
About Our uPVC Bay Windows
Our uPVC bay windows are designed with modern living in mind. They offer expanded views with the classic charm of sash windows and the clean lines of casement windows.
Manufactured in Germany to your specifications, our premium uPVC windows combine durability, thermal efficiency and security with minimal maintenance requirements.
Benefits of Bay Windows
Our quality uPVC bay and bow windows bring functional and visual value to your home. They’re designed to enhance security, lower energy costs, and elevate the comfort of your Glasgow home.
More Natural Light & Ventilation
Bay windows project outward, reflecting more sunlight from multiple angles throughout the day. This makes your room feel larger, brighter and more welcoming. Their unique design enhances ventilation by allowing fresh air to circulate freely throughout your space.
Brighter & Broader Views
Bow windows offer panoramic views of the outdoors, making them ideal for Glasgow homes with scenic landscapes. They frame your surroundings as a spectacular focal point, flooding your space with natural light.
Added Living Space
Installing high-quality bay windows adds extra space to any room. The beautiful alcove can be used as additional living space, such as a cosy reading nook or a small dining area.
Compatible With Triple & Double Glazing
Double glazed and triple glazed bay windows are energy-efficient. They maintain a consistent indoor temperature for optimal heat retention and reduced heating costs. They also enhance acoustic insulation, creating a quieter and more peaceful living space. Triple-glazed bay windows are the superior choice, offering premium performance at a higher price point.

Increased Home Value
Bay windows are an attractive feature that enhances your property’s value. Traditional homes with double-glazed bay windows often stand out to potential buyers, offering a combination of style and energy efficiency that makes the property more appealing.
Frequently Asked Questions
Explore our answers to common questions about bay windows.
A bay window is a structure that extends outward from the wall, creating an alcove or a bay inside. Bay windows are popular in many architectural styles, including Victorian, Tudor and Colonial. They are typically made up of three panes. The centre window is larger and more protruding than the two angled windows.
There are several types of bay windows, including box, oriel, turret and bow windows:
- Box-shaped bay windows: A box bay is a simple, rectangular-shaped bay window commonly used in contemporary homes.
- Oriel windows: An oriel window is supported by brackets or corbels from below and projects out from the upper floors of a building.
- Bow windows: A curved bow window made up of four or more windows. The bow window has a softer, more rounded appearance.
- Turret: A bay unit that extends from the corner of a building and has a conical or curved roof.
When choosing bay window replacements for your home, consider the architectural style of your house, personal taste and budget.
Bow windows and bay windows are a good option for contemporary homes. Ornate styles, such as oriel or turret windows, are better suited for traditional or Victorian homes.
To keep your bay windows in good condition, you should:
- Clean uPVC windows regularly with a soft cloth or sponge with mild soap and water.
- Check for signs of damage on the windows, such as cracks in the glass or leaks, and repair them promptly.
- Inspect the caulking around the window frames and update it if it is cracked or deteriorating.
- Lubricate the tracks and hinges to ensure smooth operation.
Yes, you can install curtains or blinds on bay uPVC windows. However, because bay windows have a unique shape, it can be challenging to find window treatments that fit properly. We recommend custom-made curtains or blinds.
The costs typically range between £1,500 and £4,500, depending on the size, materials and complexity of the project. This estimate includes professional installation, which is strongly recommended to ensure structural integrity and safety.
For new builds, it may take between 1 and 2 hours per window, while replacement windows typically require 2 to 4 hours per window. Since bay windows comprise multiple sections, the total installation time will be longer. It’s essential to account for this when planning your project.
Reduce your heating bills with energy-efficient bay windows in Glasgow.
Call us today for German-engineered windows installed by our expert team.
RePlace Windows: Expert Bay
Window Installations in Glasgow
RePlace Windows is a premier supplier of quality uPVC windows and doors in Glasgow.
Our range is made-to-order, with various window styles, colour options and features tailored to your specifications. We have a skilled team with over 30 years of combined industry experience. Our directors continue to visit every job site to ensure top-quality service and customer satisfaction.
Our uPVC bay window installations offer:
- Bespoke Designs
- Durable uPVC & Glass
- Maximum Energy Efficiency
- Optimum Safety And Security
⭐⭐⭐⭐⭐ across 5 review platforms
Experience RePlace Windows’ top-rated service with a 10-year guarantee.
Your window to a brighter future starts here – contact us today.
Other Services
As bay window specialists, we offer a variety of UK window options, like sash and casement units. Our selection features a range of colours, sizes and designs to meet your needs without compromising functionality. Our door range includes practical patio doors and stylish French doors.
See our different windows below.
Tilt & Turn
Available in double, triple and acoustic glazing.
Sliding Sash Windows
Custom made sash windows for all homes.
Coloured Windows
A wide range of beautiful colours available.
Composite Doors
A collection of the best composite doors.
uPVC Doors
Best quality, care and research on uPVC Doors.