Energy-efficient vinyl windows in a residential home in St. Thomas

Replacement Windows & Doors in St. Thomas — Premium Vinyl Windows & Steel Doors

No payment,
No interest
till 2026
Bryan Baeumler
Bryan Baeumler

HGTV Host and #1 Expert in Quality Construction and Renovations

Canadian Choice Windows & Doors are approved and recommended by Bryan Baeumler
Modern vinyl replacement windows installed on a house in St. Thomas

St. Thomas’s Trusted Window and Door Manufacturing & Installation Experts

We offer Thomas homeowners energy-efficient, high-performance windows and doors designed to enhance comfort and reduce energy costs. With a focus on innovative design and expert installation, we help transform your home into a more comfortable, stylish, and energy-smart space. Whether you're aiming to enhance curb appeal, improve insulation, or boost property value, our team delivers custom-fit products tailored to your needs. From consultation to completion, we make the entire process smooth and stress-free—offering results that look great and last for years.

Why Choose Canadian Choice Windows & Doors?

When it comes to upgrading your home’s windows and doors, Canadian Choice Windows & Doors™ stands out as the trusted partner for homeowners in St. Thomas. Here’s why thousands have already chosen us:


25-Year Transferable Warranty Backed by Local Team

We stand behind our products with an industry-leading 25-year transferable warranty. Plus, our local service teams are always just a call away —ready to support you long after installation.

Flexible Payment Plans Tailored for Homeowners

Home improvements shouldn't be a financial burden. That’s why we offer low-interest and no-interest payment options, helping you upgrade now and pay in a way that fits your budget.

Custom Designs for Every Home Style

No two homes are the same, and neither are our windows and doors. We offer a wide range of customizable styles, finishes, and configurations to match your home’s unique character.

Energy-Efficient Windows That Save on Heating Costs

Our ENERGY STAR-certified products are designed to keep your home warmer in the winter and cooler in the summer, helping you reduce your energy consumption and lower your utility bills.

Local Reputation & Thousands of Happy Customers

With years of service in St. Thomas and surrounding communities, we’ve earned a reputation for reliability, quality, and exceptional customer care. Just ask thousands of satisfied homeowners.

Hassle-Free Process from Consultation to Installation

From the initial call to the final cleanup, our team ensures a stress-free and straightforward experience. We handle everything so that you can enjoy beautiful, functional upgrades without the hassle.

Explore Our Most Popular Vinyl Window Types

Built for Southwestern Ontario’s hot, humid summers and icy winters, our vinyl windows feature rugged uPVC frames, multi-chamber insulation, and low-maintenance finishes. Below are seven customer-favorite types that balance curb appeal, airflow, and energy savings for homes in St. Thomas.


Awning Windows

Top‑hinged and opening outward, awning windows let fresh air in — even during a passing drizzle — while shielding your interior from rain. Their compact profile suits bathrooms, basements, and above-counter spots where privacy and draft-free ventilation are most important.

Casement Windows

Side‑hinged like a door, casements crank open wide to deliver maximum breeze and wide‑angle views. When latched, the sash pulls tight against the frame for superior airtightness, making this style ideal for hard‑to‑reach areas such as over kitchen sinks or stair landings.

Sliding Tilt Windows

Gliding smoothly on horizontal tracks, sliding units save interior and exterior space. A quick tilt‑in function lets you clean exterior glass from inside the house — a perfect fit for modern bungalows and busy family homes that value convenience and low upkeep.

Bay & Bow Windows

Projecting gracefully beyond the façade, bay (three-panel) and bow (four-plus-panel) configurations add architectural drama, soak living spaces in natural light, and create a cozy ledge for reading nooks, breakfast banquets, or seasonal décor.

Double Hung Tilt Windows

With two movable sashes that tilt inward, double‑hung windows offer flexible top or bottom‑venting options and effortless cleaning. Their timeless look complements both heritage cottages and contemporary builds throughout Elgin County.

Tilt & Turn Windows

Inspired by European engineering, this dual‑action design tilts in from the top for secure night‑time ventilation or swings inward like a casement for full open access. Homeowners love its blend of modern aesthetics, robust security hardware, and all‑weather sealing.

Architectural Windows

For gables, stairwells, or any wall that deserves a statement piece, our custom-shaped windows — round, arched, triangular, or virtually any geometry — highlight unique rooflines and flood interiors with daylight, while meeting the same stringent energy-efficiency standards as our standard units.

