Home Energy
Transform my home's energy performance

Transform my home's energy performance

It’s top of almost every homeowner’s mind these days. With heating costs, on average, making up over 60% of a household’s energy bills (and rising), there’s a sustainability and comfort impact and also a financial benefit to transforming your home’s energy efficiency.

One high impact strategy is to upgrade your windows and exterior doors. Innovative options such as triple glazing and airtight fitting may not have been commonplace when your existing windows and doors were installed.

And if your home features a flat roof – often found on single-storey extensions and attached garages, then your home’s energy performance may also benefit from a warm deck insulation system.

Transform Home Comfort
A+ Rated Windows

Investing in the main structure of your home such as triple glazed windows can really help to transform your home’s energy performance. Global windows are renowned for their quality both in design and installation, so you can enjoy more comfort and warmth while reducing your carbon footprint and your heating bills.

Virtually Airtight Doors

Sealing the heat in while keeping the cold out is exactly what you would expect from a Global door. And you don’t need to compromise on style or security while transforming your home’s energy efficiency. Our composite front doors feature triple glazing as standard, are twice the thickness of others and the double sealed rebate is virtually airtight by creating an internal secondary seal. So you can feel good about doing your bit for the environment while feeling warm and secure.

Transform your home's energy performance
Transform my home's energy performance
Warm Deck Flat Roof

Our flat roofs deliver a warm deck insulation system as standard on all habitable rooms, which means your room is warmer in the winter and cooler in the summer. In addition to transforming your home’s energy performance and boosting your comfort, this solution will save you thousands of Euro on heating bills.

Your peace of mind. Guaranteed

Global free 20 year unlimited guarantee
15-20 Year Guarantee

Enjoy free servicing, free parts, free repairs for 15-20 years.

Global 15 Year Guarantee
10 Year Security Guarantee

Protecting you, your family, and your home for years to come.

Global 365 Emergency Assist service
365 Emergency Assist Service

Life happens. We’re there when you need us 24/7 365 days a year.

Global corporate sustainability

Made by us. For you

We tailor-make our windows and doors in our Glasnevin, Dublin factory – made for Irish homes, bespoke for you. This gives us complete control (yes, we’re obsessive!) over every item that leaves our factory, so you benefit from the highest quality materials and craftsmanship. We stand firmly behind our long-lasting guarantees to ensure a lifetime partnership with our customers. We really are all about you!

What our customers say
Feefo Gold Trusted Service Award 2023

Independent Service Rating based on 268 verified reviews.

30 May 2023

excellent from start to finish

From start to finish the service we received was first class. Just one little think that I think should be pointed out to customers at the start of their journey is that occasionally there will be moisture on the outside of the window in damp cool weather. Other than that the service was first class and the workers were very careful when working through out our home
M Tierney
17 May 2023

On time, had cloths on floor and stairs, worked straight through, nice men.

Yes, I would buy from them again. The salesman who came to our apt. demonstrated the window, showed all the features and wasn’t pushy. The product sold itself and has turned out exactly what we needed and hoped for.
03 May 2022

The door and fitting was carried out quickly with little fuss and no issues

The two guys were very professional and left no mess and the job was completed in good time and I was kept up to date on the progress as I was in work whilst it was going on.
Mr A Stein
27 Apr 2022

Excellent work
Mr & Mrs Kirwan
26 Apr 2022

Good communication and follow up support and yes would recommend the Global Windows team to anyone.
26 Apr 2022

I am happy with the windows. The installation was very good.
24 Apr 2022

Tidy efficient And accomodating
23 Apr 2022

Great service

Great service by the two people who put in the windows. Great communication from the office staff
Ms I Butler
22 Apr 2022

Very professional installers, who worked very diligently over the two days it took to install by new hall door and windows.
21 Apr 2022

Friendly service, job well done and very tidy.
Mr J Connor
21 Apr 2022

Excellent efficient work.

Installing of new PVC door.
W McCormack
21 Apr 2022

quick, clean, efficient and sensitive.

The service was quick, very clearly explained and painless. the men who installed the windows were very sensitive to my husband being ill and worked quickly, cleanly and left the house in excellent condition afterwards. We are very happy with the result so many thanks. we will use you again and have already recommended you to friends and neighbours.
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Book your free design consultation

Enjoy a free in-home design consultation with one of our experts and free no obligation quote.

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Start your home transformation journey today!

If I have a problem with any of my products from day 1 to 15-20 years, what do I do? If you experience a problem with your Global products, freephone 1800 31 31 32 and ask for the Customer Service Department. They will arrange for a service engineer to come out to your home at a time convenient to you. When calling, please state your Contract Number (e.g. 23000) if you have it with you at the time of calling. You can find this on your invoice, guarantee certificate or Global 365 Emergency Assist card. You will not be charged for this service call out. Materials and labour are included.
Our guarantee is completely free of charge and covers specified products for up to 20 years. We also provide a 10 year security guarantee with all of our windows and doors. This is backed by our free Global 365 Emergency Assist service, available 24/7 365 days a year.
Yes, we install a wide range of home improvement solutions including roofline, fascia and soffit and flat roofs.