National Grid estimates it will cost you more to heat your home his winter. The energy company is estimating a 39% increase for its natural gas customers between November and March.

They said while a number of global factors are expected to lead to that increase there are things customers can do to keep their bills lower.

National Grid officials said it's important for customers to be proactive to keep their energy use down.

They said now is a good time to have your heating system serviced if it's been a while. You can also save between 1% and 3% on your annual heating bill by scaling back your thermostat one to two degrees.

Once the cold weather sets in, try to keep your blinds open during the day to let sunlight keep your home warm. You can also flip the switch on ceiling fans to rotate clockwise to push warm air down.

Finally, unplugging things like TV's and computers when you're not using them can make a difference on your bill this winter.

"Unplugging power strips.  If you're going to be going out of town for the weekend, unplugging those large electronic consumers.  Now, obviously you don't want to unplug your refrigerator, that's not what we're saying.  But things like televisions, and computers.  Things that when you click a button and it turns on, that doesn't mean it's all powered off when you think you've hit the power switch," said National Grid Communications Manager Jared Paventi.

National Grid officials said a few factors contributing to price increases include natural gas supplies and the Ukraine situation. National Grid is also reminding its customers to take advantage of the Home Energy Assistance Program.

This is a good time to apply for HEAP if you meet specific eligibility requirements. Qualification is based on household size and income.

If you're concerned about your energy bill and would like to speak with a consumer advocate, National Grid encourages you to do that, just call 800-642-4272.