At Pro Seal Service, punctuality and delivering industry-leading mastic sealant & air testing services delivers desired outcomes. Within chosen timescales are our top priorities.
Pro Seal Services is an independent, CSCS-qualified contractor delivering precision mastic sealant application and certified Part L air-tightness testing across London, Hertfordshire, Essex and the South-East. With 10 + years experience, we colour-match and finish interior or exterior joints to a high standard, provide same-day digital test reports, and back every job with a workmanship guarantee and quick, flexible scheduling.
