Greater London · England
Remedial Sealant in Avery Hill
Remedial sealant for Avery Hill, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Decorators’ caulk around a bath or shower
- Repeat leaks from the same joint
- Thick, messy sealant smeared over tiles
About our remedial sealant in Avery Hill
With more than 20 years’ experience, our applicators have seen most of the ways sealant can fail. We’re ARBOMaster approved and fully insured, and remedial work carries our one-year guarantee. If you have caulk or the wrong sealant used in a wet area and kitchen joints letting water behind the worktop, we can help, on botched or over-sealed joints, mouldy bath & shower sealant and failed movement joints alike.
London homes include a lot of flats, conversions and mansion blocks, and many bathrooms sit right above someone else’s ceiling. In Avery Hill, that is a good reason to put tired sealant and grout right early.
A one-year guarantee comes as standard, so you’re not left on your own once the job is done.
- Place
- Avery Hill (SE9, DA15, DA16)
- Region
- Greater London
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Landlords, agents and businesses in Avery Hill
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
How the job changes by surface
Movement & expansion joints
A movement joint must be able to stretch. We remove the failed sealant, fit backing and reseal.
Windows & doors
Wrong-coloured or messy mastic can be replaced for appearance too, matched to the frame colour.
Common problems we fix in Avery Hill
Water from somewhere else can ruin a good seal. A slow leak behind the tiles soaks the joint from the back, so the silicone goes mouldy or lets go.
Keep an eye out for any of the following:
- Sealant that came away because the surface wasn’t prepared
- Smears and lumps from a botched reseal
- Sealant applied over old sealant that has lifted
- Movement joints that have split or pulled away
Rented homes near Falconwood station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Questions to ask before booking
- The length of the guarantee
- Who turns up on the day
- Whether all the old sealant comes out first
- How the colour is chosen
Quotes for remedial sealant in Avery Hill
Every job gets its own quote. This is what makes a difference:
- The product the joint needs
- The old material and how stubborn it is
- Whether there’s mould to deal with
- Whether the work is at height
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Helping us quote
To help us quote quickly, let us know:
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work and give you a clear price.
Nearby places to Avery Hill
Other services in Avery Hill
The process
You do not need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the job takes a few hours for a typical bath or shower, longer where several layers have been applied for a typical job. In Avery Hill, 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.
- We start by checking the joint for movement, leaks and the reason it failed.
- We strip the joint completely, removing any layers below.
- The joint is cleaned, treated for mould and left to dry.
- Moving joints get backing and a flexible sealant to suit.
- Finally we finish the joint and talk you through what we found.
Getting ready for the visit
- Tell us about any water getting in
- Mention if the joints have been sealed before
- Keep pets and children clear of the area while we work
Getting a quote
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
Related advice
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Avery Hill: your questions answered
Is parking a problem for a job in Avery Hill?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
Can worn sealant in a flat in Avery Hill cause a leak downstairs?
Yes. In a flat, water from a failed bath or shower seal has only one way to go, and that’s down. Cutting out the old sealant and laying a new bead early stops it getting that far.
Do you work for letting agents?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels in Avery Hill.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or send us an email.
Do you offer different sealant colours?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
Can you strip sealant from an acrylic tray safely?
Yes. We cut and lift the old sealant with tools suited to the surface, then clean off the residue. We point out any damage that is already there.
What if resealing will not fix my leak?
In that case, we tell you what we have found. A plumber or fitter may be needed before any new sealant goes on.
What does remedial sealant cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
Remedial sealant in Avery Hill: 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 has hard water, which leaves limescale on sealant, grout and taps.
For site and facilities teams at buildings such as Stationers' Crown Woods Academy, washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes. In the older streets around Church of Holy Trinity, walls and floors in older homes can move, and sealant and grout show it first.
Avery Hill is about 1 mile north-east of Eltham, in Greater London. Avery Hill gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Greater London coverage runs to 764 places, and Avery Hill is one of them. Our London page covers work nearby, about 8 miles away.
Work in SE9, DA15 and DA16 is quoted and booked the same way as anywhere else. Streets in the area include Bexley Road, Glenure Road and Perpins Road, and we cover them all. Main roads around Avery Hill include the A210, which makes travel easy. If you are just outside Avery Hill, we cover Blackfen (1 mile east), Eltham (1 mile south-west), New Eltham (1 mile south), Falconwood (1 mile north-east) and Well Hall (1 mile west). Larger places within reach include London (8 miles north-west), City of Westminster (11 miles north-west), Marylebone (11 miles north-west), Kensington (12 miles west), St Pancras (10 miles north-west) and Shoreditch (8 miles north-west).
Local landmarks in Avery Hill
Around Avery Hill, our work takes us to homes and buildings near Shoulder of Mutton Green and Alderwood Primary School and the streets around them. Avery Hill’s nearest station is Falconwood station, about 0.6 miles north. A little further out are Greenwich Castle (3.8 miles north-west) and Metropolitan Police Museum (1.7 miles south-east). Open spaces near Avery Hill include Summer Hill and The Tarn.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Report a tray that rocks or a worktop that lifts
- Act on a lifting corner straight away
- Never seal over old silicone
- Get the cause of a repeat leak found before resealing
Do not let anyone seal over it later. New silicone doesn’t bond to old.
Signs to act on: peeling layers, mould showing through the bead, leaks after showering or cracks in a movement joint. Any of them means it’s time for remedial work.