Cleaning Time Corby were called out to a sandstone patio that had been badly affect by dampness & black spots. Our client wanted us to remove the black spots and make it like new again. Although we can remove up to 95% of black spots we advised our client that all of the blackspots may not be able to be removed. 

We then proceeded on to completing the job using a high powered jet washer & hypochlorite solution to treat the spots. The process consisted off applying the solution and then waiting for this to work. Once this had time to dwell, we then power washed this off making the sandstone patio look like brand new!