Step-by-Step Window Replacement Process


  • 1 Project Kick-off
    Initial discussion to understand your project needs and outline the best solutions.
  • 2 On-Site Consultation
    Precise measurements and personalized material selection tailored to your space and preferences.
  • 3 Project Validation and Scheduling
    Final review and approval of the custom design, with production and installation dates confirmed.
  • 4 Production
    Manufacturing of your custom solution using selected materials and strict quality standards.
  • 5 Installation
    Professional installation by certified technicians, followed by a thorough inspection and warranty support to ensure lasting performance.
1.  Project Kick-off
Initial discussion to understand your project needs and outline the best solutions.
2.  On-Site Consultation
Precise measurements and personalized material selection tailored to your space and preferences.
3.  Project Validation and Scheduling
Final review and approval of the custom design, with production and installation dates confirmed.
4.  Production
Manufacturing of your custom solution using selected materials and strict quality standards.
5.  Installation
Professional installation by certified technicians, followed by a thorough inspection and warranty support to ensure lasting performance.

Featured Window and Door Series Available

DraftLOCK Slim Contour Series

draftLOCK™ Slim Contour — Sleek and Modern

This series features a clean, minimalist frame with maximized glass area, offering more natural light and a modern aesthetic. Ideal for contemporary homes looking to boost curb appeal and interior brightness.

DraftLOCKplus Slim Contour Series

draftLOCK™ Plus Slim Contour Series

Engineered for enhanced insulation and strength, the Plus series takes the sleek profile of the Slim Contour line and adds triple-pane glass options for maximum energy efficiency and noise reduction.

Euro Series

draftLOCK™ Euro Series — Classic Elegance

Inspired by European design, this series blends timeless beauty with innovative tilt-and-turn functionality. It’s perfect for homeowners seeking both charm and versatility.

Entry Door Systems

draftLOCK™ Entry Door Systems

Our entry doors are built for security, style, and performance. Choose from a wide range of customizable options including decorative glass, textured finishes, and durable materials to make a lasting first impression.

Patio Doors

draftLOCK™ Patio Doors

Designed to connect your indoor and outdoor living spaces, these sliding or hinged patio doors offer smooth operation, excellent thermal performance, and stylish finishes to complement any home.

DraftLOCKplus

Advanced Window Technology for Maximum Efficiency

At Canadian Choice Windows & Doors™, we combine innovation with performance to deliver windows that do more than look great — they work hard to keep your home comfortable, efficient, and secure. Our advanced window technology is specifically designed for local climates, providing year-round protection and savings. One of the key features of our energy-efficient windows is Low-E (Low Emissivity) coating technology — a virtually invisible layer applied to the glass that reflects heat while allowing natural light to enter. This coating helps keep your home warmer in the winter by reflecting indoor heat inside and cooler in the summer by blocking harmful UV and infrared rays. The result? Lower energy bills, reduced fading of interior furnishings, and a more consistent indoor temperature throughout the seasons.

Leak-Proof Performance

Our precision-engineered frames and fusion-welded corners ensure a tight seal that prevents air and water infiltration. Say goodbye to drafts, moisture damage, and inconsistent indoor temperatures.

Energy-Efficient Glass Units

Every window is equipped with high-performance Low-E and argon gas-filled glass units that reflect heat in the summer and retain warmth in the winter, helping to reduce your energy bills and carbon footprint.

Optional Foam Insulation

Foam insulation will increase the thermal efficiency of the window.

Premium Hardware and Durable Frames

Built for longevity and everyday use, our windows feature heavy-duty hardware and multi-chambered frames designed to resist warping, fading, and wear, ensuring your windows remain functional and look like new for years to come.

DraftLOCK™ Polymer Spacer System

Designed for consistent window performance durability.

Eco-Friendly & Recyclable Materials

We care about the environment. That’s why our windows are manufactured using sustainable, recyclable vinyl materials that don’t compromise on strength, insulation, or appearance.

Maximum Strength Profile Corners

For increased strength, all frame and sash corners are fusion welded throughout.

Super Efficient Frames & Sashes

Multiple-chamber frames and sashes ensure greater thermal efficiency and excellent soundproofing.

Slim Contoured Design for Contemporary Look

Contoured design creates a more modern aesthetic and feel.

