Kent · England
Hawkinge External Mastic
External mastic in Hawkinge from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Panel joints letting water in
- Damp patches traced to an open external joint
- Joints with sealant missing in places
When it is not the sealant
We’d rather tell you now than do work that will not last, so these are the limits:
- Render that is blown, hollow or coming away
- Structural movement, which needs a surveyor or engineer
- Walls that need new movement joints cut into them
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Where we work in Hawkinge
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Façade panels
- Joints between brick and frames
- Copings & trims
About our external mastic in Hawkinge
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two. We work on joints between brick and frames, façade panels and concrete & block, and common reasons people get in touch are brick movement joints where the sealant has split and leaking joints around cladding and façade panels.
Outbuildings, garages and conservatories around homes in places like Hawkinge add more joints to look after. Gutter ends, garage door frames and the joints where an extension meets the house are typical spots for leaks.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.

- Location
- Hawkinge (CT18)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
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. All the old material has to come out first.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Nearby places to Hawkinge
Also in Hawkinge
Surface by surface
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible year round.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so its sealant has to stay flexible.
How the visit works
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and clear up. It normally takes anything from a few hours to several days, depending on the building. Parking around Hawkinge is normally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Mention any parking rules near the property
- Tell us about any water getting in
- Keep children and pets away from the work area
Get a quote
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Advice
Questions from Hawkinge
Is external mastic in a coastal place like Hawkinge any different?
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.
Will you come out to Hawkinge?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
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.
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.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme.
Can you match the colour of my brickwork?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We pick the one that suits your wall best so the joint does not draw the eye.
How often do external joints need resealing?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges, and reseal at that point.
Is there a guarantee?
Yes, for a year. If there’s a problem with our work in that time, tell us and we’ll put it right.
Outside joints around Hawkinge
Hawkinge is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. 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 Luke's, older walls, gutters and the joints where extensions meet them need a flexible sealant. Managing a site like The Churchill School? Then larger buildings have long runs of movement joint that eventually need resealing.
Hawkinge is about 2 miles north of Folkestone, in Kent. For external mastic in and around Hawkinge, it’s easy to get a quote: please phone 0345 464 0079 or email us. We cover Kent from our Crawley base, Hawkinge included. Our area takes in 922 places across Kent. There’s also a page for Chelmsford, roughly 52 miles from Hawkinge.
Our applicators cover all of the CT18 postcode area for external mastic. You will find streets such as The Street, Spitfire Way and Waddington Drive, all of which we cover. We also cover the places around Hawkinge: Densole (1 mile north), Old Hawkinge (1 mile east), Arpinge (1 mile south-west), Swingfield Minnis (2 miles north) and Selsted (3 miles north). Within a short drive, we also cover Ashford (13 miles west), Canterbury (12 miles north), Dover (6 miles east), Deal (12 miles north-east), Hythe (4 miles south-west) and Tower Hamlets (6 miles east).
Landmarks near Hawkinge
In Hawkinge, that means homes and buildings near The Mayfly pub and the streets around them. The closest station to Hawkinge is Folkestone West station, about 2 miles south. A little further out are Royal Victoria Hospital (2 miles south) and Elham Valley Countryside Centre And Railway Museum (2.1 miles south-west). Green spaces nearby include Cheriton Hill.
When to call us in Hawkinge
Poor preparation causes many early failures: 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.
Any of these means the joints need attention:
- Brick movement joints where the sealant has split
- Panel joints letting water in
- Weeds or debris growing in open joints
- Hard, crazed mastic that has stopped moving
If you let a flat or house near Folkestone West station, outside joints that have cracked can let damp into a rental, so check them between lets.
Comparing quotes
- What happens if they find a problem under the old sealant
- What insurance they hold
- Is VAT in the price?
- How the colour is chosen
Landlords, agents and businesses in Hawkinge
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Quotes for external mastic in Hawkinge
Jobs vary more than people expect. What affects the quote:
- How much there is to do
- Which sealant suits the joint
- The number of rooms or windows
- Whether the work is at height
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.
Helping us quote
When you call or email, these details help:
- How many joints, rooms or windows are involved
- Photos by email, if that is easy
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand, and we will take it from there.
