About Williams Energy
A family-owned energy and home services company that South Shore homeowners have trusted for more than a hundred years.
Williams Energy is a family-owned energy and home services company that has served the South Shore of Massachusetts since 1919. From our home base in Braintree, we deliver heating oil and propane, install and service heating and cooling systems, and take care of plumbing and electrical work for homes and businesses across the region. One local company, one phone number, and a name your neighbors have counted on for over a century.
Our Story
The company began in 1919, when George A. Williams founded G.A. Williams and Sons. George had worked in the lumber trade in Canada and New Hampshire, so the first business was construction. His seven sons and one daughter each took on a part of the work. Lloyd ran the coal operation, John was a licensed plumber, Elliot managed the oil deliveries, and Marie ran the office, while George, Harry, Bob, and Charlie handled the building side.
From the 1920s through the 1960s, the Williams family built homes and buildings across southeastern Massachusetts and provided the trades that kept them running. Adding electrical work meant a customer could cover a whole project with one company. In the decades since, we added propane delivery and HVAC service, and those, along with the plumbing and electrical work we already did, grew into the Williams Energy you know today.
- 1919George A. Williams founds G.A. Williams and Sons
- 1920s–1960sBuilding homes across southeastern Massachusetts
- Mid-centuryCoal and heating oil delivery, plumbing, and electrical added
- Recent decadesPropane delivery and HVAC service join the lineup
- TodayFull-service energy and home services for the South Shore
Everything Your Home Needs From One Local Company
We keep South Shore homes warm, comfortable, and running. Here is what we handle under one roof.
Heating Oil
Premium heating oil and Bioheat fuel with automatic or will-call delivery, plus tank installation and service.
Heating oil deliveryPropane
Home and appliance propane, tank installation and monitoring, and our Tanks to You bottle exchange.
Propane deliveryHeating & Air Conditioning
Installation, service, and repair for furnaces, boilers, heat pumps, and central air conditioning.
Heating & coolingPlumbing
Repairs, water heater installation, drain cleaning, and fast help with frozen or burst pipes.
Plumbing serviceElectrical
Electrical repairs and installations, plus standby generator installation for storm season.
Electrical serviceOne Trusted Name
No juggling contractors. The same local company answers the phone and stands behind every job.
Become a customer
Why South Shore Families Choose Williams
You have a choice when it comes to fuel and home services, and many of your neighbors have stayed with us for generations. We earn that by making service the priority every day. Automatic delivery keeps your tank full through the coldest stretches, so there are no last-minute calls and no run-outs. When you reach out, a real person answers the phone.
Heating and cooling technology keeps changing, and our technicians train to keep up with it, from high-efficiency heat pumps to natural gas conversions. We also focus on products that are cleaner and more energy-efficient, because that is what makes sense for your home and the South Shore.
Part of the South Shore Community
We treat customers like the neighbors they are, because most of them are. Williams Energy is out in the community helping raise money and support local causes, and we have done it for generations. Buying from a local family business keeps that support close to home.
Trusted by South Shore Neighbors
“Williams Energy have been completely reliable and responsive to every request, from the people who answer the phones to the technicians who provide service to those who deliver the oil. My father was a Williams client for decades and so were we.”Denis B., South Shore customer
See Williams Energy on the South Shore
A look at the family, the trucks, and the work behind a century of service.
Serving the South Shore
From our offices in Braintree and Marshfield, we cover communities across the South Shore, including Quincy, Weymouth, Hingham, Cohasset, Norwell, Duxbury, Kingston, Plymouth, Carver, and Middleboro. Coastal winters here make dependable delivery a safety issue, not a convenience, and local drivers who know the narrow back roads get fuel where it needs to go.
