About Us

GSL Cleaning Services was an independent, family run cleaning company located on the south side of the river in London, providing efficient and reliable cleaning/support services to commercial, construction, domestic sectors, as well as providing security services to the people and businesses of London and surrounding areas.


GSL Cleaning has expanded in the last two years; it started as an LLP, progressing to LTD in 2014. This has had a major impact as the Director Marlon Mendoza; a young entrepreneur has turned the small family business into a well reliable, respected and prestigious cleaning company in south London.

Networking around London has had an excellent outcome, as we are now part of some great government projects and currently working for local authorities, such as Lambeth council and supporting local labour around London for FM companies.




At GSL Cleaning Services Ltd, we make sure all our services are handled with the utmost professionalism and care at very competitive rates, with highly trained, honest and a security conscious team.

We are equipped with skills and expertise to undertake all the technicality of cleaning and security requirements with dedication to details.


GSL is devoted to providing top quality services to our clients and customers – putting their needs and expectations at the forefront of our business.

We are committed to ensure all your needs are met, by monitoring and carrying out regular on-site checks to certify everything is running smoothly, making appropriate recommendations and changes to our cleaners and security team, whom are operating the site from a day-to-day basics.


We aim to be consistently improving our team of professional supervisors, cleaners and managers to meet all health and safety regulations asked via the British Institute of Cleaning Science.

Our mission statement is to provide the highest quality cleaning services to both commercial and domestic   clients, by exceeding our service expectation at a program to suit your individual needs and budget.




Our Clients

We are currently a part of a local government programme which Lambeth council is running to help local SME's to expand and giving them the opportunity to work for main suppliers, such as Cofely Workplace Limited on the Lambeth contract. With daily duties; such as deep cleans of core and noncore buildings, involving Brixton Town Hall, libraries, youth centres, council office buildings, cemeteries, one o'clock clubs, adventure playgrounds, schools and leisure centres. We also under take 24-hour emergency call-outs from the smallest to the biggest jobs.

Cofely Workplace Limited has open their doors for GSL to work for them as a sub contractor for other companies, such as Balfour Batty Rail, Skanska,  and Network Rail.

GSL Cleaning Services Ltd is also a part of many supply chain construction companies, such as ST George on the Berkeley Group, roof construction and Balfour Beatty construction, which we have carried out after builders clean for Secret Heart school.




We deliver value for money


We deliver experience and quality


Fully trained and motivated staff


24 hour service and customer help desk


Regular site visits from management


Locally based supervisors


Contact Us

GSL Cleaning Services Ltd

Register Office

93-95 Borough High Street

1st floor



(Trading Office)

45 Saxby Road

Brixton Hill


United Kingdom

tel : 02036894176



Company N. 08918699

VAT Reg N.  202252761


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