The Global Difference
We’re all about you

We’re all about you

Transforming the look of your home, energy performance and security and boosting the value of your home is what we do. Our why is you. Our customers. We’re all about you. That’s the difference, the Global difference.

We’re all about you

Global’s founder, Tom Shevlin, set the bar high in 1980 when he established the company’s values of quality and customer service. The brand has continued to evolve while remaining committed to these core values. It’s all about the customer experience – before, during and after installation.

20 Year Unlimited Guarantee
Unmatched aftercare service

Most companies have hidden charges in their guarantees, we don’t.  We see every relationship with a new customer as entering a life-long partnership and offer free guarantees as added value. We want to ensure you enjoy complete peace of mind knowing you’ll receive the best level of service and care long after installation.

Trusted for 44 years

We’re proudly Ireland’s longest-established home improvements company. As a family-owned & run Irish business, we understand our customers and the importance of delivering on our promises.

For four decades, we’ve transformed thousands of customers homes (and lives) as the proven reliable, safe choice. We offer expertly fitted quality solutions that last and stay looking great with minimal maintenance ensuring your home retains its value.

Global manufacturing
Made in Dublin, with care

Backed by the Guaranteed Irish symbol of trust, we’re one of the last Irish home improvement companies to manufacture our own windows and doors. At our factory in Glasnevin, Dublin, we tailor-make your windows and doors to perfectly fit your home. We source the best quality materials, locally whenever possible. We consider every detail so that we can stand over our unmatched guarantees – in other words, our promise to you.

We don’t use sub-contractors

Our installers are highly trained craftspeople, employed directly by us so they go the extra mile for you. You will be treated with care and respect and your home will be left spotless. Our training programs ensure our team remain on top of their professional game. You enjoy direct access to us before, during and after installation so any little niggles you may have can be fixed immediately to your satisfaction.

Awarded Ireland’s Best Home Improvement Company

We continue to strive for awards because we care about quality and standards – and we know you do too. From Guaranteed Irish ‘Best Retailer’ 2024 to Q Mark Quality certification to Gold Trusted Service Awards and International Health & Safety standard, you are guaranteed the highest quality and care throughout your home transformation journey.

Happy Customers

What our customers say is likely of the most importance to you, as that is the true reflection of what you can expect from a company. We’re proud of our consistent 5-star rating with top class customer experience and after care service spotlighting the real Global difference. We’re there for you when you need us – that’s what our customers are saying.

Global real customer
Price Promise Guarantee

As in life, long-term relationships only work on a foundation of trust, so we won’t apply pressure and lock you into an arrangement you’re not comfortable with. With our price promise guarantee, you can rest assured we’ll refund any price difference you may find given the same quality and guarantees.

Expert Advice
We’ve teamed up with Patricia Power, renowned Quantity Surveyor and Global’s Construction Expert, to bring you top tips and advice to set you on the right path when considering your home transformation. No-nonsense, straight-talking Patricia Power has decades of experience in home renovations and new builds and has seen it all – and is happy to share it all too so you can avoid costly mistakes.
Patricia Power’s Top Tips
What our customers say
Feefo Gold Trusted Service Award 2023

Independent Service Rating based on 449 verified reviews.

06 Jun 2024

Broken door handle

Perfect service and staff suggested I raise request as emergency but in my mind it was not a genuine emergency and engineer called the next morning and solved the issue at no cost. What more could you ask for. Thank you
26 May 2024

Excellent service
Ms McDermott
21 May 2024

Excellent no hassle service follow up
17 May 2024

Very good
Mr Cosgrove
14 May 2024

I would highly recommend global to anyone

Excellent after care service prompt helpful and professional Couldn’t be more helpful to me and extremely pleasant to deal with Anyone I deal with or speak to are all so nice
Mrs Elastrash
09 May 2024

Professional support service

Professional response to a door lock problem. The technician was an excellent ambassador for Global
Mr O'Flynn
13 Feb 2024

Top Class

Absolutely Excellent. The guy was very helpful and was willing to do anything I asked him. Global have always done out Windows etc as they are simply the best.
Mrs Pierce
28 Jan 2024

They were here at said time I wasn’t hanging around all morning Very friendly
10 Dec 2023

Fixed “sticking” back door

Fixed back door that was “sticking”. Arrived at stated time and repaired door quickly.
14 Nov 2023

