Greater London · England
North Greenwich Commercial Sealant
Washrooms, bathrooms and kitchens in North Greenwich need attention? We cut out the old, prepare the joints and apply the right sealant.
- Whole floors of tired en suites
- Water marks on ceilings under bathrooms
- Split sealant around staff kitchen worktops and sinks
What affects the cost of commercial sealant
The price is agreed before any work begins. It’s based on:
- How many rooms, windows or areas are involved
- Whether the work is at height
- The old material and how stubborn it is
- Whether there’s mould to deal with
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
What we need to know
When you contact us, these details help:
- Access, such as stairs, a lift or height
- Whether it has been sealed before
- What’s wrong with the joints now
- The address or postcode of the job
Want a quote for commercial sealant? Please call 0345 464 0079 or email us with a few details. We’ll explain what we’d do and send you a clear quote before any work starts.
Commercial sealant in North Greenwich, done properly
Mr Mastic brings more than 20 years’ experience to commercial sites, and we are fully insured and ARBOMaster approved. If your site needs RAMS or insurance details, tell us, and we will confirm what we can supply with the quote. If you have failed joints in office kitchens and tea points and silicone laid over old silicone by a previous contractor, we can put it right, on student & care accommodation, rental portfolios and welfare facilities alike.
Commercial work in London comes with its own logistics: loading restrictions, building rules and tight access. Timings and access are agreed with the building before work starts in North Greenwich, and room-by-room programmes can be planned where needed.
We stand behind the work with a 12-month guarantee.
- Location
- North Greenwich (E14, SE8, SE10)
- Region
- Greater London
- Guarantee
- One year on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Also near North Greenwich
Also in North Greenwich
FAQs for North Greenwich
Can you help a landlord with a rental near Greenwich station?
Yes, we work for landlords and agents. Just call 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Do you work in hotels near North Greenwich?
Yes, hotels and guest houses are among the places we work. Rooms can be done a few at a time, so the building stays open.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How long does commercial sealant take?
That depends on how much there is to do, but most jobs take as long as the scope needs, from one welfare room to a full building. We will give you a better idea when we quote.
Do you provide RAMS?
Tell us what your site asks contractors for. We will confirm what we can provide alongside the quote.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Workplaces and buildings in North Greenwich
Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange. London has hard water, which leaves limescale on sealant, grout and taps, and it has to be cleaned off before new sealant goes in.
As a London address, North Greenwich can be tricky for parking: let us know about parking bays, permits or a driveway. If you let a flat or house near Greenwich station, sealant work can be quoted for a single flat or a whole portfolio.
North Greenwich is about 1 mile north-west of Greenwich, in Greater London. Whether you’re in the middle of North Greenwich or further out, commercial sealant is available for homes and businesses alike. North Greenwich is one of 764 places in Greater London we cover for commercial sealant.
Our applicators cover all of E14, SE8 and SE10 for commercial sealant and the streets around it. Streets in the area include Creek Road, Wynan Road and Undine Road, and we cover them all. We also cover the places around North Greenwich: Isle of Dogs (1 mile south-east), Millwall (1 mile west), Cubitt Town (1 mile north-east), Deptford (1 mile south-west) and Greenwich (1 mile south-east). Further out, we also cover 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).
Around North Greenwich
Locally, jobs take us to homes and businesses close to Laban Centre, Canary Wharf College 3 and St. Paul's, among other places. Also close by are Mudchute Park and Farm (less than half a mile north-east) and The Ferry House Public House (less than half a mile south-east). North Greenwich’s nearest station is Greenwich station, about 0.8 miles south. Other landmarks nearby include Old Royal Naval College (0.7 miles south-east) and Greenwich Castle (1.1 miles south-east). For a walk, there’s Sue Godfrey Nature Park and Tower Hill.
When something else is needed
New sealant can’t fix everything, and we will tell you before work begins. Sealant won’t put right:
- Cracked trays or baths rather than failed joints
- Failed tanking or loose tiles behind the sealant
- Water coming from plumbing rather than sealant
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
Joints and surfaces we work on
- Hotel bathrooms
- Rental portfolios
- Retail & leisure sites
- Student & care accommodation
- Welfare facilities
- Office washrooms & kitchens
When to call us in North Greenwich
A hotel shower or office washroom is used many times a day, and daily cleaning with strong chemicals wears sealant down. So the silicone ages faster than it would at home.
People generally contact us when they notice something like this:
- Mouldy washroom sealant that staff and guests notice
- Split sealant where wet room floors meet walls
- Washrooms that need sorting before an inspection
- Split sealant around staff kitchen worktops and sinks
Schools such as Harbinger Primary School are buildings too, and sealant in washrooms, kitchens and changing areas can be renewed around term times or opening hours.
What your quote should include
- How long to leave it before use
- Whether they seal over old material or remove it
- Whether VAT is included
- The length of the guarantee
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
If you manage several properties in or around North Greenwich, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
The process
Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take as long as the scope needs, from one welfare room to a full building. For a job in North Greenwich, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- We walk the site with you and agree the rooms, the order and the hours.
- Room by room, we protect the area and remove all the old sealant.
- Joints are cleaned, treated for mould and dried.
- Anti-fungal sanitary silicone goes into wet areas, with suitable sealants elsewhere.
- We check every room and give its cure time for housekeeping.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Mention any tricky access
- Let us know about earlier repairs to the joints
How to get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
Advice
How the job changes by surface
Retail & leisure sites
Changing areas and showers at leisure sites are wet all day, so joints are sealed with anti-fungal sanitary silicone.
Office washrooms & kitchens
A row of basins on a vanity top has a long joint that collects water. We renew it in one tidy, continuous bead.
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Act on lifting sealant before it leaks
- Pass on the cure time to whoever cleans the rooms
- Note the date each area was done
- Encourage users to squeegee shower walls
Keep the extraction running and maintained. In internal bathrooms, a weak or broken fan lets moisture linger, and mould comes back faster without it.
Planned resealing is easier to manage than emergency repairs. Rooms can be scheduled around occupancy and staff, instead of rooms closing without warning.