Dempsey Dyer Ltd

Tel: 01977 649641

Units 11-13 Langthwaite Business Park
South Kirkby
Pontefract WF9 3AP

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Dempsey Dyer Ltd Profile

Dempsey Dyer Ltd

Founded in 1977 by brothers Tom and Bob Dyer, and today run by Tom’s son Peter, Dempsey Dyer is currently celebrating its fortieth year in business and is proud to still be a family-owned and run business. 

Dempsey Dyer is a trade manufacturer of UPVC and timber - offering an extensive range of windows, doors and conservatories including; bi-folding doors, composite doors, composite windows and vertical sliding sash windows.

Dempsey Dyer has over 30 year's experience in serving both trade and commercial customer requirements and our strong customer base means we can offer you high quality timber, uPVC and composite windows, doors and conservatories at highly competitive prices.

Sustainability and durability are two things we value highly at Dempsey Dyer. We believe in offering you only the best u-PVC and timber products available, which is why we continually re-design and improve our products as part of our 'durability by design' concept. We also ethically source our timber species in order to offer you eco-friendly timber products.

Dempsey Dyer also offer trade accounts for timber and PVCu customers ordering between 5 and 300 frames per week. When your account becomes active, you will be assigned a dedicated account manager who will be your first point of contact should any questions arise. Your account manager will keep you updated on the latest DD products as well as support you through any technical issues you may have.



The company is listed under the following categories:

Conservatories » Orangeries
Conservatories » Roofs
Doors » Timber
Windows » PVCu
Windows » Timber

Accreditations and Awards

Dempsey Dyer Ltd has listed the following standards, quality assurance or accreditations:

  • BS7950 - Enhanced Security Windows
  • BS644 - Timber Windows
  • BM Trada BFRC Rating Scheme
  • FENSA Registered Company
  • PAS23/24 - Composite, Timber Residential and UPVC Residential & French Doors
  • BS7412 - PVCU Extruded Hollow Profile Windows
  • BS7950 - Enhanced Security Performance of Windows for Domestic Applications
  • BSI Registered Company BS EN ISO 9001:2008 - Quality Management System
  • Secured By Design
  • Energy Saving Recommended
  • Contructionline
  • CHAS Accredited Contractor

Brand and Trade Names

The company supplies products under the following brands or trademarks:

  • Dempsey V
  • Residence 9
  • Beaumont
  • Dempsey II


The following keywords are relevant to this company:

uPVC Doors, U-PVC, uPVC Windows, Residential Doors, Timber, French Doors, Bi-folding Doors, Bifolds, Folding Sliding Doors, Patio Doors, Tilt and Slide, Secured By Design, uPVC Conservatories, Timber Windows, Timber Doors, Timber Conservatories, Composite Doors


Dempsey Dyer Ltd Products and Services

Beaumont Composite Window

Currently available in open out casements only, the Beaumont composite window has been designed to bridge the gap between uPVC and timber products. It eliminates the common problems associated with traditional timber products, such as affordability and maintenance, whilst maintaing the aesthetic value of a timber... [Read more]


Bi-folding Doors

Also referred to as sliding folding doors, our range of U-PVC and timber bi-folding doors are guaranteed to grab consumer attention and help you win new business. UPVC Bifolds Dempsey Dyer uPVC bi-folding doors are fabricated using the Deceuninck 3000 series contemporary... [Read more]


Composite Doors

Available in a wide selection panel designs, Dempsey Dyer composite slab based door products are also available in a wide variety of colours to suit any requirement. Beaumont Composite Doors Beaumont composites are our premium composite door solution - combining... [Read more]


Monorail Patio Door

Products that let the light in and open up a space are very popular in the domestic sector and it’s these types of products you should be offering if you want to take full advantage of the opportunities in this market.   One such product is the Monorail Patio Door, a premium... [Read more]


Residence 9 Windows

The innovative design of the Residence 9 UPVC window window range replicates the features of a 19th Century flush sash timber window and is the ideal product for consumers seeking timber alternatives. Available in the Graduate collection of authentic colours and finishes, Residence 9 windows can be coloured... [Read more]


