair?

    Common signs include unusual noises, inconsistent heat, water leaks, rising energy bills, or slow radiator response. If your boiler is cycling on and off frequently or has trouble maintaining temperature, it’s time for a professional inspection.


  • When should I consider replacing my boiler instead of repairing it?

    If your boiler is 15 years or older, requires frequent repairs, or is no longer heating efficiently, replacement may be the more cost-effective option. A new, high-efficiency boiler can provide better comfort, improved safety, and lower energy costs.


  • What types of boilers does Metro West Mini Splits install?

    We install a wide range of modern, high-efficiency boilers, including:


    • Gas boilers
    • Oil boilers
    • Combi boilers (for on-demand hot water and heating)
    • High-efficiency condensing boilers

    We help you choose the right model based on your home’s size, fuel type, and heating needs.


  • How long does boiler installation take?

    Most boiler installations can be completed in one day, though larger homes or more complex systems may require additional time. Our team works efficiently to minimize disruption and ensure a clean, professional installation.

  • Are modern boilers more energy-efficient?

    Yes. New boilers are significantly more efficient than older models. High-efficiency condensing boilers, in particular, can greatly reduce fuel consumption and lower your heating bills—especially when replacing outdated equipment.



  • What should I expect during a boiler repair service?

    Our technicians will diagnose the issue, explain your repair options, and complete the necessary fixes using high-quality parts. We prioritize safety, reliability, and long-term performance to ensure your heating system is running smoothly.


  • How do I know which boiler is right for my home?

    We conduct a detailed assessment of your home’s heating requirements, number of zones, fuel source, and hot water needs. Based on this, we recommend the most efficient and cost-effective boiler for your space.

  • Do you offer emergency boiler repair services?

    Yes. We provide prompt, reliable boiler repair to restore heat quickly when your system fails—especially during cold New England winters.

  • Do boiler installations come with a warranty?

    Absolutely. All installations include manufacturer warranties on equipment and a workmanship guarantee from Metro West Mini Splits to ensure peace of mind and long-term reliability.

  • How can I get a quote for boiler repair or installation?

    Contact us to schedule a free, no-obligation estimate. We’ll assess your system, discuss your options, and provide a transparent quote tailored to your home and budget.

Contact Us Today to Get Started