GreenCastle Home Improvements Reviews 

599
•
TrustScore 4.5 out of 5

4.6

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Review summary

Created with AI, based on recent reviews

Considering 72 reviews, reviewers overwhelmingly had a great experience with this company. Consumers frequently mention the exceptional quality of both the products and the professional fitting service, noting that the entire home improvement process runs smoothly from start to finish. People are particularly impressed by the helpful recommendations and the genuinely welcoming attitude of the staff during initial home consultations and quotes. Some reviewers were not happy with occasional product defects, such as cracked glass or minor sealing problems discovered shortly after installation. A few other people also felt that aftercare support and resolving post-installation issues could be significantly improved when complications arose.

What people talk about most

Staff

Consumers find staff to be exceptionally helpful, professional, and friendly, with representatives frequently... See more

Product

Reviewers mention positive feedback about product, expressing delight with new sturdy windows and doors that... See more

Price

Users describe positive interactions with price, noting that the quotes provided were very good, competitive,... See more

User experience

Customers had positive experiences with user experience, noting that the process was easy and that... See more

Reviews shaping this summary

Rated 5 out of 5 stars

We had Derek come out to give us a quote. Very friendly and absolutely no pressure. He listened to what we wanted and gave great advice where needed. Would definitely recommend his services. Hopef... See more

Rated 5 out of 5 stars

Derek visited us at our home to give us a quote for a new front door. We found him to be very warm and friendly. We were undecided on style so Derek spent a lot of time with us advising what woul... See more

Rated 5 out of 5 stars

Derek came and gave us a quotation for a new front door earlier today. We were getting several quotes from different companies to compare. The result being a couple of hours after Derek leaving, we... See more

Rated 5 out of 5 stars

Mum and dad are in poor health, so we oversaw process with them. Derek went through full explanation and ideas, discussed many options with everyone involved. Looking forward to seeing full house tran... See more


Company details

  1. Window installation service
  2. also in
  3. Double Glazing Installer

Written by the company

GreenCastle are committed to supplying high quality, virgin grade,bespoke upvc windows, doors and conservatories. Guaranteed for 15 years, our products deliver the very best in security, energy efficiency and Value for money!


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

599 reviews

5-star
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1-star

No recent history of asking for reviews

This company hasn't invited customers recently, so reviews may not be representative

Replied to 33% of negative reviews

Typically takes over 1 month to reply

How this company uses Trustpilot

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4.6

All reviews

(599)

72 reviews in the last 12 months

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Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Excellent customer service

Derek came round to give a quote for windows and a door. He was very professional, friendly and efficient. We were given all options and discussed what worked best for us. We went ahead and purchased the windows and door because it was a deal we could not refuse. 1st class service, thank you.

12 September 2025
Unprompted review
Rated 5 out of 5 stars

Muir and Rhys

Had Muir and Rhys fitting windows in my grandmothers big old house, they were very accommodating to my grandmothers Ill health, made everyone feel at ease, kept us updated as the job was going on and a total pleasure to have in the house. They left no mess, done an excellent job and got 18 huge windows in very fast. We are hoping to replace front and back doors in near future and would absolutely use again. Thank you 🌟

1 September 2025
Unprompted review
GreenCastle Home Improvements logo

Reply from GreenCastle Home Improvements

Thank you for your review, we have passed your comments along to Muir and Rhys. :-)

Rated 5 out of 5 stars

Derek was very friendly not pushy …

Derek was very friendly not pushy made sure myself and my husband were included in everything he was saying and doing. Really didn't feel any hard sell from him at all. Explained everything very clearly how things worked regarding how project can be financed . Very pleased with quote . Feel he became a friend rather than a sales person .

8 September 2025
Unprompted review
Rated 5 out of 5 stars

Derek’s a legend

I got in touch with this company two years ago to get a quote for new windows and doors. I met Derek who was a very outgoing and professional guy and he got me the best price possible but unfortunately I wasn’t able to go ahead due to my financial situation.
I promised Derek I would be in touch when the time was right which he accepted. He didn’t hound me like other companies usually do.
I got in touch with Derek a few days ago and explained I was now able to go ahead with the windows and doors and would he be able to come out and give me another quote. Derek remembered who I was and got me fitted in for a visit to measure up and go through prices. Again Derek was extremely professional he explained everything really well and went through all financial options that he thought would be best for me. He said at no point did I have to go ahead with anything if I decided it wasn’t the right price or time for me. We had a great catch up with everything that has happened the past two years it was like seeing an old friend. Derek again got me a great price and I signed on the dotted line and can’t wait to get my windows and doors installed.

5 September 2025
Unprompted review
GreenCastle Home Improvements logo

Reply from GreenCastle Home Improvements

Thanks for sharing your experience so far! We look forward to completing your work.

Rated 5 out of 5 stars

Very professional

Very professional. All aspects were explained thoroughly and we felt under no pressure whatsoever.

