
Washroom Sealing contractors in Chertsey
Sealing in commercial washrooms, showers, kitchens and wet areas across Chertsey, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Black mould inside silicone joints that cleaning can’t shift
- Kitchen worktop joints that can’t be kept clean
- Stained sealant around pans and urinals
Washroom sealing near Chertsey
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
About our washroom sealing in Chertsey
Closing all the facilities in a building isn’t an option. Work is phased by room or by section, so there are always facilities in use. Give us your site hours and access windows and the phasing is planned around them. If you have washrooms that look worn because of the sealant and failed sealant behind washroom basins, we can help, on IPS panels and cubicles, kitchens and tea points and urinals and WCs alike. Looking for mastic applicators who cover Chertsey? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
Around Chertsey, washroom work usually comes one building at a time. Photos of each area help us plan the visit and bring the right sealant.
Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Location
- Chertsey (KT16, KT15)
- Wider area
- Surrey
- Guarantee
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026

What sets the cost
Sealant work doesn’t have a standard rate, since sites vary so much. What we look at:
- Backing rod, priming and other preparation
- Which sealant the job calls for
- Any access equipment needed
- Site requirements such as inductions and permits
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
What to include in your enquiry
Whether it’s one area or a whole building, the same details help:
- The product your specification calls for
- Clear photos of the problem areas
- Whether the building will be occupied during the work
- The asbestos register, for older buildings
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
Common questions from Chertsey clients
Is Chertsey off your patch?
Not at all. Chertsey is within our area. 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 you plan work around the academic year at somewhere like Royal Holloway University?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Let us know which documents your site asks for, and we will confirm them alongside the quote.
Are you CHAS accredited?
Yes. We’re CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.
How long does a typical visit take?
We plan the time on site around your programme and access. You’ll have an expected duration with the quote.
How do I request 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 photos and a postcode.
What sealant do you use in washrooms?
Each area gets the grade that suits it. Most washroom joints take sanitary silicone while kitchens may need a food-safe grade.
Can you clean the mould off instead of resealing?
Cleaning may lighten it, but the mould returns. New anti-mould sanitary silicone is the treatment and point out if ventilation is part of the problem.
Diagnose, treat, sign off
Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself typically takes half a day to a day per washroom, depending on the number of fittings, and our waste is bagged and taken away as we go. Several jobs near Chertsey can be grouped on one trip. Tell us your site hours and we will plan around them.
- Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
- A phasing plan keeps part of the building’s facilities in use at all times.
- Failed silicone is removed completely and the surfaces cleaned of every trace.
- 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.
Before we start on site
- Send your site hours and access windows
- Arrange parking or a loading space
- Tell us what induction or permit system the site runs
Quotes
Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, call 01277 525 020 or email us.
Read more
Wet areas in Chertsey’s workplaces
There are several hotels within about 2 miles of Chertsey. Each has en suites, back-of-house toilets and kitchens with sealant that moulds and splits. We work a handful of rooms at a time, so the hotel keeps letting the rest. Chertsey is about 19 miles from central London, in a commuter belt where offices and business parks are common. Office toilets in the commuter belt are in use from first arrivals to last departures, and resealing in phases keeps facilities available.
Hotels such as King's Head Hotel, under half a mile to the north of Chertsey, have en suite bathrooms where tired silicone at the bath, tray and basin is replaced room by room. Colleges such as Brooklands Technical College - Weybridge Campus, 2.5 miles to the south-east of Chertsey, have toilets, changing rooms and catering kitchens that can be resealed around term dates. Office washrooms on sites such as Hanworth Lane Business Park (to the south of Chertsey) are in use all working day, so resealing is phased to keep some open.
Chertsey is about 6 miles north-east of Woking, in Surrey. We cover Chertsey and the rest of Surrey, with the same fixed quotes and 12-month guarantee as everywhere else. Chertsey is one of 379 places in Surrey on our list. Our London page has more on work in that area (19 miles or so).
We cover the KT16 and KT15 postcode districts. We cover commercial and managed buildings on Station Road, Charles Street and King Street. With the A317 and A320 nearby, Chertsey is easy to get to with materials and equipment. We also cover Lyne (1 mile west), Row Town (2 miles south), Ottershaw (2 miles south-west), Trumps Green (3 miles west) and Stonehill (3 miles south-west). Further afield, our area takes in Guildford (10 miles south), Woking (6 miles south-west), Camberley (10 miles west), Epsom (11 miles east), Ewell (11 miles east) and Egham (3 miles north-west).
Near you in Chertsey
Around Chertsey, our work takes us to commercial buildings near Chertsey High School, Sir William Perkins's School and Woburn Park, among other places. There’s a railway station in Chertsey itself: Chertsey station. A little further out are Runnymede Hospital (1 mile south-west) and Spelthorne Museum (3.2 miles north). The countryside around Chertsey includes St Ann's Hill and Gracious Pond.
Doing it in-house
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Honest limits
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Water escaping beneath the floor rather than through a joint
- Vanity carcasses that have swollen
- A dripping waste or valve behind a panel
If in doubt, speak to us on 01277 525 020 or email the details over and we’ll say what we think.
Surfaces we seal
- Accessible toilets and changing rooms
- Urinals and WCs
- Vanity units and basins
- Showers, trays and wet room floors
- Kitchens and tea points
- IPS panels and cubicles
More services for Chertsey
Keeping the joints sound
For the best life from the joints:
- Keep washrooms out of use until we say the sealant has cured
- Add sealant joints to planned maintenance checks
- Clean sealant with gentle products and a soft cloth
- Make sure washroom ventilation is running
Ask your cleaning team to use gentle products and soft cloths on sealant. Aggressive descalers, solvents and scouring pads shorten its life and give mould a start.
In food areas, cleanability is something environmental health officers look at. Resealing sinks, worktops and splashbacks before an inspection is a simple step.
Surface by surface
Urinals and WC pans
Urinal backs, troughs and slab joints are resealed with sanitary silicone after the old bead and residue are removed.
IPS and cubicle panels
A panel that has already swollen won’t be fixed by sealant and we’ll point out any we see.