A construction company with strong foundations

A construction company like no other

Knowles is a proven and established construction company specialising in basements and buildings, shell and core and fit outs – accommodating all basement-related projects in central London and the home counties.

It’s not the beauty of the building you should look at; it’s the construction of the foundation that will stand the test of time.


Building and Basements - Home

Basement Construction

Shell and Core1 final2 - Home

Shell & Core

Unparalled Track Record1 - Home

Ground Works & RC Frames

Structural Alterations - Home

Underpinning, Piling & Structural Alterations

Shell and Core - Home

Temporary Works & Demolition

chesham gallery 5 - Home

Fit Out

Experience Matters

With over 20 years experience in construction, underpinning and basements Managing Director Robin Knowles is ever-present on each project undertaken at every level.



Unparalleled Track Record

With Knowles, you can expect your basement construction project is in the best possible hands.


Highest Health & Safety Standards

Knowles understands that the health and safety of its workforce and those affected by its operations is of paramount importance.


Considerate Construction

The reputable experts at Knowles fully appreciate the need to make a construction project as quick and painless as possible – for everyone involved.



Five Basement Design Issues London Architects Need to Consider

In London, retrofit basements are all the rage, providing a luxurious solution to limited space and adding serious value to a property. Whether there’s a requirement for a family room, music studio, personal gym or an office area, choosing experienced and trustworthy...

read more

Sebastian’s Action Trust

Knowles and Associates would like to introduce Sebastian’s Action Trust; a charity we are proud to sponsor. Sebastian’s Action Trust supports families of seriously-ill children from diagnosis, through treatment and beyond. They believe all families with seriously-ill...

read more

Please trust us we will never send you spam.