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Windows, doors & conservatories - London, Surrey, Kent & surrounding areas
Osborn Glass, 33/34 High Street,
South Norwood, London, SE25 6HA
Call Osborn Glass, London Double Glazing

Call Osborn Glass, London Double Glazing 020 8683 8406

Home » Windows » Bay & Bow Window Installer » uPVC Bay & Bow Windows

Energy-efficient plastic

You may think that because this style of window is adding more glass to your home, there’s a risk of heat loss. Usually, you’d be correct. However, with bay and bow windows from Osborn Glass, you can rest assured they come A+ rated and can be made totally bespoke.

With seals that create an airtight fit, alongside argon gas between our panels – we can promise that energy efficiency will not be compromised.

The highest levels of security

Our windows ensure that opportunists will not jeopardise your security. We guarantee this through internal glazing beads which makes sure panes cannot be removed from the outside. We try and test our locking products; rest assured with Osborn Glass.

Unique design

Plenty of colours, design capability and installation extras will be at your disposal; our suppliers are masters at creating unique windows. If you’re looking for a series of stock windows or a small supply of totally bespoke frames, we can help.

The Residence Collection

The Residence Collection was all designed in Gloucestershire at their HQ, then extruded in Wiltshire.

Their timber alternative windows, including the Residence 9, extract the key principles, shapes and dimensions from the Article 4 Conservation Area guidelines for windows and integrate market-leading technology into the design using virtually maintenance-free materials.

They now continue to add more flush window & door systems based on their knowledge and expertise of the market.

We’ve been supplying and installing their products for a while. And their timber alternative frames have left customers in awe. The design is so close to the original, from the curb, you can’t tell the difference.

John Fredericks

Established in 1970, John Fredericks Plastics have now amassed 50 years of trading with a strong record of innovation and a loyal customer base.

They’re driving force is to “raise the bar” where thermal performance, security and colour options are concerned. And the ranges that we supply, including their Halo PVC-U range, offer unique designs for you.

The John Fredericks product range is branded as the Ultimate CollectionTM. We supply and install the full range in and around South London.


As a leading trade supplier of VEKA uPVC windows, doors and conservatories, Glazerite offer one of the most comprehensive product ranges on the market.

Roseview Windows

Roseview Windows are the UK’s leading sash window manufacturer. Established in 1977, they started manufacturing uPVC sash windows for the double-glazing trade in 1985 – the first company in the UK to do so. As a result, their knowledge and experience when it comes to vertical sliders is unparalleled.

Call Osborn Glass, London Double Glazing 020 8683 8406

Window and door installations in South London and beyond

Since 1966 we’ve been supplying and installing the finest windows, doors, conservatories and more to people just like you. Most of our customers are located in London, Kent and Surrey, but we are happy to supply and install our windows right across the Home Counties, East Anglia and the Southeast. Get in touch with us today with any questions, concerns or queries and we’ll be happy to help.

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Whether you’re looking for a quote, have a question, or anything else we can help with.
Send us an email and we’ll aim to respond within 24 hours.