Greater London · England
Bathroom Resealing in Eltham
Professional bathroom resealing in and around Eltham, with every bit of old sealant taken out first and a 12-month guarantee.
- Failed sealant on the screen profile
- Water getting behind the kitchen upstand
- Damp behind the bath or under the tray
Bathroom resealing in Eltham, done properly
Across Eltham, the joints we reseal are the ones that fail in any home: bath edges, tray joints, basin backs and kitchen upstands. Each one is stripped, cleaned and dried before new silicone goes in. We’re often asked to deal with water getting behind the kitchen upstand and damp behind the bath or under the tray, across baths, kitchen worktops & upstands and wet rooms.
Much of London’s older housing is Victorian and Edwardian terraces, many of them now split into flats, and bathrooms were often squeezed into small rooms. Small, steamy rooms are where mould gets into sealant and grout fastest.
All our work comes with a 12-month guarantee.
- Place
- Eltham (SE9, SE12, DA15, BR7)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Common questions in Eltham
Can worn sealant in a flat in Eltham cause a leak downstairs?
It can, yes: water that gets past a split bead or cracked grout often runs under the tray and shows on the ceiling below. Replacing the sealant and grout before that happens is much less trouble than repairing a neighbour’s ceiling.
Can parking be tricky for a visit in Eltham?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Can I choose the colour of the sealant?
You’re not limited to white: white, clear and colours to suit tiles and worktops. We can help you pick when we quote.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Will there be a smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
Can landlords and businesses book you?
Yes. As well as householders, we work for landlords, agents, businesses and hotels in Eltham.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
What affects the quote in Eltham
Your quote is based on your job. We take into account:
- When we can work, for business premises
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
Doing several joints on one visit normally makes better use of the time than several visits. We’ll give you a clear price for the lot.
Asking for a quote
You don’t need to know the technical terms. Just tell us:
- The rough size of the job
- Where the property is
- Any previous sealing or DIY work
- The type of property
To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before we start.
How it works
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a couple of hours for a single bath or shower. In Eltham, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- We look at every joint first and check for movement or leaks.
- The old silicone is cut out completely, along with the film it leaves on the tiles.
- The joint is cleaned, degreased and treated for mould.
- When the joint is dry, and a bath has been filled with water, the new silicone goes on.
- The bead is tooled smooth and you’re told the cure time, generally around 24 hours.
Before we arrive
- Mention any tricky access
- Move anything stored near the joints
- Let us know if you’ve seen damp or leaks
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Read more
Bathrooms and kitchens in Eltham
London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, so tired sealant is best dealt with early. London has hard water, so limescale builds up on sealant, grout and fittings.
If you live in an older home near Church of Holy Trinity, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. For landlords with property near Mottingham station, a reseal between tenants is a quick way to make the bathroom and kitchen look cared for.
Eltham is about 7 miles west of Dartford, in Greater London. Every kind of property in Eltham can book us for bathroom resealing. The work is guaranteed for a year. 764 places in Greater London are on our list, from the larger towns to small villages. London is on our list too, about 8 miles from Eltham.
Every address in SE9, SE12, DA15 and BR7 is covered for bathroom resealing. Streets in the area include Eltham High Street, Tarnwood Park and Elmslie Court. Being close to the A20 and B263, Eltham is simple for us to get to. We also cover the places around Eltham: Middle Park (1 mile west), New Eltham (1 mile south-east), Well Hall (1 mile north), Coldharbour (1 mile south) and Avery Hill (1 mile north-east). Further out, we also cover London (8 miles north-west), City of Westminster (10 miles north-west), Marylebone (10 miles north-west), Kensington (12 miles west), St Pancras (9 miles north-west) and Shoreditch (8 miles north-west).
Local landmarks in Eltham
Around Eltham, our work takes us to homes and buildings near Horn Park, Eltham Church of England Primary School and The Greyhound Public House, among other places. Eltham has its own railway station: Mottingham station. Other landmarks nearby include Eltham Community Hospital (under half a mile north) and Metropolitan Police Museum (2.1 miles east). For a walk, there’s The Tarn and Summer Hill.
Landlords, agents and businesses in Eltham
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
What we’re called out for in Eltham
Silicone needs a clean, dry surface without any grease to stick to. Soap residue, oils and leftover silicone film all get in the way, and a joint that looked fine soon begins to come away.
Common reasons people contact us include:
- A joint torn by a bath that flexes
- Shrunken sealant along the back of a worktop
- Leaking joints on a shower screen
- Sealant that has split, shrunk or peeled away
Eltham is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Before booking anyone
- Is the old sealant removed completely?
- Which sealant they’ll use, and why
- How long to leave it before use
- Who does the work, and how experienced they are
What happens if it’s left?
Running new silicone over the old joint can look tidy for a few weeks, but it can’t stick to what’s underneath. Water creeps under it and mould follows. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in Eltham.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why choose Mr Mastic in Eltham
- ARBOMaster approved applicator
- Trusted Arbo and Everbuild sealants
- Sealant colour chosen to suit
- 4.9 on Google from 180+ five-star reviews
Read what affects the cost and customer reviews.
More services for Eltham
Different surfaces, different methods
Kitchen worktops & upstands
Kitchen joints need more degreasing than bathroom ones, because cooking grease stops sealant bonding. The extra cleaning is what makes the bead last.
Baths
A bath shifts slightly every time it’s filled, so it’s filled with water before the bead goes on. The joint is then laid with the bath at its lowest point and is not stretched when it’s used.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.