Kent · England

Twitham External Mastic

We cover Twitham for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.

  • Panel joints letting water in
  • Hard, crazed mastic that has stopped moving
  • Movement joints with cracked, split or missing sealant

Trusted external mastic in Twitham

About our external mastic in Twitham

Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible exterior sealant takes up that movement where mortar or filler would crack. We work on joints between brick and frames, concrete & block and render & cladding joints, and people most often call us about hard, crazed mastic that has stopped moving and damp patches traced to an open external joint.

External sealant needs dry, clean surfaces, so work around Twitham is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.

We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.

Where
Twitham (CT3)
Region
Kent
Cover
One year on every job
Price
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

What affects the quote in Twitham

The quote reflects the job in front of us. We take into account:

  • How easy the joints are to reach
  • The product the joint needs
  • Any working-time requirements on site
  • The size of the job

There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.

What to tell us for a quote

You do not need to know the technical terms. Just tell us:

  • Whether it has been sealed before
  • How many joints, rooms or windows are involved
  • Pictures of the joints, sent by email
  • The address or postcode of the job

Asking for a quote is easy: tell us what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we will come back to you with a quote.

Landlords, agents and businesses in Twitham

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.

We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured for the work.

When it isn’t the sealant

We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:

  • Loose or hollow render, which needs re-rendering
  • Movement that’s more than a sealant joint can take
  • Rising or penetrating damp from elsewhere in the wall

If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer before you book.

Where we work in Twitham

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

What we are called out for in Twitham

Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it cannot stretch and tears as soon as the joint widens.

Signs it’s time to call us include:

  • Hard, crazed mastic that has stopped moving
  • Weeds or debris growing in open joints
  • Joints with sealant missing in places
  • Movement joints filled with mortar instead of sealant

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

Comparing quotes

  • Whether you can choose the colour
  • Whether the sealant suits the joint
  • What preparation is included
  • How long to leave it before use

How to choose a mastic man

Should I try it myself 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.

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

Surface by surface

Copings and trims

Joints in copings, parapets and trims are exposed to the worst of the weather. We reseal them with an exterior sealant suited to the material.

Joints between dissimilar materials

Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.

How the visit works

We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours to a few days, depending on the length of joint and the access and we leave things clean and tidy. In a small place like Twitham, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
  2. Old sealant and any debris are cut and raked out.
  3. The joint faces are cleaned and primed where the sealant needs it.
  4. Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
  5. A flexible exterior sealant is applied and tooled in a colour to suit the wall.

Preparing for the visit

  • Mention any parking rules near the property
  • For business premises, tell us about site rules or sign-in
  • Mention if the joints have been sealed before

Getting a quote

To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.

Ask for a quote

Related advice

Outside joints around Twitham

With historic houses such as Goodnestone Park (about 1.6 miles south) nearby, there’s older building stock in the area around Twitham as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

If you let a flat or house near Adisham station, split movement joints are easy to miss on a rental until damp shows inside.

Twitham is about 7 miles east of Canterbury, in Kent. Twitham gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Twitham is one of 922 places in Kent where we work. For nearby work, see our Chelmsford page.

Jobs for external mastic in CT3 works the same way as everywhere else we cover. Other places close to Twitham include Well Head (1 mile west), Staple (1 mile east), Shatterling (1 mile north), Wingham (1 mile north-west) and Barnsole (1 mile east). Larger places within reach include Canterbury (7 miles west), Margate (10 miles north-east), Dover (9 miles south), Folkestone (13 miles south), Ramsgate (9 miles north-east) and Broadstairs (11 miles north-east).

Landmarks near Twitham

Locally, jobs take us to homes and businesses close to The Three Tuns pub, among other places. Twitham’s nearest station is Adisham station, about 2.4 miles south-west of the centre. Other landmarks nearby include St Martins Hospital (5.7 miles west) and White Mill (4 miles east). Not far away are Monk's Wall nature reserve.

Map of Twitham © OpenStreetMap contributors

Questions from Twitham

Do you work for landlords with property near Adisham station?

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.

Will you come out to Twitham?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

How long does the job take?

A typical job takes anything from a few hours to several days, depending on the building, including the preparation. Your quote will say how long we expect yours to take.

Do you seal joints where cladding meets other materials?

Yes. Where different materials meet is one of the most common joints we seal. The sealant is chosen to bond to both sides, primed where needed.

What information do you need?

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

Do I need to be at home?

Access is agreed with you when the job is booked. Indoors, that generally means someone at home.

Do you use backing rod?

Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. That way it bonds to the two sides only and can stretch.

Do you remove the old sealant?

Yes. All of the old material is cut out and the joint cleaned.

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