DL Windows, Door and Window Specialist, Garristown, Co. Dublin

Award Winning uPVC Windows & Doors since 1995

DL Windows is a 100% Irish manufacturer, supplier and installer of uPVC windows, doors and conservatory roofs. Directed by Danny Lee, we have manufactured and supplied quality windows and doors to domestic and commercial clients in the Leinster area for over 20 years.

Our windows and doors are 100% produced in-house at our premises in Garristown, North Co. Dublin. They are hand built which gives us more control over quality. And because we manufacture them, we're fully accountable for them from design to final installation. We give a full, written warranty for your windows upon installation.

Our Range

We manufacture, supply and fit:

  • PVC Windows
  • Sash Windows
  • Front Doors
  • Conservatories
  • Roof Lights
  • Roof Windows
  • Bi-Folding Doors
  • Aluclad Windows & Doors

Aluclad Suppliers

We supply the aluclad lift and slide patio doors. This is the largest patio door supplied in Ireland and is carried by very few companies

A-Rated By BFRC

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Full Written Warranty

We provide a full written warranty on installation. Because we manufacture them, we're fully accountable for our windows.

Your Choice Of Colours and Designs

As you'll see from our portfolio, we're versatile. Choose from our large selection of designs or we'll work with you to create a bespoke window or door.

Colour Concepts

uPVC doesn't have to be white. We supply custom painted windows, doors and frames in a wide variety of colours with a 5 year guarantee on colour

Accredited Duraflex System

We build our windows using the brand leading Duraflex profile. With Duraflex, you are assured that your windows are free from defect and discoloration, will remain in excellent condition for a life time and best of all are A-rated by the British Fenestration Rating Council.

HRI Incentive

We are registered with the HRI Incentive Scheme. That means you can claim 13.5% VAT back on your new windows or doors.

Visit Our Showrooms

See for yourself what we offer at our showroom. Just email or phone us to make an appointment in advance, so we have the time necessary to discuss your project, without being rushed.

Get In Contact

Get in contact to discuss your project with us. We'll be happy to meet to explain all the options open to you.

Our Services

  • Door Equipment
  • Doors
  • Windows

Photos Of Our Work

PVC Windows Dublin

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We use the accredited Duraflex system to build our PVCu windows so you are assured that your windows See full gallery >>

Sash Windows

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Vertical sliders or sash windows look great, especially on an older or period house. We have recently See full gallery >>

Front Doors

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As you'll see from our photo gallery below, we offer an extensive range of doors. Each door can be provided See full gallery >>

Lift & Slide Patio Doors

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The climatec aluclad lift & slide patio door was designed and manufactured in Ireland to cope with our See full gallery >>

More Patio Door Ideas

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As well as our lift and slide patio doors, we provide a variety of patio doors including French Doors See full gallery >>

Roof Lights and Roof Windows

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A roof light is a great non-invasive solution to allow light into your home, brightening up even See full gallery >>


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Our complete conservatories, including windows, are solely manufactured by us, giving us total control See full gallery >>


Find out about company insurance, project process aftercare by looking at our frequently asked questions page.

Our Map

Find projects we've done in your area. Check out our map >>

Our Customers Say

First Class Quality

No hard sell, just a level of professionalism and honesty which was exactly what I was looking for.

Peter Joyce from Clontarf, Dublin .. See full testimonial

Hardworking, Pleasant, Cooperative

We would be very happy to agree to give DL Windows a reference to anyone (in fact we have just done so ...

Pat and Terry MacManus from Skerries, Co. Dublin .. See full testimonial

Excellent Customer Service

The customer service has been excellent and the price was competitive.

Natalie from Balbriggan, North Co. Dublin .. See full testimonial

I'm Saving A Fortune!

I am delighted with the job and I would highly recommend DL Windows..

Sinead Nolan from Mornington, Co. Meath .. See full testimonial

Frequently Asked Questions

Find out about company insurance, project process aftercare by looking at our frequently asked questions page.

Find Projects By Area

Find projects we've done in your area. Check out our map >>

Contact Us

Get in touch with us by phone or email. Contact us now >>