Concept Windows & Conservatories - www.conceptwindows.co.uk

WARNING!

Avoid Concept at all costs. This company has the worst after-sales support I've ever experienced, and their so-called “10-year warranty” is absolutely worthless — it doesn't cover a damn thing.

We chose Concept based on their reputation and local presence over several cheaper competitors. That was a huge mistake. We should’ve known better after their sales rep didn’t even show up to the first appointments — a clear red flag of how unprofessional and disorganised they are. The excuses that followed were laughable, and we were foolish to continue.

Our conservatory was installed just over 2.5 years ago (March 7, 2022). The installation team were decent, no complaints there. But everything after that has been an absolute nightmare.

Recently, a door restrictor bent and failed — a basic £15 part — and when I contacted Concept, I was blamed for the damage. Yes, blamed. According to the so-called boss, “it’s supposed to do that” (what?!), and then he had the nerve to claim 45mph winds caused it. Not only was he wrong, but he even sent a screenshot of the wrong day’s weather as proof. The actual weather on Tuesday, 1st October 2025, when it happened, was 7mph winds — check it yourself. But of course, they don’t check records properly, nor do they seem to care.

I’ve been in the building industry for 30 years — I know the difference between quality and cheap tat, and Concept are definitely flogging the latter. Their products are clearly not premium, regardless of the price tag or the slick sales pitch.

To top it off, I’m now having to go to Citizens Advice over a £15 part, after handing over nearly £15,000 in cash to this company. And when I refused to pay over £100 for a call-out to fix their flimsy part, I ended up removing it myself — literally 2 screws. Not even a courtesy call after three days of waiting. Just more bullsh*t excuses and the kind of customer service that makes you feel like an inconvenience instead of a valued client.

The way I’ve been treated — like some sort of scumbag — is disgraceful. The rude phone staff, the condescending late-night emails, and the arrogant tone have completely ruined any trust in this company. His cocky emails are a masterclass in how not to deal with customers. Zero empathy. Zero professionalism. Zero accountability.

It’s a real shame, because the installers actually did a solid job — but they’re being completely let down by the cowboys running the front of house and aftersales. And now, as we were about to get all our windows replaced, there’s no way I’d let Concept anywhere near another project.

So if you’re reading this, take my advice seriously: Concept are not the premium, trustworthy business they claim to be. Their warranty is a joke, their service is a disgrace, and once they’ve got your money, you’re on your own.

Don’t say I didn’t warn you.

Very pleased with the service we received used Concept for our office windows as I had them do work for me and was pleased. The staff where very friendly, professional and tidy. Highly recommend

This was our second time using Concept. They replaced the double glazing in our house. They also removed tiles at the front and back of our house, filled with insulation and covered in brand-new cladding. We are pleased with the finished results. It looks great. The fitters were professional and cleaned up after themselves. Happy with the aftercare, too. We had an issue with one of the window handles after the installation and someone was sent over on the same day to fix it.

Really impressed with the service. I would highly recommend this company

From start to finish the team were great, even if a problem was sorted without hassle, the fitting team were brilliant and respectful of the home.

great experience on such a big project.

would highly recommend.

Thank you to Concept. I was very happy with the service I received and the work carried out. I would highly recommend Concept to my family and friends.

From start to finish excellent. Good quality windows and doors. No pushy sales calls and fitter was very friendly and thorough. Can’t fault anything. We used the company 5 years ago for windows and this year we had to renew our back door after 24 years. No job too small. Recommended to the mum of our close friends who was also very pleased.

We had a large Conservatory / Extension built. The outcome is a really great space built with Quality contractors and materials. I was very pleased with first step sales options, and professional service, with quote, even if higher than some, I was confident with what was being offered. Planning and approvals were taken in hand, and permission given accordingly. The build teams of groundwork’s, frame construction, electrical and plastering was done in accordance of expectation of myself and flexibility when required to make minor changes or adjustments. Communication through out the process was excellent, ensuring all questions and steps were considered and understood. In all, we are satisfied customers who would recommend Concept. There are always improvements that can be made, but it would be picky in this review to highlight such details.

Regards Mr Walsh

We now have not only a secure, leak free conservatory but one transformed into a room we can use year round. We are very happy with the advice we received, the project plan and the adjustments made when challenges of our space became clear. Each member of the team was friendly, skilful and professional. The ethos of a well run family business shone through.

Concept created a brand-new orangery for us, and we are absolutely delighted with the final results. They took care of everything from A-Z, from the design and planning application to the construction and finishing. Everyone we dealt with was so friendly and helpful, and communication was smooth and easy. Concept were so accommodating of all our wishes and any minor issues were resolved promptly. We would be happy to recommend Concept and use them for other projects in future.