Costello Windows Reviews 

Very happy with the sliding door we got, the two fitters were lovely and excellent work. Only gripe I had was with the wait time, I had advised we had visitors coming to stay in 7 weeks time and the office asked me the date and they’d make sure to have it done in time, which I was delighted about. Unfortunately after a couple of phones calls by ourselves, they eventually came back to say they wouldn’t have it done in that timeframe and it was a couple of weeks later.

The team at Costello windows were great from start to finish. They were very easy to contact. Their fitters were very efficient on the day and very professional. I absolutely love our new door. I will definitely be recommending them in future.

Top blokes, who fitted the 4m door, works like a dream👍👍👍

Would highly recommend the lads in Costellos.
The sales and measurement men were quick to get a response from and very easy to deal with.
Payment and fitting were seamless.
Overall a very good service, no waffling about and there was no issue in working around our own schedule.
Delighted with the product as well, went with black colour, they are so stylish and of great quality.

So happy with the workmanship delivered by James at Costello Windows. Very talented fitter!

Three gentlemen completed the fitting of two single and one double door. All external. From the moment they arrived to the time of leaving their service was friendly, professional and courteous. The work was completed to a high standard with great attention to detail. A hard working trio.

We spent a lot of time choosing a colour for our back door with the sales person who was very nice to deal with but when a decision was made we got a call to say the colour was not available and we were limited to certain colours.
Apart from that we were very happy with the fitting and the overall experience was good. I would recommend costello windows to others

We recently had new exterior doors and windows installed by Costello Windows and Doors, and we’re very pleased with the entire experience. From the start, their team was professional, knowledgeable, and patient in answering all our questions.

The consultation process was smooth, and we appreciated the detailed options they provided to help us choose the right products for our home. The installation crew arrived on time each day, worked efficiently, and kept the workspace clean. The quality of the workmanship is excellent—our new doors and windows not only look fantastic but have also noticeably improved our home’s insulation and overall comfort and look.

We’d definitely recommend Costello Windows and Doors to anyone considering upgrading their home’s windows or doors. Great service and a job well done!

Fastest ETA on windows in Ireland. Superb service - great communication. Lads all the windows in the house and dorrs fitted in 2 days. Great Finsh

Costello supplied and fitted a new Palladio door. The door itself is beautiful, love it, worth every penny. The fitting service was excellent. James was efficient, competent and clean and tidy.

James was very professional and we are satisfied with service.
Thank you

. Hayden promptly replied to our endless questions . Over the course of a few months he gave us quotes and advice for a number of options. Windows were installed 8 weeks after we ordered .
Very clean installation.
Many thanks

I am absolutely delighted with both the end product and the level of service provided by Costello Windows. I ordered a Palladio front door with glass side panels eitherside and it took only 8weeks from placing the order to having it installed. I’d definitely recommend using Costello’s again. A big call out to James who made the long track from Limerick to fit the door who was a pleasure to deal with and did a fantastic job.

Costello's recently fitted a new front door for us. They were so easy and professional to deal with from my initial phone call right through to the fitting. It all went very smoothly. The fitter did a great job and left the hallway spotlessly clean afterwards. We are delighted with our new door. Would definitely recommend Costello Winows.

Costello Windows recently fitted double doors in my kitchen/patio area. I chose Costello's as they fitted windows and doors in brothers house last year.

I am delighted to say that I am very happy with the end result and the service.

From my first phone call to Breeda who helped me with my choice and gave me expert advice, to the site visit by Derry every part of the process went smoothly and efficiently. Ger the fitter is very experienced, he arrived on time and worked diligently to ensure the doors were fitted to a perfect finish.
I must also compliment Brendan who was so cooperative working around the fitting time of our renovations.

Costello's provided a very smooth & hassle free service with excellent communication and a perfect end product of very high quality.
Thank you Breeda and all the team, we will be back for our next project.

I got windows and a door replaced. From start to finish the staff and service was vet good and efficient. The chap that did the replacement was very fast, efficient, didn't even notice him there. Everything was kept very clean and tidy and job done very well and a lovely finish. Would certainly recommend Costello Windows.

Very professional service
The two fitters where excellent and accommodating
Excellent fitters and workman ship

Breda was an absolute star, who works in the office - so efficient and kind!

Absolutely delighted with the door and service received.

Back door fitted, happy with door having had a front door fitted before. Unlike the experience with the fitting of the front door, James (kerryman) fitted our back door, he did an excellent job, thanks James