National Sewerage Association

of the United Kingdom

It is with great regret that we have to advise that after 43 years in the forefront of assisting in setting and maintaining standards that we have to close the Association.  We would like to thank all those who have been our collegues and clients over the years.

The members of the National Sewerage Association have generally been engaged in the inspection and maintenance of drainage and sewerage systems working to nationally accepted standards. Some specialise whilst others provide a broader range of services.

If you are new to the industry, please do look at our News and Information area for more detailed information about issues relative to our industry.

If you would like additional information, the Secretary will be pleased to assist until the end of 2023.




It has been noted that some companies continue to display the NSA logo when they have rescinded membership of the Association.  Please check the membership list to ensure that their membership is still current.  We are only able to offer an arbitration service in respect of current members.  This service will cease to exist on 31st December 2023.