
Washroom Sealing in Isle of Dogs
Sealing in commercial washrooms, showers, kitchens and wet areas in Isle of Dogs. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Failed sealant behind washroom basins
- A new bead over an old one coming away
- Mould spotting along silicone joints
Washroom sealing for Isle of Dogs sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Washroom sealing in Isle of Dogs
Since 2005 we have resealed commercial washrooms for facilities teams, contractors and building owners. Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We are fully insured. Our workmanship is guaranteed for 12 months. If you have split or peeling sealant at shower trays and kitchen worktop joints that can’t be kept clean, we can help, on urinals and WCs, showers, trays and wet room floors and IPS panels and cubicles alike. For commercial sealant work in Isle of Dogs, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
Many London buildings can’t close every toilet at once. We work through washrooms floor by floor or core by core, at times agreed with you.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Isle of Dogs (E14, SE8, SE10)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026

Busy facilities in and around Isle of Dogs
London offices and hotels normally can’t close all their washrooms at once, which is why the work is split into phases agreed in advance. There are three care or nursing homes within about 2 miles of Isle of Dogs. Assisted bathrooms and wet rooms in care settings need sanitary sealant that stays cleanable. Work is agreed with the manager, around residents’ routines.
Healthcare estates like Blackheath Hospital, 2.1 miles south-east of Isle of Dogs, expect contractors to follow their permits and cleaning rules in every washroom. At a university such as University of Greenwich - Greenwich Campus (0.7 miles south-east of Isle of Dogs), summer is the usual window for resealing residence bathrooms.
Isle of Dogs is about 1 mile north-west of Greenwich, in Greater London. We send applicators to Isle of Dogs for washrooms and wet areas, handled exactly as we handle every other area. Our Greater London coverage takes in 764 places, large and small.
If you need washroom sealing in E14, SE8 and SE10, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Among the streets we cover are Creek Road, Wynan Road and Undine Road, and sites on any of them can send details for a fixed quote. Just outside Isle of Dogs, we also work in North Greenwich (1 mile north-west), Millwall (1 mile west), Cubitt Town (1 mile north-east), Deptford (1 mile south-west) and Greenwich (1 mile south-east). Further afield, our area takes in London (3 miles west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (5 miles north-west) and Shoreditch (4 miles north-west).
What’s near Isle of Dogs
Around Isle of Dogs, our work takes us to commercial buildings near The Ferry House Public House, Laban Centre and St. Paul's and the streets around them. Other local landmarks include Mudchute Park and Farm (less than half a mile north-east) and Canary Wharf College 3 (less than half a mile north). Isle of Dogs’s nearest station is Greenwich station, roughly 0.7 miles south of the centre. Nearby you’ll also find Greenwich Castle (1 mile south-east) and Surrey Quays Shopping Centre (1.3 miles west). The countryside around Isle of Dogs includes Tower Hill and Sue Godfrey Nature Park.
After the work
To get the most from the new sealant:
- Don’t leave trays and floors sitting wet
- Add sealant joints to planned maintenance checks
- Brief cleaning staff to treat joints gently
- Photograph and log failed joints across the estate
Keep extract fans working and vents clear. Constant damp lets mould take hold even on anti-mould grades, so get faulty extract looked at.
Boards behind panels and vanity tops can swell when water gets past a failed joint. After that, those parts need replacing rather than resealing.
Do you need washroom sealing in Isle of Dogs?
Low-level joints get hit by mop buckets, cleaning trolleys and feet, especially at floor edges and around urinals and WC pans.
Look out for the following:
- Urinal joints that look unhygienic
- Complaints from staff, guests or users about tired washrooms
- Sealant stained black around basins and showers
- Open joints at the base of cubicle panels
For centre management at a site such as New Cross Gate Retail Park (1.3 miles south-west of Isle of Dogs), washroom work is planned around footfall.
What to look for in a quote
- How long is the guarantee, and what does it include?
- The named product and why it was chosen
- Are they CHAS accredited or on Constructionline?
- How the joint faces will be prepared and primed
Your questions answered
Is hospital work, at somewhere like Blackheath Hospital, something you do?
Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Must a hotel around Isle of Dogs close while you work?
Rarely. Rooms or floors are done in turn, so the rest of the hotel keeps trading. Housekeeping and our team agree each day’s rooms.
How long does a typical visit take?
That varies with the scale of the job, though a typical visit typically takes between a morning and a week or so, set by the number of rooms and the phasing you need. Larger or phased jobs take longer, and we will give you a timescale with the quote.
What if there’s asbestos in the old mastic?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.
Does the weather affect the work?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Internal work is far less affected.
Do you hold CHAS accreditation?
Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.
What guarantee comes with washroom resealing?
A 12-month guarantee covers the work. It applies to our workmanship, not to plumbing leaks or damp from poor ventilation.
On site: what to expect
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. Planning a London job such as one in Isle of Dogs starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we’ll schedule to suit.
- 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.
- Failed silicone is removed completely and the surfaces cleaned of every trace.
- 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.
What we need from you
- Tell staff and tenants when we will be in
- Clear stock, furniture or equipment away from the joints
- Point out any areas we must not close
Get a fixed quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call the office on 01277 525 020 or email us with what you know.
Read more
Different surfaces, different methods
Changing rooms and gyms
We phase work so not every changing area is closed at once. Phasing follows your site hours and access windows.
Basins and vanity tops
Stone and some composite tops need a neutral-cure sealant and we choose a neutral-cure grade for them.
What affects the price in Isle of Dogs
Quotes vary with the job. It mainly depends on:
- Whether the work must be split into stages
- Induction, permit and paperwork requirements
- Travel to remote or island sites
- Specialist products, such as fire-rated or hygienic sealants
What a job costs comes down to how many linear metres there are, what has to come out first and how the joints are reached. Call for a quote when you are ready.
Details that help us quote
A good diagnosis starts with the right details. Let us know:
- Where the site is, with the postcode
- Photos of the joints, close up and from further back
- Any specification or named product
- Whether the building will be occupied during the work
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.
Places near Isle of Dogs
Other services in Isle of Dogs
Owners, agents and contractors
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Isle of Dogs can sit alongside others in a wider programme across Greater London.