Bay windows have been popular for decades, with their outward projection changing your home both internally and externally.

You can look forward to more impressive views, an increase in natural light, and lower energy bills thanks to the modern uPVC and aluminium materials utilised by us at DNA Window Solutions.

We’re proud to install these beautiful products throughout Devon and Cornwall, counties in which they’re incredibly popular, and we believe there’s a good reason why.

We may be biased, but these two counties are surely some of the most beautiful in the UK! Homes here are treated to breathtaking coastal views, staggering sunsets and sunrises, as well as rolling countryside in areas like Dartmoor. Bay windows are the glazing style of choice for making the most of your surroundings, and we’ll explore them in more depth below.

What is a bay window?

A bay window is a multi-panelled window that projects outward from the main walls of a building. Instead of sitting flat like a traditional casement window, a bay is formed from three or more panes of glass installed at different angles. This creates a gentle curve or a more defined “box” shape that expands your living space while drawing in far more natural light.

Bay windows differ from bow windows, which use a series of four or more narrower panes to create a smooth, arched appearance (like a bow before firing an arrow). Bow windows tend to look softer and rounded, while bays often have a more defined shape and offer slightly more internal space. We install both throughout the South West and find that homeowners in Devon and Cornwall love the character these windows bring to period terraces, seaside properties and family homes.

What are the benefits of bay windows?

Bay windows offer numerous benefits that make them such a popular choice for home improvement projects across the region.

Panoramic views and more natural light

Because of their larger panes of glass and outward projection, bay windows pull in light from multiple directions. This reduces the need for artificial lighting during the day and creates brighter, more uplifting rooms. The shape also frames panoramic views, making the most of Devon’s green landscapes or Cornwall’s dramatic coastline.

Additional space and design flexibility

One of the biggest draws is the additional space created inside. Bays push outwards, giving you a wider ledge or even a full window seat. That extra footprint can dramatically change how a room feels without altering the structure of your home.

Increased property value

A well-installed bay window can add kerb appeal and increase property value. Homebuyers often look for features that make homes feel more spacious and inviting. Bays are a classic architectural feature that stand out for all the right reasons.

Which materials are used for bay windows?

At DNA Window Solutions we offer uPVC bay windows and aluminium bay windows, both available in various configurations and finishes. Each material has its own advantages, and the right choice depends on your home’s style and your personal priorities.

uPVC bay windows

uPVC (unplasticised polyvinyl chloride) is a durable, low-maintenance synthetic material widely used across the UK for windows and doors. It sits at the top of the list for popularity thanks to its excellent thermal insulation, affordability and long-lasting performance.

Beyond bay windows, uPVC is commonly used for doors, guttering and cladding because of its strength and resistance to weather.

Our uPVC bays are made from lead-free, multi-chambered profiles that act as a natural insulator, helping to reduce heat transfer and keep your home warm in winter and cool in summer.

Choose uPVC if:

• You want an excellent choice for energy savings
• You prefer minimal upkeep
• You want a wide range of colours and foils
• You’re looking for a budget-friendly option

Aluminium bay windows

Aluminium is a strong, lightweight metal that’s used for everything from window frames to commercial space construction. It’s incredibly durable, slim and modern in appearance, making it ideal for homes with contemporary architecture.

Because aluminium frames are naturally stronger, they support larger panes of glass and create slim sightlines that maximise your view.

Choose aluminium if:

• You want a modern bay window style
• You prefer slim frames and larger glass panels
• You want long-term durability
• You like a modern or minimal look

What can you use the extra bay window space for?

Bay windows are known for giving you extra room, even if the increase seems small on paper. That extra depth can have a surprisingly big impact on your living space.

A cosy reading nook

A cushioned window seat is perfect for reading with a view, enjoying a cup of tea or watching the world go by.

A spot for plants

Bay windows pull in natural light from multiple directions, helping indoor plants thrive. Many South West homeowners turn their bays into colourful mini-gardens.

A family play corner

The ledge and extra floor space make a great play area for children, keeping toys neatly tucked away when not in use.

A dining or breakfast spot

In kitchens or open-plan areas, the extra space can fit a small table or seating area, giving you a bright place to enjoy meals.

Bay windows from DNA Window Solutions

As a local Plymouth-based company working across Devon and Cornwall, we understand how to design bay windows that suit South West properties. Our expert team installs uPVC and aluminium bays in a huge variety of colours including English oak, slate grey, rosewood, cream, Chartwell green, black and many more. You can choose from double glazing, triple glazing and acoustic glass supplied by Pilkington, depending on your specific needs.

We also offer decorative glazing styles such as digital, contora, Chantilly, mayflower, florielle, tribal, reeded and others, giving you design flexibility for various architectural styles. Some are more decorative than others, giving you a choice of more natural light or privacy.

Every bay window is made to measure for a perfect fit and comes with high-security locking systems, internal glazing beads and stainless steel friction stays for complete peace of mind. Our installation process typically takes just 3 to 4 weeks and includes full support from quotation to aftercare.

FAQs

What’s the difference between a bay and a bow window?

A bay window uses three or more panels installed at angles to create a defined shape. A bow window uses four or more narrower panels for a curved appearance and generally offers a softer look.

Are bay windows energy efficient?

Yes. Both uPVC and aluminium bays can reduce heat loss when paired with quality double glazing or triple glazing. Multi-chambered profiles and tight seals improve heat retention and can help lower energy bills.

Do bay windows suit older homes?

Absolutely. Bays work well in both traditional and modern homes. We regularly install them in Victorian terraces, coastal cottages and newer builds across Devon and Cornwall.

How do I choose between uPVC and aluminium?

uPVC is ideal if you want low maintenance and excellent thermal efficiency. Aluminium is great for slim frames, contemporary looks and larger glass panels.

Who are DNA Window Solutions?

Founded by brothers Adam and David, DNA Window Solutions is a family-run business based in Plymouth. We specialise in windows, doors, conservatories, cladding and roofline products across Devon and Cornwall. Our mission is simple: provide high-quality products, friendly service and expert workmanship you can trust.

We’re committed to using premium materials, including high-performance glazing options and durable window frames. Every installation is carried out by our qualified team, who guide you through the process with transparency and care.

If you’d like to see our bay windows in person or speak to us about your home improvement plans, you can reach us at:

01752 938120
sales@dnawindowsolutions.co.uk
DNA Window Solutions, Unit 92, Christian Mill Business Park, Plymouth PL6 5DS

You can also request a free, no obligation quote online.

Main takeaways

• Bay windows create extra living space and bring in natural light
• uPVC and aluminium offer different benefits depending on your priorities
• A bay window can help improve thermal efficiency and comfort
• DNA Window Solutions provide made-to-measure bays in a wide range of colours
• Our local expert team offers friendly support from survey to installation