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McMahon Plumbing & Heating provides plumbing, heating, and drain cleaning installations, upgrades, repairs, and emergency services throughout Greater Boston.

McMahon Plumbing & Heating, serving Greater Boston since 1952
McMahon Plumbing & Heating has served the Boston area since 1952. Our radio-dispatched trucks are fully stocked with tools and emergency equipment, and we can provide service to you whenever you need it, 24/7. 


Plumbing: Residential and commercial plumbing repairs, installations, and services.

Heating: We service all types of heating and HVAC systems — hot water and steam boilers, furnaces, heat pumps, radiant heating systems, and more. We do heating system installations and upgrades.

Air conditioning: We can install and service all types of air conditioning systems, from central air  to energy-efficient ductless mini-splits.

Drain cleaning: We service all types of drains, including sinks, tubs, showers, floor drains, and main line and septic drains.

Remodeling: We do quality installations for kitchen and bathroom remodeling projects. 

Residential – Multi-family – Commercial

Installations – Service – Repair

McMahon Plumbing & Heating and Paradigm Energy Services

McMahon Plumbing & Heating is part of the Paradigm Energy Services family. Paradigm helps owners of multi-family properties and single-family homes with energy efficiency services that are affordable — including HVAC upgrades, weatherization, smart thermostats, and lighting upgrades. 

Why McMahon?

Professional Training

Less than 20% of home repair companies today have any ongoing training for their employees. This means that many plumbing, air conditioning, and heating contractors are using outdated techniques and may have developed bad habits.

McMahon’s plumbers and HVAC technicians are among the most qualified in the Metro Boston area. Our team receives continuous training so that they stay at the cutting edge of their profession.

Up-Front Pricing

No hidden charges! We will give you an approximate price estimate before we even get started on your job.

24/7 Emergency Service

Your plumbing problems don’t stick to a schedule, so why should you have to wait for a solution? Call anytime 24/7 for emergency service – or to schedule any service with us.

Plumbing & Heating FAQ

Why Should I Hire a Licensed Plumber?

Licensed plumbers have demonstrated that they’re qualified and knowledgeable enough to make sure that their work is in compliance with plumbing codes. Unlicensed plumbers may be able to get a job done, but there will no be way for you to know that the work you receive is up to par, or that it’s reliable.

When you hire our licensed plumbers, all of the work we perform will come with a guarantee and a warranty. We’ll make sure that you’re completely satisfied with every aspect of our work.

Can I Do Plumbing Work On My Own?

Before you decide to tackle plumbing repairs without professional help, ask yourself the following questions:

  • Do you need to buy or rent any tools?
  • Do you have adequate experience to complete the job?
  • Do you have time to complete the job?
  • Do local codes require the work to be performed by a licensed plumber?

Before you decide to take care of a job on your own, you should compare the cost, time, stress, and quality of the work that you’ll be able to do with that of a professional.

What Regular Maintenance do Heating and Air Conditioning Systems Need?

The most important part of maintaining an HVAC system is to keep the air flow unrestricted. Your filters should be regularly changed or cleaned, and you should keep the heat exchanger and coils free of restrictions.

We recommend a yearly tune-up for your heating system in the fall and your air conditioning system in the spring. Tune-ups will ensure that your HVAC system functions efficiently, helping control your energy costs, and they’ll help prevent serious problems.

How Long Does a Typical Furnace or Air Conditioner Last?

Furnaces and air conditioners last for around 10-20 years. Sometimes, it’s a good idea to replace the units sooner in order to make them more energy-efficient. The lifespan of this equipment will also vary greatly depending on the frequency of maintenance and repairs that your heating or cooling unit receives.

From our blog

The Nothing Burger

Even before the rain had stopped, some of us in the Boston area were referring to Hurricane Lee as a “nothing burger.” (In Canada, parts of Maine, and Cape Cod, no one was saying that!)

Now that you’ve been given a free pass, here are some things to do to prepare for the NEXT emergency!

More »

Hurricane Lee–Preparing your Home

Here in the Boston area we don’t get very many hurricanes. When we do, it’s important to be prepared. In addition to the normal preparations for disaster, there are steps you can take to minimize damage to your home’s plumbing.

More »

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