New Title

When your heater or furnace stops working properly, you need reliable repair services fast. Donlon Brothers Heating & Cooling Inc provides comprehensive heating system repairs throughout Bayport and Serving Suffolk County, NY. Our services include:

• Oil burner repairs and maintenance
• Furnace diagnostics and troubleshooting
• Boiler repair and servicing
• Emergency heating system repairs
• System component replacement
• Annual maintenance contracts

Our fourth-generation family business has been keeping homes warm since 1937. Reach out to us for a free on-site estimate.

Recognizing when your heater or furnace requires repair can prevent costly breakdowns and ensure your Bayport home stays comfortable all winter. Several warning signs indicate your heating system needs immediate service:

• Unusual noises from your furnace or boiler
• Inconsistent heating throughout your home
• Rising energy bills without increased usage
• Frequent cycling on and off
• Yellow pilot light instead of blue
• Cold air blowing from vents
• Strange odors when the system runs

Our certified technicians work with all major brands including Peerless boilers, Beckett burners, Riello burners, and Carrier systems. We offer emergency services when you need them most.

As a first responder-owned and operated business Serving Suffolk County, NY, we understand the importance of reliable heating systems for your family's safety and comfort. Our credentials and commitment set us apart:

• Certified NORA instructor on staff
• Fully insured and bonded
• One-year guarantee on all new installations
• First responder and senior citizen discounts available
• Service contract discounts for regular customers
• Manufacturer warranties honored and explained

Since 1937, our family has adapted as heating technology evolved. From the earliest oil burners to modern System 2000 equipment, we've remained your trusted heating professionals. Our small business approach means personalized service and genuine care for every customer.

A malfunctioning heater or furnace can leave your Bayport home cold and uncomfortable. Our experienced technicians are ready to diagnose and repair your heating system quickly and efficiently. We work with quality brands including Rheem, Bosch water heaters, Heat-Flo, Comfort Air, and St. Roch boilers. From routine maintenance to emergency repairs, our fourth-generation family business delivers the personalized attention and technical expertise your heating system deserves. Contact us today to schedule your free on-site estimate and experience the difference of working with a locally owned, family-operated heating company.