L+L Installations - Gloucestershire’s leading bespoke windows, doors & glazing project specialists 

L+L Installations  Gloucestershire’s leading bespoke windows, doors & glazing project specialists 

ABOUT US 

Bespoke windows, doors & conservatories in Gloucestershire 

Since 1981, John & David Lannen along with their trusted team at L+L Installations have developed an unrivalled reputation as one of Gloucestershire’s leading manufacturers and suppliers of double glazing in uPVC, aluminium and timber. 
 
As a family-run company, the L+L team firmly believe in delivering high-quality products and outstanding service, all at an affordable price. 
 
From a humble partnership installing other manufacturers windows & doors in the Tewkesbury area to a manufacturer of their own OPTiMAL range of uPVC windows & doors, covering Gloucestershire & beyond, the L+L team has grown steadily to the well respected customer focused company it is today. 
 
From a single window or door, to a grand design project with multiple glazing requirements & everything in between, we can help. We also undertake various types of remedial work through our highly experienced service team. 

We offer lengthy guarantees and free annual maintenance checks on all products as standard! 

VISIT US 

Our Showroom 

Why not book an appointment to visit our unique showroom located in Tewkesbury, alongside the river with free customer parking, and just a few miles from Cheltenham, Gloucestershire and Worcestershire. 
 
Here, you can experience our extensive range of Doors, Windows, 
Garden Rooms and Secondary Glazing, together with our very popular OPTiMAL range, an advanced selection of windows and doors, manufactured by hand in our factory and exclusive to L+L. 
 
Get in touch today to discover our latest offers and arrange your appointment. 

EXPLORE OUR PRODUCT RANGE 

 

Windows 

 

Doors 

 

Conservatories 

 

Secondary Glazing 

 

Replacement Roof Systems 

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REPUTATION 

Established I Local I Reliable 

Under the successful stewardship of founders John and David Lannen, the L+L philosophy of “customer first” continues to dominate everything we do. 
 
Both the day-to-day operations and the long-term development of the company are focused on quality and customer service. 
PRODUCTS 

Our Range 

Our uPVC products are all designed, manufactured and installed by us. 
 
We also offer a selected range of aluminium and timber items. These are sourced from manufacturers that have been scrutinised by our technical team to ensure that the quality of these products reflects that of our own. 

L+L currently employ over 30 staff involved in sales, survey, manufacture, installation, service, administration and customer care.