Surrey · England
Remedial sealant & repairs in Cobham, Surrey
We cover Cobham for removing failed, mouldy or leaking sealant and putting it right. Old material cut out, joints cleaned and sealed neatly.
- Kitchen joints letting water behind the worktop
- Smears and lumps from a botched reseal
- Sealant peeling off a dusty or damp surface
About our remedial sealant in Cobham
Decorators’ caulk in a shower, bathroom silicone on a window, a rigid filler in a movement joint won’t last, however tidy it looks. Out it comes, and in goes a sealant suited to the job. If you have floor or wall movement joints that have failed and caulk or the wrong sealant used in a wet area, we can help, on expansion joints, leaking tray & enclosure joints and mouldy bath & shower sealant alike.
Homes around Cobham range from older cottages to more recent houses. In older homes, walls and floors can move a little more, so the right flexible sealant matters.
Your job is guaranteed for a year, as with all our work.
- Location
- Cobham (KT11)
- Region
- Surrey
- Cover
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What we do, step by step
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours, depending on how many layers have to come out. Parking around Cobham is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We start by checking the joint for movement, leaks and the reason it failed.
- Every layer of old sealant is cut and cleaned out.
- Next, any mould is treated and the joint dried.
- Moving joints get backing and a flexible sealant to suit.
- We tool the joint and tell you about anything else that needs attention.
Preparing for the visit
- Clear items away from the joints we’re working on
- Mention any tricky access
- Keep pets and children clear of the area while we work
How to get a quote
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To arrange one, call 0345 464 0079 or send us an email.
Related advice
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Landlord and commercial work in Cobham
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Letting agents and landlords in Cobham can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Remedial sealant around Cobham
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you live in an older home near Church of St Andrew, walls and floors in older homes can move, and sealant and grout show it first. If you let a flat or house near Cobham & Stoke Dabernon station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Cobham is about 6 miles west of Epsom, in Surrey. We provide remedial sealant to homes and businesses in Cobham and nearby, as part of our work across Surrey. Our Surrey coverage runs to 395 places, and Cobham is one of them. There’s also a page for London, roughly 17 miles from Cobham.
Jobs for remedial sealant in KT11 works the same way as everywhere else we cover. Local streets include High Street, Summerhays and Fairfield Park. Neighbouring places we cover for remedial sealant include Stoke D'Abernon (1 mile south-east), Oxshott (2 miles east), West End (2 miles north), Pachesham Park (3 miles east) and Esher (3 miles north-east). Further out, we also cover Guildford (10 miles south-west), Woking (8 miles west), Camberley (14 miles west), Epsom (6 miles east), Horley (15 miles south-east) and Redhill (12 miles south-east).
Near you in Cobham
Around Cobham, our work takes us to homes and buildings near The Running Mare pub and West End Common and the streets around them. For rail, the closest station is Cobham & Stoke Dabernon station, about 1.1 miles south of the centre. Nearby you’ll also find Elmbridge Museum (3 miles north-east) and Chessington Castle Hill (4.9 miles east). For a walk, there’s Jubilee Wood and Claremont Lake.
Cobham questions
Can you help a landlord with a rental near Cobham & Stoke Dabernon station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Is Cobham in your area for remedial sealant?
Yes, Cobham is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
My shower still leaks after a reseal. Can you sort it?
Yes. We’ll take all the sealant out, look for why it failed and reseal it properly.
Where do you work from?
We work from Crawley. We cover Cobham and the rest of Surrey.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected.
How long before the joint can be used?
It depends on the product and the temperature. We tell you how long to leave it before we go.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
How to look after the new joints
A little care helps the new joints last. We recommend:
- Have loose fittings fixed before resealing
- Deal with small splits early
- Check ceilings under showers for marks
- Do not add new sealant on top of old
Ventilation keeps mould away from the new bead: use the extractor or open a window after showering.
If a joint has failed more than once, stop resealing it. Have someone find out why, or the next bead will go the same way.
Nearby places to Cobham
What else we do in Cobham
Different surfaces, different methods
Windows & doors
Failed frame mastic is often hard, cracked and in several layers. We remove it all and clean back to sound surfaces before backing and resealing.
Movement & expansion joints
Movement joints in floors, walls and façades need a flexible sealant set to the right depth. Failed sealant is cut out, backing rod or tape is fitted and the joint resealed with a low-modulus product.
Signs you need remedial sealant in Cobham
Sealant needs a clean, dry surface with no grease on it. Residue, moisture or dust left in the joint weaken the bond, so it starts lifting sooner than it should.
Signs it’s time to call us include:
- A second bead peeling off the first
- Products that weren’t meant for the joint
- Kitchen joints letting water behind the worktop
- Wide, uneven beads that look worse than the old ones
If you look after a building such as St Andrew's CofE Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
What your quote should include
- How the surfaces are prepared before sealing
- How much experience the applicator has
- The length of the guarantee
- What the quote includes, VAT included or not
What happens if it’s left?
Adding more sealant is the usual quick fix, and it rarely works. It can’t bond to what’s underneath, so the leak carries on and there’s now more to remove. Around Cobham, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why choose Mr Mastic in Cobham
- Quality sealants from Arbo and Everbuild
- Any old sealant cut out fully, not covered over
- ARBOMaster approved applicator
- Colour picked to suit the job
Take a look at how sealant jobs are priced or our reviews.