Greater London · England
Regrouting in Coldharbour, Greater London
Regrouting for Coldharbour, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Good tiles let down by tired grout
- Grout that’s cracking and breaking up
- Gaps where the shower grout has gone
Regrouting for homes and businesses in Coldharbour
Most regrouting jobs include resealing too. Grout is for the joints between tiles, but internal corners and edges flex, so they need flexible silicone instead. Renewing both together means nothing is left half-done. We work on bathroom floors, tiled floors and shower walls, and common reasons people get in touch are good tiles let down by tired grout and floor grout that won’t come clean.
Hard London water leaves limescale on sealant, grout and taps alike. For a bathroom or kitchen in Coldharbour, getting the joints right keeps water where it belongs and the room looking clean.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Coldharbour (E14, SE10, E22)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
Housing providers, facilities teams and property managers book us too in Coldharbour and across Greater London. Several sites can go on one quote, and we’re fully insured for the work.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Common questions in Coldharbour
Do you work for landlords with property near Canary Wharf station?
Yes, we work for letting agents and landlords. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Can worn sealant in a flat in Coldharbour cause a leak downstairs?
Yes, it can. Water that gets past failed sealant or cracked grout can run under the bath or tray and show up on the ceiling below. It’s far simpler to replace tired sealant early than to deal with a neighbour’s ceiling.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Could my grout be a different colour after regrouting?
Yes, plenty of people choose to. A darker grout hides marks better, while lighter grout brightens a room.
Where is Mr Mastic based?
We work from Crawley. We cover Coldharbour and the rest of Greater London, along with the rest of our area.
How long should I wait before showering?
The wait depends on the materials and how warm the room is. We will give you a time to follow when the job is done.
When it is not the sealant
Sealant is not the answer to every problem, and we’ll tell you before we start. It will not solve:
- A floor or wall that keeps moving
- Leaks from pipes, valves or wastes (a plumber’s job)
- A leaking wet room membrane
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before booking.
Where we work in Coldharbour
- Shower walls
- Bathroom floors
- Kitchen splashbacks
- Tiled floors
- Bathroom wall tiles
- Wet rooms
What affects the quote in Coldharbour
Call for a quick quote. What matters most is:
- The size of the job
- The old material and how stubborn it is
- Any working-time requirements on site
- The number of rooms or windows
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins.
What we need to know
When you call or email, these details help:
- Access, such as stairs, a lift or height
- The address or postcode of the job
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
How the visit works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a shower enclosure, longer for a whole room. In Coldharbour, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- We agree the area to be regrouted and point out any loose tiles.
- Grout is raked out without chipping the tiles.
- Dust is cleared from every joint.
- We grout the joints and wipe the tiles clean.
- Internal corners and edges are resealed.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Mention any tricky access
- Let us know if you’ve seen damp or leaks
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
Advice
What regrouting looks like in Coldharbour
London has hard water, which leaves limescale on sealant, grout and taps, and it has to be cleaned off before new sealant goes in. There are hotels and other places to stay in and around Coldharbour. Hotel bathrooms are part of our work as well as homes, and can be done room by room.
For an older house near a landmark such as All Saints Church, walls and floors in older homes can move, and sealant and grout show it first. Coldharbour is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Coldharbour is about 2 miles north of Greenwich, in Greater London. Homes, rented property, offices and hotels in Coldharbour can book us for regrouting, old or new, large or small. The work is guaranteed for a year. Our Greater London coverage runs to 764 places, Coldharbour among them.
Every address in E14, SE10 and E22 is covered for regrouting. Whether your property is on Canada Square, Simpson's Road and Amsterdam Road or anywhere close by, we can help. Coldharbour sits on or near the A1206 and A1261, so getting to you is simple. Close by, we work in 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). Further out, we also cover 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).
Near you in Coldharbour
Locally, jobs take us to homes and businesses close to Canary Wharf College 3, Mudchute Park and Farm and Tower Hamlets College and the streets around them. Coldharbour’s nearest station is Canary Wharf station, about 0.5 miles north-west. Nearby you will also find Old Royal Naval College (1.3 miles south) and Poplar Hospital (0.6 miles north). For a walk, there’s Tower Hill and Lavender Pond.
Also near Coldharbour
What else we do in Coldharbour
What happens if it’s left?
Colouring the surface of old grout is a quick cosmetic fix. They won’t fill gaps or keep water out, and stains can show through again. Raking out and regrouting replaces the grout itself. 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 Coldharbour.
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
What you get with us
- ARBOMaster approved applicator
- Tidy, careful work
- Experience in homes, commercial sites and hotels
- We are fully insured
Take a look at our cost guide and customer reviews.
What we’re called out for in Coldharbour
Grout is porous, so water, soap and grime soak into it. Over time it stains, softens and starts to crumble and showers that get daily use suffer most.
Any of these means the joints need attention:
- Grout that is cracking and breaking up
- Gaps where the shower grout has gone
- Grout in corners that has cracked
- Old grout in a dated colour
If you look after a building such as Woolmore Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
What to look for in a quote
- Is the old sealant removed completely?
- Whether you can choose the colour
- What preparation is included
- Whether VAT is included
DIY versus a professional finish
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.