Timber Conservatories

Dempsey Dyer timber conservatory roofs provide the same benefits as our timber windows and doors, encompassing all three to create a conservatory solution that is tailored to your needs. We manufacture and supply two types of timber conservatories, the Dempsey II and the Petworth, for both domestic... [Read more]


Timber Doors

Dempsey Dyer timber doors can be manufactured to satisfy the most bespoke requirements - providing you with a comprehensive range of design options. Fabricated using Accoya, European Oak, European Redwood or Sapele timber species, our full range of doors are available in a wide range of translucent or opaque... [Read more]


Timber Windows

Dempsey timber windows are all tailor made by our experienced craftsmen to ensure complete satisfaction of our 'durable by design' criteria - providing you with a high quality timber window that will deliver on both security and aesthetics. Fabricated using Accoya, European Oak, European... [Read more]


UPVC Conservatories

Dempsey Dyer PVCu conservatories combine our range of windows and doors to provide you with a tailor-made design. We can manufacture and supply a range of different styles and sizes from standard 3x3 lean-to, to a fully bespoke stand-alone installation. Whatever your requirements, Dempsey can provide the solution, from... [Read more]


UPVC Windows

Dempsey Dyer manufactures high quality PVCu windows using Deceuninck's 2500 Chamfered, 2800 Decorative and 3000 Zendow profiles suites - allowing us to completely satisfy your project requirements. Our full range of u-PVC windows are available in a variety of colours and foiled/woodgrain effects... [Read more]


Dempsey Dyer Ltd News Dempsey Dyer Ltd RSS News Feed

Windmill Windows installation saved by dedicated Dempsey Dyer

Windmill Windows installation saved by dedicated Dempsey Dyer - 16/11/2017

Yorkshire fabricator Dempsey Dyer has gone the extra mile to help a valued customer complete a lucrative job in an Oxfordshire conservation area. Respected local installation firm Windmill Windows had been called on to refurbish a property in a historically sensitive part of the county. Together... [Read more]


Brand new website sees Dempsey Dyer gear up for growth

Brand new website sees Dempsey Dyer gear up for growth - 21/08/2017

Respected fabricator Dempsey Dyer has unveiled a brand-new website to coincide with its fortieth anniversary. The cutting-edge site, designed by industry marketing specialists Purplex, showcases the vast range of quality timber and uPVC windows, doors and conservatories the Pontefract firm has to offer. Structured... [Read more]


Dempsey Dyer strengthens door range with Invisifold

Dempsey Dyer strengthens door range with Invisifold - 28/06/2017

Yorkshire’s Dempsey Dyer has added to its extensive offering with the innovative Invisifold slide and swing door.  Renowned for its versatility, the Invisifold system converts a conventional patio or French door into a highly-flexible, sliding and folding solution, allowing homeowners... [Read more]


BSI overhaul for one of Britain’s most accredited fabricators

BSI overhaul for one of Britain’s most accredited fabricators - 13/06/2017

Dempsey Dyer, one of the UK’s most accredited, quality conscious fabricators, has adopted BSI standards across the board after a period of using several different schemes. The firm is now able to supply products that meet BS644 for enhanced security timber windows and doors, BS7412 for enhanced security... [Read more]


Dempsey Dyer takes Heritage Flush Sash to the next level

Dempsey Dyer takes Heritage Flush Sash to the next level - 05/06/2017

In late 2016 Yorkshire fabricator, Dempsey Dyer launched the Deceuninck Heritage Flush Sash window available with welded transoms, mullions and frames. The company is now delighted to offer the same window fully mechanically jointed. The Heritage Flush Sash is a uPVC sash window that balances modern performance... [Read more]


Dempsey Dyer Ltd Videos

Click on a link or a video thumbnail to view a video.

The Beaumont Window by Dempsey Dyer

The Beaumont Window by Dempsey Dyer

Peter Dyer gives an introduction to the Beaumont Window, a composite uPVC window made to match the beautiful aesthetics of real wood, from the timber window specialists.

View The Beaumont Window by Dempsey Dyer

Dempsey Dyer Ltd Locations

Locations associated with Dempsey Dyer Ltd.

Dempsey Dyer Ltd

Units 11-13 Langthwaite Business Park
South Kirkby
Tel: 01977 649641


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