East Sussex · England

External & façade joints in Shortgate, East Sussex

Problem with your movement joints in Shortgate? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.

  • Plants rooting in failed movement joints
  • Damp patches traced to an open external joint
  • Cracked joints where brick meets render or frames

External mastic for Shortgate homes and businesses

External mastic in Shortgate: 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. With historic houses such as Glyndebourne (about 3.5 miles south-west) nearby, there’s older building stock in the area around Shortgate as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.

Glyndebourne, about 3.5 miles south-west, is one of the historic houses in the wider area around Shortgate, and older homes nearby need a sealant that suits their walls.

Shortgate is about 4 miles south of Uckfield, in East Sussex. For external mastic in and around Shortgate, please phone 0345 464 0079 or email us for a quick quote. We cover East Sussex from our Crawley base, Shortgate included. Shortgate is one of 289 places in East Sussex where we work for external mastic. You can also see our page for Brighton, roughly 12 miles from Shortgate.

Postcode districts we cover here for external mastic: BN8. We also cover Halland (1 mile north-east), East Hoathly (2 miles east), Whitesmith (2 miles east), Chiddingly (3 miles east) and Framfield (4 miles north). We also work in nearby towns such as Eastbourne (12 miles south-east), Seaford (10 miles south), Lewes (6 miles south-west), Hailsham (7 miles south-east), Crowborough (10 miles north) and Newhaven (9 miles south).

Near you in Shortgate

Shortgate’s nearest station is Uckfield station, roughly 3.9 miles north of the centre. Other landmarks nearby include Uckfield Community Hospital (3.6 miles north) and Tickerage Castle (4.1 miles north). Open spaces near Shortgate include Cliffe Hill and Malling Down.

Map of Shortgate © OpenStreetMap contributors

About our external mastic in Shortgate

External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing rarely last long. We take the old material out and do it properly. If you’re dealing with brick movement joints where the sealant has split and water getting into walls through failed joints, we can help.

Older homes in small places like Shortgate may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water generally gets in.

We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.

Location
Shortgate (BN8)
Wider area
East Sussex
Guarantee
One year on every job
Quotes
A clear price before we start
Phone
0345 464 0079
Updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

When something else is needed

New sealant cannot fix everything, and we’d rather say so up front. Sealant will not put right:

  • Adding movement joints to masonry that has none
  • Damp that is not coming from the joint
  • Cracks in the bricks or render themselves, away from the joints

If you’re not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.

What we seal

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

For landlords and businesses

For anyone letting property in or around Shortgate, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.

Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.

Why act early in Shortgate

Running new sealant over the old bead rarely lasts. New sealant does not bond well to old, weathered sealant, so we always take the old sealant out. Older cottages and farmhouses around Shortgate can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Combining jobs into one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.

Why book with us

  • Approved under the ARBOMaster scheme
  • White, clear, grey or another colour, product permitting
  • Tidy, careful work
  • A sealant colour to suit the surroundings

Take a look at what affects the cost and what customers say.

Quotes for external mastic in Shortgate

We quote each job individually. This is what makes a difference:

  • Which sealant suits the joint
  • Any working-time requirements on site
  • How easy the joints are to reach
  • The number of rooms or windows

A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.

Asking for a quote

There’s no need for technical detail. It helps if you can tell us:

  • Pictures of the joints, sent by email
  • How many joints, rooms or windows are involved
  • Whether it has been sealed before
  • Access, such as stairs, a lift or height

Want a quote for external mastic? Please ring 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.

Do you need external mastic in Shortgate?

Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.

People usually contact us after spotting something like this:

  • Cracked joints where brick meets render or frames
  • Joints where the bead has come unstuck
  • Failed sealant between panels on a façade
  • Joints pointed up with cement by mistake

If you let a flat or house near Uckfield station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.

Before you book anyone

  • Whether VAT is included
  • What insurance they hold
  • When the joint can take water or movement
  • Is the old sealant removed completely?

10 questions to ask before booking

Shortgate: your questions answered

Do you cover Shortgate for external mastic?

Yes, Shortgate is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.

Do you work for landlords with property near Uckfield station?

Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.

Do you hold any approvals?

Yes. We hold ARBOMaster approved applicator status, and we are fully insured.

Is it worth trying it myself?

Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

Do you work at height?

That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher ones, send details and we’ll confirm the access.

Does someone need to be in?

If the work is inside, we need someone to let us in. After that, you can carry on with your day.

Do you have insurance?

Yes. We are fully insured.

How long does the job take?

As a guide, most jobs take a few hours to a few days, depending on the length of joint and the access. Bigger jobs take longer.

How to look after the new joints

Aftercare is simple:

  • Check the sealant is paintable before painting near it
  • Act on the first splits you see
  • Walk round the building once a year and look at the joints
  • Show decorators and builders where the movement joints are

Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.

Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.

How the visit works

On the day, we start by going over the job with you. Surfaces next to the work are protected before we start. The work usually takes anything from a few hours to several days, depending on the building. Somewhere like Shortgate needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We look at every joint and agree a colour to suit the wall.
  2. We take out the old sealant until the faces are sound.
  3. Backing rod goes in so the sealant can stretch between the two faces.
  4. Primer is applied wherever the sealant needs it.
  5. We gun in low-modulus sealant and tool it neatly.

Preparing for the visit

  • On commercial sites, let us know about site rules
  • Let us know about parking restrictions
  • Where the joints are inside, avoid wetting them before we arrive

Getting a quote

For a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before work begins.

Get a quick quote

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