Cost effective and stylish solutions for period properties

We offer a modern UPVC Vertical Sliding Sash Window with all the charm and character of authentic traditional timber Vertical Sliding Sash Windows but with the low maintenance of UPVC double glazing.

Our stunning range of uPVC Sash Windows are like all our windows and doors, each one is custom made for you and your home. All of our Sash Windows come with a comprehensive 10-year insurance backed guarantee for total peace of mind.

Coloured uPVC Sash Windows in Hampshire

Our finishes include Rosewood, Light Oak and White. You can also choose to have white on the interior and any woodgrain to the exterior, creating a light modern feel on the inside with a traditional look to the exterior.



Why choose uPVC Sash Windows from IWS?

10 year sash window guarantee Our stunning range of double glazed uPVC Sash Windows are custom made for you and your home. All of our Sash Windows come with a comprehensive 10-year insurance backed guarantee for total peace of mind.

Sash windows

We supply and install quality uPVC sliding sash windows in Fareham, Portsmouth, Southampton, Chichester, Gosport, Winchester and throughout Hampshire and West Sussex, with great prices, an enviable reputation and a huge range of windows that can truly transform and add value to your home.


Standard Specification

We pride ourselves on the quality of our products, level of customer service and make ordering our windows quick and easy while retaining:-

Factory glazed 24mm 'Low E' glass units
 Internally beaded using sculptured bead
 Each sash option is post co-extruded
 Factory tensioned balances
 Tilt restrictors
 Fully reinforced
 Equal sight line with Low Line gaskets
 Available in white, rosewood or light oak
 Highly durable, virtually no maintenance uPVC
 Energy Rated Pilkington double glazed units
 High security locking
 10 year comprehensive guarantee
We also supply Timber Sliding Sash Windows

Sash windows

Character with choice

An attractive ovolo shaped bead with a choice of 3 sash options incorporating an equal sightline for the top and bottom sashes, plus a deep bottom rail for a truly traditional appearance.

In addition, you can choose from 3 Georgian bar options and add decorative sash horns. And for those who prefer a true timber appearance, rosewood or light oak finish is available.

You can even choose a timber appearance on the external face, with a white finish on the internal to maintain a light airy appearance to the inside of the room.

Your Next Steps

Request our current brochure


Speak with one of our experienced design consultants.


Request a call back
Arrange a site visit from your designer to discuss your project in detail.


Book an Appointment
Your design consultant will provide you with your completed Design Proposal which comprises of a architect’s line drawings, watercolour presentations, a detailed specification and a written quotation, which should contain all the information you need to reach a decision.


More info

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