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Business Details
36 Years
experience
Trusted PVC-U Windows and Doors Manufacturer in Letchworth
Established in 1990, Crystal Direct has become a leading UK manufacturer of high-performance PVC-U windows, doors, and conservatories. Our state-of-the-art facility in Letchworth, Hertfordshire, produces products to the highest quality standards, serving new build, refurbishment, and commercial projects. With over 30 years of industry expertise, we prioritise customer choice, offering a comprehensive range of energy-efficient solutions tailored to diverse architectural needs. Our commitment to excellence is reflected in our UKCA Marking and CE Marking accreditations, ensuring compliance with rigorous industry standards. We collaborate with over 259 approved suppliers nationwide, providing accessible, reliable service supported by exceptional customer care.

Our innovative approach combines traditional craftsmanship with modern technology, such as the Kubu Smart Lock system, to meet evolving market demands. Through strategic partnerships and a focus on sustainability, we deliver genuine value to stakeholders while maintaining competitive pricing. Our teams dedication to continuous improvement ensures products meet exacting specifications for security, thermal efficiency, and aesthetic appeal. By fostering strong relationships with trade customers and end-users, we drive profitability and long-term trust in the home improvement sector. This enduring ethos of quality, innovation, and service excellence positions Crystal Direct as a preferred partner for discerning clients nationwide.
Services
PVC-U Windows Composite Doors Conservatories Aluminium Bi-fold Doors PVC-U Residential Doors Vertical Sliding Sash Windows Solid Roofs Tilt and Turn Windows
Details
  • Year established: 1990
Highlights and features
  • We offer over 30 years of specialist experience in PVC-U manufacturing
  • Our products are produced in a state-of-the-art UK facility
  • We provide a comprehensive range of energy-efficient, UKCA-accredited solutions
  • Our nationwide network includes 259 approved supplier locations
  • We combine traditional craftsmanship with innovative technologies like Kubu Smart Lock
Associations and certifications
  • UKCA Marking
  • CE Marking
Services
PVC-U Windows
Our PVC-U windows combine thermal efficiency with security features, available in flush casement, vertical sliding sash, and tilt-and-turn styles. Manufactured to UKCA standards, they reduce energy bills while maintaining aesthetic appeal for residential and commercial properties. Customisable with various foil colours and configurations.
Composite Doors
Engineered for superior security and insulation, our composite doors feature reinforced frames and multi-point locking systems. Available in modern and traditional designs with optional smart technology integration through Kubu Smart Lock, ensuring both functionality and enhanced kerb appeal for homeowners.
Conservatories
We supply conservatory frameworks with solid roofs or lantern-style glazing systems. Designed for year-round use, these structures maximise natural light while maintaining comfortable temperatures, ideal for residential extensions or commercial hospitality spaces requiring architectural versatility.
Aluminium Bi-fold Doors
Contemporary aluminium bi-fold doors create seamless transitions between indoor and outdoor spaces. With slim sightlines and high-performance weather seals, they offer durability and modern aesthetics suitable for new build developments and property renovations seeking premium access solutions.
Kubu Smart Lock
This innovative locking technology allows remote monitoring via smartphone apps while maintaining traditional key operation. Designed for composite and PVC-U doors, it provides trade partners with a competitive differentiator through easy installation and zero-maintenance functionality for end-users.
Questions
What products does Crystal Direct Direct manufacture?
We produce PVC-U windows, composite doors, conservatories, aluminium bi-fold doors, and roofing systems with options for residential and commercial applications.
Are Crystal Direct Direct products UKCA compliant?
Yes, all our products meet UKCA Marking requirements and CE Marking standards for quality and safety assurance.
How can I find a local supplier?
Use our online search tool or contact our Letchworth headquarters directly for approved supplier locations in your area.
Do you offer smart technology integration?
Yes, our Kubu Smart Lock system provides remote monitoring capabilities while maintaining traditional key access for doors.
What sectors do you serve?
We supply new build, refurbishment, home improvement, and commercial construction industries nationwide.
Reviews (6)
Simon Plummer
Jul 21, 2021 Report
Ordered french door and window through B&q and have to say one of the worst decisions Ive ever made their guaranteed delivery of 21 days took 89 days before I recieved the complete order after a series of false delivery dates part order deliveries eg no windows to go with frame or no frame to go with windows.one day delivery was down for and never showed lied to by the staff.I must have rang them 500 times and they answered 10 times with excuses Ive sat with a gap in my summerhouse waiting for my door which they sold elsewhere and had to re order .finally arrived and handle needed taking
Riders Of Rohan
Jul 18, 2021 Report
Absolutely shocking company, ordered french doors over 10 weeks ago. I phoned up before I ordered and asked could they meet the 28 day delivery as stated, they said yes. The worst thing about this company is the constant lies, they have promised me 6 delivery dates so far and not once have they turned up or called to cancelled, they simply do not show up. They are simply not big enough to have screwfix and b&q on their books. Who ever runs this company would be out of their depth as 2nd in command on an ice cream van. Absolutely brain dead. Lie after lie after lie. Screwfix have stopped them placing
P. C.
Jul 13, 2021 Report
Delivered as expected, when fitted made a dramatic improvement on the old windows, good soundproofing , look great.... very happy as are the tenants
James Allen
May 22, 2021 Report
Warning, Do not purchase any products advertised by Crystal-direct. I placed my order for sliding patio doors some 6 weeks ago. Thankfully through a reputable company Screwfix who I had to turn to to in order to retrieve my money. I have been given a string of conflicting delivery dates NON of which where ever going to be fulfilled, as I have battled with this company to learn that they have not even begun the manufacturing of my order. I was then told by supposedly a senior member of staff there that they cannot tell me when or even if they can fulfil the order. The advised to cancel the order
Luke Dwyer
May 06, 2021 Report
DO NOT USE THIS COMPANY. The words useless come to mind when I try to sum up my experience with this company. I placed an order on the 15th April with a 15 days delivery we're now 41 days in and still no items, along with this I received a number of emails confirming the 21st of May as my delivery date to which I arranged a fitter for the following day, a couple of days before I emailed Crystal Direct to ask what time I should be expecting delivery to which I received a email back saying that they had sent me the wrong delivery date in error and the items wouldn't come until the following Tuesday
Oladapo Adegoke
Apr 09, 2021 Report
Ridiculous company that cannot get anything right. I purchased double glazed windows from screwfix it is was manufactured by this company. I got this note after purchase. "glazing is supplied loose on delivery unless requested as factory glazed at which point this is noted in the Specification and glazing detail below". This was not mentioned anywhere on screwfix website. This is misrepresentation. The delivery date has change two times. Stay away if you see the name on any website. I will give this company a zero star if I can.