Your Property – Our Passion

Bristol’s longest established family exterior cleaning company – providing commercial & residential services throughout Bristol and the surrounding areas.

Bristols only 5 star rated SoftWashing company

How we can help

Welcome to CIS External Building Cleaning – Bristol’s longest established family exterior cleaning company.

How can we help you ? On our website you will find details of all our services covering Commercial & Residential exterior cleaning from patios to car parks, roofs to render, skylights to cladding & guttering to windows with everything in between.

CIS is a family owned business that has been operating for 48 years now covering Bristol & the South West, we every much pride ourselves on that Personal & Professional approach – we are here to listen and understand your requirements, to provide you with the information and detail you need, to help you make an informed choice, providing you with a service that will ultimately meet and surpasses your expectations.

Your property is our absolute passion and we love cleaning buildings

You’ll find all the details you require on our website from short videos showing our working processes, case studies of the work you are looking at, our comprehensive service offering and also the pricing element where possible – so you have all the details you need to enable you to proceed with us and work closely with CIS External Building Cleaning. 

If you have any exterior cleaning we have not mentioned please do let us know, as our combined knowledge of over 100 years within the industry will no doubt have an answer to your request !

Over 48 years of exterior cleaning within Bristol & South West

Combined knowledge of over 100 years within the cleaning industry

All our services and all you need to know can be found within our website

Your property is our passion – we simply love cleaning buildings !


Do you have organic staining (lichen, moss, algae) on your roof or discoloured render around your property on pathways,  driveway or decking ?

CIS can provide you with a fully trained and insured team of professional lead technicians that can treat and transform your property and you wont believe the results.

CIS will send in one of our friendly and knowledgeable Territory Managers who will assess and discuss with you exactly how we can help and what we can offer in terms of external building cleaning – remember Your Property Is Our Passion and we’d love to speak further with you.


As a family business we understand the importance of all the elements its takes to really improve the look of your property – correctly planned preventative maintenance will ensure your property looks great and works for you long term.

CIS External Building Cleaning has a passion for your property – a market leader in the industry in the South West we are the choice for many clients with over four decades of passion and experience 

Helpful information

Read our knowledge base and watch our short videos


Knowledge Base >


Short Videos >

“We use CIS Gutter Cleaning on multiple contracts throughout the South West & South Wales to not only clean but inspect our clients gutters ensuring maintenance costs are reduced. Their ability to act efficiently and offer additional services where they feel applicable like the Softwash Render Cleaning and Power Washing Service is perfect as they know the sites so well”

Sarah Regan Senior Manager, Hazelvine

Some of Our Clients



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