
Silicone Sealant & Mastic Specialists — Chatham, Kent
Chatham Based SiliconeSealant Specialists CoveringLondon & the South East
A family-run team with over 25 years in the trade, providing professional silicone sealant services for everything from bathrooms, kitchens and home improvements to new-build developments, commercial premises and large-scale construction projects. Free quotes — small jobs priced straight from your photos.
Free, no-obligation quotes · Small jobs priced from your photos · Family-run, Chatham based · Open Mon–Sat, 7am–7pm
- £2m public liability
- CITB accredited
- CSCS carded
- RAMS on request
- 25+ years' experience
- Mon–Sat, 7am–7pm
Send us a photo — we'll quote it free
Bath, shower tray, worktop or window perimeter: a couple of photos are usually enough for a fixed price on smaller jobs.
Free fixed quote
Send us the job
25+
years in the sealant trade
£2m
public liability cover
12
specialist sealant services
10
areas covered across Kent & London
Who we work for
One trade, two kinds of client
— and equal focus on both

Homeowners
Sealant that has gone black, split or lifted is the fastest way to make a good bathroom look tired — and the slowest leak to notice. We cut the old bead out completely, prepare the substrate and reseal in a mould-resistant product, usually inside a single visit.
- Bathrooms, wet rooms and shower trays
- Kitchen worktops, splashbacks and sinks
- Window and door perimeter sealing
- Full removal and reseal of failed silicone

Contractors & developers
Sealant is the last trade on site and the first thing that gets inspected. We turn up with the right products, work to your programme and hand back joints that pass snagging — on office refurbishments, new builds, building refurbishments and schools.
- Expansion and movement joint sealing
- Cladding and curtain walling joints
- Floor line and wall junction mastic
- RAMS issued on request; CSCS carded
Services
Specialist sealant work,
from single joints to full packages
-
Commercial silicone sealant application
Sealant packages for office refurbishments, new builds, building refurbishments and schools, worked to the main contractor's programme.
-
Bathroom, wet room & kitchen sealing
Clean, watertight beads around baths, showers, trays and worktops — for homes in Chatham and for commercial washrooms alike.
-
Window & door silicone sealing
Perimeter sealing that keeps draughts and driving rain out of the building envelope, internally and externally.
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External silicone sealant
Weatherproof external joints specified for UK exposure and movement — brick, render, stone, cladding and copings.
-
Expansion joint sealing
Correctly sized and backed movement joints that flex with the structure instead of splitting through the middle.
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Floor line & wall joint mastic
Consistent mastic lines to floor and wall junctions across large commercial areas — corridors, plant rooms and open floor plates.
-
Sealant replacement — removal & reseal
Old, split or blackened sealant cut out completely, substrate prepped and treated, then resealed properly.
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Colour-matched silicone sealant
Beads matched to grout, frames, stone or cladding so the joint disappears into the finish instead of framing it.
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Swimming pool & leisure sealant
Chlorine-resistant products for pool surrounds, changing areas and wet leisure environments.
-
Anti-mould sealant
Mould-resistant products for bathrooms, wet rooms and washrooms that stay cleaner for longer.
-
Acoustic sealant
Noise-reduction sealing to partitions, junctions and service penetrations where sound transfer matters.
-
Cladding & curtain walling sealing
Facade and curtain walling joints sealed to line and detail at height, from the access provided.
How a job runs
From first photo
to a flawless finish
Five stages, the same on a single bath reseal and on a full curtain walling package. The visual stays put while the stages move — scroll through to see how your job would run.

- 01
Tell us what you need
Call or send the form with a short description of the work. Domestic or commercial — both get the same attention.

- 02
Free, fixed quote
Smaller jobs such as bath reseals can be quoted straight from photos. Larger and commercial jobs are quoted after a site visit.

- 03
Booked and prepared
We agree a date that fits your programme, issue RAMS if the site needs them, and confirm the products to be used.

- 04
Sealed and tooled
Old sealant cut out, substrate prepped, fresh bead applied to a straight line — and the area left tidy behind us.

- 05
Inspect and hand back
We walk the work with you or your site manager, check every joint reads straight and clean, and only call it finished when it would pass snagging.

Reputation
A family-run team
judged on the last job
We are a family-run business and every enquiry comes to the people who do the work. That is why reputation matters more to us than volume — and why our reviews live on Google, in public, rather than as quotes we have typed out ourselves.
Service areas
Based in Chatham,
working across Kent
and into London
Our workshop base is at The Historic Dockyard in Chatham, and we travel daily across Kent, into Bexley and up to the City of London. If your postcode is not listed, call and ask — we will tell you straight away.
View all areas covered- Sevenoaks
- Tunbridge Wells
- Maidstone
- Kings Hill
- Tenterden
- Whitstable
- Meopham
- Bexley
- City of London
Common questions
Answers before
you pick up the phone
Still unsure whether your job is worth a call-out? Send a photo — small jobs can be quoted from pictures alone, at no cost.
Do you work for homeowners as well as contractors?
Yes — domestic and commercial work sit side by side. A single bathroom reseal gets the same standard of preparation and finish as an expansion joint package on a new build.
How do you price work?
Every job is quoted individually and quotes are free. We do not publish 'from' prices, because joint length, access and product all change the figure. Smaller jobs can be quoted from photographs; larger and commercial jobs are quoted after an in-person site visit.
Which sealants do you use?
We work with established trade brands including Mapei, Illbruck, CT1 and Arbo, and select job-specific products where they are needed — mould-resistant sealant for bathrooms and wet rooms, chlorine-resistant sealant around pools, and acoustic sealant where sound transfer matters.
Are you insured and accredited for site work?
Yes. We carry £2 million public liability insurance and hold CITB and CSCS accreditation. Risk Assessment Method Statements can be issued on request for commercial jobs.
Can you match the sealant to our finish?
Yes. Colour-matched silicone is available so the bead reads as part of the grout, frame, stone or cladding rather than a line drawn across it.
How do we pay?
Larger jobs are invoiced. Smaller jobs are settled by bank transfer.
Get in touch today,
we’ll take care of the rest
Quotes are free, there is no obligation, and photos are usually enough for smaller work. Larger and commercial jobs are priced after a site visit at a time that suits your programme.










