Business Details
Trusted UPVC Window Specialists in King's Lynn
Established in the 1980s, J & K Glass & Glazing has built a reputation for delivering high-quality UPVC windows, doors, and conservatories across King's Lynn and surrounding regions. Our commitment to craftsmanship and customer satisfaction is reflected in our FENSA registration and 10-year product guarantee. With two manufacturing facilities and a dedicated installation team, we utilise Liniar's lead-free profiles and argon gas-filled units to create energy-efficient solutions tailored to individual needs. Over three decades of industry experience enables us to offer expert guidance from initial design through to completion, ensuring thermal efficiency, security, and aesthetic appeal.Our services extend to seamless aluminium guttering systems and comprehensive conservatory construction, including tiled roofing options for enhanced comfort. By maintaining direct control over production and installation processes, we guarantee consistent quality and reliability. Our team's expertise in double glazing technology, including self-cleaning glass and bi-fold door systems, ensures innovative solutions for both residential and commercial properties. This combination of technical proficiency and customer-focused service has solidified our position as a trusted local provider.
Services
UPVC Windows
Composite Doors
Conservatory Building
Aluminium Guttering
Double Glazing
Highlights and features
- 30+ years manufacturing energy-efficient glazing solutions
- FENSA registered for quality assurance compliance
- 10-year product guarantee on all installations
- Uses Liniar's lead-free, A+ rated profiles
- Full-service from design to installation
Associations and certifications
- FENSA
- Insured Windows Guarantee
Services
UPVC Windows
Our UPVC windows feature Liniar's lead-free profiles with argon gas insulation for maximum energy efficiency. Internally glazed for enhanced security, these A+ rated units reduce heat loss while maintaining aesthetic appeal through multiple style and colour options. Suitable for both heritage properties and modern developments.
Composite Doors
Manufactured with reinforced polymer sub-frames and GRP skins, our composite doors combine durability with thermal efficiency. Five-lever deadlocking systems ensure security, while decorative options include textured finishes that mimic natural wood without maintenance requirements. Available in contemporary and traditional designs.
Conservatory Building
From design to completion, we construct conservatories using the same high-performance materials as our windows. Options include dwarf walls, tiled roofs with insulation, and polycarbonate or self-cleaning glass panels. Our full-service approach includes planning permission assistance and thermal efficiency optimisation for year-round usability.
Aluminium Guttering
Seamless aluminium guttering systems eliminate leakage risks through one-piece extrusion technology. Powder-coated for durability, these low-maintenance solutions come in various colours and are suitable for residential properties, commercial buildings, and educational institutions across Norfolk and surrounding regions.
Double Glazing
Argon gas-filled double glazing units improve thermal efficiency by reducing convection heat loss. Available with toughened safety glass for enhanced security, our systems incorporate modern profiles that maintain structural integrity while lowering energy bills. Self-cleaning options use hydrophilic coatings activated by rainfall.
People
John Engledow
Founder
Established J & K Glass & Glazing in the 1980s, John pioneered local double glazing manufacturing. His vision expanded operations to two factories, maintaining quality control while serving customers nationwide through direct installation teams.
Questions
Do you provide guarantees on installations?
Yes, all installations come with a 10-year Insured Windows Guarantee for complete peace of mind.
Can you assist with planning permissions?
Our team handles all necessary planning applications for conservatory projects, ensuring compliance with local regulations.
What energy efficiency ratings do your windows achieve?
Our UPVC windows achieve A+ energy ratings through Liniar profiles and argon gas insulation technology.
Do you serve areas outside Norfolk?
We cover the entire East of England and supply products nationwide from our King's Lynn manufacturing base.
What security features do your doors include?
All doors feature five-lever deadlocking systems with reinforced polymer frames for enhanced security protection.
Are your guttering systems maintenance-free?
Our seamless aluminium guttering requires minimal maintenance due to one-piece construction and powder-coated durability.
Reviews (4)
M. R.
Mar 07, 2022
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Andrew came round ours as was arranged. Obviously he didn't want to take on the job so didn't bother to send me a quote as he promised. I emailed him to remind him our quote, he asked if someone was round. I replied yes and then no other response. Highly unprofessional.
Mike Adams
Jan 20, 2021
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Excellent, Andrew was so helpful giving us confidence to place our order with them, great advice and recommendations, other suppliers didn't bother to follow up on our initial requests. With J and K we decided to increase our plan to partially replace to replace all windows and added a front and back door, highly recommended!
Nightlamp
Jan 16, 2021
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These people built our conservatory and replaced all our wooden windows, we had arched windows, Three front doors and had Sachs type windows also fitted over 10years ago, they were fantastic price.we had two minor issues (3/7 years in) both fixed without any hassle, when I asked how much they said in warranty! The window and conservatory still all look great, it was well built and still has no leaks and all glass and windows is still fog free, they are well priced the installers for us were brilliant, even buying was hassle free, we were so happy with them recently we even had them do the gutters, soffits and fascia, they weren't the cheapest quote but you get what you pay for, a great job and quality product and these people keep to there word for a worry free time. Thanks J & K.
Brian Goffart
Jun 22, 2020
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Probably the best double glazing UPVC manufacturers and installers in Norfolk, our main supplier of upvc and double glazed sealed units for a number of years now and never had any problems.
