
Commercial washroom and wet-area sealing in Old Tree, Kent
Sealing in commercial washrooms, showers, kitchens and wet areas in Old Tree and across Kent. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Complaints from staff, guests or users about tired washrooms
- Discoloured joints around urinals and WC pans
- Panel joints letting water behind
Washroom sealing near Old Tree
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Washroom sealing in Old Tree
Accessible toilets, shower rooms and changing rooms have joints that work harder than most: wet-floor edges, tray perimeters, basin tops and the line where flooring meets the wall. An open joint there lets water track under flooring or behind wall panels, so we look at them closely. We work on showers, trays and wet room floors, vanity units and basins and accessible toilets and changing rooms, and the usual reasons a site gets in touch are black mould inside silicone joints that cleaning can’t shift and split or peeling sealant at shower trays. Facilities teams, main contractors and managing agents in Old Tree tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
In and around smaller places like Old Tree, washroom work is often in halls, pubs, primary schools, care homes and holiday accommodation. Sealant that has gone black with mould normally can’t be cleaned, so it is cut out and replaced.
We sign every job off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Location
- Old Tree (CT3)
- Region
- Kent
- Cover
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026

Doing it in-house
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Why it’s worth doing now in Old Tree
A tired washroom says a lot about how a building is run. Visitors notice black sealant before they notice much else. Resealing is a modest task with a very visible payoff. Converted and older buildings near places like Old Tree tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site rules also count.
Why choose Mastic Doctor in Old Tree
- Coloured sealants to suit the setting, where available
- Commercial sealant work since 2005
- CHAS accredited contractor
- Joints cleaned back to sound surfaces
See how commercial sealant jobs are priced and how we’re accredited.
Work for main contractors and building owners
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Old Tree can form part of a wider programme.
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.
Washroom sealing around Old Tree: points for this area
With the shore within about 3 miles, Old Tree counts as a coastal location, and coastal places often have hotels, guest houses and holiday accommodation with busy seasons. Showers and en suites in constant use are where silicone moulds and splits first, which is why off-season resealing makes sense. At about 56 miles from central London, Old Tree is within reach of the capital. Office washrooms on business parks see heavy weekday use, so we phase work to keep some facilities open.
Pupil toilets at schools like Hoath Primary School take heavy daily use, and the holidays give the window to reseal. Office toilets at parks like Chislet Business Park (1.1 miles south of Old Tree) take steady weekday use, and mouldy silicone soon shows. Healthcare washrooms on sites such as Queen Victoria Memorial Hospital (to the north-west of Old Tree) are resealed area by area, under the site’s own infection-control rules.
Old Tree is about 3 miles south-east of Herne Bay, in Kent. We send applicators to Old Tree for washrooms and wet areas. We work across 931 places in Kent, large and small. For work in that direction, see our London page.
Postcode districts covered here: CT3 for washrooms and wet areas. Close to Old Tree, our area also takes in Maypole (1 mile west), Hoath (1 mile south-west), Millbank (1 mile north-west), Knave's Ash (1 mile south-west) and Hollow Street (1 mile south-east). Further afield, our area takes in Canterbury (6 miles south-west), Margate (10 miles east), Dover (15 miles south), Ramsgate (10 miles east), Broadstairs (11 miles east) and Whitstable (6 miles west).
Near you in Old Tree
Recent enquiries here include premises near Curtis Wood and Spires Academy, among other places. Old Tree’s nearest station is Herne Bay station, about 2.9 miles north-west of the centre. Other landmarks nearby include St Martins Hospital (5.1 miles south-west). The countryside around Old Tree includes West Blean and Thornden Woods.
How a job runs
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Jobs in and around smaller places like Old Tree are normally planned as a single visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- We survey each room, count the joints and note anything behind them that needs another trade.
- The phasing is agreed so there are always facilities open.
- We strip out the old bead and clean off the residue left behind.
- We clean and dry every surface so the new sealant can grip.
- New sanitary silicone with anti-mould additives goes in and is tooled neat.
- Rooms reopen after the product’s cure time, and we move to the next.
What we need from you
- Make sure the joints can be reached
- Tell us your opening times and when work is allowed
- Tell us which areas need to stay in use
Quotes
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call 01277 525 020 or email the details over with what you know.
Related advice
Your questions answered
Is Old Tree off your patch?
Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.
Can you take on a job at a hospital such as Queen Victoria Memorial Hospital?
Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.
How do we ask for a quote?
There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photographs and a postcode.
Is it OK to put new silicone on top of the old?
The failed bead is always removed. New silicone won’t stick to the old, so sealing over it soon peels.
Do you guarantee washroom sealing?
Our workmanship has a 12-month guarantee backed by public liability insurance.
What happens if old sealant might contain asbestos?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.
Are you CHAS accredited and on Constructionline?
Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.
After the work
Keep the joints in good shape with a few simple steps:
- Keep extract fans working and vents clear
- Brief cleaning staff to treat joints gently
- Don’t leave an open joint at a basin or tray
- Inspect washroom sealant regularly
Mild cleaning products and non-abrasive cloths look after sanitary silicone best. Aggressive descalers, solvents and scouring pads shorten its life and give mould a start.
A split joint at a shower tray can leak for a long time before anyone sees it. By then, other trades may be needed as well so failed joints are worth acting on quickly.
Places near Old Tree
Also in Old Tree
What affects the price in Old Tree
A fixed quote reflects the actual work. It takes account of:
- Access and working height
- Location, for remote and island sites
- Joint width, depth and condition
- Removal of failed or old sealant
Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
Details that help us quote
A few photographs plus some basic facts will normally do. It helps to include:
- Access details, including height
- Approximate linear metres or a joint schedule
- Whether the building will be occupied during the work
- When you need the work done
Send us photos, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.