Greater London · England
Remedial sealant & repairs in Ruxley, Greater London
Professional remedial sealant in and around Ruxley, with old sealant always removed completely and a one-year guarantee.
- Caulk or the wrong sealant used in a wet area
- Repeat leaks from the same joint
- Gaps opening along the back of the worktop
Remedial sealant for homes and businesses in Ruxley
Movement and expansion joints fail when the sealant can’t stretch. We cut out the failed sealant and set the depth with backing, then a flexible sealant matched to the movement goes in. Common call-outs are for mould trapped under a layer of silicone and worktop sealant that has shrunk and split, across leaking tray & enclosure joints, shrunken worktop sealant and expansion joints.
In much of London, period terraces have been converted into flats over the years, with bathrooms fitted into whatever space was available. A compact bathroom that steams up every day is hard on silicone and grout, and homes in Ruxley are no different.
Our work is backed for twelve months.
- Where
- Ruxley (DA14)
- Region
- Greater London
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Ruxley questions
Can you help a landlord with a rental near Albany Park station?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.
Could a tired shower seal in my Ruxley flat affect the neighbours below?
Yes. In a flat, water from a failed bath or shower seal has only one way to go, and that is down. Cutting out the old sealant and laying a new bead early stops it getting that far.
How long does remedial resealing take?
A little longer than a standard reseal. Most jobs take a few hours, and we confirm the time with your quote.
Do you offer different sealant colours?
In most cases you can choose. We will tell you which colours the right product comes in.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Do you fix expansion and movement joints?
Yes. Backing sets the depth and stops the sealant sticking to the back.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or email us.
Also in Ruxley
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
What affects the quote in Ruxley
Call for a quick quote. The main things that affect it are:
- The size of the job
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- If it’s domestic, commercial or a hotel
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
- Photos by email, if that is easy
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear quote before work begins.
Why deal with it now?
DIY removal often leaves scratches and a film of residue, and any film left behind stops new sealant sticking. Careful stripping is where most of our time goes. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Ruxley, the repair is bigger than the sealant job would have been.
The cost depends on how much there is to do, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why choose Mr Mastic in Ruxley
- Approved under the ARBOMaster scheme
- More than 20 years in sealant work
- Rated 4.9 stars on Google
- We never seal over old sealant
Read what affects the cost or what customers say.
Honest limits
New sealant can’t fix everything, and we’ll tell you before we start. It won’t solve:
- Plumbing leaks behind walls or under trays
- A bath, tray or worktop that moves until it’s properly fixed
- Older mastics that may need an asbestos check before removal
If in doubt, ring 0345 464 0079 or email us and we will say what we think before you book.
What we seal
- Leaking tray & enclosure joints
- Expansion joints
- Mouldy bath & shower sealant
- Failed movement joints
- Shrunken worktop sealant
- Botched or over-sealed joints
Different surfaces, different methods
Over-sealed & botched joints
Previous removal attempts can leave scratches or gouges. We work carefully to avoid adding to it, and point out any existing damage.
Movement & expansion joints
Some movement joints have been filled with mortar or grout. We rake that out where it can be removed and seal with a flexible product.
Remedial sealant in Ruxley: local notes
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’s water is hard, which leaves limescale on sealant, grout and taps.
In the older streets around St Botolph's Church, walls and floors in older homes can move, and sealant and grout show it first. Letting a property close to Albany Park station? Then failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Ruxley is about 2 miles south-east of Sidcup, in Greater London. We carry out remedial sealant for homes and businesses in Ruxley. Ruxley is one of 764 towns and villages in Greater London where we work for remedial sealant. There’s also a page for London, about 11 miles away.
Our applicators cover all of DA14 for remedial sealant and the streets around it. Neighbouring places we cover for remedial sealant include Upper Ruxley (1 mile south-east), Foots Cray (1 mile west), Hockenden (1 mile south-east), North Cray (1 mile north) and Stonehill Green (1 mile east). We also work in nearby towns such as London (11 miles north-west), City of Westminster (14 miles north-west), Marylebone (14 miles north-west), St Pancras (13 miles north-west), Shoreditch (12 miles north-west) and Walthamstow (14 miles north-west).
Local landmarks in Ruxley
We work in homes and buildings around Kemnal Technology College, Foots Cray Meadows and Walsingham School and the streets around them. The nearest railway station is Albany Park station, roughly 1.5 miles north of the centre. A little further out are Metropolitan Police Museum (1.8 miles north-west) and Eynsford Castle (4.6 miles south-east). For a walk, there’s The Warren and Summer Hill.
Common problems we fix in Ruxley
Products get mixed up: caulk where it gets wet, rigid sealant where things move, or an acetoxy silicone on a surface it can mark. None of them last.
Keep an eye out for these signs:
- Repeat leaks from the same joint
- Movement joints that have split or pulled away
- Dark patches showing through the sealant
- Decorators’ caulk around a bath or shower
Ruxley is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Comparing quotes
- Which colour the sealant will be
- What the quote includes, VAT included or not
- How the surfaces are prepared before sealing
- What insurance they hold
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for most joints, depending on how much old sealant has to come out. In Ruxley, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- First we find out how and where the joint has failed.
- Every layer of old sealant is cut and cleaned out.
- The joint is cleaned, treated for mould and left to dry.
- We use the right backing and sealant for any joint that moves.
- We tool the joint and tell you about anything else that needs attention.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we are working on
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.