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50+ Years
experience
Emergency
services
Your Trusted HVAC Partner in Bay Shore, NY
Founded in 1932, Frank Bros. Fuel has been a trusted provider of heating, cooling, and HVAC services for residential and commercial clients across Long Island. Our commitment to honest, personalized service has remained unchanged for nine decades, even as we've evolved from coal delivery to renewable Bioheat fuel and modern HVAC technology. We specialize in oilheat, natural gas, and diesel fuel delivery, along with installation and maintenance of heating systems, boilers, furnaces, and air conditioning equipment. Our 24/7 emergency service ensures year-round comfort, while automatic delivery systems prevent fuel shortages. Our technicians receive annual training to maintain expertise in smart thermostats, computerized controls, and integrated systems.

We measure success through long-term customer relationships built on reliability and transparency. Our 500,000-gallon storage facility supports efficient service across Western Suffolk County. We offer comprehensive service plans for heating and cooling systems, including annual tune-ups that improve efficiency by up to 10%. Our team provides free heating system analyses to optimize performance. As a family-owned business since our founding, we continue to prioritize community values while embracing technological advancements.
Services
Heating System Installation Air Conditioning Maintenance Fuel Delivery Emergency Repairs Annual Tune-Ups Gas Conversions Thermostat Installation Cooling Systems Oil Tank Services Service Plans
Details
  • Year established: 1932
Highlights and features
  • We offer 90 years of experience serving Long Island's heating and cooling needs
  • Our team provides 24/7 emergency HVAC service with rapid response times
  • Technicians receive annual training on the latest HVAC technology and controls
  • We deliver renewable Bioheat fuel that reduces carbon emissions by 80%
  • Our free heating system analysis identifies efficiency improvement opportunities
What people say
Prompt service in crisis 35-year satisfied customer Exemplary installation performance Surpassed expectations Highly recommend company
Services
Heating System Installation
We install modern oil-fired boilers, furnaces, and indirect water heaters that improve energy efficiency and reduce operating costs. Our technicians specialize in integrating new systems with existing infrastructure while ensuring optimal performance. All installations include comprehensive system testing and customer education on equipment operation.
Emergency HVAC Repairs
Our emergency repair team responds to heating and cooling failures 24 hours a day, 365 days a year. We maintain a fleet of fully equipped service vehicles to address urgent issues promptly. Emergency service includes priority diagnostics and repairs to restore comfort as quickly as possible.
Bioheat Fuel Delivery
We deliver clean-burning Bioheat fuel that combines ultra-low sulfur heating oil with biodiesel from renewable sources. Our automatic delivery system prevents fuel shortages using degree-day monitoring technology. Customers benefit from reduced emissions and improved system efficiency with this environmentally friendly fuel option.
Cooling System Maintenance
Our Cool Start 12-point AC tune-up service optimizes cooling system performance through comprehensive inspection and maintenance. Technicians check refrigerant levels, clean coils, inspect electrical components, and test system operation to ensure maximum efficiency and longevity of air conditioning equipment.
Gas Conversion Services
We assist homeowners in converting from oil to natural gas heating systems, providing expert consultation on equipment requirements and cost considerations. Our services include installation of gas-fired heating equipment and integration with existing distribution systems to ensure seamless transition and improved energy efficiency.
Questions
What heating services do you offer?
We provide complete heating system installation, maintenance, and emergency repair services for oil and gas systems, including annual tune-ups and fuel delivery.
Do you offer 24/7 emergency service?
Yes, our emergency HVAC technicians are available 24 hours a day, 365 days a year for urgent heating and cooling issues.
What fuel options are available?
We deliver Bioheat® fuel, ultra-low sulfur heating oil, diesel, and support natural gas conversions for residential and commercial customers.
How can I schedule service?
Call us at 631-665-3300 during business hours or use our online contact form to schedule appointments and request service.
What payment options do you have?
We offer convenient online payment options for account holders and accept major credit cards for service and fuel purchases.
Do you service cooling systems?
Yes, we provide complete air conditioning installation, maintenance, and repair services including our 12-point Cool Start tune-up program.