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GBG Building Services Ltd




Your property is in the best hands. We’ve been renovating architect-designed period homes in London to exceptional standards for the last 15 years. We cannot wait to renovate yours.


We are driven by a passion for the bespoke restoration of London’s finest architectural homes.

GBG Building Services Ltd was established in 2005 by Mariusz Gawecki, with his father Eric joining as a Site Manager. During the past fifteen years of growth and building partnerships, we’ve gained experience in prime property construction and refurbishment, delivering projects for our clients across London.  Our team brings its technical and project management expertise, as well as exemplary craftsmanship, to every building project, helping our clients’ designs come to life. The team consists of engineers and project managers, as well as long-standing craftsmen, who have over 30 years of experience with various finishes from marble to wood, glass and metal.

We want to show you that there is a better way to renovate your or your Clients home.

Reliability in construction is not an impossible goal. Delivering well-managed renovation projects with clean sites and efficient communication at all levels, within an agreed time frame, is what we excel at. We analyse site complexities, potential risks and delays, and the requisite specialist skills to advise on buildability early on during pre-construction meetings, then adapt quickly to ever-changing build environments to keep additional costs at a minimum. We provide honest and realistic pricing based on over 30 years of on-site experience.

This is the method of work that we have chosen. Will you join us?


For your additional peace of mind, we are proud members of the British Institute of Interior Design as Industry Partners. We won Best of Houzz Service awards three years in a row and we also offer a minimum of 12 months guarantee.

Project size: Our projects range in value from 100k - 2.5M.