Chesham washroom sealing
Sealing in commercial washrooms, showers, kitchens and wet areas in Chesham. CHAS accredited and fully insured, with a 12-month guarantee.
- Users noticing mouldy joints
- Failed sealant behind washroom basins
- Sealant lifting along a tray edge
Washroom sealing for businesses in Chesham
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Questions about Chesham
Would you work within a site like Amersham Hospital?
Yes, provided the work is planned with the site’s estates team. Each area is agreed with the ward or department and the estates team in advance.
Can work at a site such as Buckinghamshire New University fit around teaching?
Yes. Education sites usually want the work in vacations or in phases during term, and we plan to suit. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.
Is any job too small?
Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.
What if there’s asbestos in the old mastic?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.
Can you handle several sites?
Yes. A group of buildings can go on one quote, with one point of contact.
Is old silicone taken out first?
We always remove it. Fresh silicone can’t key to an old bead, so sealing over it soon peels.
Washroom sealing for commercial buildings in Chesham
Accessible WCs, showers and changing areas have their own pinch points: 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 they get particular attention. We work on kitchens and tea points, vanity units and basins and urinals and WCs, and the failures we’re asked to look at most are a new bead over an old one coming away and open joints at the base of cubicle panels. Searching for sealant specialists in Chesham? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
For schools in a town such as Chesham, term dates decide when the toilets and changing rooms can be resealed, while offices and care homes need phased work. Let us know your opening times and any access limits, and we’ll work to them.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Place
- Chesham (HP5)
- Wider area
- Buckinghamshire
- Cover
- A 12-month guarantee
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Aftercare for building managers
After handover, these steps help:
- Leave signs up until the cure time is over
- Note failing joints building by building
- Act on the first split you see at a shower tray
- Don’t leave trays and floors sitting wet
If a joint we sealed fails within 12 months, tell us and we will look at it. After that, a routine look catches failing joints early.
Leaks through tray and wet-floor joints can go unseen until a ceiling marks below. By then, other trades may be needed as well, so reseal when you first spot a split.
Busy facilities in and around Chesham
At about 27 miles from central London, Chesham is within reach of the capital. Office toilets in the commuter belt are in use from first arrivals to last departures, so we work a block of facilities at a time.
Office washrooms on sites such as Waterside Business Park, 0.7 miles to the south of Chesham, are in use all working day, so resealing is phased to keep some open. Halls of residence and teaching buildings at universities such as Buckinghamshire New University, 2.5 miles south-west of Chesham, are easiest to reseal during vacations. For a site such as Amersham Hospital, 3.4 miles south of Chesham, sanitary joints in clinical areas need sound, cleanable sealant and a careful method.
Chesham is about 7 miles south-west of Hemel Hempstead, in Buckinghamshire. If you are looking for washroom sealing in Chesham, we can help. We work across 308 places in Buckinghamshire, large and small. We also cover Reading, some 24 miles away.
Business premises anywhere in HP5 are within our area for washrooms and wet areas. Among the streets we cover are High Street, Station Road and Sunnyside Road. Main routes into Chesham include the A416 and B485, useful when we plan access and materials. If your building is just outside Chesham, we cover Pond Park (1 mile north), Chartridge (2 miles north-west), Hundridge (2 miles west), Asheridge (2 miles north-west) and Bellingdon (2 miles north-west). A short drive away, we cover Aylesbury (11 miles north-west), High Wycombe (8 miles south-west), Marlow (12 miles south-west), Amersham (3 miles south), Beaconsfield (7 miles south) and Chalfont St Peter (8 miles south). Chesham ranks among the main centres of Buckinghamshire, with offices, shops, schools and other public and commercial buildings.
Near you in Chesham
In Chesham, that means premises near Chiltern Hills Academy and The Jolly Sportsman pub, among other places. The nearest railway station is Amersham station, roughly 2.6 miles south. A little further out are Amersham Hospital (3.4 miles south) and Hawridge Court (2.2 miles north). Open spaces near Chesham include Sands Bank.
How the job changes by surface
IPS and cubicle panels
IPS panels and cubicle systems have joints at the wall, the floor and the worktop. Those joints protect the boards behind from water.
Kitchens and tea points
We plan kitchen sealing around when the kitchen is in use. Tell us your site hours and access windows and we will plan around them.
Why it’s worth doing now in Chesham
A tired-looking washroom doesn’t always need a refurbishment. If the finishes are in good order, replacing the sealant may do much of what’s needed while bigger works are planned. In a town like Chesham, a split, stained or mouldy joint is often the first thing visitors notice. Renewing it keeps the building looking cared for.
The price depends on the quantity of joints, what has to come out first and how the joints are reached. Call for a fixed quote when you’re ready.
What you get with us
- Our applicators hold CSCS cards
- Health and safety: CHAS accredited
- Fixed quotes based on photographs, drawings or a visit
- 12 months’ guarantee on every job
Take a look at how commercial sealant jobs are priced or our accreditations.
Building owners, agents and FMs in Chesham
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules.
Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.
From enquiry to sign-off
Site rules come first: sign-in, induction and whatever permit system the building uses. Once we’re cleared to begin, we take the joints in the sequence agreed with you. Most work in Chesham is one building at a time: a school, a unit, an office or a block. Your photos, drawings or a site visit come first, followed by a fixed quote.
- Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
- The phasing is agreed so there are always facilities open.
- The failed silicone is stripped and every face scraped clean of residue.
- Each joint is degreased and left dry, because silicone won’t bond to damp or soapy surfaces.
- We lay a sanitary silicone bead and tool it smooth so it is easy to clean.
- You get a reopening time for every room, with signage left up until then.
Before we start on site
- Let us know about inductions and permits
- Explain the parking and delivery arrangements
- Point out any areas we must not close
Ask for a quote
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, ring 01277 525 020 or email drawings and photos.
Related advice
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When it isn’t the sealant
Some faults sit outside our scope, and we say so rather than covering them up:
- Condensation from failed extract fans
- Water from plumbing, not from a joint
- Fittings that move too much to hold a bead
If you are not sure, just call the office on 01277 525 020 or email a schedule or drawings and we will give you a straight answer before you book.
Where we work in Chesham
- Showers, trays and wet room floors
- Urinals and WCs
- Accessible toilets and changing rooms
- Vanity units and basins
- IPS panels and cubicles
- Kitchens and tea points