Service Penetrations, Construction Joint Sealing and Movement joint installation


Unfortunately, concrete placement is not an exact science and issues can be caused by poor compaction, placement during inclement weather and poor design to name just a few reasons. Typically the weak spots that will be susceptible to leaks will be the service penetrations & construction joints. CRS have over 35 years experience in sealing leaks through these areas.

Movement joints, sometimes referred to as expansion joints, our critical elements within concrete structures that expect a degree of movement during their life. CRS have experience in installing a myriad of movement joints dependent of the expected movement of the concrete structures both horizontally and vertically.


Please see some of our frequently asked questions. If you have any further questions or queries, please feel free to give us a call on 01293 447881, email us at, or click here to contact us online.

How long have you been in business for?

CRS has been running for over 30 years and in this time has gained a wealth of knowledge and experience in dealing with a myriad of concrete repairs.

Do you provide a guarantee for your works?

We have to look at each project individually but generally for the application of waterproof coatings and the sealing of service penetrations we would offer a 10 year guarantee.

Are you available for a site visit to inspect and advise on remediation method?

For most projects we would insist on visiting site and having a walk round with the customer so we get a full understanding of the requirements and the physical condition of the items we will repair.