Plumbing & HVAC Services in Watertown CT

A stopped-up drain could easily turn into an overflowing toilet or bathtub, while an HVAC system that doesn’t efficiently filter and circulate air ends up costing you long term. When you’re dealing with these scenarios in Watertown, CT, getting a resolution is as simple as calling M.J. Fahy & Sons.

In business since 1890, our company covers plumbing, HVAC, fire protection, and process piping for homes and businesses in Connecticut, offering maintenance, repair, and installation services. What can we do for you?


No space is too large or too small. As such, we can assist your Watertown property with clogs, repairs, and installations related to:

  • Appliances and fixtures like toilets, faucets, sinks, tubs, whirlpools, and showers.
  • Drain cleaning and garbage disposals
  • Water heaters, heat pump water heaters, gas fired water heaters and instantaneous water heaters
  • Water treatment systems
  • Designing plumbing systems for new construction


Whether designing an entirely new heating system or servicing an existing one, M.J. Fahy presents cost-effective replacements made out of quality materials, with each job completed in a timely manner. When it comes to your Watertown home or business, have us service:

  • Boilers, furnaces, and radiant heat systems.
  • Heat pumps.
  • Air conditioning systems
  • Exhaust and attic fans
  • Humidifiers and dehumidifiers
  • Designing and installing new HVAC systems

Fire Protection

Sprinklers turn into that life-saving backup when a fire starts unexpectedly. So, to prepare for those freak accidents, make sure your system is ready to operate up to par. Whether you’re considering a new sprinkler for your Middlebury business or need a residential system repaired, we’re here to assist with installation, design, and maintenance.

Process Piping

If your manufacturing facility uses compressed air as its primary power source, ensure it remains operating efficiently. M.J. Fahy can help with installing a new system, repairing an existing one, and pipe fabrication.

Whether you’re making efficiency a priority or need to have a toilet unclogged, M.J. Fahy is ready to handle the job. For service in Watertown, contact us today to schedule an appointment.