Business Details
25 Years
experience
Bespoke Windows & Doors in London
At Perfect Crystal Ltd, we have been delivering professional, high-quality glazing solutions since 2001. Our made-to-measure windows, doors, and glazed roofs are crafted with precision engineering and installed by FENSA-qualified teams. We prioritise bespoke design, using premium materials like Pilkington glass, Accoya timber, and Yale locks to ensure durability and aesthetic appeal. Our 10-year warranties on frames and sealed units reflect our confidence in product longevity. With over 85% of our work coming from client referrals, we maintain a reputation for honesty, technical expertise, and client-centric service.Our North-West London factory combines advanced CNC machinery with skilled craftsmanship to meet exact specifications. Sustainability is central to our operations, with responsibly sourced FSC-certified timber and energy-efficient designs reducing environmental impact. We serve Greater London and surrounding counties, offering nationwide installations, and welcome visitors to our Park Royal showroom to experience our products firsthand.
Services
Timber Windows
Aluminium Windows
UPVC Windows
Conservatories
Glazed Roofs
Glass Partition Walls
Bi-Folding Doors
Secondary Glazing
Roof Lanterns
Composite Doors
Details
- Year established: 2001
Highlights and features
- Bespoke solutions tailored to exact specifications
- FENSA-qualified installation teams for compliance assurance
- 10-year warranties on frames and sealed units
- Sustainable materials including FSC-certified timber
- 85% of work sourced from client referrals
Associations and certifications
- FENSA
- BSI
What people say
Excellent customer service
Quality installations
Bespoke solutions
Highly recommend
Durable products
Services
Timber Windows
Our timber windows combine traditional craftsmanship with modern energy efficiency. Made from responsibly sourced FSC-certified hardwood, they offer superior insulation and durability. Each window is custom-built to match architectural styles while meeting contemporary performance standards.
Aluminium Windows
Lightweight yet robust aluminium windows provide sleek, low-maintenance solutions. Designed with thermal breaks to prevent heat loss, they feature 10-year warranties against discolouration. Ideal for modern properties requiring slim frames and enhanced security.
Glazed Roofs
From flat skylights to lanterns, our glazed roofs maximise natural light and thermal efficiency. Constructed with triple-glazed units and aluminium frameworks, they offer 5-year warranties on sealed units and 10-year structural guarantees.
Bi-Folding Doors
German-engineered bi-folding doors provide seamless indoor-outdoor transitions. Available in aluminium or composite materials, they feature multi-point locking systems and 10-year installation warranties for enhanced security and longevity.
Secondary Glazing
Tailored for conservation areas, secondary glazing adds thermal efficiency without altering original windows. Our solutions include slimline frames and acoustic glass, offering 5-year warranties while preserving historical authenticity.
Questions
Do you offer energy-efficient window options?
Yes, we provide A-rated windows as standard, with triple glazing and secondary glazing options to reduce energy costs.
Are your installers certified?
All our installers are FENSA-qualified, ensuring compliance with UK building regulations for windows and doors.
What warranties do you provide?
We offer 10-year warranties on frames, 5 years on sealed units, and 3 years on hardware installed by our team.
Can you supply bespoke sizes and designs?
Yes, all products are made to order following an onsite survey to meet your exact specifications and property requirements.
Do you serve areas outside London?
While based in London, we supply and install products nationwide, with free delivery within the M25 for orders over £3,000.
What materials are available for doors?
We manufacture doors in timber, aluminium, uPVC, and composite materials, with over 200 RAL colour options available.
Videos
Reviews (7)
Cheryl Farley
May 30, 2022
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ORDER NOT DELIVERED. I would give zero stars if I could. Initial impressions were great and Oliver in Sales was responsive and helpful. French doors ordered in late March with an estimated completion date of 9 May have not arrived and despite a month of chasing for updates I have been fobbed off with ludicrous excuses like there is no way for customer services to contact the manufacturing team other than by email and no one has responded. I see that others who placed orders in the last 4-5 months have had the same experience.
Izzy Ladbon
May 24, 2022
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Such poor service. The windows should have arrived a month ago but still no sign. They are also charging us extra for bicolour doors, but these will make the process take an extra month, we can't have a refund for single colour doors. The service is poor, they take no accountability. I would not recommend them.
Anna Tyzack
Apr 23, 2022
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Do not use this company. Customer service is non existent; windows ordered in December with a lead time of 6 to 8 weeks have still not arrived. We are now being told maybe May. No date given. No one will give us an explanation, a straight answer or an apology. Avoid.
Siddhartha Nanda
Apr 12, 2022
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Konrad from PCW is a very good sales and relationship management staff member who went out of his way to help us take measurements and advice on the best fit and style. The experience with PCW has been wonderful so far! I would go as far to say that without Konrad I may not have placed the order with PCW, as he makes all the difference in the customer experience. I placed my order this week, so will post another review post installation.
Munaf
Apr 05, 2022
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Terrible service, I'm was planning to change my house windows so I have sent them an email with all the dimentions and pictures of the windows that I need to change they were 8 windows in total, I went to the showroom in Park Royal and I meet Julian, we discussed all the options then we left waiting for the quote, we didn't get any respond so I give them a call, they told that Julian on annual leave but I can try to call him which he did not answer, I called back and sent the same information to Klaudia and I didn't get the quote from her I called back then Oliver told me that Klaudia on the annual leave also so I sent the same information to Oliver and quess what I DID NOT GET the QUOTE YET! it's almost two weeks now, So if they are not able to handel a quote properally so how they will handel the windows, I think they are unreliable so I've decide to share my experince with them
Enrico Sulis
Mar 14, 2022
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Had windows installed a week ago and have to say from the first phone call to installation I couldn't fault the company and team. The quality is great, attention to detail and workmanship was faultless. The head of install even turned up unannounced to check on progress of the install and ensure all ran smoothly as my window setting wasn't the easiest to deal with. Oh and having researched and rang round and had countless quotes, their price point was very reasonable. Would recommend. Thanks guys!
Kiki Darlowe
Mar 10, 2022
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Konrad from PCW is quite literally a dream to work with. I spoke with a number of different window companies before choosing to go with PCW and the experience with them so far has been absolutely wonderful. My windows have not yet been installed (as they have just been order) so I will post another review when that has happened, but the order process was absolutely brilliant and Konrad really went above and beyond to help us find the right fit. Thank you so much.
