Your Property – Our Passion

CIS is a family run business established in 1976 offering over 40 years of industry expertise – ensuring professionalism & expertise in Exterior Building Cleaning Services.

Bristols only 5 star rated SoftWashing company

Welcome to CIS 1976 External Building Cleaning

CIS has been operating and cleaning the outsides of commercial properties for over 47 years now – offering unrivalled experience and professionalism with over four decades of experience.

Your property is your image and reflects to your staff and clients portraying your company externally – the maintenance of this is essential.

The condition, look and health of your building is our speciality and we provide a number of services to ensure it remains pristine including SOFTWASHING – a chemical treatment to clean and sanitise render, brick, stone, brise soliel and façades, ROOF & SKYLIGHT CLEANING ensuring your roof and natural light are in perfect condition, GUTTER CLEANING to ensure the roof drains correctly and your don’t have costly water ingress, CLADDING CLEANING to keep your property looking immaculate, COMMERCIAL WINDOW CLEANING to enhance the operation of your building and keep staff positive and DOFF STEAM PRESSURE WASHING for all hard surface areas.


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 …..


The safe alternative to pressure washing – offering sanitising and cleaning of multiple surfaces to restore their look and cleanliness.

Window Cleaning

Using a variety of methods to include Reach & Wash, Traditional methods and high levels with use of our company cherry pickers.

Commercial Gutter Cleaning

Specialist gutter cleaning, clearance, & maintenance. Prevent blockages and over-flowing.

Cladding, Fascia & Render Cleaning

New building exterior softwash service cleans algae and discoloration from render, stonework, brickwork, cladding & wood.

Exterior Building Sanitation

SWS Sanitised Certified to carry out exterior building cleaning, disinfection and sanitation.

Roof Cleaning

Commercial roof cleaning including moss and algae removal.

Access Plant Hire ( MEWP )

Hire our specialist truck mounted access platform for high level works and inspections.

Pressure Washing & Steam Cleaning ( DOFF )

Commercial power washing system up to 3000psi ensures the deepest clean is completed.

Solar Panel Cleaning

Gentle cleaning and regular annual maintenance of Photovoltaic and Solar Panels to ensure they remain fully effective.

Stone Cleaning

Stone cleaning needs specialised equipment and technicians to provide a professional clean.

About CIS Exterior Cleaning

Our Mission

To provide you with a service that you will be 100% happy with and a result that will leave you amazed and happy to tell your friends about.

Our Vision

CIS is passionate about YOUR property – our vision is to be known as the very best local business offering you a service that exceeds all your expectations.

We aim to become known as the ONLY choice for all your exterior building cleaning – from the roof to the ground…

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“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