Washroom Sealing in Hendon
Washroom sealing in Hendon, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Stained or open joints at kitchen sinks and worktops
- Black mould inside silicone joints that cleaning can’t shift
- Open joints along basins and vanity units
Washroom sealing near Hendon
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Washroom sealing for commercial buildings in Hendon
From one staff toilet in Hendon to washrooms across a whole estate, we work the same way: details first, then a fixed quote, then the work, then the 12-month guarantee. Photos and a rough count of basins, urinals, showers and cubicles help us give a quick quote, or we can arrange a visit. If you are dealing with shower tray joints that have opened up and sealant stained black around basins and showers, we can help. For commercial sealant work in Hendon, you deal with one contact from quote to sign-off, whether it’s one building or several.
Restaurants, cafés and hotel kitchens across London have joints at worktops, sinks and wall cladding that need to stay smooth and cleanable. We use sanitary and hygienic sealants, choosing food-safe products where food may touch the surface.
Our workmanship is guaranteed for 12 months. If our installation lets you down in that time, we return and fix it.
- Place
- Hendon (NW4, NW9, NW2, NW11)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Work for main contractors and building owners
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.
We work for building owners and managing agents on everything from one building to a spread of sites around Hendon. Several sites can go on one quote, which keeps the paperwork simple.
Other services in Hendon
Quoting for work in Hendon
The price varies from site to site. It mainly depends on:
- Specialist products, such as fire-rated or hygienic sealants
- The site’s rules and procedures
- Access and working height
- Joint width, depth and condition
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote and we will explain how it’s made up.
Sending details for a quote
Whether it’s one area or a whole building, these details speed things up:
- Whether an asbestos survey exists
- Access details, including height
- A wide shot and a close-up of the area
- Specification clauses that apply
Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, ring 01277 525 020 or email the details over.
How a job runs
Before we leave any area, we remove the tape, clean down and inspect every joint with your site contact. If an area should be left alone while the sealant cures, we say how long and put signs out. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.
- We survey each room, count the joints and note anything behind them that needs another trade.
- The phasing is agreed so there are always facilities open.
- The failed silicone is stripped and every face scraped clean of residue.
- We clean and dry every surface so the new sealant can grip.
- A bead of anti-mould sanitary silicone goes in and is tooled to a smooth, cleanable profile.
- Each room is handed back once the sealant has had its cure time.
Before we start on site
- Tell us which areas need to stay in use
- Let us know about inductions and permits
- Warn occupants and staff about the work
Ask for a quote
To get a fixed quote, speak to us on 01277 525 020 or email us, telling us the site location and the nature of the job. You can also send details through our quote form.
Read more
Questions about Hendon
Can you cope with the access rules in a London building?
Yes. Inductions, permits and timed loading are routine for us in London. Send the building rules and access times with your enquiry.
Will you plan work around the academic year at somewhere like Middlesex University?
Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
Can one quote cover more than one building?
Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.
Can washrooms stay open while you work?
Just the room being resealed is out of use. Each room reopens after the sealant’s cure time, then we move on.
Are you CHAS accredited?
Yes. We’re CHAS accredited and a Constructionline member, which helps with supplier vetting.
Is it OK to put new silicone on top of the old?
The whole of the old bead is removed and the surfaces cleaned before resealing. That’s what makes the new joint last.
How many days will you need on site?
That varies with the scale of the job, though a typical visit normally takes a morning or so for a small washroom, longer where showers and changing rooms are included. For bigger or phased jobs, we’ll set out a timescale with the quote.
Leave it or put it right?
Bleaching black sealant may lighten it for a few days, but the mould is rooted in the silicone and comes back. Replacement deals with the cause in the joint and cleaners stop fighting a losing battle. In a London building, a failed joint rarely affects only one party. Dealing with it early is simpler for everyone.
We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote.
Why us?
- Fixed quotes based on photographs, drawings or a visit
- 12-month guarantee on workmanship
- Commercial sealant work since 2005
- Fully insured, including public liability cover
General trades versus a specialist
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Common problems we fix in Hendon
Warmth, moisture and soap residue are exactly what mould needs, and sealant joints trap all three. Even anti-mould grades can be colonised over time where extraction is poor.
Site and facilities staff are often the first to spot these:
- Stained sealant around pans and urinals
- Mould spotting along silicone joints
- Kitchen worktop joints that can’t be kept clean
- Users noticing mouldy joints
Halls of residence and teaching buildings at universities such as Middlesex University (to the north-west of Hendon) are easiest to reseal during vacations.
What your quote should include
- What the guarantee covers, and for how long
- Proof of insurance
- Their approach to joint depth and backing
- How they’ll work around occupants
Commercial washrooms in Hendon
Hendon has plenty of hotels close by, all within 2 miles. Hotel en suites take daily use, and tired silicone at trays and basins is one of the first things guests notice. Rooms are done in turn so most stay available. Busy London buildings need some toilets open at all times, which is why the work is split into phases agreed in advance.
For a store at a site such as Brent Cross Shopping Park (0.9 miles south of Hendon), the staff room and customer toilets can be resealed in quiet periods. For centre management at a site such as Brent Cross Shopping Centre, 0.5 miles south of Hendon, washroom work is planned around footfall.
Hendon is about 3 miles north-west of Hampstead, in Greater London. Anywhere in NW4, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. 764 places across Greater London fall within our area, including Hendon. Our London page has more on work in that area (8 miles or so).
We take on washrooms and wet areas across the NW4, NW9, NW2 and NW11 postcode area, whatever the building. We cover commercial and managed buildings on Church Road, Station Road and Sydney Grove and the roads nearby. You’ll find Hendon on or near the A5 and A41. If your building is just outside Hendon, we cover The Burroughs (1 mile north-west), Brent Cross (1 mile south), Staples Corner (1 mile south), West Hendon (1 mile west) and The Hyde (1 mile west). A short drive away, we cover London (8 miles south-east), City of Westminster (6 miles south-east), Marylebone (6 miles south-east), Kensington (6 miles south), St Pancras (6 miles south-east) and Shoreditch (7 miles south-east).
Around Hendon
In Hendon, that means premises near Hasmonean Primary School, The White Bear pub and Kisharon College. The nearest railway station is Hendon station, roughly 0.7 miles south-west of the centre. Well-known places in the area include Brent Cross Shopping Centre (0.5 miles south) and St Andrew's Hospital (1.6 miles south). Not far away are Darland's Lake and Parliament Hill.