Call Now
Website
Call
Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC Partner Since 1922
Reliable Oil & Heat has been a trusted provider of heating and cooling solutions since 1922, serving Connecticut communities with a commitment to quality and personalized service. Our fourth-generation family-owned business specializes in the installation, maintenance, and repair of heating and air conditioning systems, ensuring year-round comfort for residential and commercial clients. We offer premium Bioheat fuel and automatic delivery programs to guarantee reliable energy supply during critical seasons. Our comprehensive service agreements and 24-hour emergency response team provide peace of mind for all HVAC needs. With dedicated locations in Stamford, South Norwalk, and Darien, we combine local expertise with industry-leading equipment to deliver tailored comfort solutions.

Our EZ Pay budget plan and price protection programs help customers manage energy costs effectively. Backed by decades of experience and a reputation for integrity, we prioritize customer satisfaction through transparent communication and professional execution. From furnace tune-ups to air quality system installations, our certified technicians deliver expert service that meets exacting standards. As a community-focused company, we maintain active involvement in local initiatives while continuously investing in staff training and technological advancements to serve our customers better.
Services
Oil Heat Bioheat Fuel Air Conditioning Automatic Delivery Service Plans Price Protection Plumbing Services Tank Replacement Budget Plans Emergency Repair
Details
  • Year established: 1922
Highlights and features
  • Family-owned since 1922 with fourth-generation HVAC expertise
  • 24-hour emergency service available year-round
  • Customized budget plans for predictable energy costs
  • Certified technicians with specialized heating/cooling training
  • Locally-owned with multiple Connecticut service locations
What people say
Prompt emergency service Competitive pricing programs Knowledgeable technicians Reliable automatic delivery Personalized attention
Services
Oil Heat
Our premium heating oil and renewable Bioheat fuel deliver efficient warmth for Connecticut homes and businesses. Automatic delivery ensures consistent supply while price protection programs shield customers from market volatility. Certified technicians maintain optimal system performance through regular maintenance and emergency repairs.
Air Conditioning
We install and service advanced air conditioning systems for residential and commercial properties. Our offerings include energy-efficient units, annual maintenance agreements, and emergency repair services. Technicians provide indoor air quality assessments and system optimization to ensure maximum comfort during warm seasons.
Service Plans
Customizable service agreements cover heating and cooling system maintenance, including annual tune-ups and priority emergency service. Plans feature budget-friendly payment options and comprehensive coverage for boilers, furnaces, and HVAC components to extend equipment lifespan.
Plumbing Services
Specialized plumbing services for heating and cooling systems include tank replacements, pipe maintenance, and water heater installations. Our licensed plumbers handle both residential and commercial projects with 24/7 emergency availability for urgent leak or system failures.
Budget Plans
Our EZ Pay program offers 10- and 11-month budget plans to smooth seasonal energy costs. Customers receive predictable monthly payments based on historical usage, avoiding winter price spikes while maintaining uninterrupted service through automatic delivery scheduling.
Questions
What heating services do you offer?
We provide oil heat delivery, Bioheat fuel, furnace/boiler installation, annual tune-ups, and 24/7 emergency repair services for residential and commercial properties.
Do you offer air conditioning services?
Yes, we install, maintain, and repair air conditioning systems including energy-efficient units, service agreements, and emergency cooling solutions for homes and businesses.
What payment options are available?
We offer 10- and 11-month budget plans, automatic payments, and price protection programs to help customers manage energy costs predictably.
Are emergency services available?
Yes, we provide 24-hour emergency HVAC repair. Call (203) 324-2141 or (203) 866-9954 for immediate assistance with heating or cooling system failures.
What areas do you serve?
We serve Stamford, South Norwalk, Darien, and surrounding areas in lower Fairfield County, Connecticut.
How can I schedule service?
Use our online request form for non-emergency service or call during business hours. Emergency customers should call our dedicated emergency lines.
Videos
Reviews (4)
Terrence Moduthagam
Feb 07, 2022 Report
Our heating went out this morning, within 30 minutes of my phone call, Reliable sent over a gentlemen that has been doing work for 43 years, quickly diagnosed the problem, and proceeded to take apart the system and clean and triage the issue and fix it with very little hassle. I was very impressed with his understanding of the system and be able to diagnose the problem and within 40 minutes to clean, fix, and safely put everythign back and quickly explain to me the issue
Bernard Chua
Jan 18, 2022 Report
We have been customers for more than a decade and this company never disappoints. We lost heat in the dead of winter and they sent over a technician at 1am to fix the problem. I don't write reviews often but Reliable Oil & Heat are worth recommending.
Heather Umphrey
Dec 03, 2020 Report
Need to give priority to special circumstances. Deliveries should always be same day in emergency situations.
Lois Cathcart
Sep 08, 2018 Report
WONDERFUL TO DEAL WITH RELIABLE OIL. THIS 4TH GENERATION FAMILY OWNED BUSINESS IS TERRIFIC. THEY CARE. THE EMPLOYEES ARE THE SAME FROM YEAR TO YEAR SO THEY KNOW THEIR CUSTOMERS AND THEIR HOMES WORKERS LIKE MARIO AND DAVID KNOW WHAT THEY'RE DOING AND DO IT WELL AND EFFICIENTLY AND ARE ALWAYS PLEASANT THANK YOU, RELIABLE.