Kent · England

External & façade joints in Hollingbourne, Kent

Specialist external mastic for Hollingbourne: careful preparation, the right product and tidy work. Ask us for a quick quote.

  • Sealant that has lost its bond to the brick or render
  • Failed seals between different materials
  • Leaking joints around cladding and façade panels

External mastic in Hollingbourne

External mastic for homes and businesses in Hollingbourne

We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render so the line blends in. Common call-outs are for rigid filler in a joint that should flex and old sealant gone brittle and cracked, on copings & trims, façade panels and brickwork movement joints.

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

You get a one-year guarantee, the same in Hollingbourne as everywhere else we work.

Location
Hollingbourne (ME17)
Region
Kent
Guarantee
A year, on every job
Quote
A clear quote up front
Call
0345 464 0079
Page updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Aftercare tips

A little care helps the new joints last. We recommend:

  • Act on the first splits you see
  • Keep soil, plants and ivy away from the joints
  • Look over the joints every year, ideally after winter
  • Leave the joints unpainted unless we have said otherwise

Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.

Once a joint can’t move, the wall finds another way, usually as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.

Can I do it myself?

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

What sealant work cannot fix

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

  • Damp from another source, such as a leaking gutter or a bridged damp-proof course
  • Loose or hollow render, which needs re-rendering
  • Walls that need new movement joints cut into them

If in doubt, call 0345 464 0079 or send us an email and we will say what we think.

What we seal

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

Landlord and commercial work in Hollingbourne

Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.

From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.

Different surfaces, different methods

Joints between dissimilar materials

Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.

Concrete and blockwork

Big joints in concrete need careful depth control. Backing rod sized to the joint sets it.

Hollingbourne buildings and the weather

The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Leeds Castle (about 1.3 miles south-west) nearby, there’s older building stock in the area around Hollingbourne as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.

Rented homes near Hollingbourne station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. In the older streets around All Saints Church, the joints between older walls, newer extensions and the roofline need a sealant that can move. Managing a site like Hollingbourne Primary School? Then its movement joints, gutters and trims need looking after like any other building’s.

Hollingbourne is about 5 miles east of Maidstone, in Kent. From the centre of Hollingbourne to the outskirts, we cover external mastic for every kind of property. Our Kent coverage runs to 922 places, Hollingbourne among them. You can also see our page for Chelmsford, roughly 33 miles from Hollingbourne.

Jobs for external mastic in ME17 is quoted and booked the same way as anywhere else. Local streets include Upper Street, Pilgrims Way and Hollingbourne Hill, all of which we cover. Other places close to Hollingbourne include Eyhorne Street (1 mile south-west), Broad Street (1 mile north-west), Chegworth (2 miles south), Ashbank (2 miles south-west) and Broomfield (2 miles south). We also work in nearby towns such as Maidstone (5 miles west), Ashford (13 miles south-east), Sittingbourne (7 miles north-east), Faversham (11 miles east), Minster (13 miles north-east) and Kings Hill (10 miles west).

What’s near Hollingbourne

Locally, jobs take us to homes and businesses close to Glyder House Sugar Loaves Public House. For rail, the closest station is Hollingbourne station, about 0.6 miles west of the centre. Other landmarks nearby include Laundry Museum (0.9 miles south-west) and Leeds Castle (1.3 miles south-west). The countryside around Hollingbourne includes Detling Hill.

Map of Hollingbourne © OpenStreetMap contributors

Hollingbourne: your questions answered

Will you come out to Hollingbourne?

Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

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

Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.

When will the joints need doing again?

It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away and have them redone then.

Why do you put foam in the joint first?

Backing rod goes into deeper joints as a matter of course. It controls the depth and stops the sealant bonding to the back, so the joint can move.

Can you do several jobs on one visit?

Yes. Just list everything you need and you will get one quote.

How long before the joint can be used?

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

Can new sealant go over the old?

No, because it fails. We remove every bit of old sealant first.

What colours does the sealant come in?

We choose a sealant colour to suit the brick, stone or render, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.

What affects the cost of external mastic

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

  • The number of rooms or windows
  • How much there is to do
  • The product the joint needs
  • How much old sealant there is and how hard it is to remove

Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.

What to tell us for a quote

To make quoting easier, let us know:

  • Whether it’s a home or a business
  • What the problem is, such as mould, gaps, leaks or cracking
  • Where the property is
  • Roughly how big the job is

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or send us an email.

How it works

On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before work begins. Most jobs take a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Hollingbourne, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
  2. The old mastic and anything lodged in the joint is removed.
  3. We clean both faces of the joint and prime them where the product calls for it.
  4. Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
  5. A flexible exterior sealant is applied and tooled in a colour to suit the wall.

Before we arrive

  • Move anything stored near the joints
  • Plan for the work area to be out of bounds to pets and children
  • Try not to wet indoor joints just before the visit

Getting a quote

Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work before giving you a price.

Get a quick quote

Advice

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