Greater London · England
Remedial Sealant in Brentford
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Brentford and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps opening along the back of the worktop
- Sealant applied over old sealant that has lifted
- Decorators’ caulk around a bath or shower
Remedial sealant in Brentford
The wrong product in the wrong joint fails however neatly it’s applied. We take it out and use a sealant made for that joint. Common call-outs are for movement joints that have split or pulled away and over-sealed joints coming away, on expansion joints, mouldy bath & shower sealant and botched or over-sealed joints.
London homes include a lot of flats, conversions and mansion blocks, so a bathroom is often directly above a neighbour’s ceiling. That makes worn sealant and cracked grout in Brentford more than a cosmetic job.
Your job is guaranteed for a year, as with all our work.
- Place
- Brentford (TW8, W3, W4, W5)
- Region
- Greater London
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Questions from Brentford
Can you help a landlord with a rental near Brentford station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Do you take on hotel work around Brentford?
Yes. Hotel and guest-house work is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
Can you fix a reseal that hasn’t worked?
Yes. Repeat leaks normally come from over-sealing, movement or water getting in elsewhere, and we deal with the cause first.
How do I get a quote for remedial sealant in Brentford?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or drop us an email and let us know what needs doing and where.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
How long before the joint can be used?
It depends on the product and the conditions. Before we leave, we’ll tell you the cure time.
Do you fix expansion and movement joints?
Yes. The depth is set with backing so the sealant only bonds to the two sides.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
What affects the cost of remedial sealant
There’s no set price list. What we look at:
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- Which sealant suits the joint
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- Where the property is
- The type of property
- Whether it has been sealed before
- What’s wrong with the joints now
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Landlord and commercial work in Brentford
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.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
Towns and villages near Brentford
Also in Brentford
Surface by surface
Leaking trays & enclosures
A shower that leaks after resealing often has a tray that moves or an enclosure sealed on the wrong side. Both are checked before we reseal.
Worktops & kitchens
Old kitchen sealant pulls back from the wall over time. We strip it, degrease the joint and reseal colour-matched to the worktop.
What we cannot put right
To be straight with you, some problems need a different trade:
- Cracks in the fitting rather than the joint
- A tray or worktop that needs refixing first
- Water damage behind tiles that needs a tiler
If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Surfaces we seal
- Expansion joints
- Shrunken worktop sealant
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Failed movement joints
- Botched or over-sealed joints
The process
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours for most joints, depending on how much old sealant has to come out and we leave things clean and tidy. For a job in Brentford, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We protect the surfaces around the joint.
- The botched or failed sealant is cut away completely.
- The joint is degreased and checked for movement and leaks.
- New sealant goes in once the joint is dry, and is tooled smooth.
- You get the cure time and our view on why the joint failed.
How to prepare
- Tell us about any water getting in
- Tell us about any previous sealing or DIY attempts
- Keep children and pets away from the work area
Get a quote
Need a quote? Please ring 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Don’t point over movement joints
- Keep an eye on the ceiling below the bathroom
- Find out why the sealant failed first
- Have loose fittings fixed before resealing
Leave the new joint to cure fully before it gets wet or moves: usually around 24 hours, or as long as we advise.
A failing joint rarely gets better on its own. Each use pushes more water behind the bead, into whatever is behind or below. Early action keeps it to a sealant job.
Remedial sealant around Brentford
There are hotels and other places to stay in and around Brentford. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room. 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.
For landlords with property near Brentford station, botched sealant from a previous quick fix is easier to strip out between tenants. Homes close to Congregational Church include some older properties, and older homes can move a little, which is hard on rigid grout and tired sealant. For site and facilities teams at buildings such as St Paul's CofE Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Brentford is about 2 miles south of Ealing, in Greater London. If you need remedial sealant in Brentford, please phone 0345 464 0079 or drop us an email for a quick quote. We cover Greater London from our Crawley base, Brentford included. Brentford is one of 764 places in Greater London we cover. There’s also a page for London, about 9 miles away.
Work in TW8, W3, W4 and W5 works the same way as everywhere else we cover. Whether your property is on High Street, Market Place and New Road or anywhere close by, our applicators can take on the job. You will find Brentford on the A4 and A315, which makes it straightforward to reach. Neighbouring places we cover for remedial sealant include Brentford End (1 mile south-west), Northfields (1 mile north-west), Gillette Corner (1 mile west), Isleworth (2 miles south-west) and Spring Grove (2 miles west). Within a short drive, we also cover London (9 miles east), City of Westminster (7 miles east), Marylebone (7 miles east), Kensington (4 miles east), St Pancras (8 miles east) and Shoreditch (10 miles east).
Near you in Brentford
Around Brentford, our work takes us to homes and buildings near Library for Iranian Studies, Brentford School for Girls and Kew College Prep and the streets around them. Nearby too are The Brook pub (within half a mile south-west) and Kew Green (0.7 miles south-east). There’s a railway station in Brentford itself: Brentford station. Other landmarks nearby include Treaty Centre (3 miles south-west) and Musical Museum (0.5 miles east). Open spaces near Brentford include Kew Gardens Lake and Long Wood.
What happens if it’s left?
Another bead over the top won’t fix a failed joint. It does not grip the old layer, leaving the leak in place and one more layer to cut out later. 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 Brentford, the repair is bigger than the sealant job would have been.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before work begins, so you know where you stand.
Why Brentford clients choose us
- Trusted Arbo and Everbuild sealants
- Old sealant always removed completely
- We agree the colour with you first
- Every job guaranteed for a year
Read our cost guide and what customers say.