Energy-Efficient Replacement Windows in Sudbury

When you need the windows replaced at your home or cottage, you need to get in touch with a locally owned and operated company like Guardian Windows & Doors.

We provide window installation services to residents from Sudbury to Espanola including the towns of:

Minnow Lake | Gatchell | Copper Cliff | Lockerby | McKerrow | Whitefish | Walden | Drury | Denlou | And more

House & Cottage Replacements for All Windows

Guardian Windows & Doors’ team of workers has the skill and experience to remove old windows and install new Energy Star-rated windows in just about any setting. From interior windows dividing rooms to glass patio doors/windows, our window replacements will help you optimize your energy use in your home or cottage. We provide our window replacement services for:

Interior windows | Exterior windows | Patio doors | Bay windows | Vinyl windows

Airtight Windows Reduce Energy Use

Especially in old houses, windows often have air leaks that let outdoor air into your home. Depending on the season, this can raise or lower the temperature in your home when you don’t want it to. Sealing air leaks is one way to help reduce this outside air from adjusting the internal temperature of your home, but the most efficient fix is to replace your windows with newer, airtight windows. Guardian Windows & Doors hosts a vast inventory that includes energy-efficient brands to help our customers save money on their energy bills.

Call us today for more information about our window replacements from Sudbury to Espanola.








1182 Kantola Rd.

Lively, ON P3Y 1H8


Monday – Friday: 8 AM - 5 PM
Saturday: By appointment only

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