Large scale extensions

As Principal Contractor, Knowles provides an all-encompassing construction service to clients and professional teams, taking a project from concept to completion and beyond. We thrive on the schemes that other contractors shy away from. Our commitment to in-house management on every project guarantees a consistent approach and the best experience for our clients.

The established reputation of our management and in-house teams has made Knowles a trusted partner for architects, quantity surveyors, professional teams and private clients. Our long-standing presence in London and the Home Counties means that we are expertly-versed in the complexities and challenges of working with councils and privately-owned estates, including The Royal Borough of Kensington and Chelsea and Westminster Council, as well as the prestigious Grosvenor and Cadogan estates.