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Flush Sash

Benefits of the Logik profile:

LOGIK understands how important it is to have the perfect windows for your home. Especially windows that will keep you warm all winter and keep you cool all summer. Our Logik Flush Sash Windows are designed to do exactly that. Giving you the ultimate choice of energy efficent windows with a high level of security and unreal style options. With a range of colour options these windows are designed to be functional yet stylish, suitable for any home. 

  • Modern, Clean, Smart & Fresh Look
  • Thermally Efficient
  • Great Alternative from Timber Windows
  • Reduced Energy Bills
  • Low Maintenance 

A-rating for energy efficiency

Helping you meet customer demand for windows that keep more heat in.

Leading technical performance

Cutting-edge engineering technology delivers superb air tightness plus thermal and noise reduction performance.

Wide colour palette

Logik is available in 14 different colours please see our brochure for more details.

Sustainability as standard

More than half the material used to manufacture the Logik profile is recycled post-consumer UPVC.

10-year guarantee

Logik is the first major PVC-U window and door system to offer the reassurance of a 10-year guarantee.

Fast and easy

All our systems are specially designed for quick, hassle-free fabrication and fitting.

Nationwide distribution networks

You can be sure that your projects are completed on time and in full.

Specialist technical support

We’re always happy to help with advice on design, fabrication and fitting.


Fully accredited by the British Board of Agrément (BBA), British Standards Institute (BSI) and approved by the Association of Chief Police Officers' Secured by Design initiative.

Free No Obligation Design & Survey

We want to make sure that the end to end process of buying your Composite/CCD/, Doors, Sunroom or Conservatory, is easy and pain free, we offer a FREE no obligation consultation to discuss your ideas and needs. We can give help and advice on everything from your choice of frame colour, glass options to planning permission and architectural drawings.

It's as easy as 123

  1. Click, email or call us
  2. We can discuss your needs and if required visit your property to take measurements
  3. Think over your options and contact us again if you want to proceed

We never use high pressure sales tactics, we give advice, survey then leave you to decide

Why Choose Us?

We pride ourselves on customer satisfaction, which means we will strive to help you through your project from start to finish, you can buy with confidence knowing that we have surpassed the expectations of the "buy with confidence" Scheme ran by local authority trading standards departments, you can see real examples of our products and services in our gallery page and read our verified testimonials on the testimonials page to see what real customers are saying about Clyde.

We hold multiple Awards (Scottish Home Improvement Award) &(AI Business excellence awards) for best UPVC Windows and Conservatory Company.

Product Quality

We are not only an installer of UPVC Windows, Composite Doors & Conservatories, we manufacture the end product at our main site in Central Scotland, we believe that quality is important therefore we only use what we believe are the best materials in all our Windows & Doors, to find out more about these materials please contact us.

Logik Flush Sash Windows

Flush Sash (black)
Flush Sash Frame (black)

Flush Sash Window 2
Flush Sash Frame (check colours avaliable)

Flush Sash Window 3
Flush Sash Frame

window core
Core of the Windows

House External
External of House (Flush Sash Windows)

House External
Internal of House (Flush Sash Windows)

Get the best price first time - No sneaky sales tactics - Everything we do is "black and white".