Kent · England

External Mastic in Pratling Street

Sealing brickwork movement joints, render, cladding and façade joints in Pratling Street, with a 12-month guarantee on every job. Ask us for a quote.

  • Failed seals between different materials
  • Weathered mastic that no longer stretches
  • Joints with sealant missing in places

Need external mastic in Pratling Street?

External mastic in Pratling Street

Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. If you’re dealing with movement joints filled with mortar instead of sealant and weathered mastic that no longer stretches, we can help, on copings & trims, render & cladding joints and façade panels alike.

Somewhere as small as Pratling Street, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.

Every job comes with our 12-month guarantee.

Place
Pratling Street (ME20)
Region
Kent
Guarantee
One year on every job
Price
A clear price before work begins
Call
0345 464 0079
Page updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

When to call us in Pratling Street

A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The new sealant then lets go long before it should.

Signs it’s time to call us include:

  • Damp patches traced to an open external joint
  • Movement joints with cracked, split or missing sealant
  • Weathered mastic that no longer stretches
  • Moss and dirt in joints with no sealant left

Letting a property close to Aylesford station? Then split movement joints are easy to miss on a rental until damp shows inside.

Before you book anyone

  • How the joint is cleaned and prepared
  • Is VAT in the price?
  • Which colour the sealant will be
  • Whether the sealant suits the joint

Our hiring checklist

Landlord and commercial work in Pratling Street

For anyone letting property in or around Pratling Street, several properties can go on one quote. Send us the addresses and the work at each.

Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.

DIY sealant or a professional job?

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.

How it works

We bring everything the job needs with us. Once we’ve agreed what’s being done, we protect the area and start. 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 Pratling Street, 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. Each joint is checked and the colour of the new sealant agreed.
  2. Failed sealant is removed back to clean, sound faces.
  3. Backing rod goes in so the sealant can stretch between the two faces.
  4. Primer is applied wherever the sealant needs it.
  5. A low-modulus exterior sealant is gunned in and tooled to a neat finish.

Getting ready for the visit

  • Tell us about access, such as stairs, a lift or high-level joints
  • Clear items away from the joints we’re working on
  • Where the joints are inside, avoid wetting them before we arrive

How to get a quote

For a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll send you a clear quote before any work starts.

Get a quick quote

Advice

Different surfaces, different methods

Joints between dissimilar materials

Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.

Concrete and blockwork

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

What affects the cost of external mastic

For a quick quote, just ask. The main things that affect it are:

  • How many areas need sealing
  • Mould in or behind the old joints
  • Any working-time requirements on site
  • Access and height

What it costs depends on the amount of work, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.

Asking for a quote

There’s no need for technical detail. Just tell us:

  • The rough size of the job
  • Whether it’s a home or a business
  • How we’d reach the joints
  • If someone has resealed it before

Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.

What external mastic looks like in Pratling Street

Historic houses like Starkey Castle (about 4.3 miles north) are a reminder that the area around Pratling Street has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. 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.

In the older streets around Methodist Church Including Sunday School, an extension built onto an older house moves differently, and the joint between them takes the strain. Schools such as St Peter's Church of England Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

Pratling Street is about 3 miles north-west of Maidstone, in Kent. Jobs in Pratling Street get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 922 towns and villages across Kent. London is on our list too, around 29 miles away.

All of ME20 is covered for external mastic. If you need external mastic at a property on Old Mill Lane, Pratling Street and St Michaels Close or a nearby road, our applicators can take on the job. If you’re just outside Pratling Street, we cover Forstal (1 mile south-west), Eccles (1 mile north-west), Burham (2 miles north-west), New Hythe (2 miles west) and Larkfield (2 miles west). Further out, we also cover Maidstone (3 miles south-east), Sittingbourne (11 miles east), Dartford (15 miles north-west), Sevenoaks (14 miles west), Royal Tunbridge Wells (15 miles south-west) and Gravesend (10 miles north-west).

What’s near Pratling Street

Locally, jobs take us to homes and businesses close to Aylesford School, The Bush pub and Tyland Barn, among other places. The closest station to Pratling Street is Aylesford station, roughly 1.4 miles west. Well-known places in the area include Fremlin Walk (2.4 miles south-east) and Allington Castle (1.1 miles south-east). Green spaces nearby include Burham Down and Boxley Hills.

Map of Pratling Street © OpenStreetMap contributors

Pratling Street: your questions answered

Is Pratling Street in your area for external mastic?

Yes. We work across London and the South East, and Pratling Street is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.

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

Yes, we work for landlords and agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.

Why is there a gap in my brick wall?

Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move.

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.

How often do external joints need resealing?

It depends on the exposure, the movement and the product. Sealant is a maintenance item, so check the joints once a year.

What is backing rod for?

That is backing rod, a closed-cell foam. It keeps the sealant at the right depth and bonded to the sides only.

How long before the joint can be used?

It depends on the product and the conditions. We tell you how long to leave it before we go.

What should I tell you?

The location, the problem and the rough size of the job. If you can, email a few photos.

Aftercare tips

Looking after new joints is easy:

  • Point out the joints to other trades
  • Wash walls gently around the sealant
  • Check external joints each spring
  • Have failed joints looked at early

Keep pressure washers away from the sealant. High-pressure water can lift the edges.

Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.

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