Essex · England

External Mastic in Great Braxted

Specialist external mastic for Great Braxted: the right sealant, proper preparation and a neat finish. Call for a quick quote.

  • Plants rooting in failed movement joints
  • Water getting into walls through failed joints
  • Movement joints with cracked, split or missing sealant

Book external mastic in Great Braxted

External mastic in Great Braxted, done properly

We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing and we use one wherever it does. Common call-outs are for damp patches traced to an open external joint and failed sealant between panels on a façade, on render & cladding joints, concrete & block and copings & trims.

Outside joints can only be sealed when they’re dry, so work in Great Braxted is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.

You are covered for a year from the day we finish. If anything isn’t right with it, phone 0345 464 0079 or email us.

Place
Great Braxted (CM8)
Wider area
Essex
Guarantee
A year, on every job
Quote
Quoted before any work starts
Call
0345 464 0079
Updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

When it is not the sealant

We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:

  • Cracked brickwork or render that needs a builder or plasterer
  • Structural movement, which needs a surveyor or engineer
  • Damp from another source, such as a leaking gutter or a bridged damp-proof course

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

Surfaces we seal

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

Your questions about external mastic in Great Braxted

Do you cover Great Braxted for external mastic?

Yes, Great Braxted is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.

Can you help a landlord with a rental near Witham station?

Yes. We work for landlords and letting agents as well as homeowners. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.

Is it worth trying it myself?

Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.

Do you take out the old sealant first?

Yes. All of the old material is cut out and the joint cleaned before applying anything new.

What is backing rod for?

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.

Is there a guarantee?

Yes, for a year. If anything is not right with the work within the year, let us know and we will sort it.

How long does the job take?

A typical job takes anything from a few hours to several days, depending on the building, including preparation and clearing up. We’ll confirm how long when we quote.

Do you hold any approvals?

Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.

DIY sealant or a professional job?

The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

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.

Work for landlords, hotels and businesses

For anyone letting property in or around Great Braxted, several properties can be quoted together. Just tell us the addresses and what each one needs, 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.

What the job involves on each surface

Cladding and façade panels

If the façade has a specified sealant, that is what we use, or one the system allows. Send us any details you have about the façade.

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.

Walls and rooflines in Great Braxted

The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Layer Marney Tower (about 4.7 miles north-east) are a reminder that the area around Great Braxted 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.

For landlords with property near Witham station, outside joints that have cracked can let damp into a rental, so check them between lets. For an older house near a landmark such as Church of All Saints, older walls, gutters and the joints where extensions meet them need a flexible sealant.

Great Braxted is about 3 miles east of Witham, in Essex. If you need external mastic in Great Braxted, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We’re based in Crawley and cover Essex. We cover 644 towns and villages across Essex, large and small. For nearby work, see our Chelmsford page (10 miles or so).

Our applicators cover all of CM8 for external mastic. Streets in the area include Bung Row and Tiptree Road, all of which we cover. Nearby, we also carry out external mastic in Beacon Hill (1 mile south-west), Great Totham (2 miles south), Wickham Bishops (2 miles south-west), Broad Street Green (3 miles south) and Langford (3 miles south-west). We also work in nearby towns such as Colchester (11 miles north-east), Chelmsford (10 miles south-west), Braintree (8 miles north-west), Maldon (5 miles south), Rayleigh (15 miles south) and Witham (3 miles west).

What’s near Great Braxted

Locally, jobs take us to homes and businesses close to The Green Man pub and Whet Mead. For rail, the closest station is Witham station, roughly 2.6 miles west of the centre. Well-known places in the area include Anchor Press Museum (2.7 miles north-east). For a walk, there’s Shut Heath Wood.

Map of Great Braxted © OpenStreetMap contributors

How to look after the new joints

After the cure time, these simple habits help:

  • Keep soil, plants and ivy away from the joints
  • Avoid pressure-washing directly into sealant joints
  • Make sure movement joints aren’t pointed over
  • Leave the joints unpainted unless we have said otherwise

Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.

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

Why act early in Great Braxted

A failed movement joint lets water into the wall. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Around Great Braxted, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we will explain what it covers.

Why us?

  • We leave the area clean and tidy
  • Fully insured
  • More than 20 years in sealant work
  • An ARBOMaster approved applicator

Read what affects the cost or what customers say.

What we do, step by step

The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take a few hours to a few days, depending on the length of joint and the access, and we explain the cure time before we leave. In a small place like Great Braxted, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  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.

Preparing for the visit

  • Mention if the joints have been sealed before
  • Mention any leaks or damp you’ve noticed
  • On commercial sites, let us know about site rules

Get a quote

For external mastic in Great Braxted, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.

Get a price

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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