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About Us

At Lewis & Graves we have a deep personal commitment, with honesty and integrity at the core of our business ethic

Our philosophy is to constantly monitor and review the way we do things: innovating and creating, challenging and overcoming – applying this approach to all our contracts. We improve by continually testing and evaluating new materials, equipment and methods of working. Not only to constantly raise the standard of service, but also to add value for our clients.
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Whatever the location, whether corporate, governmental or educational, we’ve a range of services
to cover any requirement and much more

Cleaning & Support
Office Cleaning Nationwide
Pest Eradication and control
Grounds Maintenance
Emergency Cleaning Services
Window Cleaning
Recycling Solutions
Graffiti Removal & Protection
Painting and Decorating
Electrical Services

Everything we do is underpinned by our British Standards Institute (BSI) ISO 9001, ISO 14001 and OHAS 18001 quality assurance accreditation and PAS2060 Carbon Neutral certification.

ISO 9001 Quality Standard

FS 550395

Lewis & Graves gained this prestigious award in 1994. To ensure compliance to the quality system we are audited on a six-monthly basis.

ISO 14001 Environmental

EMS 550396

Lewis & Graves achieved ISO 14001 environmental accreditation in 2009 after working closely with Carbon Footprint Ltd a leading consultancy in sustainability.

ISO 18001 Health & Safety

OHS 582404

Lewis & Graves is pleased to have achieved the standard for environmental accreditation management in 2013.

PAS 2060

As a measure of Lewis & Graves’s commitment to the environment we achieved Carbon Neutral status in 2009. We offset 100% of our carbon usage and meet the requirements of the official standard.

Environmental Agency

Lewis & Graves is committed to ensuring that all our employees follow our environmental policy and adhere to best practice wherever reasonably practicable. We are registered with the Environmental Agency and abide by its waste disposal policy.

Federation of Window Cleaners

This organisation sets the standards and Health & Safety parameters for window cleaning. The federation’s safety handbook forms part of our training régime and a copy is issued to all our window cleaning staff.

British Institute of Cleaning Science

Lewis & Graves is a corporate member of BICSc and hold their nationally recognised CPSS qualification for the cleaning industry. Our membership demonstrates our active and material support to the Institute in its aim to raise environmental standards, through training and education.

Energy Saving Opportunity Scheme

Lewis and Graves Partnership to date have offset 606 tonnes of CO2e and planted 128 trees in the UK, by supporting UK tree planting and renewable energy projects around the world, we are very proud of this achievement.

Our Team

Mark Graves

Managing Director

As the driving force of Lewis & Graves with over 35 years’ experience in the cleaning industry, Mark carries his ethos of a ‘partnership’ to every contract. He regularly visits our clients to make sure things are running smoothly and his enthusiasm and passion are recognised by every member of the team. Mark is a corporate member of British Institute of Cleaning Science.

Keith Lewis


Keith controls the financial and contractual side of the business, personally overseeing each contract to ensure that the most efficient and safest methods of work are implemented for the best possible result. Keith holds regular seminars and toolbox talks where his operational experience is cascaded to our staff.

James Abbott

Senior Operations Director

With his personable, hands-on approach and 20 years’ experience in the cleaning industry, the company’s day-to-day operational control rests with James. He supervises all our Area Managers and contracts to ensure that they mobilise as efficiently and seamlessly as possible.

Roy Watson

Operations Manager

Roy has been in the cleaning industry for the last 32 years since joining L&G and has a wide spectrum of experience working on educational, Health Authority and Private Sector sites. Roy has a number of qualifications including: BICSc Trainer for CPSS, BICSc CPSS Levels 1 & 2, NVQ Level 2 and also a BICSc Licence to Practice.

Jason King

Sales and Marketing Manager

Jason has been involved in Facilities Management since 2002 when he first joined L&G. During this time he has run a number of high profile and prestigious contracts for L&G. He has experience on both the operational side and technical side of the business. Jason holds a number of qualifications including: BICs, BICs Trainer/Assessor, NVQ Level 2 & 3 in management.

Tracey Parker

General Manager

Tracey has been with Lewis & Graves for over 20 years and has helped make the company what it is today. Together with confirming that all our contracts have sufficient support and managing office operations, Tracey liaises daily with Directors, Operations Managers and Area Managers to ensure the company runs smoothly.

Jason Aves

Health & Saftey Manager

With 25 years’ experience in different aspects of the cleaning industry.
His main role is the companies compliance to health and safety, environmental, quality and training.
Qualifications and certifications include BICSc, CPSS, NVQ 1-3, IOSH, NEEBOSH, PASMA , IPATH and more.


Don’t take our word for it – here’s what our clients say:


The Sydney Russell School

Just a quick email to say thank you for the very clean school we had last night!
Some parents commented how clean the school looked and how fresh it smelt, it really did have an impact
Please pass on my thanks to everyone


Limes Farm Junior School

I just wanted to say that the school looks magnificent! Your team did a wonderful job and it was a pleasure walking into the school on my first day back and casting my eyes around the school. There have been several compliments made by our parents and staff and felt it was important to let you know.


West Kent & Ashford College

Lewis and Graves approached the college and ask could we assist Lewis and Graves in being the first college in their company wide project to have an electronic dashboard system installed onto the colleges computer system to monitor all health and safety aspects of the college regarding the cleaning contract.
We jumped at the chance to have such information at our finger tips, being the nature of our curriculum is that of heavy industrial courses and safety is paramount for us.
I must say the system built for us was very professionally presented and a very usefully tool to monitor all health and safety and environmental risks.
This has also proved to be usefully to the colleges external auditors. Thank you again to Lewis and Graves for this excellent software


USP College

I wanted to send a note to acknowledge the outcome and feedback received as part of an audit carried out at our Seevic Campus by the British Standard Institution. The audit was in relation to our cleaning team managed through Lewis and Graves Partnership Ltd and our onsite Cleaning Manager and Supervisor.
The audit was passed with flying colours, no no-conformities, or observations raised, this is no easy task accomplished by our dedicated onsite team. Auditors commented on how clean and organised the campus was and also how polite staff were. Reception staff were praised for being very welcoming and polite and in addition, engaging in a swift and efficient signing in process including security measures to ensure the auditors were accompanied appropriately. The visit was impeccably organised.