Good Service overall

Good service overall
Mr Lenehan
11 Nov 2023

Friendly helpful staff. Very good after sales service.
02 Nov 2023

My door wouldn't lock, Global said they would fix it on a specific day. They phoned to say they wouldn't be able to make it but would come the following morning. They did, the door was fixed and is working fine since. Thank you.
Ms O'Neill
29 Oct 2023

Aftercare service excellent

12 yr old product replaced willingly and within guarantee. No issues experienced. Call out and follow up from customer service dept excellent. Would recommend company to friends and family.
16 Oct 2023

Fixed gutter joints that were leaking after 13 years
10 Oct 2023

Great service

Really quick to come and do a repair, very efficient and pleasant to deal with
Mrs Harvey
10 Oct 2023

Your trades man was quick, courteous and gave us good advice. Thank You

The good Irish company with good people
Mr Keane
11 Sep 2023

Great to deal with.

Very prompt and efficient in every way.
Mrs Meleady
05 Sep 2023


Epaired seaker on back door under guarantee
Mrs Cooper
04 Sep 2023

Good friendly and efficient service

The work was carried out when scheduled and completed to our satisfaction.
Leonard Abrahamson
09 Aug 2023

Job well done,on time
23 Jul 2023

Very efficient and follow up service
22 Jul 2023

Great to get prompt, proper service!
17 Jul 2023

Highly recommended

Excellent repair service from Global. Promptly dealt with my issue and explained what was required and when it would be done - and it was, thank you.
10 Jul 2023

Very professional all issues were sorted out. Arrived when he said he would
Mr Brehony
10 Jul 2023

Top Company to deal with ,

French door wasn’t closing properly. Service man came when they said he would . Very pleasant man carried out minor adjustments to hinges got door closing as it should . Asked me to check it out and make sure I was happy with the repair .
01 Jul 2023

Great service

Kept appointment and solved the problem with no fuss.
01 Jul 2023

Problem with lock.

Early arrival which was great. Very pleasant gentleman, checked to make sure all was well with lock on front door and advised to call again if any further problem arose.
Mrs Wilkinson
14 Jun 2023

The people I spoke with on the phone were professional, kind and very helpful, top marks! And the engineer who fixed handles on windows did a great job. All in all i am very happy with Global windows, thank you.
Mrs O'Brien
09 Jun 2023

The back door had dropped.
Mr Maher
09 Jun 2023


Everything done on time, friendly staff no complaints
Mr Redmond
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

Excellent Customer Care service

Excellent after sales service. Came out quickly and fixed drop in porch door immediately. Couldn’t have asked for a better service.
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.
04 May 2023

Technician arrived on time, he straightaway knew what was causing the problem and fixed it very quickly.
02 May 2023

Speed of response, pleasant staff arrived the day after problem reported and had the issue identified and sorted within a very short time.
Mr Caffrey
03 Apr 2023

Front, back and patio doors installed in 2018. Called service in March 2023 to take care of a problem with the front door. Service arrived the next day exactly with in time frame provided and fixed issue. Not only that but serviced back door also. Service man excellent. Would recommend
Mr Williams
27 Mar 2023

Excellent service
Mrs Hempenstall
26 Mar 2023

When global say when they will arrive they arrive and get the job done
Mr Cummins
21 Mar 2023

Hello val Quinn here he was very friendly and very helpful he did a terrific job no problem now thanks very much val
Mrs Quinn
20 Mar 2023

As usual 10 out of 10
19 Mar 2023

Excellent service

Great service. 15 year guarantee. Fully recommend them. Replaced lock on back door after 15 years.
Mrs Reeves
01 Mar 2023


Excellent job. We are thrilled with our new doors and windows.
26 Feb 2023


From day 1 Global has been a pleasure to deal with. Before, during and after experience excellent.
14 Feb 2023

Replace window handles

Phoned in the morning serviced and fixed in the afternoon no quibbles done as promised
Mr McMahon
07 Feb 2023

Efficient and friendly after-sales service.

Our front door was sticking so we reported the issue. The man from Global came out on the day promised and fixed the problem efficiently and in a very friendly and relaxed manner.
29 Jan 2023

Needless call out (my fault in not turning key sufficiently). Handled with tact and efficiency.
Mr Doyle
17 Jan 2023

Very good response to my query about windows not defrosting on outside- in the cold spell before Christmas.The triple glaze was very effective - the condensation stayed on the outside.Samw happened today - another very cold night.Thanks for rapid response and good explanation
05 Dec 2022

New Door, great job

Replaced my front door in a very efficient manner. The team arrived on time and took away all the debris. They were meticulous in ensuring that the door furniture was in the positions that I wanted. They were courteous and very professional.
Ms Forte
28 Nov 2022

The service was high quality, professional,friendly and on time. The technician was extremely capable and the problem was quickly identified and corrected.
21 Nov 2022

Quick, fast and efficient
Mr Dillon
22 Oct 2022

Excellent service, highly recommend
18 Oct 2022

Efficient and polite

Definitely recommend
15 Oct 2022

Sorted in quick time.

