Greater London · England
Commercial & hotel sealant in Clerkenwell, Greater London
Sealant work for offices, hotels, washrooms and commercial buildings for homeowners, landlords and businesses in Clerkenwell. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mouldy washroom sealant that staff and guests notice
- Failed floor-level joints in accessible wet rooms
- Silicone laid over old silicone by a previous contractor
How we quote for commercial sealant
We don’t publish a price list, because jobs vary so much. What we look at:
- The type of sealant required
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- How many rooms, windows or areas are involved
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll send you a clear quote for the lot.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- The rough size of the job
- Where the property is
- A few pictures by email, if you can
- What’s wrong with the joints now
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
How we handle commercial sealant in Clerkenwell
Student halls, care homes and supported housing have many similar bathrooms. A room-by-room programme keeps the job organised, working around residents and staff routines. Common call-outs are for failed floor-level joints in accessible wet rooms and whole floors of tired en suites, on office washrooms & kitchens, welfare facilities and hotel bathrooms.
Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Out-of-hours working can be arranged where a building in Clerkenwell can’t close.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Place
- Clerkenwell (N1, EC1V, WC1X)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens if it’s left?
First impressions are often made in the washroom. Black sealant makes a clean room look dirty, and cleaning rarely puts it right. New sealant does. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Clerkenwell, the repair is bigger than a sealant job.
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, phone 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Why book with us
- White, clear, grey or another colour, product permitting
- A sealant colour to suit the surroundings
- Fully insured
- 20+ years of sealant experience
Read our cost guide or what customers say.
Looking after it afterwards
So the new joints stay in good condition:
- Keep extractor fans working and serviced
- Include the silicone on your room checklists
- Ask cleaners to go gently on the silicone
- Get split or lifting joints looked at early
Make it easy for staff to flag a failing joint. A small gap caught quickly is a short fix.
Mould in shared washrooms gets noticed and talked about. The longer it’s left, the deeper it grows into the silicone, and only replacement fixes it.
Commercial sealant in Clerkenwell: local notes
Many London buildings have tight access and loading restrictions, and out-of-hours working is possible to arrange. London’s water is hard, which leaves limescale on sealant, grout and taps.
Community buildings like St James's Church are part of the picture too: its kitchen and washroom sealant needs looking after like anywhere else. As a London address, Clerkenwell can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Clerkenwell is about 2 miles north of London, in Greater London. Across the N1 area, we can carry out commercial sealant at your property. Across Greater London, we cover 764 places, Clerkenwell among them.
Our applicators cover all of N1, EC1V and WC1X for commercial sealant and the streets around it. Local streets include Long Lane, City Road and Noel Road. Clerkenwell sits on or near the A1 and A5201, so getting to you is simple. Nearby, we also carry out commercial sealant in Farringdon (1 mile south), Angel (1 mile north), Smithfield (1 mile south), Holborn (1 mile south-west) and St Pancras (1 mile west). Within a short drive, we also cover Kensington (5 miles south-west), Walthamstow (5 miles north-east), Hampstead (4 miles north-west), Ruislip (14 miles west), Brompton (3 miles south-west) and Stockwell (4 miles south).
Local landmarks in Clerkenwell
In Clerkenwell, that means homes and buildings near Barts Health Archives, The Sekforde pub and Elizabeth Garrett Anderson School. Nearby too are Tech City College (under half a mile north-east) and King Square Gardens (within half a mile north-east). Clerkenwell has its own railway station: Farringdon station. Nearby you will also find Brunswick Centre (0.9 miles west) and Montfichet's Tower (0.9 miles south). The countryside around Clerkenwell includes St. James's Park Lake and Ludgate Hill.
How the job changes by surface
Office washrooms & kitchens
Kitchen and tea point joints are degreased and resealed, with a food-safe product beside sinks where needed.
Rental portfolios
Between tenancies is a good time to reseal, ready for the next tenant.
What we’re called out for in Clerkenwell
Larger buildings move, and stud walls move more than solid ones. The sealant between walls, trays and fittings absorbs that strain.
The most common problems we see are:
- Tired sealant ahead of a health and safety audit
- Mouldy bathrooms flagged at a tenancy check
- Shower leaks reaching the floor below
- Split sealant where wet room floors meet walls
If you let a flat or house near Farringdon station, we can quote for one property or a whole portfolio of rentals.
What to look for in a quote
- What happens if the job turns out different
- How much experience the applicator has
- Is VAT in the price?
- How the joint is cleaned and prepared
Clerkenwell: your questions answered
Do you work in hotels near Clerkenwell?
Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
I let a flat near Farringdon station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can phone 0345 464 0079 or email us with the details for a clear quote.
Is out-of-hours working possible?
It can be arranged for many jobs. We will confirm the working hours with your quote.
How long does the job take?
As a guide, most jobs take a few hours for a single washroom, longer for a whole building. Bigger jobs take longer, and we’ll tell you how long to expect.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Is the work guaranteed?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply ring 0345 464 0079 or send us an email.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.
The process
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes as long as the scope needs, from one welfare room to a full building. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Clerkenwell. It helps if you can point us to a visitor permit or a bay close to the door.
- We start with a site walk to agree the rooms and the timing.
- Room by room, we protect the area and remove all the old sealant.
- We clean the joints, treat any mould and let them dry.
- We lay the right sealant for each area, with anti-fungal silicone in wet rooms.
- Rooms are checked and returned with a cure time so staff know when to use them.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
- Let us know about stairs, lifts or work at height
Get a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job.
Advice
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.