Greater London · England
Remedial sealant & repairs in Welling, Greater London
Our applicators work in Welling on removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- A second bead peeling off the first
- Wide, uneven beads that look worse than the old ones
- Decorators’ caulk around a bath or shower
What affects the cost of remedial sealant
For a quick quote, just ask. The main things that affect it are:
- Any mould that needs treating
- How many areas need sealing
- The old material and how stubborn it is
- The amount of work
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Asking for a quote
Before you ask for a quote, have a think about:
- How we’d reach the joints
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
Remedial sealant in Welling
Movement and expansion joints fail when the sealant can’t stretch. The old sealant comes out and backing goes in to control the depth, then a flexible sealant matched to the movement goes in. If you’re dealing with movement joints that have split or pulled away and mould trapped under a layer of silicone, we can help, on shrunken worktop sealant, failed movement joints and expansion joints alike.
London’s water is hard, so limescale builds up along sealant lines, in grout and on fittings. For a bathroom or kitchen in Welling, getting the joints right keeps water where it belongs and the room looking clean.
All our work comes with our 12-month guarantee, wherever you are in Greater London.
- Where
- Welling (DA16, DA15, DA6)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Welling: your questions answered
I let a flat near Welling station. Can you help?
Yes. We work for landlords and letting agents as well as householders. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
Can parking be tricky for a visit in Welling?
Parking in Welling, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
How long will it take to strip and reseal the joint?
A little longer than a standard reseal. For most joints, it’s a few hours, and we confirm the time with your quote.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can I choose the sealant colour?
In most cases you can choose. We’ll tell you which colours the right product comes in and agree one before we start.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages.
Is there any odour?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Do you need remedial sealant in Welling?
A lot of failed joints have been sealed over rather than replaced. New silicone cannot stick to the old bead, so the top layer lifts and water and mould collect between the two.
If you can see any of these, it’s time to have the joints looked at:
- Repeat leaks from the same joint
- Kitchen joints letting water behind the worktop
- Dark patches showing through the sealant
- Sealant that came away because the surface wasn’t prepared
If you look after a building such as Danson Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Questions to ask before booking
- What product goes in the joint
- Is VAT in the price?
- What guarantee comes with the work
- Which colour the sealant will be
How the visit works
At the end, we look at the finished work together. The work normally takes a few hours for most joints, depending on how much old sealant has to come out, depending on the size of the job. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- We protect the surfaces around the joint.
- The botched or failed sealant is cut away completely.
- We clean and degrease the joint and look for signs of movement or water.
- New sealant goes in once the joint is dry, and is tooled smooth.
- We give you the cure time and explain what caused the failure.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you are ready, phone 0345 464 0079 or email us.
Advice
Leave it or put it right?
Adding more sealant is the usual quick fix, and it rarely works. It does not grip the old layer, so the leak carries on and there’s now more to remove. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble for homes in Welling.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
Why us?
- A 12-month guarantee on all work
- Any old sealant cut out fully, not covered over
- A sealant colour to suit the surroundings
- We’re fully insured
Landlords, agents and businesses in Welling
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
Towns and villages near Welling
More services for Welling
Remedial sealant in Welling: local notes
In a London flat, water from a failed bath or shower seal can reach the neighbours below, so tired sealant is best dealt with early. London’s water is hard, so limescale builds up on sealant, grout and fittings.
Welling is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Homes close to St John's Church include some older properties, and bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Welling is about 9 miles east of London, in Greater London. Wherever you are in the DA16 postcode area, we cover remedial sealant for homes and businesses. 764 places in Greater London are on our list. London is on our list too, about 9 miles from Welling.
Our applicators cover all of the DA16, DA15 and DA6 postcode area for remedial sealant. Local streets include Days Lane, Hook Lane and Lyme Road. Main roads around Welling include the A207, which makes travel easy. We also cover the places around Welling: Crook Log (1 mile east), Blendon (1 mile south-east), Upton (1 mile east), Bexleyheath (1 mile east) and West Heath (1 mile north-east). Larger places within reach include London (9 miles west), City of Westminster (12 miles west), Marylebone (12 miles west), Kensington (14 miles west), St Pancras (11 miles north-west) and Shoreditch (9 miles north-west).
What’s near Welling
Typical jobs here are in homes near Nags Head pub, Danson Park and Bexley Grammar School, among other places. The nearest railway station is Welling station, roughly 0.5 miles north-west of the centre. Well-known places in the area include Greenwich Castle (5 miles west) and Broadway Shopping Centre (1.6 miles east). Not far away are The Tarn and Summer Hill.
What the job involves on each surface
Windows & doors
Failed frame mastic is often hard, cracked and in several layers. All of it is cut out and the frame and wall cleaned before backing and resealing.
Leaking trays & enclosures
A cracked tray, failed valve or leaking waste needs a different fix. We will tell you what we find.
What we cannot put right
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Plumbing leaks behind walls or under trays
- A bath, tray or worktop that moves until it’s properly fixed
- A cracked shower tray or bath (that needs repair or replacing)
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
What we seal
- Shrunken worktop sealant
- Leaking tray & enclosure joints
- Failed movement joints
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Expansion joints