We have been designing and installing windows, doors and conservatories for more than 25 years. People that know about Valley Conservatories know that we have built a reputation that is second-to-none, innovative in design and products, that not only look good, but are high quality and thermally efficient. Therefore our products reduce heating costs, reduce sound pollution and add value along with extra safety to your home.


We also provide a variety of custom design options to compliment the interior and exterior of your home, from moldings, to top capping’s, dentil moldings to various glazing options.

What ever your needs, Valley Windows, Doors and Conservatories will be more than happy to meet your requirements.

Request a no-obligation quote from us by completing the contact form and one of our team will contact you within 24-hours to see how we can help you. Or, why not visit our conservatory showroom to see the quality of our products for yourself?


In order to provide an accurate quotation, we first need to carry out a brief site survey. At this point we can offer suggestions with regards to type and design of the conservatory as well as agreeing an achievable build schedule required to best fulfil each individual solution.


To help bring your dreams into reality, our surveyors bring along a laptop computer that at the press of a button, will allow you to run through hundreds of computer design and finishing concepts in order to find an end solution, that not only match your budget but also fulfils your practical requirements, in addition to matching your dream style.

Showroom Information


Whether it is a bespoke conservatory or whether it is external doors and windows that you desire, Valley Windows, Doors and Conservatories have the design for you. Our distinctive designs and professional craftsmanship will help you turn your home into the perfect show piece for you and your family to enjoy.

Visiting our conservatory showroom to look at our fantastic range of conservatories, orangeries, doors and windows couldn’t be easier and is a great day out for all the family. Our fantastic range with some of our best selling products is on show for all to see at our Burnley showroom. We are situated in the lovely grounds of Towneley Hall adjacent to the Towneley garden centre to come along and see us and have a great family day out at the same time.

Valley Windows, Doors & Conservatories
Towneley Garden Centre
Towneley Park
Deerpark Road
BB10 4SD


Under new regulations that came into effect from 1 October 2008 adding a conservatory to your house is considered to be permitted development, not needing an application for planning permission, subject to the limits and conditions listed below.

  • No more than half the area of land around the ‘original house’* would be covered by additions or other buildings.
  • No extension forward of the principal elevation or side elevation fronting a highway.
  • No extension to be higher than the highest part of the roof.
  • Single-storey rear extension must not extend beyond the rear wall of the ‘original house’* by more than three metres if an attached house or by four metres if a detached house.
  • Maximum height of a single-storey rear extension of four metres.
  • Maximum depth of a rear extension of more than one storey of three metres from the rear wall of the ‘original house’* including ground floor.
  • eaves height of an extension within two metres of the boundary of three metres.
  • Maximum eaves and ridge height of extension no higher than existing house.
  • Side extensions to be single storey with maximum height of four metres and width no more than half that of the original house.
  • Roof pitch of extensions higher than one storey to match existing house.
  • No verandas, balconies or raised platforms.
  • On designated land* no permitted development for rear extensions of more than one storey; no cladding of the exterior; no side extensions.


Please note: the permitted development allowances described here apply to houses not flats, maisonettes or other buildings.

Where work is proposed to a listed building, listed building consent may be required.

* The term “original house” means the house as it was first built or as it stood on 1 July 1948 (if it was built before that date). Although you may not have built an extension to the house, a previous owner may have done so.

* Designated land includes national parks and the Broads, Areas of Outstanding Natural Beauty, conservation areas and World Heritage Sites.