East Sussex · England

Brownbread Street External Mastic

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

  • Gaps where render, brick and frames meet
  • Brick movement joints where the sealant has split
  • Movement joints filled with mortar instead of sealant

External mastic near Brownbread Street

How to look after the new joints

Looking after new joints is easy:

  • Show decorators and builders where the movement joints are
  • Keep water from gutters off the wall
  • Avoid pressure-washing directly into sealant joints
  • Make sure movement joints aren’t pointed over

Only paint over the joint if we have confirmed the sealant can take paint. Paint can crack on a flexible joint, and paint can crack as the joint moves.

An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.

About our external mastic in Brownbread Street

As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing and we use one wherever it does. We work on joints between brick and frames, render & cladding joints and façade panels, and common reasons people get in touch are sealant pulling away from one side of the joint and weeds or debris growing in open joints.

Somewhere as small as Brownbread Street, 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.

A one-year guarantee comes as standard.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Location
Brownbread Street (TN33)
Wider area
East Sussex
Cover
12 months on all our work
Quotes
Quoted before any work starts
Phone
0345 464 0079
Page updated
26 October 2026

The process

At the end, we look at the finished work together 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 size of the job. Somewhere like Brownbread Street needs a little journey planning: 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. First, the joints are inspected and the access agreed.
  2. Every bit of old sealant and any mortar or debris is cut out.
  3. Joint faces are cleaned back and primed if the sealant needs it.
  4. Backing rod sized to the joint goes in to set the depth.
  5. We apply the sealant, tool it and check the whole run.

Before we arrive

  • For business premises, tell us about site rules or sign-in
  • Clear the area around the work
  • Let us know about earlier repairs to the joints

Get a quote

For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and give you a clear quote.

Get a quick quote

Read more

What external mastic looks like in Brownbread Street

London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Homes close to Parish Church of St Peter include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.

Brownbread Street is about 6 miles north-west of Bexhill-on-Sea, in East Sussex. Our applicators cover external mastic for householders, landlords and businesses in Brownbread Street and the surrounding area, as part of our work across East Sussex. Brownbread Street is one of 289 towns and villages in East Sussex we cover. There’s also a page for Brighton, roughly 23 miles from Brownbread Street.

Postcode districts we cover here for external mastic: TN33. Neighbouring places we cover for external mastic include Ashburnham (1 mile east), The Pound (1 mile south-east), Bodle Street Green (2 miles west), Wood's Corner (3 miles north) and Dallington (3 miles north-west). Within a short drive, we also cover Eastbourne (10 miles south-west), Hastings (8 miles east), Bexhill-on-Sea (6 miles south-east), Seaford (15 miles south-west), Hailsham (6 miles south-west) and Crowborough (13 miles north-west).

Local landmarks in Brownbread Street

Locally, jobs take us to homes and businesses close to The Ash Tree Inn and Ashburnham Park. The nearest railway station is Battle station, about 4.9 miles east of the centre. A little further out are Amberstone Hospital (5.2 miles south-west) and Old Castle (2.8 miles north-west). Green spaces nearby include Senlac Hill.

Map of Brownbread Street © OpenStreetMap contributors

What we’re called out for in Brownbread Street

The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, so it pulls away from the edges.

Common reasons people contact us are:

  • Panel joints letting water in
  • Sealant that has lost its bond to the brick or render
  • Hard, crazed mastic that has stopped moving
  • Gaps where render, brick and frames meet

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

Before you book anyone

  • How long the guarantee is
  • Which colour the sealant will be
  • Whether they seal over old material or remove it
  • What the quote includes, VAT included or not

Our hiring checklist

Why it’s worth doing now in Brownbread Street

A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Where a wall is exposed, as many are in small places like Brownbread Street, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Call for a quick quote and we will go through it with you.

Why Brownbread Street clients choose us

  • Trusted Arbo and Everbuild sealants
  • We are fully insured
  • Every job guaranteed for a year
  • An ARBOMaster approved applicator

Read what affects the cost and our reviews.

Should I try it myself first?

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.

What the job involves on each surface

Joints between dissimilar materials

Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.

Brickwork movement joints

Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so its sealant has to stay flexible.

Common questions in Brownbread Street

Can you do external mastic in Brownbread Street?

Yes. We work across London and the South East, and Brownbread Street is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.

Is Brownbread Street within the area you cover?

Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

What sealant do you use?

It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.

Can you seal joints between render and window frames?

Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.

I rent my home. Can I book you?

Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.

Will the old sealant be removed?

Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.

Is it OK to seal over old sealant?

No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.

Can I do 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.

For landlords and businesses

If you manage several properties in or around Brownbread Street, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.

We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured for the work.

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