Greater London · England
Remedial sealant & repairs in Havering-atte-Bower, Greater London
Professional remedial sealant in and around Havering-atte-Bower, with every bit of old sealant taken out first and a 12-month guarantee.
- Wide, uneven beads that look worse than the old ones
- Caulk or the wrong sealant used in a wet area
- Gaps opening along the back of the worktop
How we handle remedial sealant in Havering-atte-Bower
A joint that keeps letting you down needs more than another bead. Send pictures when you ring 07833 053749 or send us an email, and say how long ago it was last done. We’re often asked to deal with torn expansion joints and sealant that came away because the surface wasn’t prepared, across leaking tray & enclosure joints, failed movement joints and expansion joints. As mastic and silicone sealant specialists, we cover Havering-atte-Bower for remedial sealant and other sealant work.
London’s water is hard, so limescale builds up along sealant lines, in grout and on fittings. In Havering-atte-Bower, remedial sealant is as much about a room looking cared for as about keeping water out.
The work is covered for a year after we finish. If anything is not right with it, call 07833 053749 or drop us an email.
- Location
- Havering-atte-Bower (RM4)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- Telephone
- 07833 053749
- Last updated
- 26 October 2026
Common questions in Havering-atte-Bower
Can parking be tricky for a visit in Havering-atte-Bower?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Can you help a landlord with a rental near Harold Wood station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can call 07833 053749 or send us an email with the details for a clear quote.
Are you insured?
Yes. Full insurance covers our work.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages.
Can you strip sealant from an acrylic tray safely?
Yes. Careful removal is most of a remedial job, particularly on softer surfaces like acrylic.
Someone resealed my shower and it’s leaking again. Can you help?
Yes. We check it’s the sealant and not the tray, valve or waste, then strip and reseal the joints.
Where do you work from?
Mr Mastic is based in Crawley. We cover Havering-atte-Bower and the rest of Greater London.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Havering-atte-Bower homes and their sealant
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, and it has to be cleaned off before new sealant goes in.
Havering-atte-Bower is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you live in an older home near Church of St John the Evangelist, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Havering-atte-Bower is about 3 miles north-west of Harold Wood, in Greater London. Jobs in Havering-atte-Bower get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Greater London coverage runs to 786 places, Havering-atte-Bower among them.
We cover every part of the RM4 postcode area for remedial sealant. We cover properties on North Road, Broxhill Road and Bower Farm Road and the roads around them. Neighbouring places we cover for remedial sealant include Chase Cross (1 mile south-west), Stapleford Abbotts (1 mile north-west), Redbridge (2 miles west), Lambourne End (2 miles west) and Lambourne (3 miles north-west). Larger places within reach include London (15 miles south-west), St Pancras (15 miles south-west), Shoreditch (13 miles south-west), Walthamstow (9 miles west), Hoxton (13 miles south-west) and Whitechapel (13 miles south-west).
What’s near Havering-atte-Bower
We work in homes and buildings around The Top Oak pub, Havering Country Park and Bower Park Academy, among other places. For rail, the closest station is Harold Wood station, about 2.7 miles south-east of the centre. Other landmarks nearby include Romford Shopping Hall (2.8 miles south) and Harold Wood Hospital (2.5 miles south-east). Open spaces near Havering-atte-Bower include Bedfords Park.
What happens if it’s left?
Ripping out a bathroom isn’t usually needed. When the fittings are sound, stripping and resealing the joints is often enough. If they’re not, we will tell you. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Putting it right early is much less trouble.
The cost reflects the work involved, not guesswork. That is why we ask about the job first and give you a clear quote before any work starts.
What you get with us
- We agree the colour with you first
- Domestic, commercial and hotel work
- 20+ years of sealant experience
- Tidy, careful work
Take a look at our cost guide and our reviews.
How it works
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for most joints, depending on how much old sealant has to come out. In Havering-atte-Bower, 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.
- Surrounding tiles, trays and frames are protected first.
- Every layer of failed sealant is stripped out.
- We clean and degrease the joint and look for signs of movement or water.
- Once dry, a suitable sealant is applied and tooled.
- You get the cure time and our view on why the joint failed.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
Getting a quote
Want a quote for remedial sealant? Please ring 07833 053749 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before work begins.
Related advice
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Never seal over old silicone
- Look for stains below bathrooms now and then
- Find out why the sealant failed first
- Never fill a movement joint with mortar or grout
If we’ve found a cause, such as a loose tray or a leaking waste, get it fixed, because the new sealant cannot hold back a problem underneath.
Do not keep resealing the same joint. Have someone find out why, or the next bead will go the same way.
Honest limits
We’d rather tell you now than do work that won’t last, so these are the limits:
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- A tray or worktop that needs refixing first
If in doubt, call 07833 053749 or send us an email and we will say what we think before you book.
Where we work in Havering-atte-Bower
- Botched or over-sealed joints
- Expansion joints
- Failed movement joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Leaking tray & enclosure joints
What affects the quote in Havering-atte-Bower
Jobs vary more than people expect. What affects the quote:
- Which sealant suits the joint
- The size of the job
- Working hours on commercial sites
- Whether there’s mould to deal with
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 07833 053749 or email us and we will talk you through it.
What we need to know
You do not need to know the technical terms. Just tell us:
- How we’d reach the joints
- The problem you’ve noticed
- Where the job is, and your postcode
- Photos by email, if that’s easy
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Towns and villages near Havering-atte-Bower
More services for Havering-atte-Bower
Different surfaces, different methods
Over-sealed & botched joints
A thick bead smeared across tiles often hides mould or gaps. We strip it back so we can see the joint.
Leaking trays & enclosures
Repeat shower leaks often come from a tray that flexes or an enclosure sealed in the wrong place. We check both before any new sealant goes on.
When to call us in Havering-atte-Bower
All sealant wears out eventually. Mould grows into the silicone, the surface hardens and the bead shrinks, faster where ventilation is poor. Then the only fix is removal and a new bead.
Look out for any of the following:
- Over-sealed joints coming away
- Decorators’ caulk around a bath or shower
- Wide, uneven beads that look worse than the old ones
- Sealant that came away because the surface wasn’t prepared
Managing a site like Dame Tipping Church of England Primary School? Then we reseal washrooms and kitchens in schools and businesses as well as homes.
Before booking anyone
- When the joint can take water or movement
- Is the old sealant removed completely?
- Whether VAT is included
- How hidden problems are handled