We’re Alliston’s leading window and door installation and replacement company. We specialize in vinyl windows, entry doors, siding and masonry in Alliston, Barrie and Simcoe County.

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We’re Alliston’s leading window and door installation and replacement company. We specialize in vinyl windows, entry doors, siding and masonry in Alliston, Barrie and Simcoe County.

Get a Free Quote
Weaver Exterior Remodeling Consumer Choice Award Winner 3 years - best window company



Whether your home in Alliston is located in an older or newer neighbourhood, a set of new windows will increase energy efficiency while maintaining your home’s character. Our team of experts takes care to provide you with the best possible window options to suit your specific needs. We will tailor your new windows to meet any unique window specifications, shapes or sizes.

By purchasing new energy-efficient windows, you will not only observe a drastic decrease in your heating and cooling costs, but also a significant increase in comfort levels year-round. You will also enhance the curb appeal of your home in this charming town.

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We take great pride in the work we do and how we do it.

Our valued customers demand quality work and a high level of service which, unfortunately, is a rarity in this day and age. We’ve taken it upon ourselves to elevate industry standards of professionalism, customer service, and attention to detail to where we think they should be. Using our focused, systematic approach to exterior remodeling, we’ll take your house and transform it into your dream home.

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Our Lifetime Warranty covers all window components including insulated glass, frames, sash, and hardware even accidental glass breakage. Our unique, no questions asked warranty is fully transferable at no additional charge.










Awning Windows

Awning windows are a popular window choice for homes in Alliston. Awning windows swing outward, allowing for improved air circulation while preventing rain and outdoor debris from entering the home. Awning windows are a cost-effective window choice as they increase the overall energy efficiency of the home.


Bay Windows

Bay windows are a beautiful feature for any home Alliston, as they create bright and spacious focal points. A traditional bay window features three panels extending outwards on an exterior wall. The front panel is flat and parallel to the wall, with angled side panels on the left and right sides.


Bow Windows

The rounded curves of bow windows allow for softer angles, providing an attractive curb appeal for any home in Alliston. Bow windows are similar to bay windows with four or more panels extending outwards from exterior walls.


Casement Windows

Energy efficiency and air circulation can be improved by installing casement windows in the home, as these windows provide a tight seal against humid and cold weather conditions. Casement windows are a practical window option for any home in Alliston.


Custom Windows

Whether you live in an older neighbourhood or in a newer development, our team is committed to providing you with the best possible window options to fit the unique needs of your home in Alliston. Regardless of window shape or size, our team of expert installers will fit each window seamlessly into your home.


Double Hung Windows

A double hung window has two window sashes that open from either the top, the bottom, or from both directions. With double hung windows, you can choose where air flow originates from in the home, improving air circulation more effectively than single hung windows.


Single Hung Windows

The single hung window has two sashes, with the top sash fixed in place and the bottom sash able to slide up and down. Installing single hung windows will reduce your energy costs and increase your home’s curb appeal. As single hung windows are easy to clean and operate, they are a practical window choice for any Alliston home.


Slider Windows

Slider windows will let in a large amount of natural light to your home, which is a particularly welcome benefit during the dark winter months in Alliston. These windows operate with one or two moving sashes that slide across a track. As slider windows open and close with ease, they are easy to maintain.


Picture Windows

Picture windows are an overall attractive and unique option for your home. These windows have no moving parts, and since they do not open, picture windows are very secure and energy efficient. Picture windows allow you to maximize the scenic views in your Alliston neighbourhood.



Alliston Window Installation

Our team has been completing exterior remodeling services in the Alliston area for over two decades. Our proven eight-step window installation process will ensure our team meets your budget and anticipated timeline.

Alliston Window Replacement

Our process of installing replacement windows is quick, as no exterior elements of the home need to be removed. Since the installation process is so efficient, it’s possible for our tradespeople to replace the windows in your home during all seasons. Our team will install replacement windows to fit each and every unique specification.

New Construction Window Installation

Are you building or renovating a home in Alliston? New construction windows will offer you the most options when it comes to customization. Since we install new construction windows directly into the framing of the home, the installation process is seamless, regardless of window type, location, shape, or size.

Expert Window Installation

Weaver Exterior Remodeling window installers are truly masters of the trade. Our tradespeople will ensure the window installation process exceeds your expectations. We are so confident in our window installers’ abilities that we take pride in offering our clients a complimentary lifetime warranty.


I’m thinking of updating my home in Alliston with new windows. Is there a cost to receive a quote?

Upon contacting us, we will promptly set you up for an appointment to receive an in-home quote with one of specialists - free of charge!

Will you install new windows during the winter in Alliston? How long will the whole process take?

At Weaver, we install windows all year round. We typically complete the installation process within one day.

If I replace the windows in my home in Alliston, what are the main benefits?

One of the biggest benefits you’ll notice is the decrease in your energy bills. New windows will also enhance your home’s curb appeal and increase its overall property value.

