Miller Oil Company

Business Details

50+ Years

experience

Emergency

services

Trusted HVAC Services in Enfield, CT

Miller Oil Company has been a trusted name in home comfort solutions for over 80 years, serving Enfield, Connecticut, and surrounding areas. Founded in 1939, our family-owned business combines four generations of expertise with a commitment to quality service and customer satisfaction. We specialize in heating and cooling system repairs, installations, and maintenance, offering solutions for oil, gas, propane, and electric systems. Our NATE-certified technicians provide 24/7 emergency service, ensuring homes and businesses remain comfortable year-round. We deliver heating oil with precision and reliability, supported by automatic delivery programs and price protection plans.

Our comprehensive service contracts cover preventative maintenance, parts, and labor, backed by a team that lives in the communities we serve. We prioritize energy efficiency, offering ductless heating and cooling systems to reduce costs and environmental impact. With a focus on education, we empower customers to make informed decisions about their home comfort needs. Our dedication to excellence is reflected in our 4.9-star rating from 87 reviews, highlighting prompt service, professionalism, and transparency. As a locally rooted business, we understand the unique needs of Connecticut homeowners and strive to exceed expectations through integrity and expertise.

Services

HVAC Repair Heating Oil Delivery Ductless Systems Boiler Repair AC Installation Furnace Maintenance Emergency Service Fuel Delivery System Upgrades Preventative Maintenance

Details

Year established: 1939

Highlights and features

Family-run for 80+ years with generational expertise in HVAC systems.
NATE-certified technicians for reliable heating and cooling repairs.
24/7 emergency service for urgent HVAC issues.
Energy-efficient solutions to reduce utility costs and environmental impact.
Transparent pricing with upfront estimates and no hidden fees.

What people say

Great service Professional technicians Prompt emergency response Knowledgeable staff Reliable oil delivery

Website

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Services

HVAC Repair

Our NATE-certified technicians provide fast, reliable repairs for all heating and cooling systems, including oil, gas, propane, and electric furnaces, boilers, and AC units. We handle emergency service calls 24/7, ensuring minimal downtime during extreme weather. With upfront pricing and transparent diagnostics, we restore comfort efficiently while prioritizing long-term system performance.

Heating Oil Delivery

We deliver heating oil with precision using automatic delivery programs that monitor usage and weather patterns to prevent shortages. Our fleet ensures timely service in Connecticut, with budget plans and price protection options to stabilize costs. Customers benefit from clean, efficient fuel that maximizes system performance while reducing environmental impact.

Ductless Systems

Ductless heating and cooling systems offer zoned comfort control for homes without existing ductwork. We install energy-efficient Mitsubishi and Fujitsu units that improve indoor air quality and reduce energy bills. Ideal for additions or older homes, these systems provide quiet operation and precise temperature management with minimal installation disruption.

Boiler Repair

Our technicians specialize in oil and gas boiler repairs, maintenance, and replacements. We diagnose issues like abnormal fuel consumption, ignition failures, and excessive soot, using genuine replacement parts for optimal performance. Annual tune-ups under our service contracts extend system lifespan while ensuring safe, efficient operation.

AC Installation

We install high-efficiency central air conditioning systems tailored to home size and climate needs. Brands like Ruud and Carrier ensure durability and energy savings, with load analysis performed to size systems correctly. Our team handles full replacements and upgrades, integrating smart thermostats for enhanced control and comfort.

People

Charles H. Miller

Owner

Fourth-generation leader with decades of HVAC expertise, overseeing operations and customer service excellence.

Douglas J. Miller

Owner

Active in daily operations, ensuring technical precision and adherence to family values of integrity and reliability.

Questions

What HVAC services do you offer?

We provide repairs, installations, and maintenance for heating, cooling, and ductless systems, including boilers, furnaces, and AC units.

Do you offer emergency HVAC service?

Yes, our 24/7 emergency service ensures rapid response for urgent heating or cooling system failures.

What areas do you serve?

We serve Enfield, CT, and surrounding towns in Hartford and Tolland counties, with limited service in Springfield, MA.

Do you offer heating oil delivery?

Yes, we deliver heating oil with automatic delivery programs and budget plans for Connecticut customers.

Are financing options available?

Currently, we do not offer financing but provide transparent pricing and service contract options.

What certifications do your technicians hold?

Our team includes NATE-certified technicians trained in the latest HVAC technologies and installation methods.

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Reviews (7)

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Venisa Myles

Dec 09, 2020 Report

So I got a refill/restart 2 week ago, after that my broiler start shutting off, so I called just to see if someone could stop by and look at it, being that we are first time home owners, immediately the reception got nasty and defensive, I was like lady I just needed some help, she said ok and hang up. I have had three refill with them and was very happy but as soon as a problem occur this is how they treat their customers. It's sad because I have a two years old at home. Very disappointed.

Steve Gasco

Oct 25, 2020 Report

I searched extensively for a company to replace my 35 year old oil/wood furnace and I wanted to add central air at the same time. I contacted 12 companies and only 6 even gave me a quote. The quotes ranged from $12000 to $24000. I finally contacted Miller Oil and was promptly called back by Russ who came by to give me a quote. He actually mailed me a straight forward quote with a price a third less than the best quote I had received.

In addition, the furnace was a Thermopride which is known to be the best furnace. The crew showed up promptly and completed the job the following morning. They were extremely professional and their work is great. I strongly recommend Miller Oil. You won't be disappointed! My new furnace and AC was installed 10 months ago and have worked beautifully. Call Miller if you want a good price, professional work with quality materials.

Mike Stephens

Nov 26, 2019 Report

A great local company with very competitive prices and excellent service. They are always friendly and helpful. I would highly recommend Miller Oil.

Als

Nov 06, 2019 Report

We just had our 31 year old boiler replaced by Miller Oil. Doug came out and gave a very reasonable estimate. Very obvious that he knew what he was doing. Didn't try to sell any unnecessary equipment. Scheduling was fast. The three man crew that installed was very professional and knowledgeable. We will definitely be using Miller Oil for our maintenance and oil needs.

Joseph Murphy

Oct 17, 2019 Report

I resently moved to Enfield CT and was looking around for a new Oil Company for delivery and oil service. I found that Miller Oil has the best oil prices around. The office staff was very polite and on point with all my questions. I had placed an order for delivery and it was delivered the very next day. I also needed a tune up on my oil fired boiler and gas Hot water heater. The staff was quickly able make an appointment for the service. The service technician was clean and left my boiler in great shape. I would recommend Miller Oil to anybody who is moving into town or who currently lives here.

Joanne Mason

Jun 26, 2019 Report

Superior and Courteous Service I contacted Miller Oil Co. Monday morning at 8:O0am because our furnace was leaking water and we had no hot water. Russ arrived within the hour and quickly diagnosed the problem and replaced the necessary parts to get our system operational again.

John Lewandoski

Dec 16, 2018 Report

Great job done by Doug Miller and his crew from Miller Oil! Would highly recommend them. Fast, efficient, timely and thorough! They removed our ancient boiler system and installed our Viessman boiler and indirect tank in just under 4 hours! Very reasonable cost for the high quality of our new system. Thanks again!