Surrey · England

External & façade joints in Epsom Downs, Surrey

External mastic for Epsom Downs, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Rain getting behind render or cladding at a joint
  • Brick movement joints where the sealant has split
  • Hard, crazed mastic that has stopped moving

External mastic near Epsom Downs

Should I try it myself first?

If you’re 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.

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.

External mastic in Epsom Downs, done properly

Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where mortar or filler would crack. We are often asked to deal with hard, crazed mastic that has stopped moving and failed sealant between panels on a façade, across façade panels, concrete & block and joints between brick and frames.

Somewhere as small as Epsom Downs, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.

Our work is backed for twelve months, in Epsom Downs and everywhere else we cover.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Where
Epsom Downs (KT17)
Wider area
Surrey
Cover
One year on every job
Quote
A clear quote up front
Phone
0345 464 0079
Page updated
26 October 2026

Quotes for external mastic in Epsom Downs

Call for a quick quote. What matters most is:

  • Mould in or behind the old joints
  • How many areas need sealing
  • The old material and how stubborn it is
  • The product the joint needs

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.

Asking for a quote

You don’t need to know the technical terms. It helps if you can tell us:

  • Where the job is, and your postcode
  • A few pictures by email, if you can
  • Any previous sealing or DIY work
  • What’s wrong with the joints now

Every job is quoted individually. Just phone 0345 464 0079 or drop us an email with the details.

When it is not the sealant

Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:

  • Adding movement joints to masonry that has none
  • Damp from another source, such as a leaking gutter or a bridged damp-proof course
  • Cracking across the wall rather than at a joint

If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.

What we seal

  • Façade panels
  • Concrete & block
  • Joints between brick and frames
  • Copings & trims
  • Brickwork movement joints
  • Render & cladding joints

How the job changes by surface

Concrete and blockwork

The face of concrete or block is often dusty, so cleaning and priming matter. A primer goes on where the product requires one before sealing.

Render joints

Rendered walls have joints at beads, openings and changes of material. They’re resealed in a sealant that suits the render.

External mastic in Epsom Downs: local notes

London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Fitznells Manor (about 2.1 miles north) are a reminder that the area around Epsom Downs has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.

Homes close to Parish Church of St Martin include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. If you let a flat or house near Epsom Downs station, split movement joints are easy to miss on a rental until damp shows inside.

Epsom Downs is about 1 mile south-east of Epsom, in Surrey. Our applicators cover external mastic for homes and businesses in Epsom Downs and the surrounding area. Epsom Downs is one of 395 towns and villages in Surrey we cover for external mastic. You can also see our page for London, roughly 14 miles from Epsom Downs.

Here we cover the KT17 postcode area for external mastic. Streets in the area include Longdown Lane South, Bunbury Way and Burgh Heath Road, and we cover them all. Other places close to Epsom Downs include Nork (1 mile east), North Looe (1 mile north), Great Burgh (1 mile south-east), Tattenham Corner (1 mile south) and Langley Vale (1 mile south-west). Within a short drive, we also cover Guildford (15 miles west), Woking (14 miles west), Horley (10 miles south), Redhill (7 miles south-east), Egham (15 miles north-west) and Reigate (6 miles south).

Landmarks near Epsom Downs

Around Epsom Downs, our work takes us to homes and buildings near Laine Theatre Arts, Priest Hill and Derby Arms and the streets around them. There’s a railway station in Epsom Downs itself: Epsom Downs station. Other landmarks nearby include Epsom General Hospital (1.3 miles west) and The Ashley Centre (1.3 miles north-west). The countryside around Epsom Downs includes Colley Hill and Cuddington Meadows.

Map of Epsom Downs © OpenStreetMap contributors

Looking after it afterwards

Aftercare is simple, and it makes a real difference:

  • Get split or bare joints resealed while the damage is small
  • Do not let climbing plants root in the sealant
  • Keep water from gutters off the wall
  • Look over the joints every year, ideally after winter

Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead.

Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established.

The process

Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours to a few days, depending on the length of joint and the access, depending on the amount of work. For a village or hamlet like Epsom Downs, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We inspect the joints and agree which need resealing and how they’ll be reached.
  2. Old sealant and any debris are cut and raked out.
  3. Both sides are cleaned back to sound material and primed if needed.
  4. We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
  5. We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.

Preparing for the visit

  • Tell us about any water getting in
  • Let us know about stairs, lifts or work at height
  • Tell us if parking is tricky

Getting a quote

To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. We will give you a clear price before any work starts.

Ask for a quote

Advice

Do you need external mastic in Epsom Downs?

Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.

Signs it’s time to call us include:

  • Joints pointed up with cement by mistake
  • Sealant pulling away from one side of the joint
  • Failed sealant between panels on a façade
  • Cracked joints where brick meets render or frames

Managing a site like Warren Mead Infant School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

Questions to ask before you book

  • Whether all the old sealant comes out first
  • Whether VAT is included
  • How long to leave it before use
  • How long the guarantee is

How to choose a mastic man

FAQs for Epsom Downs

Can you do external mastic in Epsom Downs?

Yes. Our work covers London and the South East, and Epsom Downs is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear price.

Can you help a landlord with a rental near Epsom Downs station?

Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.

Can you seal joints between two different materials?

Yes. Where different materials meet is one of the most common joints we seal. The sealant is chosen to bond to both sides with primer where required.

How long should I leave it?

That depends on the sealant used, so follow the cure time we give you when we finish.

Should I try DIY first?

Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.

Why is there a gap in my brick wall?

Walls move with heat, cold and moisture, so long walls have planned gaps to take that movement. The gap is sealed with a flexible sealant over backing rod.

Is there a guarantee?

Yes, always. There’s a 12-month guarantee on every job, large or small.

How do I get a quote for external mastic in Epsom Downs?

The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job