5 ways to winterize your home and save money on your energy bills

Cosy autumn living room setting
(Image credit: Shutterstock)

It seems like no time at all between opening your windows wide to embrace the sun’s warmth and closing them tight to keep out the draughts. So, before the cold weather bites, it’s best to plan ahead and be prepared for the inevitable winter chill.

By taking steps to winterize your homes before the temperature plummets, you’ll be one step ahead of being more energy efficient and saving money on your energy bills. Rather than seeing energy go to waste as it escapes through poorly insulated doors and windows, you’ll enjoy a warm and comfortable winter

We asked the experts to share their top 5 tips on preparing your home for the colder months, so you can stay warm and in control of your energy usage.

1. Insulate, insulate, insulate 

Loft insulation

(Image credit: Shutterstock)

Ensuring your home is properly insulated will keep the warmth in and the cold out. 

Gregory Smith, property expert at Price Your Job, says, “Consider insulating your attic, walls, and crawl spaces if they are not already insulated. A well-insulated home can significantly lower your heating bills and improve your overall comfort.”

The Energy Saving Trust says that if your home is uninsulated, you could be losing around 25% of heat through your roof. From personal experience, I know this is the case.

I live in an older property, and when I first moved in over 20 years ago, I was surprised to find the attic was the warmest space in the whole house. With inadequate attic insulation, the warm heat was rising, making the top of the house the coziest place. We quickly invested in some insulation, which we installed ourselves, and it helped keep the heat exactly where we wanted it. 

Besides insulating your attic space, the Energy Saving Trust recommends insulating your pipes and hot water tank. The added insulation layer will save you money on your energy bills and protect your pipes from bursting if the temperature drops below freezing. It’s especially worth winterizing your outside pipes, which are more at risk of bursting.

2. Seal windows and doors

Someone sealing base of window frame

(Image credit: Shutterstock)

According to the U.S. Department of Energy, windows are responsible for up to 30% of heat loss, which is a lot of heat potentially going straight out the window! 

Ryan Calvert, product expert at Hiatt Hardware explains that draughts leak cold air into your home leading to warm air escaping. This forces your heating system to work harder, raising energy bills and increasing carbon emissions. Investing in draught-proofing measures, such as storm guards and self-adhesive weather strips, can prevent warm air from scarpering. 

If applying weather strips, Calvert advises buying the correct width that is sufficiently wide enough to protect from the draught but not too wide to prevent your window from closing correctly. 

For non-opening windows, you can insulate them with silicone sealant or apply a window film, which is shrunk into place with a hair dryer. 

How to test for draughts

Calvert suggests running your hand around the window frame, or using a lighter to detect airflow — if the flame flickers, you’ve found a draught.

Smith also suggests installing window shutters to add an extra layer of insulation. As an added benefit, he says, “They can also help to reduce noise pollution and improve your home’s appearance.”

However, when insulating windows, be aware of having some time in the day to let fresh air circulate, as otherways, it could be one way you're encouraging mold in your home. Calvert says this will reduce the problem of condensation build-up leading to mold growth.

Man screwing door brush seal on bottom of door

(Image credit: Getty Images)

Just like your windows, external doors have plenty of potential gaps for warm air to escape. Calvert says, "Start by applying self-adhesive draught-proofing strips around the edges of the door, just as you would with windows."

Then, when tackling the gap at the bottom of the door, he suggests installing a door brush or door seal to prevent any unwanted warm air from getting outside. 

Randall Manufacturing Co Door Sweeps: was $36 now $29 @ Amazon

Randall Manufacturing Co Door Sweeps: was $36 now $29 @ Amazon
These aluminium and vinyl brush sweeps are designed for gaps up to 1 inch deep on external doors, helping to keep in heat and seal off dirt and dust. The door sweeps are designed with pre-drilled holes and accompanying screws to make installation easy. 

3. Maintain your heating system 

Person wearing white gloves servicing a domestic boiler the

(Image credit: Shutterstock)

Who hasn’t fallen foul of turning on their heating system to find it doesn’t work, and then find that every heating engineer is booked?

“It’s important to ensure your heating system is maintained and ready to do its job during the winter months,” says Smith. “Before the start of the heating season, have your heating system inspected by a qualified technician. They can check for any problems, clean and tune it up, and ensure it is operating efficiently.”

Regular maintenance can help prevent breakdowns and extend the life of your heating system; therefore, booking a boiler service before the cold weather strikes will save you a headache later. 

4. Cover gaps in floors

Painted baseboard and door in sage green

(Image credit: Shutterstock)

"Baseboards and floorboards can expand and contract with temperature changes, leading to gaps that let in cold air," explains Calvert. To keep the cold air out, he recommends applying hard-setting fillers that are flexible enough to tolerate movement such as mastic sealant or decorator’s caulk. 

"The beauty of these fillers is that they don’t have to clash with your decor, as they come in a variety of colors and the decorator’s caulk can be stained to match your interiors," he adds.

5. Cover your mailbox

Letter posted through the letterbox

(Image credit: Getty Images)

Although we now receive most of our mail electronically, if you have a slot in your door, rather than a mailbox outside your house, it’s a prime area for draughts. But, as Calvert says, it's often an area that is overlooked.

"Installing a new letter plate with a dedicated flap or brush can prevent heat from escaping and reduce the unwanted extra noise," he suggests.

Hopefully, with all these 5 things in place, you won't feel the chill as the winter arrives. 

More from Tom's Guide

Camilla Sharman
Staff Writer, Homes

Camilla Sharman has worked in publishing and marketing for over 30 years and has covered a wide range of sectors within the business and consumer industries both as a feature, content, and freelance writer.  

As a business journalist, Camilla has researched articles for many different sectors from the jewellery industry to finance and tech, charities, and the arts. Whatever she’s covered, she enjoys delving deep and learning the ins and out of different topics, then conveying her research within engaging content that informs the reader. In her spare time, when she’s not in her kitchen experimenting with a new recipe, you’ll find her keeping fit at the gym. In the pool, stretching at a yoga class, or on a spin bike, exercise is her escape time. She also loves the great outdoors and if she’s not pottering about in her garden, she’ll be jumping on her bike for a gentle cycle ride.  

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