G.R.T Glazing specialise in windows, doors and conservatories and glazing. 

We combine the finest double glazing products with expert workmanship offering you choice and value for money. 

As glazing experts, here at G.R.T Glazing we know that the perfect set of new windows are the ideal way to improve the appearance, security and insulation of your home. 

As a double-glazing expert, we source only the finest UPVC, Aluminium and Hardwood Windows for your home, ensuring we produce and install windows for you that will meet your specific requirements. White or wood effect, chamfered or decorative, leaded glass or plain, Georgian bar or beveled, the list is endless, but the choice is yours. In addition, all our windows are full of the most up-to-date security and energy efficient features as standard.

About Us

Based in Northampton

Offering our services throughout Northamptonshire, Bedfordshire, Oxfordshire & Buckinghamshire.

Quality Workmanship

Covering all of your needs when it comes to windows, doors, conservatories and glazing.

High Level of Service

We take pride in being a business based on honesty, reliability and hard work.

GRT Glazing


For Money


Efficient Features


Quality Products


& Reliable

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