D.E. Duffey & Sons is one of those rare companies you can feel comfortable doing business with because when you deal with Duffey, you know you’re being treated fairly.
You can count on D.E. Duffey to keep your family comfortably cool in the summer and cozy & warm in the winter. Our dependable service is a phone call away when you need it, 24 hours a day. Since our own employees deliver oil to your home or business, be assured that our service is courteous and timely. And with our Automatic Delivery Service, we guarantee that you will never run out of oil or we’ll give you $125 credit on your account!
If you choose our automatic delivery service and keep your account paid up-to-date, we guarantee you’ll never run out of oil. If we make a mistake and let your tank run out, we’ll give you
$125 credit on your account!
Heating Oil Cost
Reduce Your Heating Costs
Our oil is treated so it burns cleaner
We recently improved our fuel oil with a new, enhanced fuel oil conditioner, at no additional cost to our customers. Called TREAT NOW it improves performance and promotes your heating system.
- Allows for ideal combustion.
- Cleans strainers, filters and fuel lines.
- Removes water & prevents condensation.
- Inhibits corrosion of tanks and lines.
- Dissolves and prevents build up of sludge & other biological growth.
Service Area
Payment Plans
A variety of CUSTOMIZED payment plans are available to fit all budgets
To lock in pre-season pricing and other discounts, we offer Price Guarantee Contracts so customers can budget for oil costs.
Choose your plan
- Pay Online
- Flex Budget
- Budgets
- EFT