Very happy with the results. Was able to ajust the front door the same day they came to access the situation.
Mr McCoy
08 Oct 2022

New gutters and soffits

I had new gutters and soffits fitted in the height of the heatwave in July. The fitters were Valentin and Darryl. Two of the nicest people ever. Very capable, efficient, tidy and pleasant. The work was done to a very high standard and I would recommend Global to anyone.
04 Oct 2022

Excellent service. Professional employee.
03 Oct 2022

Good service from Dan

Good service from Dan
Mr Doherty
01 Oct 2022

Checked out window handles, arranged to have them replaced, friendly worker

Yes surely! Came at arranged time, efficient and amiable young man who followed up on the task to be undertaken when the part was not available at Global. Adjusted window ‘settings’ and oiled window joints. Did the work under a guarantee for our door installation though the windows were well out of guarantee! Many thanks. Caoimhe
Mrs Frain
01 Oct 2022

Excellent customer service. Your 15 year guarantee is brilliant.

Customer service is excellent. Your service engineer arrived on time and fixed everything perfectly.
26 Sep 2022

Clarke very good service staff very pleasant thank you…

Very good service staff very pleasant thank you…
21 Sep 2022

Great service

Prompt response to my phone call and the employee who came and fixed the issue was professional and did the job efficiently leaving the place clean.
I. Butler
04 Sep 2022

Great workmanship and excellent costumer service.
Mr Egan
01 Sep 2022

Prompt & Friendly Service

Prompt and friendly response once contacted Global. Technician had everything on hand. Job done!
Mr Devlin
31 Aug 2022

Excellent aftersales service

Asked for safety locks on downstairs windows a year after installation. Had them fitted within two days. Super service
03 Aug 2022

Courteous and efficient

Responses were always prompt, efficient, and courteous. They came when they said they said they would and replaced the unit quickly and cleanly.
Mr Maguire
26 Jul 2022

A fault developed in a 6 yr old front door.Issue was resolved within24 hrs.

Top class. Excellent service.
Mr Cox
24 Jul 2022

Global Efficiency

Daniel repaired the catches on the window & replaced a lock efficiently & with no fuss
18 Jul 2022

Very pleased

We had a tiny issue over an incorrect phone number on our account so we weren’t sure about the delivery date. When it happened, the work was done expertly, quickly and the area was left spotless. The Global rep was very polite and friendly.
Mr Kerr
01 Jun 2022

First class service just as I had expected.

Very efficient , Very neat and clean fitting crew.
Mr O'Connor
31 May 2022

Another fantastic job - love my French doors

Last year global put in my front windows . I was so impressed with professional service that I did not have think twice to have them back to put in new French doors in my kitchen. Once again they did not disappoint- I would fully recommend global if looking for excellent quality, service and so clean & tidy .thank you global team
30 May 2022

New lock z

Had to get the lock replaced on our front door. They came out the next day and replaced it. Not sure if its because the lock is new,but it seem a little stiff. All in all a great service
Mr McCoy
30 May 2022

Always guanteed prompt and courteous service.

Lock on one of my windows broken.....same replaced by a lovely young man from Carlow, (am at the stage where I don't retain names so well!!!!)...He was so helpful and courteous, great Ambassador for Global.
Mrs Doherty
17 May 2022

Window eventually repaired

The window opening mechanism needed repair, it was repaired on the third visit. Two unsuccessful attempts resulted in a third visit by two different engineers.
Mr O'Halloran
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
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Yes, we install a wide range of home improvement solutions including roofline, fascia and soffit and flat roofs.
We only supply and fit as our installation system is an integral part of our overall product performance and can only be fitted by Global trained installers. Furthermore, as our guarantee covers installation, it would not make sense to buy the product only. We can not guarantee supply only as we would not be installing, and installation is crucially important.
Yes we do, but it must be linked to windows or doors that we are installing. In other words, if you want a window or door opening made bigger or smaller or you require a concrete lintel, step, concrete bases etc, we can do this as we have our own engineers and in-house expertise.