Kent · England

External & façade joints in Kingsgate, Kent

Professional external mastic in and around Kingsgate, with every bit of old sealant taken out first and a 12-month guarantee.

  • Rain getting behind render or cladding at a joint
  • Cracked joints where brick meets render or frames
  • Weathered mastic that no longer stretches

External mastic for Kingsgate homes and businesses

How it works

A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Kingsgate, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We start by walking round the building and agreeing the joints and the access.
  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. We fit closed-cell backing rod to control the depth.
  5. We apply the sealant, tool it and check the whole run.

Getting ready for the visit

  • Keep children and pets away from the work area
  • For business premises, tell us about site rules or sign-in
  • For indoor joints, keep the area dry beforehand if you can

How to get a quote

There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.

Get a quick quote

Advice

External mastic in Kingsgate, done properly

A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. We work on render & cladding joints, brickwork movement joints and concrete & block, and the jobs we see most are leaking joints around cladding and façade panels and sealant that has lost its bond to the brick or render.

Somewhere as small as Kingsgate, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.

A one-year guarantee comes with the work, just as it does everywhere we cover.

Where
Kingsgate (CT10)
Wider area
Kent
Guarantee
One year on every job
Price
A clear price before any work starts
Phone
0345 464 0079
Page updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Different surfaces, different methods

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.

Cladding and façade panels

Cladding and façade panels are generally separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.

How to look after the new joints

Joint life depends on how it’s used and looked after. We suggest:

  • Do not let climbing plants root in the sealant
  • Keep movement joints as flexible joints, not mortar
  • Wash walls gently around the sealant
  • Deal with leaking gutters that soak the joints below

Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.

Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.

When to call us in Kingsgate

UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.

Common reasons people contact us include:

  • Movement joints with cracked, split or missing sealant
  • Rigid filler in a joint that should flex
  • Weathered mastic that no longer stretches
  • Gaps where render, brick and frames meet

If you look after a building such as Callis Grange Nursery and Infant School, its movement joints, gutters and trims need looking after like any other building’s.

Before you book anyone

  • What insurance they hold
  • What guarantee comes with the work
  • Who turns up on the day
  • Which colour the sealant will be

Choosing a sealant specialist

Landlord and commercial work in Kingsgate

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

Walls and rooflines in Kingsgate

Kingsgate is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on movement joints and outside wall joints, especially on the side facing the sea. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

For an older house near a landmark such as St Philip, older walls, gutters and the joints where extensions meet them need a flexible sealant. For landlords with property near Broadstairs station, split movement joints are easy to miss on a rental until damp shows inside.

Kingsgate is about 2 miles north of Broadstairs, in Kent. We carry out external mastic for homes and businesses in Kingsgate. We cover 922 towns and villages across Kent. Our Chelmsford page covers work nearby.

Jobs for external mastic in CT10 works the same way as everywhere else we cover. Whether your property is on Joss Gap Road, Kingsgate Bay Road and Holland Close or anywhere close by, we can help. Neighbouring places we cover for external mastic include Northdown (1 mile west), Palm Bay (1 mile north-west), Broadstairs (2 miles south), St Peter's (2 miles south-west) and Cliftonville (2 miles west). Further out, we also cover Margate (3 miles west), Ramsgate (3 miles south-west), Deal (12 miles south), Herne Bay (13 miles west), Walmer (13 miles south) and St Lawrence (4 miles south-west).

What’s near Kingsgate

In Kingsgate, that means homes and buildings near Captain Digby Inn and The Charles Dickens School. Kingsgate’s nearest station is Broadstairs station, roughly 1.6 miles south of the centre. Nearby you’ll also find Westwood Cross (2.6 miles south-west) and Queen Elizabeth the Queen Mother Hospital (2.3 miles west).

Map of Kingsgate © OpenStreetMap contributors

Your questions about external mastic in Kingsgate

Does the coastal weather in Kingsgate affect outside sealant?

Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.

Do you work for landlords with property near Broadstairs station?

Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.

Are you an approved applicator?

Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.

What sealant do you use?

We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.

Are you insured?

Yes. We’re fully insured.

What is backing rod for?

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.

Can you seal joints between render and window frames?

Yes. Materials like render, brick, metal and uPVC all move differently, so a flexible sealant is needed where they meet. We choose one that suits both surfaces.

What’s an expansion joint in brickwork?

A vertical gap in a long brick wall is generally a movement joint. It lets the bricks expand without cracking, and it should be sealed with a flexible sealant.

Why it’s worth doing now in Kingsgate

The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost around the joint, so the problem grows beyond the joint itself. Older cottages and farmhouses around Kingsgate can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.

Why Kingsgate clients choose us

  • Full insurance on every job
  • ARBOMaster approved applicator
  • We never seal over old sealant
  • A sealant colour to suit the surroundings

Read how sealant jobs are priced or what customers say.

How we quote for external mastic

Jobs vary more than people expect. The main factors:

  • The amount of work
  • Whether the work is at height
  • How many rooms, windows or areas are involved
  • When we can work, for business premises

Leaving a failed joint generally makes the job bigger, not smaller. If you are unsure, call 0345 464 0079 or drop us an email and we will give you an honest view and a quote.

What we need to know

A few details help us give you an accurate quote. When you ask for a quote, tell us:

  • The address or postcode of the job
  • If it’s domestic, commercial or a hotel
  • If someone has resealed it before
  • Access, such as stairs, a lift or height

To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before work begins.

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