Kent · England

External & façade joints in Palmarsh, Kent

Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Palmarsh. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Failed sealant between panels on a façade
  • Brick movement joints where the sealant has split
  • Water getting into walls through failed joints

External mastic for Palmarsh homes and businesses

Why deal with it now?

It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together. Homes in smaller places like Palmarsh can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.

We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.

Why us?

  • Anti-fungal silicone where joints get wet
  • 180+ five-star Google reviews
  • We never seal over old sealant
  • Colour picked to suit the job

Take a look at what affects the cost or what customers say.

External mastic in Palmarsh

Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. We work on brickwork movement joints, façade panels and joints between brick and frames, and the jobs we see most are movement joints filled with mortar instead of sealant and gaps where render, brick and frames meet.

In a smaller place like Palmarsh, some homes face open ground, and walls and rooflines facing the weather take the worst of it. Joints on those sides are generally the first to go.

Big or small, it’s backed by our 12-month guarantee in Palmarsh and across Kent.

Applicator reaching up to seal an external door frame on a sunny day
Location
Palmarsh (CT21)
Wider area
Kent
Guarantee
12 months on all our work
Quote
A clear price before work begins
Telephone
0345 464 0079
Page updated
26 October 2026

What we’re called out for in Palmarsh

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 sealant never bonds properly.

Keep an eye out for any of the following:

  • Rain getting behind render or cladding at a joint
  • Sealant that has lost its bond to the brick or render
  • Panel joints letting water in
  • Plants rooting in failed movement joints

Rented homes near Sandling station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.

What your quote should include

  • How the joint is cleaned and prepared
  • How hidden problems are handled
  • Are they insured?
  • What product goes in the joint

How to choose a mastic man

DIY sealant or a professional job?

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.

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.

Landlords, agents and businesses in Palmarsh

We work for letting agents and landlords as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.

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.

Your questions about external mastic in Palmarsh

Is external mastic in a coastal place like Palmarsh any different?

Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are normally the first to need attention.

Will you come out to Palmarsh?

Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.

Where do you work from?

Our base is in Crawley, and we work across South East England, London and Scotland.

I rent my home. Can I book you?

We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.

How do you reach high-level joints?

It depends on the building. We work on joints that can be reached safely. Tell us about the building and we’ll confirm what access is needed.

Do you work for letting agents?

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

Can you do several jobs on one visit?

Of course. Combining jobs makes good use of the visit.

Are you insured?

Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.

How we quote for external mastic

The quote reflects the job in front of us. We look at:

  • Access and height
  • How much there is to do
  • How many areas need sealing
  • Any mould that needs treating

No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.

What to tell us for a quote

To make quoting easier, please include:

  • The address or postcode of the job
  • Photos by email, if that’s easy
  • If it’s domestic, commercial or a hotel
  • The rough size of the job

Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll take it from there.

What we do, step by step

Before we leave, we go over the finished joints with you. The visit itself normally takes anything from a few hours to several days, depending on the building, depending on the amount of work. In a smaller place like Palmarsh, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.

  1. First, the joints are inspected and the access agreed.
  2. Every bit of old sealant and any mortar or debris is cut out.
  3. Joint faces are cleaned back and primed if the sealant needs 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.

How to prepare

  • Tell us about any previous sealing or DIY attempts
  • Tell us about access, such as stairs, a lift or high-level joints
  • For indoor joints, keep the area dry beforehand if you can

Getting a quote

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or send us an email.

Get a quick quote

Advice

External mastic in Palmarsh: local notes

Palmarsh is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

Managing a site like Palmarsh Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. In the older streets around Holy Cross, old and new materials meet at the roofline and walls, which is where sealant earns its keep.

Palmarsh is about 2 miles south-west of Hythe, in Kent. We provide external mastic to homeowners, landlords and businesses in Palmarsh and the surrounding area. Across Kent, we cover 922 places, Palmarsh among them. Chelmsford is on our list too, about 53 miles from Palmarsh.

All of CT21 is within our area for external mastic. You’ll find streets such as Nickolls Road, Blackman Road and Burmarsh Road, and we cover them all. We also cover the places around Palmarsh: West Hythe (1 mile north-west), Pedlinge (1 mile north), Lympne (1 mile north-west), Berwick (1 mile north-west) and Hythe (2 miles north-east). Within a short drive, we also cover Ashford (10 miles north-west), Canterbury (15 miles north), Dover (12 miles north-east), Folkestone (5 miles east), Tower Hamlets (12 miles north-east) and Hawkinge (6 miles north-east).

What’s near Palmarsh

Locally, jobs take us to homes and businesses close to Brockhill Park Performing Arts College and Brockhill Country Park and the streets around them. For rail, the closest station is Sandling station, roughly 2 miles north-east. Well-known places in the area include Hythe Museum (1.6 miles east) and Lympne Castle (1.2 miles north-west). Not far away are Tolsford Hill.

Map of Palmarsh © OpenStreetMap contributors

What we can’t put right

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

  • Structural movement, which needs a surveyor or engineer
  • Failed render or damaged cladding panels
  • Cracks in the bricks or render themselves, away from the joints

If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.

Surfaces we seal

  • Façade panels
  • Render & cladding joints
  • Joints between brick and frames
  • Brickwork movement joints
  • Copings & trims
  • Concrete & block
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job