Commercial washroom and wet-area sealing in Cobham, Surrey
Sealing in commercial washrooms, showers, kitchens and wet areas in Cobham. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Failed sealant behind washroom basins
- Black mould inside silicone joints that cleaning can’t shift
- A new bead over an old one coming away
Washroom sealing for businesses in Cobham
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How we handle washroom sealing in Cobham
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 once mould grows into it, it can’t be scrubbed out. The fix is to remove it completely and reseal with sanitary silicone containing anti-mould additives. Site teams most often ask us about stained sealant around pans and urinals and shower tray joints that have opened up, across showers, trays and wet room floors, vanity units and basins and accessible toilets and changing rooms. Whether you call it commercial sealant work, mastic application or joint sealing, in Cobham it comes down to the same thing: the right product in a properly prepared joint.
In and around places like Cobham, hospitality kitchens and toilets see heavy use in busy spells. Sealed joints at sinks, worktops and splashbacks help keep the kitchen cleanable, using a food-safe product near food preparation.
We stand by our work with a 12-month guarantee. That covers our preparation and application, and we come back if anything isn’t right.
- Place
- Cobham (KT11)
- Region
- Surrey
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
Busy facilities in and around Cobham
Central London is about 17 miles from Cobham, within the office belt around the capital. Office washrooms on business parks see heavy weekday use, so we phase work to keep some facilities open. There are several hotels within about 2 miles of Cobham. Behind every hotel door there’s a bathroom whose sealant will need renewing sooner or later. We work a handful of rooms at a time, so the hotel keeps letting the rest.
If you manage an office at a site such as Hersham Place Technology Park, which lies north of Cobham, the washrooms and tea points can be done a floor at a time. At a hospital like Cobham Community Hospital and Health Centre (0.5 miles west of Cobham), patient and staff washrooms are best done in short phases agreed with the ward.
Cobham is about 6 miles west of Epsom, in Surrey. Cobham sits inside our coverage and the rest of Surrey, with the same fixed quotes and 12-month guarantee as everywhere else. We work across 379 places in Surrey, large and small. Sites around London have their own page, roughly 17 miles from Cobham.
Anyone looking for washroom sealing in KT11 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on High Street, Summerhays and Fairfield Park are within our area. Nearby places we also cover include Stoke D'Abernon (1 mile south-east), Oxshott (2 miles east), West End (2 miles north), Pachesham Park (3 miles east) and Esher (3 miles north-east). Nearby towns on our patch include Guildford (10 miles south-west), Woking (8 miles west), Camberley (14 miles west), Epsom (6 miles east), Horley (15 miles south-east) and Redhill (12 miles south-east).
What’s near Cobham
Recent enquiries here include premises near The Running Mare pub and West End Common. The nearest railway station is Cobham & Stoke Dabernon station, roughly 1.1 miles south of the centre. A little further out are Elmbridge Museum (3 miles north-east) and Chessington Castle Hill (4.9 miles east). The countryside around Cobham includes Jubilee Wood and Claremont Lake.
Cobham: questions and answers
Is Cobham too small for you to travel to?
No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
Will our hotel in Cobham need to close for the work?
Almost never. The work is phased so most rooms stay available. Tell us your quiet periods and access windows and we’ll plan around them.
How long will the new sealant last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.
Will you come and look before quoting?
Many jobs can be quoted from photos, drawings or a joint schedule. Where they aren’t, we arrange a site visit.
How long does a job like this take?
That varies with the scale of the job, though a typical visit normally takes between a morning and a week or so, set by the number of rooms and the phasing you need. For bigger or phased jobs, we will set out a timescale with the quote.
Can washrooms stay open while you work?
Only the area we are working in is closed. Rooms go back into use once the sealant has cured, then we move on.
Do you work to architects’ specifications?
Yes. We follow the specification, along with the manufacturer’s installation guidance.
What we are called out for in Cobham
Decorators’ caulk and general sealants sometimes end up where sanitary silicone belongs. They aren’t made for constant wetting, and they stain, crack or wash out.
It’s worth sending us details if you spot any of the following:
- A new bead over an old one coming away
- Sealant stained black around basins and showers
- Split or peeling sealant at shower trays
- Open joints at the base of cubicle panels
Pupil toilets at schools like St Andrew's CofE Primary School take heavy daily use, and the holidays give the window to reseal.
Comparing quotes
- Their public liability cover
- Is the sealant right for the movement and the substrate?
- How they’ll work around occupants
- Are they CHAS accredited or on Constructionline?
Keeping the joints sound
A few simple habits keep the new joints working:
- Keep extract fans working and vents clear
- Add sealant joints to planned maintenance checks
- Keep a record of which washrooms need attention
- Mention any site permits or estates rules at quote stage
Each room goes back into use only when the sealant has cured enough. We will tell you when the wet areas can be used and signage stays in place until that time.
Mouldy sealant only gets harder to ignore, and complaints follow. Replacing it early keeps the job to a reseal.
Diagnose, treat, sign off
Working in a building that stays open takes some planning. We sign and contain the area we are in, with routes through the building left open and work section by section so the rest of the building stays in use. What matters most for a job in Cobham is a clear list of what needs doing. A fixed quote follows.
- We start by inspecting the fittings and joints and flagging problems sealant can’t solve.
- A phasing plan keeps part of the building’s facilities in use at all times.
- We strip out the old bead and clean off the residue left behind.
- 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.
Preparing the site
- Tell us your opening times and when work is allowed
- Make sure the joints can be reached
- Have the specification and drawings to hand
Get a fixed quote
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 us with what you know.
Advice
What sealant work can’t fix
Honesty saves time and money. New sealant won’t cure:
- Swollen or delaminated boards behind panels or vanity tops
- Failed tanking beneath a wet-room floor or behind tiles
- Mould caused by poor ventilation, which will return until the extract is fixed
If in doubt, phone 01277 525 020 or send details through our quote form and we’ll say what we think.
Surfaces we seal
- Kitchens and tea points
- IPS panels and cubicles
- Urinals and WCs
- Vanity units and basins
- Accessible toilets and changing rooms
- Showers, trays and wet room floors
Nearby places to Cobham
Other services in Cobham
Should maintenance staff do it?
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Why deal with it now?
A failed joint behind a basin or along a shower tray lets water run where it shouldn’t. In a commercial building that can mean damaged boards, stained ceilings on the floor below and odours which costs more to fix than a reseal. Sealant hardens, cracks and loses grip with age, UV and movement. Renewing it in good time keeps the building weathertight.
Pricing washrooms and wet areas depends on how many there are, their condition and the access. Call for a quote.
Why us?
- Sealing commercial buildings since 2005
- Failed material removed, not covered up
- Fully insured, including public liability cover
- Colours chosen to suit frames, cladding or finishes where possible
Take a look at how commercial sealant jobs are priced and our accreditations.