Commercial Mastic Services
In-situ repair of worktops, stone, baths, doors and frames. Most jobs finished in a single visit, with no rip-out and no replacement cost.
- Constructionline Gold
- CSCS
- IPAF
- PASMA
- SSSTS / SMSTS
- Fully insured
Repair over replacement
Commercial Mastic & Sealant Services UK
Professional mastic and sealant application for commercial, construction and high-end environments.
Shazam Repairs provides clean, consistent and reliable sealant finishes across a wide range of projects — supporting contractors, developers and fit-out teams nationwide.
From large-scale commercial installs to detailed finishing work, we deliver high-quality results that meet specification and handover standards.
UK wide coverage
Nationwide response for commercial and residential work.
Fast response
Send us a few photos and we will reply quickly with honest advice and a price.
Live site ready
Built for construction, hotel, retail and occupied spaces.
Professional Sealant Application for Commercial Projects
We provide expert mastic and sealant services across a wide range of applications, ensuring durability, flexibility and a clean finish.
Our services include:
- Internal and external sealant application
- Expansion joints and movement joints
- Bathrooms, kitchens and wet areas
- Window, door and façade sealing
- Floor joints and perimeter sealing
- Fire-rated and acoustic sealants
Nationwide Coverage
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We operate across the UK, including:
London, Essex, Manchester, Birmingham and surrounding areas, supporting both small-scale works and large commercial projects.
What we do
Built for Construction & Fit-Out
Our teams work closely with:
Main contractors
Fit-out companies
Developers
Facilities management teams
location location
Where We Work
We deliver mastic services across:
Commercial buildings
Office fit-outs
Hotels and hospitality
Residential developments
Retail environments
FAQ
Before and after, on real jobs
Photographed on site by the technicians who did the work. Drag the divider across each one.
FAQ
What is mastic used for in construction?
Mastic is used to seal joints, prevent water ingress, allow movement between materials and provide a clean finished appearance.
Do you provide fire-rated sealants?
Yes — we can install fire-rated and specialist sealants where required to meet project specifications.
Can you work on live sites?
Yes — we regularly operate in live environments with minimal disruption.
Do you supply materials or labour only?
We can provide both supply and application depending on project requirements.
OUR RESULTS
Fast response · UK wide coverage · Trusted by commercial clients
Need Mastic Works Completed Properly?
Send us drawings, specs or photos and we’ll provide a fast, competitive quote.
Frequently Asked Questions
What is a mastic replacement service?
Mastic (silicone sealant) around baths, showers, kitchen worktops and windows can degrade, crack, go mouldy or lose adhesion over time. We remove the old sealant completely and apply a fresh bead of appropriate mastic in your choice of colour.
How often should bathroom mastic be replaced?
Bathroom silicone typically lasts five to ten years before it begins to crack, shrink or develop mould. If you see black spotting, gapping or lifting, it is time for a replacement — a quick job that prevents water ingress and damp.
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