Greater London · England
Bath & shower resealing (mastic) in Coldharbour, Greater London
Bath, shower and sink resealing with new mould-resistant silicone for homes and businesses in Coldharbour and across Greater London. Send pictures for a free, fixed quote.
- An untidy old seal
- Black spots in the silicone
- Missing sealant behind the taps
Can I fix it myself?
Kits are cheap and easy to find, but many of the jobs we do start with putting right a DIY repair. Doing it properly first is generally the cheaper route.
If you do try a kit, read the instructions carefully and work on a clean, dry surface, and give it the full curing time. If it doesn’t work out, we can still repair it properly.
Bath resealing in Coldharbour without replacing anything
We cut out all of the old sealant, deal with any mould, and reseal with new mould-resistant silicone. We do this for baths, showers, sinks and worktops, including the awkward bits behind the taps. If you’re dealing with gaps by the taps and stained silicone, we can help.
We guarantee the work for a year. If something is not right in that time, we come back and put it right.
- Location
- Coldharbour (E14, SE10, E22)
- Region
- Greater London
- Cover
- One year on every repair
- Quote
- Free and fixed, from your photos
- Telephone
- 0345 017 0787
- Page updated
- 23 October 2026
Coldharbour questions
Is there any odour?
There can be some smell while we work, which is why we ventilate. It fades as everything cures.
Why does mould come back so fast?
Generally poor ventilation and moisture sitting on the joint. Mould-resistant silicone and good ventilation help.
What if the damage is worse than the pictures show?
We stop, show you and agree any change before carrying on. Nothing extra is done without your say-so.
Is there a guarantee?
Yes: twelve months. If anything goes wrong with the repair within the year, we return to fix it.
How much does bath resealing cost in Coldharbour?
Every job gets a fixed quote from your photos. Send a close-up of the damage and a wider photo and your postcode.
Can you redo someone else’s repair?
Typically, yes. We remove the old repair before doing a new one, so let us know about it.
Can you quote from photos?
Yes, almost always. Clear pictures let us give you a fixed quote without visiting.
Do you do work for letting agents?
Yes, frequently. We can quote for several properties together and work between tenancies.
Keeping it looking good
Good habits make a big difference to how long a repair lasts. Here’s what we suggest:
- Reseal when black spots will not clean off
- Run the extractor fan during and after showers
- Keep the joints dry
- Clean the sealant gently and regularly
Let it cure fully before using the bath or shower, normally around 24 hours.
If you notice damp, stains on the ceiling below or loose tiles, act quickly. It may be more than a reseal, and we will say if you need a builder or plumber.
The process
A typical visit goes like this: we arrive at the agreed slot, sheet and mask the area around the job, do the job and clear up. Allow a couple of hours from start to finish. Before we go, we’ll explain how long to leave it and how to look after it.
- First we strip out every bit of the old mastic.
- We clean the joint and treat any mould.
- The joint is dried thoroughly.
- We fill a bath with water before sealing so the gap is at its widest.
- We run a new bead of mould-resistant silicone and smooth it neatly, including around the taps.
How to prepare
- Tell us about any previous repairs or coatings
- Clear toiletries, mats and anything else from around the area
- Have a window or extractor fan available
Get a quote
No survey visit is needed: we price from photos. Send them through the quote form, or call 0345 017 0787 if you’d rather talk it through.
Read more
Nearby places to Coldharbour
Also in Coldharbour
Coldharbour and nearby
Coldharbour is about 2 miles north of Greenwich, in Greater London. We visit customers in Coldharbour and the surrounding area, so you don’t need to take anything anywhere. Coldharbour is one of 764 towns and villages in Greater London where we work.
We cover every part of E14, SE10 and E22. Whether you live on Canada Square, Simpson's Road and Amsterdam Road or a nearby road, a technician can come to you. Coldharbour is on the A1206 and A1261, which makes it straightforward to reach. We also cover the places around Coldharbour: Blackwall (1 mile north-east), London Docklands (1 mile west), Poplar (1 mile north-west), Canary Wharf (1 mile west) and Heron Quays (1 mile west). Larger places within reach include London (4 miles west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (5 miles west) and Shoreditch (3 miles north-west).
Local landmarks in Coldharbour
In Coldharbour, that means homes near The Gun pub, Woolmore Primary School and All Saints Church and the streets around them. Nearby too are Mudchute Park and Farm (0.8 miles south), Canary Wharf College 3 (0.7 miles south-west) and Tower Hamlets College (0.6 miles north-west). For rail, the closest station is Canary Wharf station, about 0.5 miles north-west of the centre. Other landmarks nearby include Poplar Hospital (0.6 miles north) and Surrey Quays Shopping Centre (1.8 miles west). The countryside around Coldharbour includes Tower Hill and Lavender Pond.
- Local facilities include Holy Trinity (2.3 miles north-west)
When to call us in Coldharbour
Even good sealant eventually discolours. Steam, soap and movement all take their toll.
Signs it’s time to call us include:
- Discoloured, yellow sealant
- Damp near the bath
- Gaps in the seal
- Black mould in the sealant
What your quote should include
- What happens if the damage is worse than the pictures show
- Who will actually do the work
- Is the price fixed, and does it include VAT?
- How the colour is matched
Why it’s worth resealing in Coldharbour
Resealing is routine maintenance. Leaving split or mouldy sealant can let water reach the walls and floor, and that damage costs much more to fix. There are no surprise extras on the day. What we quote from your photos is what you pay, and if the damage turns out to be different, we discuss it before starting.
Why Coldharbour clients choose us
- Straight answers about what a repair can do
- Free fixed quotes from pictures
- Work done at your home or business
- One-year guarantee on every repair
See our pricing.
What a repair can’t fix
It helps to know what we cannot do too:
- Tiles that move, until they’re refixed
- A flexing bath
- Very wide gaps that need a trim
If in doubt, send pictures and we will say what we think.
Materials we work on in Coldharbour
- Wet rooms
- Kitchen worktops & sinks
- Basins & vanity units
- Shower trays & enclosures
- Baths
What your bath or shower is made of matters
Sinks and worktops
Basins, vanity units and kitchen worktops are resealed too, once the joint is completely dry.
Shower trays
Trays are sealed with weight on them, for the same reason.
Landlords, agents and businesses in Coldharbour
Rental properties take more wear, and replacing items every time a tenant leaves is expensive. Repairing between tenants keeps the property presentable for less.
We work for landlords, letting agents and housing providers in Coldharbour as well as homeowners. A repair between tenants keeps the property empty for less time, and it normally costs far less than a refit.
About our accreditations · Every repair comes with a one-year guarantee.
