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uPVC Windows

The benefits of uPVC Windows

  • Virtually maintenance free - won't rot, rust or fade
  • Tested and Certificated with an approved energy rating
  • Provide improved safety and security of your home
  • Long lasting and reliable
  • A wide range of styles and colours to compliment your home

uPVC windows and double glazing can dramatically enhance the warmth and security of your property, whilst also creating a modern, visually appealing finish. Highly durable, uPVC is incredibly low-maintenance and many households benefit from its easy to preserve, wipe-clean surface.

We offer an extensive selection of uPVC windows, available in a variety of styles and designs, and they all feature the following advantages:


  • Delivery in approx. 7-10 working days*

  • Compliant with Document 'L' (Part 'L') of Building Regulations

  • Internally Beaded

    = Security & Ease of Installation
  • 5 Chamber System

    = Strength & Thermal Efficiency
  • Planibel 'A' Glass

    = High Thermal Efficiency
  • 28mm Double Glazing

    = incorporating Warm Edge Spacer Bars = Sound Insulation & Excellent Thermal insulation properties
  • 70mm Profile Thickness

    = Ease of Installation
  • Key Locking Handles

    = Security
  • 10 Year Guarantee

    (Please see our Terms and Conditions)
  • Windows and Doors Installation Instruction Windows and Doors Installation Instruction

Made to Measure uPVC Windows from Dunster House

As highly experienced double glazing window manufacturers, you’ll be sure to find the finest products for the best value here at Dunster House. Although we supply affordable and cheap uPVC windows, don’t be fooled by the price. Our uPVC windows supply only uses quality materials to ensure incredible thermal efficiency, security, durability and ease of installation. Get an instant bespoke quote today to buy uPVC windows that are the finest fit for you.

uPVC Windows Manufacturers UK with Real Expertise and a Range of Choice

We’re trusted uPVC window suppliers because we cut out the middle man. All of our uPVC windows are tailor-made to your specification and taste so you can be sure that you’re getting a personalised, high quality service. All of our uPVC windows feature:

  • 5 Chamber Strength and Thermal Efficiency System
  • 28mm Sound and Thermal Insulation Double Glazing
  • Key Locking Security Handles
  • 10 Year Guarantee
Here at Dunster House our double glazed windows supply takes just days to be delivered, and most orders will arrive at your door within 7-10 working days. Order from us and get your custom, made to measure uPVC windows in no time.

Guaranteed Quality and Reliability with Dunster House

At our factory in Bedford, we work to provide the highest quality service for you. For uPVC windows that give you the best safety, energy efficiency and long-lasting reliability standards, get an instant quote from us today. You can always call our dedicated customer services team if you have any questions or queries and we’ll do our very best to help you find exactly what you need.

Reasons to buy
Dunster House
Windows and
Locking -

"Mushroom head"
bolts for security.
5 Chamber System -
Internal chambers make it
harder for warm air to
Low Level Gasket
seals -
Less visible
and look neater.
100% Virgin uPVC -
So will not discolour
over time.
Fully Welded -
Provides a more
attractive finish.