Energy Services for Every Season in Wells, Maine




Dependable Fuel Delivery and HVAC Solutions You Can Trust


For decades, Garthwaite Energy has been the go-to choice for homeowners and seasonal residents throughout Southern Coastal Maine. Our mission is simple: to deliver consistent comfort, unmatched service, and energy solutions that meet your home’s unique needs.


Whether you’re preparing for sub-zero winters or keeping your family cool through summer heatwaves, we offer a full suite of fuel delivery and climate control services—all backed by our local team in Wells, Maine.


As a locally owned company, we take pride in being more than just your fuel provider—we're your neighbors, ready to respond with care, knowledge, and a personal touch.

Full Range of Residential Energy Services


From heating oil to propane and complete HVAC installation, we’ve built our reputation on reliable service and deep expertise. Our services are designed to keep your home running efficiently, safely, and affordably.


Explore Our Core Services

Here’s a closer look at how Garthwaite Energy supports your comfort year-round:

Propane Delivery & Service

Clean-burning, efficient propane fuels everything from home heating and cooking to water heaters and generators. We provide automatic or will-call delivery options with safety-first service.

Heating Oil Delivery

Trusted by countless Maine households, heating oil remains one of the most dependable ways to stay warm through the harshest winters. We offer competitive pricing and timely deliveries you can count on.

Kerosene (K-1)

Perfect for mobile heaters and homes without basements, K-1 kerosene is delivered safely and cleanly. It's a popular option for supplemental or backup heating.

On- and Off-Road Diesel

We supply both dyed and clear diesel for residential, agricultural, and commercial applications. Whether you're running equipment, vehicles, or generators, we’ve got the fuel you need—delivered where and when it matters.

Air Conditioning & HVAC Installation

Our certified technicians install, repair, and maintain a wide range of heating and cooling systems. From ductless mini-splits to full HVAC systems, we help you stay comfortable no matter the season.

Emergency Services (24/7 Support)

Furnace failure? No heat in the middle of the night? We’re here when you need us most. Our emergency response team is available around the clock to restore warmth and peace of mind.

Built Around Your Schedule, Your Budget, and Your Needs


We understand that no two homes—or customers—are exactly alike. That’s why we offer flexible delivery options, personalized consultations, and transparent pricing across all services.


If you're unsure what type of fuel or system is best for your home, our team will walk you through the options with no pressure. We don’t believe in upselling—just honest guidance from people who know the industry and live in your community.

Two gray air conditioning units near bushes against a wood-paneled wall.
An air conditioning unit being serviced with gauges and a refrigerant tank outside a house.

Safety, Quality, and Comfort Come Standard


Every delivery we make and every system we install meets the highest safety and performance standards. Our team is trained, certified, and equipped to handle modern energy needs while providing old-fashioned, neighborly service.


We maintain:

  • Well-maintained delivery trucks and modern equipment
  • Licensed, background-checked technicians
  • Strict safety protocols for all fuel types
  • Continued training and professional development

Let’s Make Your Home More Comfortable—Together


Whether you’re new to the area or have trusted us for years, Garthwaite Energy is here to serve. We invite you to explore each of our services in more detail to find the right solution for your home.


📞 Have questions? Call (207) 646-6911 to speak with our team or

📩 Click through to any service page to learn more and schedule a delivery.

A man in a plaid shirt and overalls inspects a white boiler, holding a clipboard.
Man in blue jumpsuit, working on a boiler, using a wrench.