KNOCK Doors and Windows GmbH Cologne Frechen
Cologne-based door and window supplier noted for informed advice, competitive pricing, and reliable installation.
What customers love
- Knowledgeable consultants who explain technical options in detail
- Strong value for money across doors and windows
- Smooth installation carried out by competent fitters
Worth noting
- A recommended third-party window installer carried out a poor installation
Best for
Homeowners renovating and seeking quality front doors with professional consultation
Attribute scores
Recent reviews
I bought a new front door from Knock Doors and Windows in Waiblingen. I'm very satisfied with the consultation, the quality of the door, and also with the installation, which was carried out by competent installers. All in all, top marks!
I'm absolutely thrilled with Knock Doors! I received excellent and expert advice. I'd especially like to commend the friendly and highly knowledgeable consultant who took the time to answer all my questions and explain the various options in detail. You can immediately tell that expertise, experience, and genuine customer focus come together here. The recommendations were spot on. Honest, transparent, and with an eye for detail. The price was also fantastic 👍 I can wholeheartedly recommend Knock – they truly prioritize service!
One of the best purchases during our renovation was the front door. Mr. Turhan is very customer-oriented. The consultation was straightforward and tailored to our needs. He was always friendly and helpful. He even helped us with our windows after the installation fell through at the last minute. The door seems to be of high quality. Excellent value for money! We'll have to wait and see about its durability. So far, we're happy with our door purchase from Knock and would gladly recommend them. Update: This isn't directly related to Knock doors, so it's not a criticism of the company. We still think Knock is a great company. However, this concerns a window installer they recommended. I have to admit that the window installer helped us through a difficult situation, but we're now realizing that the installation wasn't done properly. Inquiries are answered unprofessionally. I hope this update helps other customers.
We are absolutely thrilled. Everything went smoothly. The service was superb, from the initial consultation to the installation. We are speechless. We highly recommend it! Thank you, Knock Company, and a big thank you to the installer!
We are absolutely thrilled! The sales staff were incredibly kind and friendly, and they really know their stuff when it comes to doors and the technical details! All four doors are truly excellent quality at a great price! Service and quality are a perfect match! If you're buying doors, choose Knock! Thank you again for the fantastic service!