GreenCastle Home Improvements Reviews 

Derek attended for a quote looking forward to new doors. Derek was very professional

We were extrnely happy, explained it clear and precise. Derek even sgiwed different t options and the composite doors look aamzomg.

Price very good and product is excellent. Cant wait for new windows and doors.

Derek is a top class gentleman, listened to absolutely everything we said to him & went above and beyond to get us what we wanted! Couldn’t fault him in the slightest from start to finish he has been outstanding.

Derek Reilly explained everything clearly and no flaffing about..... superb

We are very bały on Dereks assistance sińce june last year, He came Back almost same price as last year. Kwot to their Word, Corsę and understanding and look great quality. Will certqinly be passo g on his details to family and Friends

Thank you again

Derek came to visit our home and he was very friendly and put our minds at ease with our home with getting new window and door and made us feel at ease and explained everything.

Very quick response. Derek was very knowledgeable, clear and helpful. Looking forward to getting my new door.

Great service. Derek explained everything fully and made me feel really comfortable with the whole process. Looking forward to windows and doors being installed

I am so impressed with the way this company handles their work, so polite and very professional, easy to get on with and very helpful I highly recommend this company and will be having more work done soon.

As someone who has had negative experiences in the past, Derek put my mind at ease at once. He was incredibly friendly and polite throughout. He explained everything in detail and every stage and was happy to go over details. He has restored my faith in sales people!

The team, Cliff and Jordan, were very efficient, very clean, and very polite. They were quick, but did not cut corners. I would highly recommend them, and of course the business. I am very happy with the windows also.
Thank you, Cliff and Jordan. X

Dylan & Sean' excellent at fitting and installation and also cleaned as they went, very polite and didn't stop at all over 3 days, windows look stunning and kitchen door is just amazing. Not as noisy and very cosy, thank you to Derek from the start, surveyor and office, would highly recommend, And good luck for 2026,

Fitted the wrong window as we ordered opening out windows and after a visit from the owner of greencastle who came to get his completion signed agreed to fit perfect fit blinds to keep.the wrong window and now doesn't return calls the office also refuses to return calls.
There aftercare is shocking stay well clear.

Our double glazed windows and doors were very tired after twenty years, so we decided to get some quotes for replacements. After doing some research and checking some reviews we decided to speak to Greencastle. Aaron came and explained the details of the products without any "pushy" sales pitch and he answered our questions comprehensively. He gave us a competitive quote for triple glazing, and we decided to go ahead with them. Aaron had samples of their products along with catalogues. We were very impressed by the robust and well finished products. From the
outset Greencastle were great on communication, and this continued every step of the way until installation, and this became important as we had dreadful snow and ice where we live in the far North of Scotland.
The fitters arrived and introduced themselves as Muir and Rhys who carefully explained how they were going to proceed. These guys were absolutely amazing and set to work immediately. They were great ambassadors for Greencastle as they were professional, polite and incredibly helpful. I cannot speak highly enough for these young men, and any worries we might have had dissolved completely.
All in all, the whole experience of having major work done to your house was a really good one. The quality is first class, the fitting was great and the communication with the office was seamless ( thanks Ava). I would recommend Greencastle to anyone considering buying or replacing home improvement products.
Derek and Linda, Halkirk, Highland.

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 transformed.

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 would be best suited to our requirements - Even showing us a visual of different doors on our property which was extremely helpful when choosing.
I would highly recommend Derek and Green Castle to anyone-The entire process from start to finish has been pleasant, stress free and we are delighted with our new door
Thanks again guys

I wasn't sure about committing to the amount of money quoted for the windows but was persuaded by Lindsay to have 4 windows fitted. He had been in my house nearly 2 hours and by this time I felt a bit under pressure. I paid the deposit and the payment went through before the salesman left my house. Having discussed this with family I decided to cancel, as I was still unsure, which I did within 2 days, the cooling of period is 14 days. I phoned on 4/12/25 to enquire about receiving my deposit back and was told it could take up to 3 weeks, which is a breach of the consumer rights legislation. I received the payment back into my account on 7/12/25 minus £249 which when I phoned, was told it was an"administration fee" which is also a breach of the consumer rights legislation. On both occasions when I had to contact the company I found the staff unprofessional and dismissive as well as uninterested. I gave a 1 star review only because there was no 0 star option. Avoid this company!

Great team to work with and such an easy process. Highly recommend!!

Derek attended our property to provide a quote to replace all windows and doors. I was very impressed by his relaxed and friendly professionalism. He explained to us the benefits of the windows we were buying, styles and the choices available. I was really impressed at his knowledge and support and would highly recommend this company. Thank you and I’m looking forward to having my new windows and doors installed.

We were really pleased with the service we had from Greencastle.
The whole team were good to work with from Arran in sales, Muir & Reece the installers and Ava in the customer liason team
Good quality product, excellent standard of fitting and a pleasure to work with them.
They went out there way to ensure that we were happy from start to finish with the process.
Would highly recommend them for price, quality and customer service and support