
At New Concept Construction Limited, we specialise in providing professional mastic sealant services for expansion and movement joints. With decades of experience and a fully trained team, we understand the importance of correctly sealing these joints to maintain the structural integrity of buildings. Our services are ideal for house builders, the construction industry, and the commercial sector, ensuring that your building can accommodate natural movement without compromising its safety or appearance.
Expansion and movement joints are essential for allowing buildings to adjust to shifts in temperature, load, and settlement over time. Proper sealing with high-quality mastic sealant ensures that these joints remain flexible, preventing damage to the structure and prolonging its lifespan.


At New Concept Construction Limited, we pride ourselves on delivering exceptional mastic sealant services that meet the highest standards of quality and reliability. Our NVQ-trained and CSCS-certified team is dedicated to providing a professional service, ensuring that every expansion and movement joint is sealed to perfection.
We understand the unique requirements of expansion and movement joints and use only the best materials and techniques to ensure your building remains protected. Our competitive pricing, combined with our commitment to exceptional workmanship, makes us the trusted choice for mastic sealant services across London, Essex, Kent, Surrey, Sussex, and Hertfordshire.
NCC have always provided me with a reliable, high standard of service and quality.
We strongly recommend your workforce, who are reliable, polite, pleasant and their workmanship is of the highest quality.
NCC have always provided an exceptionally high quality of service. I used them previously at Barratt London and subsequently at London Square and have never had any issues. The site managers are also very happy with their workmanship, and proactive and user friendly approach on site.