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Tel 01389 734346 Email sales@defenster.co.uk

Window, Doors and Conservatories by Defenster

Defenster is a leading double glazing company operating throughout Dunbartonshire and Greater Glasgow.

With many years of experience in all aspects of window and door installation we have grown to be trusted, referred and recommended mainly because we remain to be among the minority of glazing companies who really take pride in every aspect of what we do.

We specialise in:

Our UPVC windows are expertly designed and skilfully manufactured to provide you with high energy efficiency, all-around home comfort, exquisite beauty and lasting durability. They are extremely easy to operate and clean, they also require practically no maintenance and add value onto your home. Making an investment in our window systems will be one of the best choices you'll ever make!

Defenster supply and install doors, windows, conservatories and patio doors.
We use UPVC windows exclusively because:

Importantly, the Defenster range allows you to personalise your installation with a number of options that meet your needs, your budget and your taste and because we only employ Tradesmen not Salesmen you can be assured of the best advice without the hard sell.

Call us for practical advice today!

Click here to view our styles

Click here to view our styles