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Business Details
45 Years
experience
Trusted Glazing Solutions in Tewkesbury
Established in 1981, L & L Installations has grown from a local partnership to one of Gloucestershire's leading manufacturers and suppliers of double glazing solutions. Our family-run business specialises in bespoke uPVC, aluminium, and timber windows, doors, conservatories, and secondary glazing systems, combining traditional craftsmanship with modern manufacturing techniques. With over 30 staff members operating from our Tewkesbury headquarters, we maintain strict quality control across all operations, from design and production to installation and aftercare.

Our commitment to excellence is demonstrated through our exclusive OPT i MAL product range, manufactured in-house by trained craftsmen holding at least NVQ Level 2 qualifications. We provide comprehensive 10-year insurance-backed guarantees with free annual maintenance checks, alongside a dedicated service department for remedial work. As FENSA-registered installers (No. 11182) and Which? Trusted Traders, we uphold the highest industry standards while maintaining our core philosophy of customer-first service developed over four decades in business.
Services
Windows Doors Conservatories Secondary Glazing Replacement Roof Systems
Details
  • Year established: 1981
Highlights and features
  • We have been established since 1981, with over 40 years of continuous trading
  • Our OPT i MAL uPVC products are manufactured and installed by our own trained craftsmen
  • Products carry a unique all-inclusive 10-Year Insurance Backed Guarantee
  • We provide free annual inspections for the full guarantee period
  • We are FENSA-registered (Reg. No. 11182) and Which? Trusted Traders
Associations and certifications
  • FENSA
  • Which? Trusted Trader
  • QA National Warranties
What people say
Excellent service all round High-quality products Free annual servicing Professional and friendly team 10-year guarantee
Services
Windows
We manufacture and install bespoke uPVC, aluminium, and timber windows tailored to individual property requirements. Our products combine energy efficiency with security features, available in various styles including casement, flush, sliding sash, and storm windows. Each installation comes with a 10-year insurance-backed guarantee and free annual maintenance checks.
Doors
Our custom-made doors include uPVC, aluminium, and composite options in traditional, contemporary, and luxury designs. We offer stable, French, sliding, bi-fold, and security-focused doors with advanced locking mechanisms. All installations feature our exclusive annual inspection service for the full guarantee period.
Conservatories
We design and build made-to-measure conservatories in Georgian, Victorian, lean-to, and gable-fronted styles. Our structures use high-performance glazing systems with optional integrated blinds and ventilation features. Each project includes a comprehensive survey and professional installation by our trained technicians.
Secondary Glazing
Our secondary glazing solutions enhance thermal efficiency and noise reduction in existing windows. Available in horizontal sliding, vertical sliding, hinged casement, and fixed units, these systems preserve original window integrity while improving energy performance without requiring planning permission.
Replacement Roof Systems
We supply and install modern replacement roof systems for existing conservatories, transforming them into year-round usable spaces. Our insulated solutions include tiled roofs with integrated lighting options, designed to match property aesthetics while improving thermal efficiency and structural integrity.
People
James Attwood
Sales Director
With over two decades of experience in the glazing industry, James leads our sales team with expertise in product specification and customer consultation.
Questions
What areas do you serve?
We operate across Gloucestershire, Worcestershire, and surrounding areas including Cheltenham, Gloucester, Worcester, and Stroud.
Do you offer guarantees on your products?
Yes, all fully installed products come with a 10-year insurance-backed guarantee and free annual maintenance checks.
Are your installers qualified?
Our craftsmen are trained to at least NVQ Level 2 and we maintain direct employment without subcontracting.
Can I visit your showroom?
Yes, by prior appointment, our Tewkesbury showroom displays full product ranges with dedicated customer parking available.
Do you offer repair services?
Yes, our dedicated service department provides repair solutions for uPVC and aluminium glazing products.
Are you FENSA registered?
Yes, we hold FENSA certification No. 11182 for compliance with building regulations.
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