• Superior Service

    You can be sure of a high quality and friendly service when you call Grant Windows and Doors, the name you can trust.

  • Energy Efficient Windows

    Carefully designed, expertly manufactured and professionally installed, our windows will be tailored to suit your specific property, style, taste and budget.

  • Supply and Installation

    We provide a comprehensive supply and installation service for a huge selection of highly durable and visually appealing uPVC products, including our ranges of windows, doors

  • High Security Doors

    Extensive range of high security, multi-point locking, maintenance free external doors.


Grant Windows & Doors is a family owned Irish company with over 20 years experience.   We specialise in the selection, supply and fit of top quality custom made uPVC Windows & Doors to individual home owners and businesses. We have one simple goal – provide excellent service to every customer!

First impressions last, and with more and more people opting for home improvements over moving house, the most cost-effective way to add real value to your property is with beautifully stylish, high security, energy efficient and bespoke uPVC windows & doors.  All offering you peace of mind while saving on your heating costs, and adding to the beauty of your home.

To receive a free, no obligation quotation please contact us and we will arrange a visit to your home to discuss your specific requirements, give advice on the products and designs that best suit your home, and answer any queries you may have.  Or visit our Showroom at Unit 11, Ryebrook Industrial Estate,
Collinstown, Leixlip, Co Kildare, W23 R229 to view our large selection of sample Windows & Doors.

We look forward to assisting you.

Why Grant Windows & Doors?
  • Our Prices include supply and fit of new frames and doors, removal of old doors and all associated finishing work
  • All our windows are fitted with our high security Shootbolt locking mechanisms, which offer locking points at the top and bottom of your windows, providing additional security.
  • Doors are supplied with anti-snap lock barrel , 10 point locking system and 4 bespoke hinges for top security.
  • All products are internally glazed, this provides extra security as the glass cannot be removed from the outside.
The Grant Windows & Doors Guarantee

10 Year Guarantee on Frames

5 Year Guarantee on Glazing Units (excludes breakages)

2 Year Guarantee on moving parts such as handles, locks and hinges


We offer a selection of practical, visually appealing uPVC windows


Our doors guarantee to complement a host of environments


View a selection of our work for our customers

What our Customers have to say!

Grants repaired a window for us it wasn’t a huge job and we couldn’t even get a quote from anyone else as they weren’t interested in such a small job. However we were taken by the professionalism and attention we got and would definitely use them again when we are replacing our windows and/or doors. Highly recommended

Great service and great quality my new windows are fab. I had to travel away while my windows were being installed so the big thing for me was having honest trustworthy people in my house while I was away. They are brilliant!!

Highly recommended, I don’t say that lightly. Had my complete home done by Grant windows and it was a pleasure from start to finish. Have since recommended to family members and have been thanked for doing so.

Would highly recommend Grant Windows and Doors, great service from start to finish, very helpful and knowledgeable when designing our front door, extremely happy with finished product, would have no hesitation in recommending Liam & Co.

Class act from start to finish.Great quality product for a fraction of the price of the big names. Much more personable experience and kept the house spotless. Workmanship was first class. Did the whole house windows and doors

Arrange Your Free Appointment Today

For more information or to arrange a free no obligation quotation, contact a member of our team at Grant Windows and Doors today