Your South Shore Heating Oil Company
Premium, ultra-low-sulfur heating oil delivered to South Shore homes and businesses by a family name trusted since 1919.
Williams Energy is the South Shore's heating oil company, and we have kept local homes warm since 1919. We deliver premium heating oil to homes and businesses across Braintree, Weymouth, and the towns around them, with the dependable, on-time service a New England winter calls for. Many homes here run on oil because it heats a house fast and costs less than the alternatives, and our delivery, tank service, and flexible payment options make it easy to keep yours running all season.
Our Heating Oil Services
From your first delivery to the tank it goes in, we handle every part of heating your home with oil.
Heating Oil Delivery
Automatic and will-call delivery that keeps your tank full through the coldest stretches, so you never run low.
Heating oil deliveryBioheat Fuel Delivery
A cleaner-burning blend of heating oil and renewable biodiesel that lowers emissions with no equipment changes.
Bioheat fuelHeating Oil Prices
Fair, transparent South Shore pricing, with discounts for senior citizens and for paying early.
See our pricingTank Installation & Service
Inspection, service, and replacement of heating oil tanks, including modern double-walled models.
Oil tank servicePayment Options
Budget plans, autopay, and pricing programs built to fit how you want to pay across the year.
Payment optionsBecome a Customer
Switching is simple. Sign up once and let automatic delivery handle the rest all winter long.
Get startedCleaner, More Efficient Heating Oil
The heating oil we deliver is ultra-low-sulfur, which burns cleaner than the formulas used for decades. For your home that means less buildup and wear on your burner, better efficiency, and fewer service calls over the life of the system.
It is better for the air around the South Shore, too. The heating oil industry is working toward net-zero emissions by 2050, and cleaner fuels like ultra-low-sulfur oil and our Bioheat blend are a real part of getting there. You get a system that runs better and a fuel that is kinder to the environment, with no equipment to replace.
Commercial & Fleet Fueling
Williams Energy does more than home heating oil. We keep South Shore businesses running with the fuels they depend on, delivered on a schedule that fits the job. We deliver on-road and off-road diesel, diesel exhaust fluid, and kerosene for on-site heating, plus natural hardwood charcoal and coal for restaurants, caterers, home grillers, and blacksmith work.
Our commercial customers include contractors, landscapers, excavators, and any operation that needs reliable fueling. Fleet fueling keeps your trucks moving without a trip to the pump and a job left waiting.
Why South Shore Homeowners Choose Williams
Buying oil from a local family business means a real person answers when you call, and a driver who knows the narrow coastal roads gets to you on time. Automatic delivery means you never have to watch your tank, senior and early-payment discounts keep your costs down, and our pricing is clear with no surprises. When your home needs more than fuel, the same company takes care of your tank, your heating equipment, and your service plan.
Trusted by South Shore Neighbors
“Todd made my experience of dealing with oil heat for the 1st time easy. He was professional yet kind and considerate. He makes me happy that I chose Williams.”Lisa O., South Shore customer
Heating Oil FAQs
Do you offer automatic heating oil delivery?
Yes. With automatic delivery we track your usage and the weather and schedule a fill before your tank runs low, so you do not have to think about it. If you would rather call in your own orders, will-call delivery is available too.
What areas do you deliver heating oil to?
We deliver across the South Shore from our Braintree and Marshfield offices, including Weymouth, Hingham, Norwell, Duxbury, Plymouth, and the surrounding towns. You can see the full list on our service areas page.
Is your heating oil better for my heating system?
We deliver ultra-low-sulfur heating oil, which burns cleaner than older formulas. It reduces buildup and wear on your burner, improves efficiency, and lowers the emissions your heat produces.
Do you offer discounts or payment plans?
Yes. We offer discounts for senior citizens and for early payment, along with budget and pricing programs designed to fit how you want to pay across the year.