
Washroom Sealing contractors in Chartridge
Sealing in commercial washrooms, showers, kitchens and wet areas in Chartridge and across Buckinghamshire. CHAS accredited and fully insured, with a 12-month guarantee.
- Open joints at the base of cubicle panels
- Stained or open joints at kitchen sinks and worktops
- A new bead over an old one coming away
Washroom sealing for Chartridge sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Washroom sealing in Chartridge, done properly
In a commercial washroom, sealant is normally the first thing to wear out. Around basins, urinals, cubicles, IPS panels and shower trays it takes water, soap, cleaning chemicals and knocks every day and mould that roots into it can’t be cleaned away. We strip it out and lay new anti-mould sanitary silicone. If you are dealing with resealing that didn’t last because the old bead stayed and panel joints letting water behind, we can help. Looking for mastic applicators who cover Chartridge? We’ve been sealing commercial buildings since 2005.
In and around smaller places like Chartridge, 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.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

- Where
- Chartridge (HP5)
- Region
- Buckinghamshire
- Cover
- A 12-month guarantee
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
On site: what to expect
Before we leave any area, we remove the tape, clean down and inspect every joint with your site contact. Where the sealant needs time to cure before use, we tell you and sign the area. If others near Chartridge need work, visits can be combined. You’ll have a fixed quote before work starts.
- We agree which washrooms close and when.
- Leaks, loose panels or damp are pointed out first.
- Old sealant is stripped and the faces prepared.
- The right sanitary or food-safe sealant is applied.
- We give you a reopening time for every room.
Before we start on site
- Tell us which areas need to stay in use
- Send asbestos survey details if the building is pre-2000
- Warn occupants and staff about the work
Ask for a quote
Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.
Related advice
Chartridge: questions and answers
Is Chartridge off your patch?
Not at all. Chartridge is within our area. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
Can you work on a hospital site such as Chiltern Hospital?
Yes. We work in healthcare settings as well as offices and schools. We follow the site’s permits, sign-in and infection-control procedures in every area.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it.
What will the job cost?
Every job gets its own fixed quote. For yours, call the office on 01277 525 020 or email us.
What if there’s asbestos in the old mastic?
Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.
How long does a job like this take?
It depends on the scope, though a typical visit typically takes half a day to a day per washroom, depending on the number of fittings. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Do you take on small jobs?
Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.
Washroom sealing in Chartridge: the local picture
Central London is about 28 miles from Chartridge. Office washrooms on business parks see heavy weekday use, so we work a block of facilities at a time.
Student showers at universities like Buckinghamshire New University, 3 miles south of Chartridge, see more use than most, and their silicone shows it. Office washrooms on sites such as Waterside Business Park (2.3 miles south-east of Chartridge) are in use all working day, so resealing is phased to keep some open.
Chartridge is about 2 miles north-west of Chesham, in Buckinghamshire. Across the HP5 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Chartridge is one of 308 places in Buckinghamshire on our list. We also cover Reading, around 24 miles from Chartridge.
Work on washrooms and wet areas is covered throughout HP5, for business premises of every kind. We cover commercial and managed buildings on Chartridge Grange Drive and Cogdells Lane and the roads nearby. Sites close to Chartridge are covered too, including Asheridge (1 mile north-east), Bellingdon (1 mile north), Hundridge (1 mile south), Ballinger Common (1 mile west) and Pond Park (1 mile east). Bigger towns within reach include Aylesbury (10 miles north-west), High Wycombe (8 miles south-west), Marlow (12 miles south-west), Amersham (4 miles south-east), Beaconsfield (8 miles south) and Chalfont St Peter (9 miles south-east).
What’s near Chartridge
Locally, jobs take us to sites close to Chiltern Hills Academy and The Bell pub and the streets around them. For rail, the closest station is Great Missenden station, about 3.1 miles south-west of the centre. A little further out are Roald Dahl Museum and Story Centre (3 miles south-west) and Hawridge Court (1.5 miles north-east). The countryside around Chartridge includes Pavis Wood and Sands Bank.
How the job changes by surface
Showers and trays
Shower joints in hotels, gyms and workplaces work hard. Each bead is stripped, the joint dried and new sealant laid.
Urinals and WC pans
Joints around urinals and WC pans take splashes, cleaning chemicals and knocks. Once they discolour or split, they hold odours and make the room look neglected.
When to call us in Chartridge
We often find acrylic caulk or general-purpose sealant in joints that should have sanitary silicone. They aren’t made for constant wetting and they discolour and fail early.
Site and facilities staff are often the first to spot these:
- Sealant laid over old silicone and now peeling
- Urinal joints that look unhygienic
- Black mould inside silicone joints that cleaning can’t shift
- Stained or open joints at kitchen sinks and worktops
Pupil toilets at schools like Chartridge Combined School take heavy daily use, and the holidays give the window to reseal.
Before you book anyone
- Whether their applicators hold CSCS cards
- Health and safety accreditation such as CHAS
- The named product and why it was chosen
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
Keeping the joints sound
Once the work is signed off, these steps help:
- Clear standing water from shower floors where possible
- Act on the first split you see at a shower tray
- Report faulty extraction promptly
- Clean sealant with gentle products and a soft cloth
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.
Leaks through tray and wet-floor joints can go unseen until a ceiling marks below. At that stage, boards or ceilings may need repair so failed joints are worth acting on quickly.
Nearby places to Chartridge
What else we do in Chartridge
Site staff or a sealant specialist?
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
Cost factors for washrooms and wet areas
There’s no standard rate for sealant work, since sites vary so much. What we look at:
- Whether the work must be split into stages
- Which sealant the job calls for
- Backing rod, priming and other preparation
- Induction, permit and paperwork requirements
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
What we need to price the job
For an accurate fixed quote, we need a clear picture of the site. Useful things to include:
- Specification clauses that apply
- Approximate linear metres or a joint schedule
- A wide shot and a close-up of the area
- How the joints are reached, and at what height
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photographs and a description will do.