Business Details
50+ Years
experience
Emergency
services
Full-Service HVAC & Oil Delivery Experts
Danisi Energy has been a trusted provider of comprehensive HVAC and fuel delivery services for over 60 years. As a family-owned and operated business, we serve Suffolk County and surrounding areas on Long Island with unwavering commitment to customer satisfaction. Our full-service approach eliminates the need for multiple contractors, as we handle heating, ventilation, air conditioning, and oil delivery in-house. With 24/7 emergency availability, we prioritize prompt, reliable solutions tailored to residential, commercial, and multi-family properties. Our team of certified technicians ensures proper installation, maintenance, and repair of systems, backed by partnerships with leading brands like Mitsubishi.Decades of local expertise enable us to deliver energy-efficient solutions that enhance comfort and safety. We maintain automatic oil delivery services to prevent supply shortages, even during extreme weather conditions. Customer testimonials consistently highlight our professionalism, technical proficiency, and rapid response times. Through competitive pricing and transparent communication, we build lasting relationships with clients. Our legacy of service excellence continues to distinguish us in an increasingly corporate-dominated industry.
Services
HVAC Installation
Emergency Repairs
Oil Delivery
Ductless Systems
Indoor Air Quality
Details
- Year established: 1965
Highlights and features
- We offer 60+ years of combined HVAC and oil delivery experience
- Our team provides 24/7 emergency service availability
- We handle all HVAC and fuel needs without subcontractors
- Certified technicians ensure proper installation and repairs
- Automatic oil delivery prevents supply shortages during winters
What people say
Prompt service
Knowledgeable technicians
24/7 availability
Competitive pricing
Reliable delivery
Services
HVAC Installation
Our certified technicians install energy-efficient heating and cooling systems tailored to property specifications. We offer comprehensive solutions for residential and commercial properties, ensuring optimal performance and energy savings. All installations include professional consultation and manufacturer warranty support.
Emergency Repairs
Available 24 hours daily for urgent HVAC issues, our rapid response team resolves critical heating and cooling failures. Technicians carry common replacement parts for immediate repairs, minimizing system downtime during extreme weather conditions.
Oil Delivery
Automatic heating oil delivery service prevents supply shortages using weather-based monitoring systems. We maintain reliable inventory to serve customers during peak winter demand periods, with emergency delivery options available.
Ductless Systems
We install and service ductless mini-split systems for improved energy efficiency and zoned temperature control. These systems enhance indoor air quality while providing flexible heating and cooling solutions for various property types.
Indoor Air Quality
Our air quality solutions include HEPA filtration, UV purification, and humidity control systems. These services address allergens and contaminants to create healthier living and working environments for residential and commercial clients.
Questions
What HVAC services do you offer?
We provide complete heating, ventilation, and air conditioning services including installation, repair, maintenance, and emergency service for residential and commercial properties.
Are emergency services available after hours?
Yes, our technicians are available 24 hours a day, 7 days a week for urgent HVAC issues and heating oil emergencies.
Do you offer heating oil delivery?
We provide automatic and emergency heating oil delivery services with reliable supply maintenance during winter months.
Is financing available for HVAC equipment?
Yes, we offer financing options for HVAC system replacements and major repairs through approved programs.
What areas do you service?
We serve Suffolk County and surrounding Long Island areas including Medford, Southampton, Port Jefferson, and East Hampton.
How can I schedule service?
Contact us at (631) 732-6666 or use our online request form for emergency service, maintenance, or equipment estimates.
