Surrey · England
External Mastic in Epsom
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Epsom. Fully insured, ARBOMaster approved and guaranteed for a year.
- Sealant pulling away from one side of the joint
- Hard, crazed mastic that has stopped moving
- Failed sealant between panels on a façade
External mastic in Epsom, done properly
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We take the old material out and do it properly. We’re often asked to deal with weathered mastic that no longer stretches and joints with sealant missing in places, on render & cladding joints, brickwork movement joints and concrete & block.
Epsom mixes older houses and their gutters with newer estates of brick, render and uPVC trims. Gutter joints, fascia trims and the movement joints in newer brickwork all need sealant that can flex.
Whatever the size of the job, it’s backed by our one-year guarantee in Epsom and across Surrey.
- Where
- Epsom (KT19, KT18, KT17)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What sealant work can’t fix
In fairness, some problems need a different trade:
- Rising or penetrating damp from elsewhere in the wall
- Cutting new joints into brickwork, which is building work rather than sealant work
- Structural movement, which needs a surveyor or engineer
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Joints and surfaces we work on
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
- Façade panels
Your questions about external mastic in Epsom
Do you work for landlords with property near Epsom station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Is external mastic in Epsom guaranteed?
All our work, in Epsom and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Do you work in Epsom?
Yes. We’re based in Crawley and work across South East England, London and Scotland.
Are you insured?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in.
Do you use backing rod?
Backing rod controls the sealant depth and keeps it off the back of the joint. Then the sealant bonds to two faces and can move.
Can you quote for more than one area?
Yes. Just list everything you need and you’ll get one quote.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Outside joints around Epsom
With historic houses such as Fitznells Manor (about 1.3 miles north-east) nearby, there’s older building stock in the area around Epsom as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Epsom station, split movement joints are easy to miss on a rental until damp shows inside.
Epsom is about 12 miles south of Kensington, in Surrey. Every kind of property in Epsom can book us for external mastic. The work is guaranteed for a year. Across Surrey, we cover 395 places, Epsom among them. You can also see our page for London, roughly 14 miles from Epsom.
Jobs for external mastic in KT19, KT18 and KT17 is quoted and booked the same way as anywhere else. You’ll find streets such as High Street, Upper High Street and Church Road, and we cover them all. Epsom sits on or near the A24 and B280, so getting to you is simple. Close by, we work in Ewell (1 mile north-east), North Looe (1 mile east), Horton (1 mile north-west), Epsom Downs (1 mile south-east) and Langley Vale (2 miles south). We also work in nearby towns such as Guildford (15 miles south-west), Woking (13 miles west), Horley (12 miles south), Redhill (8 miles south-east), Egham (14 miles north-west) and Reigate (7 miles south-east). As one of the bigger places in Surrey, Epsom has homes, rented property and businesses of every kind.
Around Epsom
In Epsom, that means homes and buildings near The Wellington Public House, Rosebery School and Epsom Common, among other places. There’s a railway station in Epsom itself: Epsom station. Nearby you’ll also find The Ashley Centre (less than half a mile south) and Cockney Museum (2.1 miles north-east). Open spaces near Epsom include The Lake and Bonesgate Open Space.
What the job involves on each surface
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. The old joint is removed and a sealant that bonds to both sides goes in.
Landlord and commercial work in Epsom
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.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Common problems we fix in Epsom
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
Any of these means the joints need attention:
- Sealant that has lost its bond to the brick or render
- Weeds or debris growing in open joints
- Cracked joints where brick meets render or frames
- Movement joints filled with mortar instead of sealant
For an older house near a landmark such as St. Barnabas Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before booking
- What the cure time is
- What preparation is included
- Is VAT in the price?
- Who turns up on the day
What happens on the day
At the end, we look at the finished work together. The visit itself normally takes a few hours for a handful of joints, longer for a whole elevation, depending on how much there is to do. A visit in Epsom needs access to the work and a place to park close by. If the job is outside, mention gates, side access and anything above ground floor.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Tell us about any water getting in
- Plan for the work area to be out of bounds to pets and children
- Let us know about earlier repairs to the joints
Ask for a quote
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To get started, call 0345 464 0079 or send us an email.
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Quotes for external mastic in Epsom
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The number and length of the joints
- The type of sealant required
- Whether there’s mould to deal with
- Whether the work is at height
Combining jobs into one visit normally makes better use of the time than several visits. We’ll give you a clear quote for the lot.
What to tell us for a quote
When you call or email, it’s useful to know:
- The address or postcode of the job
- Roughly how big the job is
- If someone has resealed it before
- Access, such as stairs, a lift or height
To get a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.