A Brief History Of G S Moore Roofing Contractors Limited

GSM. Team GSM. G. S. Moore Roofing Contractors Limited. We are a proud, family roofing company established in 1983 based in Shirley, Croydon providing roofing works on both commercial and residential properties throughout London and the surrounding areas as well as all the Home Counties.

Being a family run business, we strive to provide an elite, personal service for all clients, existing and new. We can provide a full technical roofing survey and report, by our qualified technical managers. Team GSM strive relentlessly each day to keep up with current legislation and modern day requirements and we are constantly researching and testing the latest products available to give our clients the best options available. We are approved fitters in many top quality roofing products and are RISQS and Chas approved also.

Our many clients include Network Rail, for whom we have provided roofing services to for over 20 years.
Our staff hold Sentinel cards and we are also approved to work on London Underground projects. Other clients include Kings College London, schools, nursery’s, large car parks, Churches and Hospitals to name a few.


1983: G. S. Moore Roofing

Garry Senior along with his wife Deborah, formed G S Moore Roofing (GSM) in 1983 both at the age of 27. Deborah was in full time employment with a firm of Accountants but covered the admin and financial side for the company. Garry Senior worked alongside a trainee, exclusively offering Mastic Asphalt Roofing, Tanking, Paving and Flooring.

The business slowly expanded with direct contracts for Peabody and Guinness Trusts, allowing Garry Senior to increase the labour force to cover the increased volume of works.


1995: Garry Junior and the AELTCC

In 1995 Garry Junior joined the company to learn the trade, working alongside his Father. 
It was around that time Garry Senior was approached by Wimbledon Tennis Club and asked to tender for waterproofing works, to the concrete terracing at the AELTCC. The tender was successful, and GSM carried out Heavy Grade Mastic Asphalt to the first nine rows of the terracing on Centre Court.

The contract was completed on time and within budget, which lead to GSM providing waterproofing and roof maintenance for the entire Wimbledon Complex. A service we proudly continue to provide to this day.

In 1997 GSM were invited to tender for Mastic Asphalt works to two major Railway Stations, Paddington and Waterloo. Again, the tender was successful leading to the re-asphalting of 19 Platforms at Waterloo and 4 at Paddington Station.


1999: G S Moore Roofing Contractors Limited

In 1999 Garry & Deborah formed G S Moore Roofing Contractors Limited as both Directors and Shareholders.

With Mastic Asphalt on the decline, new roofing services were introduced, training and development of staff undertaken, and the company began offering Felting, Lead, Slating & Tiling. More and more works were being carried out within the Rail Industry developing our portfolio.

Their daughter, Sarah joined the company in 2003, initially helping Deborah with the admin but later, became the Office Manager and is now a Director of the company. By now, all aspects of roofing works were being carried out to Station buildings and Line-sides etc, across the whole of the Southern Region.

Garry Senior took a step back in 2018, allowing Garry Junior and Sarah to elevate the company to the success it is today.


2020: Our Biggin Hill Yard

In 2020 we relocated to a bigger yard in Biggin Hill and appointed Mike Moore as our Stock Control Manager.
Originally a Supervisor for GS Moore for over 10 years, Mike plays an integral role liaising with both the office staff and site teams to ensure that we always have a rolling stock of readily available materials which turn, enables GSM to carry out both reactive and specialist works within reduced timeframes.

Mike can be found in the yard cabin Monday to Fridays and with over 30 years roofing experience, he is our go to person with his knowledge of literally hundreds of different products and materials GSM frequently need.


Training and Apprenticeships

GS Moore is a great believer and supporter of training and furthering our employees skill set. We always encourage all our staff to attend courses and annually set aside a large budget to make this happen. You can follow updates on our training and apprentices through our blog using #training or #apprenticeships

Latest Trainees and Apprentices

  • Joe Wallace – Lead Heritage Craftsman
    Joe Wallace joined G.S. Moore Roofing approx 10 years ago as a labourer and has gone from strength to strength passing many training courses and is now a skilled Lead …
  • Teddy Moore – Aged 17
    Teddy Moore is following in the footsteps of both his Father & Grandfather and joined our team at G.S. Moore since leaving school in September 2021. Teddy is on a …