5 September 2025
Unprompted review
Rated 5 out of 5 stars

Excellent choice…

I had a fair idea of what I was looking for and Derek gave me a look at what was available. I am extremely happy with my choice. Derek was very informative but didn't push my decisions. I am looking forward to my door being installed so very much

1 September 2025
Unprompted review
Rated 5 out of 5 stars

Good from start to finish

Excellent service, quality doors and windows installed by Cliff and Harry who carried out the work with courtesy and efficiency.
Would recommend company.

18 June 2025
Unprompted review
GreenCastle Home Improvements logo

Reply from GreenCastle Home Improvements

Thanks for your review and for choosing Greencastle for your project.

Rated 5 out of 5 stars

Friendly genuine guy Derek

Friendly genuine guy Derek, wasn’t pushy or in for the hard sell. Felt like we’d known him for years, very professional, explained everything in layman’s terms, made it easy to understand and very helpful. Myself and my husband both felt he was considering our best interests and what mattered to us.

29 August 2025
Unprompted review
Rated 5 out of 5 stars

Great first impression

We’ve had the pleasure of meeting Chris the other day when he came to assess our windows in our newly purchased home in Muir of ord. Chris made us aware of what improvements we could make however, did not pressure us to purchase anything we weren’t comfortable with. Chris could see that some of the windows were newer than others so he only recommended to change the older ones. He presented us with a lot of knowledge which indicated to us how experienced he really is. We ended the appointment with a quote that suited my partner and I. So far we’ve had a great experience and we look forward to seeing our new windows in the upcoming weeks.

27 August 2025
Unprompted review
Rated 5 out of 5 stars

We just had Derek visit us to discuss…

We just had Derek visit us to discuss replacing our front and back doors. Right from the onset we felt at ease. We didn’t feel like he was in for the hard sell. He measured up and discussed our options including suggesting things we had not thought of. He showed us the different styles and I was handed a brochure to look through. I did not feel excluded the way some salesmen can make you feel. We discussed the style and agreed on what we wanted ( I originally wanted a rosewood door), the price was very reasonable and after reviewing our requirements we signed the contract. Derek was very friendly and approachable with no hard sell and has a brilliant personality. If we need anything in future we will be in touch.

29 August 2025
Unprompted review
Rated 5 out of 5 stars

Forbes Family

Had Derek Reilly round to give us a quote for a new front door.
Derek was genuine friendly and honest with the costs. Explained the whole process thoroughly
Great choice and range of doors
Made our experience easy
Definitely recommend your company
5 star service

26 August 2025
Unprompted review
Rated 5 out of 5 stars

Excellent service and competitively priced

I can recommend Greencastle. The windows were competitively priced and it was a painless experience from the moment Derek arrived to quote for the windows.
The fitters , Colin, Kenny and Adam arrived at 8am, introduced themselves and began work. They worked solidly and were finished by 1pm. Three windows and a front door all fitted quickly and efficiently

28 July 2025
Unprompted review
Rated 5 out of 5 stars

Praise to the completion of lovely new doors and windows rom the knock on our door from a…

From the knock on our door from a Greencastle rep asking if we were interested in getting new double glazed windows to placing an order with Derek who took time to show us all the company had to offer, we were impressed with the range of options and happily agreed on the windows and doors we liked. Then Tommy arrived soon after and meticulously measured all our doors and window spaces.
Each and every person who got us to that stage could not have been any nicer and the whole journey was reassuring and straightforward.
Then the installers arrived to first of all remove all the old windows and doors.
John and Stevie were amazing. They worked so hard. They were cheerful, respectful and tidied as they went from room to room installing our new windows and doors. They are a credit to the company. We are getting so many comments on how lovely the finished result looks. We truly recommend Greencastle as a great company giving excellent service throughout and at a really great price.

24 July 2025
Unprompted review
Rated 4 out of 5 stars

Superb installation of doors and…

Superb installation of doors and windows by Colin, Adam and Kenny- high quality doors and windows with the designs recommended by Derek working really well. Only reason not 5 star was customer service - communication of installation date vague - whilst we appreciated length of time to manufacture felt as a customer I had to chase to pin down a date. Despite this would highly recommend.

7 July 2025
Unprompted review
Rated 5 out of 5 stars

Quick, Respectful of property

Emailed over the weekend for an estimate, got a prompt phonecall early in the morning and was lucky enough to get a slot available for an evaluation same day thanks to someone needing to reschedule.

Having researched over the weekend, I knew what was needed and ended up purchasing as the price was well within reason. Normally I would have three estimates.

Derek was well informed of the products and answered all my questions knowledgeably. The financing options as well as terms and conditions were clear and concise.

Presently surprised and please with Linda from the office, Andrew from Scheduling and Derek the Sales Executive. All were magnificent.

28 July 2025
Unprompted review
Rated 5 out of 5 stars

Derek was extremely genuine

Derek was extremely genuine, friendly & chatty. It was refreshing to have somebody come into your home who is happy to chat & give an honest opinion than a pushy salesperson only interested in the commission they will make from the sale. There was no rushing through anything either. Any questions, he was happy to answer.

28 July 2025
Unprompted review

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