Costello Windows Anmeldelser 

I had to have a window replaced and whilst I had to wait a while for it as it was manufactured by another company, Amelie kept in constant touch with updates. Today the amazing John and his team arrived to remove the old one & fit the new one. The windows were extremely heavy and difficult to manoeuvre but it was completed without a hitch. As always exceptional workmanship from the nicest crew.

Since we had our windows installed in January 2022, we have had an ongoing problem with the metal fittings on the window frames: they have rusted badly. This affects in particular the small upper windows which are opened regularly.

Just to say that the follow-up service from Costellos has been excellent. They have recently replaced the rusty fittings and the fitter, John O'Sullivan, was very thorough, oiled and serviced all the windows and gave us good advice on how to maintain them in future.

Costello window and door repairs are so helpful, obliging and professional. from the moment you pick up the phone, Amelia is so thoughtful and caring. She will really help out with window repairs and give accurate details on when call out will be. The company is very prompt with dealing with any repairs. John was also so helpful on call out. I am so delighted with the windows that they repaired in my house. They have done a brilliant and professional job. The price was excellent. I would highly recommend Costellos. Thank you Amelia and John.
Claire mc Mahon

Ordered 7 windows from costellos found them very easy to deal with and very price competitive. Derry measured up and called after job was complete to check quality, couldn't be nicer. The lads installing willie and his helper were very nice and did a great job. It was a long day for them but they installed it all in 1 day. Would highly recommend!

Fantastic service from Costello Doors, serviceman called on schedule and his attention to fixing the issue was excellent . Delighted with my experience . Would definitely recommend them

Design was perfect and Brendan did an excellent job installing the door. Would highly recommend Costello Windows

Lovely job, great quality door and workmanship

Very happy with the refit done by Costello Windows. Replaced all existing old windows and doors. Both the product and workmanship was to a very high standard. Did a good tidy up after incl all the bits of replastering etc required. Thanks to John who oversaw the whole process, Justin for showing us around the showroom (on a Saturday) and finally Jerry and Jack the fitters who did a great job who explained everything as they went along. All very personable people to deal with. Would highly recommend.

Conor O’Regan

We had windows installed with costello windows recently,we were very happy with the service provided and especially how helpful fitters were and with how tidy everywhere was after .

Delighted with the high quality service provided by Costellos Windows and Doors.

From showroom to selecting the best design, to the fitters who competed
the whole house, windows and doors, they were very efficient and neat.

The whole process was seamless, and we are delighted with the results.
We would highly recommend Costellos.
Mike and Breda Woods.

We are very pleased with the way James fitted the doors. James work was professional and tidy.
Also thanks to Breeda for all her help and all the staff at Costellos.

Great product and service.
All left spotless

From start to finish Costello were excellent. John was great and showed us around the showroom, helped to select the best design and always at the end of the phone for any questions. The fitters were brilliant, even our builder was impressed and said he will use them again. And best of all - we love the windows! Thank you so much to all of you!

Door was fitted and no complaints thus far. The two installers were on time and dilligent in their work. Also took away our old door which was much appreciated

Very happy with the front door installed by Costello windows. The door itself is beautiful and exactly what I wanted. Easy process from initial consultation to fitting. The fitters were extremely neat and tidy and left the hallway as they found it. Would definitely recommend Costello windows!

Service guy john came to our home and was a pleasure to deal with, thank you Costello Windows

Costello windows were a delight to deal with, we asked for a child restrictor to be fitted and they sent around a service guy and had it done in a giffy, windows looking great too.

Had a new front door fitted by James, he is very professional and a hard working young man, we are very happy with our door and it was manufactured and installed on time as quoted when we visited their show room, from start to finish we are very happy with Costello windows.

As Costello Windows have shown no interest in resolving the leaking windows I had to take matters into my hand.

I hired a registered builder to repair the leaks and damage done to the house caused by the leaks. A cracked sill was replaced on one of the windows which could have been a possible source for water ingress. The repair was tested for leaks. The window was still leaking not as a result of the repair but as a result of a manufacturing fault in the window itself. The remaining windows were tested in a similar fashion and displayed the same manufacturing fault. The window frame itself is taking in water and lodging in the frame. It eventually reaches a level where it begins to seep out into the walls. So not only were the windows installed incorrectly there is now a manufacturing issue. From my own perspective this is a positive as according to my solicitor, this is a breach of contract.

On another positive note, the RTE TV series "The Complaints Bureau" have replied to email which I will be following up on shortly.

Great experience with Costello windows. We got a Palladio front door from them. They were prompt with everything and actual wait time for the door to be fitted was less than they had initially said. James, the fitter was excellent - not one bit rushed, clean and thorough in everything that he did. A special thanks to James.