Windows and Doors – High-Quality Interior Doors, Front Doors, and Windows

alu clad timber window

How to get your Quotation

Fill in the Request A Quote Online Form and a member of our sales team will contact you shortly or contact our friendly and helpful Costello Windows sales team directly on 068 34800.

Making Savings

Costello Windows are always competitively priced, meaning great savings for our customers. Additionally Costello windows regularly run promotions, so keep an eye out to see what amazing savings you could make. Do not hesitate to give our friendly and experienced Costello Windows sales team a call, to see what we can do for you today.

Products and Brands

uPVC Polaris Windows, Palladio Composite Doors, Townhouse Sash Windows, Renaissance Doors, Passive 100 Windows, Alu-Therm 87 Windows and Aluminium Clad Timber Windows.

Company Profile

Costello Windows produces unique and beautiful A-Rated products for the residential market. We will transform your home with products that look stunning and perform to the highest standards. All our products are tested in the UK using British Standard Testing. Our window systems are designed to be aesthetically pleasing and to add a massive wow factor. We measure, manufacture and fit all products. Our fitting teams have worked for us for many years and have a wealth of experience. Costello Windows manufactures every facet of the final product in-house from a 13 acre factory located in Glin, County Limerick. We have been in business since 1979. Costello Windows employs a set of 50 skilled employees. We have a specific belief that quality, innovation and service are vital to success, every day we look to improve. Great customer service and customer care comes first at Costello Windows. For Trade companies please look at our Kit-Fab Supplies website.

Innovative Products

Costello Windows is continually developing new and innovative products. Costello Windows latest patented design is the Townhouse Sash Window. This window is designed in the style of a sliding sash window but opens in a different way. The Townhouse Sash Window does not slide up and down but rather the top sash opens out and the bottom sash open in. This gives full fire escape access and ensures that the window has a compression seal, making it airtight resulting in a high energy rating.
The Passive 100 Window has set an industry high for profile depth with a 100mm rebated window system. The triple glazed glass unit size is also an impressive 60mm. The uPVC window profile has 8 chambers, a first in uPVC Passive window design. These superb design characteristics give the Passive 100 Window its excellent thermal insulation properties and superior strength.