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
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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
Dundee, United Kingdom
- Enquiries@greencastlehomeimprovements.co.uk
- greencastlehomeimprovements.co.uk
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
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Derek has been a great help with us…
Derek has been a great help with us choosing the windows & doors for our house,his professional expertise is second to none.
A great company and quality products
From the first visit from Marc and then Aron, the surveyors visit, through to the fitters Cliff and Jordan our experience of Greencastle home improvements has been 100% positive. The fitters Cliff and Jordan were really experienced and made sure they cleared up afterwords checking that we were happy with the outcome at every stage. This all complements the high quality product which, now fitted looks brilliant. All of our requirements have been met including having white interior with rosewood outside on the nine windows and the patio door.
Thanks to all concerned.
100% recommend
Derek came in to see us for a full fit of windows and doors, cant recommend enough. He went through everything from start to finish. Would 100% recommend.
Excellent experience
Derek came to see us as a general enquiry, he spent time explaining the quality of the windows and doors. We were totally impressed and the price was excellent.
The surveyor came next day and were now looking forward to our installation.
Returning customers
This is my third time returning to greencastle, they are very easy to get ahold of and communication is great:)
All staff I have dealt with have been polite and I have been pleased with their work. I have had two front doors installed, a kitchen window, and now my conservatory redone. All reasonably priced and installed on time and to my satisfaction.

Reply from GreenCastle Home Improvements
New windows and doors
We ordered new windows and doors from Greencastle kept us informed when they would be delivered etc. Fitted expertly by Kane and Billy no mess left and would definitely recommend them. Also Tommy who measured the windows was very helpful
Derek came round at a time that suited…
Derek came round at a time that suited my wife and I, he explained in full detail how the company worked and he displayed a good knowledge, he gave a good insight into what would work for the house whilst ensuring to keep the cost reasonable.
He was good at breaking things down and not pushing me or my wife into anything, he gave us time to think about the purchase and did not harass us with calls. When we called for a follow up he was polite and came out again at a time that suited us.
Derek is knowledgeable of the products he is selling and did not make us feel pressured into anything.
Derek was very helpful explaining…
Derek was very helpful explaining everything in detail taking care not to miss anything out , and also mad as a brush .Fantasic person greencastle be proud of him .
Fantastic service from Derek
Fantastic service from Derek. All the details and specifications were thoroughly explained. I would definitely recommend Green Castle.
Excellent Service
Excellent Service, fully explained and 10/10 for service and knowledge, Would highly recommend, Derek arrived on time and fully explained as he went through the details.
Excellent service - just ordered more windows
Excellent service. The team that fitted the windows were superb. I have just ordered more windows from them. Thank you GreenCastle !!
Excellent service
Excellent service, Derek was friendly and helpful
Fantastic professional service from…
Fantastic professional service from start to finish, front door supplied and fitted and absolutely love it well done Colin and adam great job today. also very patient with my dog Theo thankyou again all
Derek was brilliant, got a happy husband
The view and the advice came imidiatly as requested. We were explained everything and they answered to all our technical questions. 100% recommand their services
Great guy
I had Chris Gosling in to give quotes for windows in Aberdeen. He was a very nice, well mannered and knowledgeable guy. He never overstayed his visit.
He was clear and concise about the product and the cost and I was extremely comfortable with him. Great sales person.
Derek knows his stuff!
From the outset, Derek was friendly but remained professional. He put us at our ease immediately, no frills and no faff - just honest, plain talking. He took us through the process step by step, making sure we understood exactly what was to happen at each stage, discussed various options for windows and doors and how we could finance this. Derek obviously knows his stuff inside out, has invested years in the job and you can see he has a genuine love of it. Coincidentally, a few days before Derek's visit, I had spoken to a friend of mine who had her windows replaced by this firm and she couldn't recommend them highly enough - and she is notoriously hard to please, so we know we are in good hands!
Derek is a fabulous salesman who…
Derek is a fabulous salesman who explains everything simply and thoroughly. I’m looking forward to getting my new windows and noticing a difference in my heating.
They treated my elderly mum with great…
They treated my elderly mum with great respect and she felt listened to. Very considerate and helpful. Wonderful service and customer care from start to finish.
Great service
Great service, well informed sales advisor Derek. Explained all of my options. No pressure to buy but great price given not to go ahead.
Excellent Service and Quality
Cliff and Howard did a great job installing a new composite door for us despite the awkward door opening that comes with a 100 year old house!
Everything was very neatly done and various stages explained when asked (Mainly due to my own interest in DIY) and all cleaned up upon departure.
The door looks to be very good quality, shuts accurately, smooth locking mechanism and doesn't sag when open.
Office staff were also very polite and helpful during the process, overall looks like money very well spent and I will look to them when I need something else replaced.
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