Roseview Heritage Sash Windows
Rose Collection Icon


Replacing timber windows with uPVC in a conservation area

For private dwellings within a conservation area, typically you won’t require permission to change your windows. However, we would suggest contacting your conservation officer before proceeding.  

IF your property is covered by an Article 4 Directive, or has any commercial elements (including rental), permission probably will be required. Again, contact your local authority conservation officer before proceeding. 

For listed buildings, planning permission is always required. Listed status looks at traditional materials as well as aesthetics, meaning that uPVC is unlikely to be permitted except in special circumstances. 

In instances where maintaining the traditional aesthetics is of the utmost importance, we would recommend our Heritage Rose and Ultimate Rose sash windows. Both are virtually indistinguishable from timber and have already been accepted in numerous conservation areas including Torfaen Council, Isle of Wight Conservation and Lake District National Park. 

Yes, we can install PVC-u vertical sliders to match your existing timber windows. This allows you to keep the original appearance of your home whilst increasing your property’s security and thermal efficiency.

Over time, without regular maintenance, a timber window will start to jam. In the worst cases it will need to be replaced completely. Rose Collection sash windows are engineered to function smoothly year after year, so unlike timber windows, you won’t have to worry about replacing it due to sticking or jamming. 

No. The original uPVC that was developed in the 1970s and 1980s could discolour over time, but that problem has long been solved. Through stabilisers and modern extrusion techniques, today’s uPVC is guaranteed not to discolour.

The old reasoning behind choosing uPVC over timber as a material was the maintenancefree practicality and lower cost, while there was an acceptance that the aesthetics would suffer.  

Times have changed! There have been many design developments over the years – often instigated by us – to improve the aesthetics of uPVC. Through our experience and consultation with various conservation departments we have engineered our windows to keep the maintenancefree aspect and practicality while building in the period feel of an original timber sash. In fact many neighbours of installations comment believing they are in fact timber! 

We are Roseview Windows, and we are the sole manufacturers of the Rose Collection. 

We have been manufacturing our own windows since 1977. In 1985 we were the first company in the UK, and the world, to specialise in manufacturing uPVC sash windows. 

Based in Olney, Buckinghamshire and with more than 100 staff, we’re now using a combination of advanced manufacturing techniques and hand finished joinery to produce the industry’s leading suite of timber-alternative sash windows. 

We have a network of approved installers throughout the UK who are experienced in the field of sash windows and with our products.

All our Approved Installers are fully independent – they are not part of Roseview. As such your quote, contract, survey, installation and aftersales will all come from them. However, they are all companies we have dealt with for a long time, and who we trust.

Before becoming an Approved Installer a company must have traded with Roseview for at least a year, a be a member of a certified Competent Person Scheme (usually FENSA or CERTASS). As an Approved Installer we offer comprehensive product training, and we constantly monitor each company’s performance and customer satisfaction.

You can either arrange for a free appointment with one of our approved installers or alternatively for an `indicative quotation’ if you send through approximate sizes and details of your project, i.e. ‘replacing original timber sash’, we can pass through to an approved installer who can provide the indicative quote. Alternatively, try our sash window designer online to get a quote for your own design.

The sash window designer is software we are developing which allows you to design your own sash windows for your project.

Not only does this allow you to explore the options available to help you make the decision easier, but you can also send through your design for an indicative quote and a free appointment.

Try out the sash window designer here.

Our approved installers have samples for you to view, please send through an enquiry on find an installer page to arrange viewing.

Alternatively, you are more than welcome to visit our showroom in Olney, Buckinghamshire, where we can show you our windows, discuss your project and put you in touch with your local Approved Installer. 

Offcut requests can be made here.

Still Have Questions? Send Us a Message

* indicates required fields