Kent · England

Golden Green External Mastic

Sealing brickwork movement joints, render, cladding and façade joints in Golden Green, with a one-year guarantee on every job. Ask us for a quote.

  • Sealant that has lost its bond to the brick or render
  • Brick movement joints where the sealant has split
  • Plants rooting in failed movement joints

Need external mastic in Golden Green?

What we do, step by step

We bring everything the job needs with us, so you don’t need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take anything from a few hours to several days, depending on the building. Somewhere as small as Golden Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First, the joints are inspected and the access agreed.
  2. We cut out the old mastic and rake out anything in the joint.
  3. The faces are brushed clean and primed where the product requires 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

  • Tell us about any water getting in
  • Keep pets and children clear of the area while we work
  • For indoor joints, keep the area dry beforehand if you can

How to get a quote

Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or drop us an email with the details.

Ask for a quote

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External mastic for homes and businesses in Golden Green

Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We strip the joint back and start again. If you have sealant that has lost its bond to the brick or render and weeds or debris growing in open joints, we can put it right, whatever the surface.

Around Golden Green, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually gets in.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

Mr Mastic applicators lined up beside the company vans, one holding a sealant gun
Where
Golden Green (TN11)
Wider area
Kent
Guarantee
A year, on every job
Quotes
A clear price before any work starts
Call
0345 464 0079
Last updated
26 October 2026

Why deal with it now?

Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. In a small place like Golden Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.

Why Golden Green customers choose us

  • We agree the colour with you first
  • Sanitary silicone with an anti-fungal additive in wet areas
  • A sealant colour to suit the surroundings
  • A 12-month guarantee on all work

Take a look at our cost guide and what customers say.

Work for landlords, hotels and businesses

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.

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

Should I try it myself first?

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

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.

Common questions in Golden Green

Do you cover Golden Green for external mastic?

Yes. Our work covers London and the South East, and Golden Green is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we will send you a clear quote.

Will you come out to Golden Green?

Yes, Golden Green is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

What should I tell you?

Just the basics: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or drop us an email.

Is it worth trying it myself?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

Can you quote for more than one area?

Yes. Tell us about everything you’d like done and we’ll quote it together.

Can landlords and businesses book you?

Yes. Domestic, commercial and hotel work are all part of what we do, and we are fully insured.

Should I point up the gap in my brickwork?

No. Mortar locks the joint solid, so the wall cracks somewhere else instead. Use a flexible sealant with backing rod.

Why do you put foam in the joint first?

That’s backing rod, a closed-cell foam. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.

Different surfaces, different methods

Brickwork movement joints

Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod in a colour to suit the brick.

Cladding and façade panels

Where a cladding system has its own specified sealant, we follow it or an approved alternative. Send us any details you have about the façade.

Honest limits

In fairness, there are a few things sealant won’t fix:

  • Loose or hollow render, which needs re-rendering
  • Subsidence or other structural problems
  • Cracked brickwork or render that needs a builder or plasterer

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before booking.

What we seal

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

Looking after it afterwards

A little care helps the new joints last. Our advice:

  • Walk round the building once a year and look at the joints
  • Keep movement joints as flexible joints, not mortar
  • Tell anyone working on the walls about the movement joints
  • Wash walls gently around the sealant

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

If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.

What external mastic looks like in Golden Green

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. With historic houses such as Old Soar Manor (about 3.8 miles north) nearby, there’s older building stock in the area around Golden Green as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.

For landlords with property near Beltring station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you live in an older home near Golden Green Mission Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you look after a building such as Hadlow Primary School, larger buildings have long runs of movement joint that eventually need resealing.

Golden Green is about 3 miles east of Tonbridge, in Kent. Jobs in Golden Green get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Golden Green is one of 922 towns and villages in Kent where we work. You can also see our page for Crawley, about 24 miles away.

We work across the TN11 postcode area for external mastic and the streets around it. We cover properties on Three Elm Lane, Victoria Road and Bourne Park. We also cover the places around Golden Green: Barnes Street (1 mile east), Little Mill (1 mile east), Hadlow (1 mile north), Parker's Green (1 mile west) and Snoll Hatch (2 miles east). We also work in nearby towns such as Maidstone (9 miles north-east), Sevenoaks (8 miles north-west), Royal Tunbridge Wells (6 miles south-west), Gravesend (15 miles north), Tonbridge (3 miles west) and Northfleet (15 miles north).

Landmarks near Golden Green

Typical jobs here are in homes near Hadlow Rural Community School, The Bell Public House and Hadlow Rural Community School. Golden Green’s nearest station is Beltring station, roughly 2.6 miles east of the centre. A little further out are Tonbridge Cottage Hospital (3.8 miles south-west) and Hadlow Tower museum (0.9 miles north). Green spaces nearby include Barden Lake and Tudeley Woods RSPB reserve.

Map of Golden Green © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job