About PJ Mastics
A family run business in the heart of Norfolk.
About PJ Mastics LTD
Welcome to PJ Mastics LTD. We are a premier, family-run sealant application specialist based in Norfolk, delivering flawless, professional joint sealing across residential, commercial, and industrial sectors.
With a combined 53+ years of hands-on industry experience, we have built a reputation for reliability, precision, and unrivalled trade knowledge.
Our History & Heritage
PJ Mastics LTD was officially established in 2010 by Peter, but our roots go back much further. Peter began mastering the trade in the early 1980s, later launching PJ Sealants in the 1990s. Today, the business is proudly run as a father-and-son team. Having grown up in the trade, we live and breathe sealant application.
We aren’t a massive agency that sends temporary sub-contractors to your site. We are a family business, which means our personal reputation is on the line with every single joint we seal. To us, perfection isn’t just a target—it’s personal.
What We Do
From intricate domestic refurbishments to heavy-duty industrial developments, we handle literally any sealant application. Our expertise includes:
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Commercial & Industrial: Concrete floor expansion joints, warehouse slabs, schools, hospitals, and high-specification internal/external sealing.
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Residential & Housing: Internal sanitary ware (bathrooms, showers, kitchens), cosmetic internal sealing, and external window/door perimeter seals.
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Refurbishment & Remedial: Removal and replacement of failing, mouldy, or weathered sealants.
Why Choose PJ Mastics LTD?
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Unmatched Accountability: Because our names are attached to our work, we take immense pride in leaving a clean, razor-sharp, flawless finish every time.
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Long-Standing Client Relationships: We have spent decades building a loyal client base that ranges from major regional building contractors and local businesses to individual homeowners. Our clients trust us implicitly and call us back project after project because they know we deliver on our word.
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Fully Accredited & Compliant: Main contractors can hire us with total peace of mind. We meet the highest industry standards for safety and competence:
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Fully CHAS Accredited (SSIP)
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NVQ Qualified in Sealant Application
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100% CSCS Card Compliant
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