How Much Does It Cost to Replace Vinyl Windows in St. Thomas?

The cost of replacing vinyl windows in St. Thomas varies depending on several key factors. These include the size and style of the windows you choose, the number of units being replaced, and any additional features like custom finishes or enhanced energy-efficiency options. Installation complexity and the condition of your existing window frames can also affect the overall price.

At Canadian Choice Windows & Doors™, we understand that every home is unique. That’s why we offer free, no-obligation consultations to assess your specific needs and provide personalized, transparent estimates. Our goal is to help you find the best window solutions that fit both your style preferences and budget, with no surprises along the way. Contact us today to schedule your consultation and begin enhancing your home’s comfort and value.

Architectural windows $700 – $3,200
Tilt and Turn Windows $800 – $1,500
Double Hung Tilt Windows $500 – $1,000
Bay windows $3,000 – $5,000
Bow windows $3,000 – $5,000
Sliding tilt windows $500 – $1,000
Casement windows $500 – $1,000
Awning windows $500 – $1,000
Stacking Patio Doors $6,000 – $20,000
Sliding Patio Doors $2,000 – $6,000
Bifold Patio Doors $10,000 – $30,000

Real Customer Reviews & Testimonials from St. Thomas Residents

10
10

Canadian Choice Windows & Doors exceeded my expectations! The team was professional and efficient, and the new windows have made such a difference in my home’s comfort and energy bills. Highly recommend!

10
10

From the initial consultation to the installation, everything went smoothly. The custom door we ordered fits perfectly and looks fantastic. Great local company with a strong reputation.

10
10

I love the variety of colours and finishes available. It was easy to find the perfect match for my home. The installers were friendly and respectful of my property. Very satisfied!

10
10

The energy-efficient windows have noticeably reduced our heating costs during the winter. Plus, the quality and craftsmanship are outstanding. I would definitely choose Canadian Choice again.

10
10

A seamless experience from start to finish. The staff answered all my questions and helped me pick the right products for my home. The installation crew was quick and professional.

Frequently Asked Questions About Window & Door Replacement

How long does the window replacement process take?

The timeline depends on the number and type of windows or doors being replaced. On average, most standard projects take one day. Custom orders may require additional time for manufacturing. Our team works efficiently to minimize disruption and ensure a smooth installation process.

Do I need a permit to replace my windows in St. Thomas?

In many cases, a permit is not required for standard window replacements that do not alter the size or structure of the openings. However, if you plan to change the dimensions or make structural modifications, a permit may be necessary. We can guide you through local regulations and handle permit applications if needed.

Are your windows energy-efficient?

Yes, all our windows are designed with energy efficiency in mind. They feature Low-E coatings, multi-chamber frames, and insulated glass units that reduce heat loss in winter and heat gain in summer. This helps lower your heating and cooling costs while improving indoor comfort year-round.

Can I finance my window or door replacement?

Absolutely! We offer flexible financing options tailored to suit different budgets. Whether you want to pay over time or in installments, our financing plans make it easier to invest in quality windows and doors without straining your finances. Ask us about current offers and application details.

How do I know which window type is best for my home?

Choosing the right window style depends on your home’s architecture, your personal preferences, and functional needs such as ventilation and ease of cleaning. Our team can provide guidance and show you samples to help you make the best choice.

Will replacing my windows increase my home’s value?

Yes, installing modern, energy-efficient windows can significantly boost your property’s market appeal and resale value. New windows also enhance curb appeal and reduce maintenance, which are attractive benefits for potential buyers.

How do I maintain my new windows and doors?

Our vinyl finishes are designed to be low-maintenance. Regular cleaning with mild soap and water is usually sufficient. Avoid harsh chemicals or abrasive tools to keep the surfaces looking new. We also provide care instructions specific to your product.

Are your windows covered by a warranty?

Yes, all our windows and doors come with a comprehensive 25-year transferable warranty that covers manufacturing defects and performance issues. We stand behind the quality of our products and provide local service support for peace of mind.

Southern Ontario:
416-800-8834
Edmonton:
780-651-7002
Winnipeg:
204-272-8117
Vancouver:
604-229-1747
Dartmouth (NS):
902-707-2023
Amherst (NS):
902-445-9365
Bridgewater (NS):
902-442-7627
Berwick (NS):
902-442-7560
Truro (NS):
902-442-6112
Charlottetown (PE):
902-707-2938