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Mastic & Sealant Services UK

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

Professional internal and external mastic and sealant application – fire-rated, expansion joints, bathrooms, kitchens, curtain walling and commercial projects.

UK-wide coverageFast photo quotesLive-site ready

UK-wide coverage

Nationwide service for commercial and residential clients.

Fast photo quotes

Send photos and get honest advice and a price quickly.

Live-site ready

Built for occupied homes, hotels, retail and construction.

Colour-matched finishes

Colour-matched, durable repairs that blend into the surrounding surface.

What We Repair

Specialist in-situ repair and refinishing across mastic and sealant joints. Pick a service or send photos for advice.

Internal Mastic Application

Neat internal mastic and silicone application and replacement around worktops, splashbacks and sinks for a clean, watertight seal.

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External Mastic Application

Weatherproof external mastic and sealant application to joints, cladding and facades.

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Fire Rated Mastic

Professional fire-rated sealant application for compliant commercial and construction environments.

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Expansion Joint Sealing

Sealing and resealing of expansion and movement joints in floors, walls and facades.

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Bathroom Sealing

Replacement of failed, mouldy or discoloured silicone and mastic around baths, showers and basins for a hygienic seal.

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Curtain Wall Sealing

Specialist sealing and weatherproofing of curtain walling and facade joints on commercial buildings.

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Commercial Sealants

Large-scale internal and external mastic and sealant works for commercial and construction projects.

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Common Damage We Fix

Chips
Scratches
Cracks
Burns
Dents
Scuffs
Failed coating
Water damage
Worn finish
Colour mismatch

Materials & Surfaces We Cover

SiliconePolyurethaneFire-rated sealantHybrid sealant

Our Process

1

Send photos

Share a few photos of the damage and we assess what is possible.

2

Quote & schedule

We confirm an honest price and a convenient time to attend.

3

On-site repair

Our technicians repair and refinish in situ, cleanly and quickly.

4

Colour-matched finish

We colour-match and blend so the repair blends in.

Before & After: Mastic & sealant repairs

A selection of the repair types we carry out. We’re adding real before-and-after photos for each — check back soon, or ask us to send recent examples for your job.

!Before
✓After
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Bathroom resealingSample layout — real photos coming soon
!Before
✓After
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Kitchen resealingSample layout — real photos coming soon
!Before
✓After
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Expansion joint sealingSample layout — real photos coming soon

Before and after, on real jobs

Photographed on site by the technicians who did the work. Drag the divider across each one.

window frame mastic, damage before the repairThe same window frame mastic after the repair
Old mastic removed and reapplied
window reveal / sill, damage before the repairThe same window reveal / sill after the repair
Reveal made good and refinished

Frequently Asked Questions

Can you repair mastic and sealant joints on site?

Yes. Almost all of our work is carried out in situ, with no need to remove or replace the surface.

How much does it cost?

A repair typically costs a fraction of replacement. Send us a few photos and we will give you an honest, no-obligation price.

Will the repair be noticeable?

No. We colour-match and blend the finish so repairs blend in normal use.

Do you work nationwide?

Yes. We cover the whole of the UK for commercial, construction and residential clients.

Don’t replace it — repair it properly.

Send a few photos and we’ll come straight back with honest advice and a fast quote.

Constructionline Gold accredited
Guild of Master Craftsmen member
LSC accredited
Rated on Trustpilot
CSCSAccredited
IPAFAccredited
PASMAAccredited
SSSTSAccredited
SMSTSAccredited
Constructionline Gold accredited
Guild of Master Craftsmen member
LSC accredited
Rated on Trustpilot
CSCSAccredited
IPAFAccredited
PASMAAccredited
SSSTSAccredited
SMSTSAccredited
Don’t replace it — repair it properly.UK-wide hard surface repair specialists. Send a few photos and we’ll come straight back with honest advice and a price.

UK-wide hard surface repair specialists. Repairing kitchens, bathrooms, doors, floors, stone and more — saving the cost, waste and disruption of replacement.

☎ 01268 975269 ✉ info@shazamrepairs.co.uk ● Benfleet, Essex · Nationwide coverage
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