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Breffni Mechanical

HVAC contractor in Yonkers, NY.

Trade
HVAC contractor
Business address
640 Saw Mill River Rd, Yonkers, NY 10710
Telephone
(914) 200-5575
Website
breffnimech.com
Hours
  • Monday8:00 am - 5:00 pm
  • Tuesday8:00 am - 5:00 pm
  • Wednesday8:00 am - 5:00 pm
  • Thursday8:00 am - 5:00 pm
  • Friday8:00 am - 5:00 pm
  • SaturdayClosed
  • SundayClosed

From the business's Google listing, checked Oct 2026

Register
NY register

Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the state board.

Google Reviews

5.0 (4)

  • Breffini is the best! Interviewed many companies in Westchester. None had the expertise, capability and creativity to do the job.. We were very lucky to find Breffini. They are true professionals in the field of HVAC installation, service and maintenance. They protected the aesthetics and integrity of the home while designing/installing a brand new HVAC system (air source heat pump) and they did a superb job. They are really good people too! Highly recommend!

    sofia L.

  • Breffni Mechanical completed a challenging NYC residential HVAC installation for us that numerous vendors failed to accomplish. The work was stellar and exceeded all expectations. It was on budget, on time, clean and all deliverables were exactly as they committed to. All involved in this install are masters of their craft including the front office and all the techs and installers. Thanks again to you all for a phenomenal job. Wishing you all continued success!

    Evan G.

  • Worked performed- Mitsubishi ductless units. This review is legitimate. These guys were outstanding! Helped me out of a jam. The owner and the team finished a job that could not be completed by another vendor. Their customer service with David at the helm was over the top. He kept me informed, always told the truth, which is a rarity these days. I can’t thank them enough.

    Tony D.

About Breffni Mechanical

Breffni Mechanical was founded in Yonkers in 2003 by Gareth Warrington, following work in sheet-metal fabrication, welding, and mechanical contracting. The company handles HVAC installation and repair, and it describes maintenance as part of its work.

Breffni Mechanical's heating and cooling work

The company names air conditioning, heat pumps, HVAC installation, HVAC repair, and regular maintenance among its services. It also describes smart controls for home heating and air-conditioning systems, including WiFi-controlled products.

Breffni Mechanical works with both residential and commercial customers. Its residential material includes incentives for air-source heat pumps, while its commercial material identifies commercial HVAC services. The company also offers project financing.

Yonkers homes and heating equipment

In Yonkers, utility gas heats 57% of housing units, per the American Community Survey 2024. That places gas-fired heating equipment alongside the heat-pump and air-conditioning work Breffni Mechanical names.

NOAA normals for 1991-2020 put Yonkers' mean temperature at 51.2°F, with an average high of 61.3°F and average low of 41.2°F. Breffni Mechanical's stated heating, cooling, repair, installation, and maintenance work covers the equipment categories it identifies for local residential and commercial customers.

Rating and weekday hours for Breffni Mechanical

Breffni Mechanical has a 5.0 rating from 4 reviews. Its posted weekday hours run from 8:00 am to 5:00 pm, Monday through Friday.

The company's service descriptions span new HVAC equipment, repairs to existing systems, routine maintenance, air conditioning, and heat pumps. Its Yonkers base has been part of the business since its 2003 founding.

Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from the US Census and NOAA.

More HVAC contractors in Yonkers

About Yonkers

Population212,603 (2025)
CountyWestchester County
Average yearly snowfall36.1 inches
Heating degree days5,715
Most common heating fuelUtility gas

Sources: U.S. Census Bureau. NOAA U.S. Climate Normals 1991-2020.