Surrey · England
The Chart Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right in The Chart, with a 12-month guarantee on every job. Ask us for a quote.
- Smears and lumps from a botched reseal
- Movement joints that have split or pulled away
- Mould trapped under a layer of silicone
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Check ceilings under showers for marks
- Keep bleach and abrasives off the bead
- Have loose fittings fixed before resealing
- Find out why the sealant failed first
Go easy on the new sealant: a mild cleaner and a soft cloth, with no blades or scourers.
A split movement joint lets rain into walls and floors, and left long enough, the edges of the joint can crumble. A joint with sound edges is far easier to reseal.
About our remedial sealant in The Chart
Not every leak is a sealant leak. Cracked trays, leaking wastes and faulty valves often look like a sealant problem. When the fault is elsewhere, we say so instead of resealing for the sake of it. If you have a second bead peeling off the first and leaks that keep coming back after resealing, we can put it right.
For a small place like The Chart, remedial sealant is planned like any other job: the journey and access are simply agreed in advance. In the bathroom or kitchen, the work is the same as in any town.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- The Chart (RH8)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the cost of remedial sealant
The price is agreed before any work begins. It’s based on:
- The old material and how stubborn it is
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- The type of sealant required
Doing several joints on one visit usually makes better use of the time than several visits. You will get one clear quote for the whole job.
What we need to know
To make quoting easier, let us know:
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
- Where the property is
- Pictures of the joints, sent by email
Want a quote for remedial sealant? Please ring 0345 464 0079 or email us with a few details. We’ll explain what we’d do and send you a clear quote before work begins.
The Chart homes and their sealant
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings.
Schools such as Limpsfield CofE Infant School are buildings too, and its toilets, changing areas and kitchens need their sealant renewed like any other building’s. If you let a flat or house near Hurst Green station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
The Chart is about 6 miles south-east of Caterham, in Surrey. From the centre of The Chart to the outskirts, remedial sealant is available for homes and businesses alike, from flats and houses to offices and hotels. 395 places in Surrey are on our list. We also work in Crawley, around 14 miles away.
Every address in RH8 is covered for remedial sealant, from the main roads to the quietest streets. That includes homes and businesses on Stoneleigh Road, St Andrews Way and Ridlands Lane. We also cover the places around The Chart: Pains-Hill (1 mile west), Moorhouse Bank (1 mile north-east), Goodley Stock (1 mile east), Limpsfield (1 mile north-west) and Crockham Hill (1 mile south-east). We also work in nearby towns such as Epsom (15 miles north-west), Horley (10 miles south-west), Redhill (9 miles west), Ewell (15 miles north-west), Reigate (10 miles west) and Caterham (6 miles north-west).
Around The Chart
In The Chart, that means homes and buildings near Carpenters Arms, Oxted School and Hazelwood School, among other places. The closest station to The Chart is Hurst Green station, roughly 1.6 miles west. Nearby you’ll also find Tandridge Priory (0.6 miles north-west). Open spaces near The Chart include Botley Hill and Bay Pond.
Leave it or put it right?
Spraying mould remover on a sealed-over joint does not reach what’s underneath. Removal is the only way to get at it. In a small place like The Chart, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why book with us
- Over 20 years’ experience
- Arbo and Everbuild products
- We leave the area clean and tidy
- We never seal over old sealant
Read our cost guide and customer reviews.
Honest limits
Before you book, it’s worth knowing the limits too:
- Older mastics that may need an asbestos check before removal
- Movement from fittings that are not supported
- A cracked shower tray or bath (that needs repair or replacing)
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
Where we work in The Chart
- Mouldy bath & shower sealant
- Expansion joints
- Failed movement joints
- Leaking tray & enclosure joints
- Shrunken worktop sealant
- Botched or over-sealed joints
For landlords and businesses
Housing providers, facilities teams and property managers book us too in The Chart and across Surrey. Several sites can be quoted together, and we are fully insured.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
The Chart questions
Can you help a landlord with a rental near Hurst Green station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
Do you cover The Chart for remedial sealant?
Yes. Our work covers London and the South East, and The Chart is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Can you quote for more than one area?
Of course. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Where do you work from?
Mr Mastic is based in Crawley. We cover The Chart and the rest of Surrey, along with the rest of our area.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.
Towns and villages near The Chart
What else we do in The Chart
What we’re called out for in The Chart
Joint depth matters. Sealant packed too deep, or stuck to the back of the joint as well as the sides, cannot stretch, and tears at the first real movement. Backing rod or bond-breaker tape prevents it.
Any of these means the joints need attention:
- Thick, messy sealant smeared over tiles
- Kitchen joints letting water behind the worktop
- Mould trapped under a layer of silicone
- Sealant peeling off a dusty or damp surface
Homes close to St Andrew's include some older properties, and bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
What your quote should include
- How hidden problems are handled
- How the joint is cleaned and prepared
- Is VAT in the price?
- Who does the work, and how experienced they are
What we do, step by step
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a typical bath or shower, longer where several layers have been applied. In a small place like The Chart, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we work out whether the problem is the sealant, movement or a leak.
- Old beads and residue are removed down to clean surfaces.
- Mould is treated and the joint dried.
- The right product goes in, with backing where the joint moves.
- The joint is tooled and you are told about anything else we found.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we’re working on
- Try not to wet indoor joints just before the visit
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 will talk you through the work.