If I feel a chill entering my home in Alliston, what window type will prevent this draft?

Brand new, energy-efficient windows will significantly increase energy efficiency and comfort levels in your home. Our team will provide a complimentary energy assessment to set you up with the best possible window options.

I live in an older home in Alliston. Will new windows fit my home’s unique window shapes and sizes?

Absolutely! At Weaver, we tailor each window to accomodate all shapes and sizes. Your new windows are then installed by our expert tradespeople.

I am currently building a home in Alliston. What types of windows are most recommended for new builds?

New construction windows offer the most options when it comes to customization. These windows are installed directly into the framing of your home, regardless of window shape or size.

How long will the total process of installing new windows in my Alliston home take?

At Weaver, our team will typically complete the window installation process in as little as 5 weeks!

What type of windows will allow more sunlight to enter my home in Alliston?

Picture windows are the best option to maximize natural light. Picture windows are also a top rated option for energy efficiency.

When new windows are being installed, do any exterior elements of my home in Alliston need to be removed?

There is generally no need to remove any exterior elements of your home.

What are some of the most cost-effective window options for my home in Alliston?

Please contact a member of our team for a complimentary, in-home assessment with one of our specialists. We offer several window options to meet your unique needs.


About Alliston

Alliston is a town in Simcoe County, Ontario. It has been part of the Town of New Tecumseth since 1991. The town is a mixture of urban sophistication while maintaining the rustic charm of a rural community. Local residents are proud of their heritage and the deep roots that can be found within the community. The Banting Homestead is the birthplace to Sir Frederick Banting, the co-creator of insulin. The site has been developed into a heritage park showcasing this famous and influential Canadian.


The town of Alliston is approximately a 45 minute drive north of Toronto within Simcoe County. The primary downtown area is located along Highway 89, known as Victoria Street. Earl Rowe Provincial Park is located three kilometres west of Alliston – one of the largest provincial parks in Southern Ontario.


Alliston’s population of just over 15,000 residents marks the town as the largest community and “industrial core” of the Town of New Tecumseth. Alliston’s population has increased significantly over the past decade with more and more families and individuals choosing to make Alliston their home. This trend in population growth is expected to continue throughout the next decade, as the province has designated the community of Alliston as an Urban Growth Node.


Established in 1991, the Town of New Tecumseth encompasses the town of Alliston, villages of Beeton and Tottenham, and the Tecumseth Township. The town was initially formed as a place for local farmers to congregate, collaborate and sell their goods and products.


Potatoes are a major commodity and provide stability for the town economy. About a third of the town works at the Honda manufacturing plants. The plants were brought to Alliston in the 1980’s and employ approximately 4,600 workers between the two facilities.

Entertainment & Attractions

For nature enthusiasts, there’s the opportunity to appreciate the outdoors with a visit to Earl Rowe Provincial Park. Riverdale Park offers free concerts every Sunday afternoon during the summer months. For golf enthusiasts, Alliston is home to the award-winning Nottawasaga Inn nestled in the beautiful Nottawasaga Valley. The Circle Theatre offers the latest films in a truly unique setting – a vintage theatre dating back to 1938.

Surrounding Locations

Alliston is approximately 85 kilometres north of Toronto, surrounded by numerous smaller cities and towns including Barrie, Newmarket, Bradford West Gwillimbury, Innisfil, Collingwood, Owen Sound, Gravenhurst, Orillia, Tottenham, and Angus.



One Step At A Time Window Replacement

Fresh Spring Window Upgrade

When One Patio Door Closes, Another One Opens

Board & Batten Replacement

Custom Colour Window Project

Updating & Maintaining Old Farmhouse Charm

Old and Dingy to High Efficiency

Patio Door to Window Masonry Project

Energy-Efficient Window Upgrade

Energy-Efficient Window Upgrade


Our exceptional exterior remodeling services include windows, doors, siding, masonry and eavestroughs.

Servicing the greater Bruce, Grey and Simcoe County region.

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One-Stop Shop

Choose Weaver to handle your entire project and reduce the stress of working with multiple contractors.

Colours and Finishes

Coordinate all aspects of your renovation through Weaver to ensure a better end product.

Competitive Pricing

Choosing us to perform several services together allows us to offer competitive bundle pricing.

Customer Service

You’re important to us. We promise to go the extra mile to care for your home as if it were our own.



As the town of Alliston is a blend of the old and new, choosing to invest in high-efficiency windows will increase your home’s property value while maintaining its historic charm. This significant upgrade is an excellent way to reflect the balance between urban sophistication and rustic appeal in this quaint rural community.

We appreciate the love you have for the history of your home, which is why we are committed to providing you with the best possible window options to reflect and maintain its unique characteristics.

Please contact us by phone or email to schedule a complimentary, in-home consultation.

Weaver Exterior Remodeling

32 George Street
Barrie, ON L4N 5N3

Phone: 705-725-4977