top of page

Call our ZEN-thusiasts on 0117 321 5540


Bow and Bay Windows

Here at ZEN, we have a great reputation for installing high-quality bay windows across Bristol and the surrounding area.


Our uPVC bow and bay windows are designed not just to enhance the appearance of your home but also to deliver unmatched functionality and energy efficiency. Our bow and bay windows offer a perfect blend of traditional appearance and modern engineering.

These windows extend outwards from the main walls of your house, creating a spacious sill area (if a bow window) or project outwards with the internal floor following into the window bay floor (if a bay window - where your brickwork below the bay window will follow the shape of the bay window).

We can also offer flat to bow conversions, so take a conventional rectangle shaped flat window and turn it into a lovely new bow window complete with a new canopy and bow base (with gallows bracket style details etc if required).

Discover your inner peace with ZEN Windows and Conservatories.


Boy and Bay Window Specifications

Energy Efficiency and Performance

Our commitment to energy efficiency is evident in every bay window we install. Each unit is A-rated for energy as standard, helping to reduce your heating costs and carbon footprint. We can also provide options that can allow you to achieve A+ ratings and beyond. For more information, visit our Window Energy Rating (WER) page.

Weather Performance

We pride ourselves on supplying products that withstand the elements. Our uPVC bay windows are tested and certified to meet the latest British/European standards for air, water, and gusting performance, ensuring they perform exceptionally, regardless of the weather.

In choosing from our collection, you're not just selecting a window; you're choosing a commitment to quality, security, and energy efficiency.


What are uPVC bow and bay windows?

uPVC bow and bay windows are types of windows that project outward from the main walls of a building, forming an extended bow sill or walk-in bay in the room. They are made from unplasticised polyvinyl chloride (uPVC), a durable and weather-resistant material.

Read more: What is the difference between a bow and bay window?

Are uPVC bay windows energy efficient?

Yes, uPVC bay windows are highly energy efficient. They are designed with double glazing, acoustic double glazing or triple-glazing and offer superb weather sealing, protecting from the outside elements. Their design performance  helps to reduce heat loss in winter and heat gain in summer, leading to lower energy bills.

Can uPVC bay windows reduce noise pollution?

Yes, with the use of suitable glazing options, uPVC bay windows can significantly reduce noise pollution from outside, making them ideal for homes in busy areas or near main roads.

How long do uPVC bay windows last?

uPVC bay windows are known for their longevity. They typically last 30 years or more with minimal maintenance.

How do you clean uPVC bay windows?

uPVC frames are relatively low maintenance. Regular cleaning with soapy water and a soft cloth, along with occasional lubrication of the moving parts, is usually sufficient to keep them in good condition.

We found the complete service from initial enquiry and quotation through to fitting and billing to be efficient and thorough The fitters themselves were very pleasant, tidy and a pleasure to have in our home. Would thoroughly recommend Zen Windows

Sally Eccles - 1st February 2024

The whole experience with Zen windows has been fantastic start to finish. All my questions before the job were answered quickly and comprehensively, the fitters were friendly, tidy and did a wonderful job. I wouldn't hesitate to recommend them to anyone!!

Sam Ferrins - 17th January 2024

We were very impressed with Zen Windows throughout the process. We approached them to come and quote for us after reading the many positive reviews online. The initial salesman was very good. He built a rapport and listened to what we wanted.

Sarah Bird - 29th January 2024

Get in touch today

No pressure here. We believe in transparent, written quotes, giving you the space to make the right decision in your own time. And with bespoke designs tailored just for you, nothing is off the shelf.

Experience the ZEN difference. Get in touch with us today and book your free no-obligation home visit.

Follow us on 

bottom of page