
Exton washroom sealing
Our CSCS-carded applicators take on sealing in commercial washrooms, showers, kitchens and wet areas in Exton. Send photos or drawings for a fixed quote.
- Black mould inside silicone joints that cleaning can’t shift
- Resealing that didn’t last because the old bead stayed
- Stained sealant around pans and urinals
Need washroom sealing in Exton?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Washroom sealing in Exton
Since 2005 we have resealed commercial washrooms for facilities teams, contractors and building owners. We are CHAS accredited and a Constructionline member, with CSCS-carded applicators. There is public liability insurance behind every job. Our workmanship is guaranteed for 12 months. We work on kitchens and tea points, showers, trays and wet room floors and vanity units and basins, and what we are called in for most is split or peeling sealant at shower trays and kitchen worktop joints that can’t be kept clean. Facilities teams, main contractors and managing agents in Exton tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
Farm shops, cafés and venues in converted rural buildings around places like Exton have busy toilets and kitchens. We plan the work around bookings and opening times.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Where
- Exton (SO32)
- Wider area
- Hampshire
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026

Cost factors for washrooms and wet areas
Each job is priced on its own details. The main factors are:
- How much there is to seal
- Site requirements such as inductions and permits
- Location, for remote and island sites
- How much existing material needs removing
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
Before you send an enquiry
To price the job accurately, we need a clear picture of the site. Useful things to include:
- When you need the work done
- Approximate linear metres or a joint schedule
- Whether the building will be occupied during the work
- Any specification or named product
The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or give us a call on 01277 525 020 or email the details over if you’d rather talk the job through.
Why deal with it now?
Sealing on top of old silicone saves nothing. Silicone won’t grip silicone, so it lifts and holds moisture underneath. Full removal and proper cleaning is what makes the new joint last. Halls, stores and units around places like Exton may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote and we’ll explain how it’s made up.
Why choose Mastic Doctor in Exton
- CHAS accredited
- Coloured sealants to suit the setting, where available
- One phone line for London, the South East and Scotland
- Commercial sealant work since 2005
See how commercial sealant jobs are priced or how we’re accredited.
FAQs: Exton
Do we have to close all our washrooms in Exton for resealing?
Not all at once. We take one block of facilities at a time. Each area is handed back once the sealant has cured enough to use.
Is Exton too small for you to travel to?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
How do you choose the sealant?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
What site paperwork can you supply?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
Is there a guarantee on the work?
There is a 12-month guarantee on our workmanship, and we carry public liability insurance.
How long does a typical visit take?
We plan the time on site around your programme and access. We will give you an estimate of time on site when we quote.
Do you need to remove the old sealant?
The failed bead is always removed. Fresh silicone can’t key to an old bead so a bead over the top fails quickly.
Sanitary sealant for Exton buildings
At about 57 miles from central London, Exton is within reach of the capital. Washrooms in commuter-belt offices take constant weekday traffic, and resealing in phases keeps facilities available.
Pupil toilets at schools like Meonstoke Church of England Infant School take heavy daily use, and the holidays give the window to reseal.
Exton is about 7 miles north-west of Horndean, in Hampshire. Our applicators travel to Exton for work on washrooms and wet areas. We work across 723 places in Hampshire, from busy centres to rural villages. Our Southampton page has more on work in that area, about 12 miles away.
Business premises anywhere in SO32 are within our area for washrooms and wet areas. Buildings on Shoe Lane, Church Lane and Beacon Hill Lane are within our area. Sites close to Exton are covered too, including Corhampton (1 mile south), Meonstoke (1 mile south), Brockbridge (1 mile south), Droxford (2 miles south) and Soberton (3 miles south). Bigger towns within reach include Winchester (10 miles north-west), Gosport (12 miles south), Havant (10 miles south-east), Eastleigh (10 miles west), Fareham (10 miles south) and Horndean (7 miles south-east).
Local landmarks in Exton
In Exton, that means premises near The Shoe Inn, among other places. Open spaces near Exton include St Clair's Meadow and Beacon Hill.
Also in Exton
On site: what to expect
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then reopened once the sealant allows before we move to the next. For work around Exton, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.
- We inspect each washroom and record the joints to be resealed.
- You get a fixed quote with the phasing plan.
- The whole of the old bead is removed.
- Joints are degreased and dried.
- New anti-mould sealant goes in and is tooled neat.
- Each area is handed back when ready.
What we need from you
- Tell staff and tenants when we’ll be in
- Tell us which areas need to stay in use
- Flag any permit to work we will need
Quotes
For a fixed quote, call 01277 525 020 or use the quote form with the site address and an outline of the work. You can also send details through our quote form.
Related advice
General trades versus a specialist
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
When to call us in Exton
Mop buckets, trolleys and knocks from users damage joints near the floor, especially at floor edges and around urinals and WC pans.
It’s worth sending us details if you spot any of the following:
- Complaints from staff, guests or users about tired washrooms
- Sealant stained black around basins and showers
- Kitchen worktop joints that can’t be kept clean
- Shower tray joints that have opened up
Halls linked to places like Church of St Peter and St Paul host groups all week, which is hard on kitchen and toilet sealant.
Comparing quotes
- Health and safety accreditation such as CHAS
- Which product they’ll use, and why it suits the joint
- How the existing material will be dealt with
- Proof of insurance
Keeping the joints sound
After handover, these steps help:
- Keep extract fans working and vents clear
- Clear standing water from shower floors where possible
- Report split joints at trays and basins early
- Inspect washroom sealant regularly
Add washroom sealant to routine inspections. Look for black spotting, cracks, peeling edges and gaps at the busiest fittings and log what you find.
Mould in a joint spreads along the bead and into nearby grout and users notice. Dealing with it while it’s just the sealant keeps it simple.