Washroom Sealing contractors in Smithfield
Washroom sealing for Smithfield, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Open joints at the base of cubicle panels
- Sealant laid over old silicone and now peeling
- Gaps where vanity tops meet the wall
Washroom sealing for Smithfield sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Washroom sealing in Smithfield
We reseal washrooms and wet areas in offices, hotels, schools, universities, gyms, healthcare buildings and care homes, along with staff kitchens and tea points. The products and the method are chosen for how heavily each space is used. The enquiries we see most involve sealant lifting along a tray edge and complaints from staff, guests or users about tired washrooms, on accessible toilets and changing rooms, urinals and WCs and IPS panels and cubicles. A single leaking joint is often how a building in Smithfield first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
In Smithfield, as across London, commercial kitchens and washrooms need sealed joints that can be cleaned properly. We use sanitary and hygienic sealants, choosing food-safe products where food may touch the surface.
Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Place
- Smithfield (EC1V, EC1P, EC1R)
- Region
- City of London
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
Why it’s worth doing now in Smithfield
Washrooms shape how visitors judge a building. Visitors notice black sealant before they notice much else. Fresh sanitary silicone lifts a room with very little disruption. In a London building, a failed joint rarely affects only one party: water travels through shared structures, and a small leak becomes a dispute between occupiers. Putting it right early is less disruptive than dealing with the consequences.
The price depends on the quantity of joints, what has to come out first and the access. Call for a fixed quote once you have the details.
Why choose Mastic Doctor in Smithfield
- Our applicators hold CSCS cards
- A Constructionline member, so easy to vet
- Joints cleaned back to sound surfaces
- RAL and finish matching where the product range allows
Take a look at what affects the cost or our accreditations.
When to bring in a specialist
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.
Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Honest limits
Part of a good diagnosis is knowing where sealant stops. We’ll tell you if the real problem is one of these:
- Leaks through tanking or membranes below the finishes
- Vanity carcasses that have swollen
- Fittings that move too much to hold a bead
Not sure which it is? You can call the office on 01277 525 020 or send details through our quote form and we’ll tell you honestly.
What we seal
- Vanity units and basins
- Accessible toilets and changing rooms
- Urinals and WCs
- Kitchens and tea points
- IPS panels and cubicles
- Showers, trays and wet room floors
How the job changes by surface
Urinals and WC pans
Urinal backs, troughs and slab joints are resealed with sanitary silicone once the whole of the old bead has gone.
Showers and trays
Shower joints in hotels, gyms and workplaces work hard. Each bead is stripped, the joint dried and new sealant laid.
Washroom sealing around Smithfield: how the place shapes the job
Busy London buildings need some toilets open at all times, so we take one block of facilities out of use at a time. Smithfield has three care or nursing homes no more than 2 miles away. In care settings, wet rooms, assisted bathrooms and en suites rely on clean, sound sealant. Rooms are done a few at a time at times agreed with the home.
In a centre such as Brunswick Centre, 1 mile to the west of Smithfield, public washrooms are resealed a block of facilities at a time. On an industrial estate such as Grand Vitesse Industrial Estate, 1 mile to the south of Smithfield, staff toilets, showers and canteens are where sanitary sealant takes the most wear. Healthcare estates like St Bartholomew's Hospital (less than half a mile south-east of Smithfield) expect contractors to follow their permits and cleaning rules in every washroom.
Smithfield is about 1 mile north of London, in City of London. We cover commercial sites throughout Smithfield, for single jobs and planned programmes alike. Smithfield is one of 7 places we cover in City of London.
If you need washroom sealing in EC1V, EC1P and EC1R, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. For a building on Oat Lane, Shoe Lane and Long Lane or nearby, we can quote for washrooms and wet areas. You will find Smithfield on or near the A1 and A4. Close to Smithfield, our area also takes in Farringdon (1 mile north), Blackfriars (1 mile south), Holborn (1 mile west), Temple Bar (1 mile south-west) and Clerkenwell (1 mile north).
What’s near Smithfield
Locally, jobs take us to sites close to Oriole pub, London Nautical School and St Alban's Church of England Primary School. Nearby too are St Mary-at-Hill (1 mile south-east), Barts Health Archives (under half a mile south-east) and Postman's Park (less than half a mile south-east). Smithfield has its own railway station: Farringdon station. Nearby you will also find Finsbury Health Centre (0.5 miles north-west) and Postal Museum (under half a mile south-east). Not far away are St. James's Park Lake and Ludgate Hill.
Questions about Smithfield
Can you work around term dates at a campus such as Queen Mary's University West Smithfield Campus?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Will you work in a care home in Smithfield without moving residents out?
Yes, with the manager deciding the order and timing of rooms. Noise and disruption are kept to a minimum.
Do you work in Smithfield?
Yes. Smithfield is in our area and the rest of City of London. For a quote, speak to us on 01277 525 020 or send details through our quote form.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to.
Are you insured?
Yes. We’re fully insured, and the certificate can go with your quote.
Do you take on small jobs?
Small jobs are welcome alongside larger packages. Photos and a description are enough to start.
How soon can the area be used again?
The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.
Also near Smithfield
Also in Smithfield
Our process
Diagnose, treat, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. In Smithfield, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.
- Every room is surveyed and the failed joints listed.
- The fixed quote sets out the rooms, the products and the phasing.
- Old sealant is removed completely and the faces cleaned.
- Joints are degreased and dried.
- A sanitary silicone bead is laid and given a smooth tooled finish.
- Each area is handed back when ready.
Preparing the site
- Move anything stored against the joints
- Warn occupants and staff about the work
- Tell us which areas need to stay in use
Getting a fixed quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, call 01277 525 020 or email a schedule or drawings.
Advice
What sets the cost
Each job is priced on its own details. The things that drive the figure:
- The size and state of each joint
- Site requirements such as inductions and permits
- Any access equipment needed
- Whether the work must be split into stages
A quote for washrooms and wet areas depends on how many there are, their condition and the access, plus any specification you are working to. Ask us for a fixed quote.
What we need to price the job
For an accurate fixed quote, we need to understand the site. Useful things to include:
- Whether an asbestos survey exists
- Any specification or named product
- The type of building and who uses it
- Clear photos of the problem areas
Send us photos, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.