Kent · England
External & façade joints in Pegwell, Kent
Specialist external mastic for Pegwell: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Movement joints filled with mortar instead of sealant
- Movement joints with cracked, split or missing sealant
- Old sealant gone brittle and cracked
What affects the cost of external mastic
Call for a quick quote. The main things that affect it are:
- The number and length of the joints
- How many areas need sealing
- How easy the joints are to reach
- Whether there’s mould to deal with
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- How we’d reach the joints
- The address or postcode of the job
- Whether it’s a home or a business
- Pictures of the joints, sent by email
If you’re in Pegwell and need external mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
External mastic in Pegwell, done properly
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the joint does not stand out. Common call-outs are for brick movement joints where the sealant has split and old sealant gone brittle and cracked, on copings & trims, joints between brick and frames and brickwork movement joints.
Around Pegwell, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Place
- Pegwell (CT11, CT12)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

Looking after it afterwards
So the new joints stay in good condition:
- Keep water from gutters off the wall
- Walk round the building once a year and look at the joints
- Make sure movement joints aren’t pointed over
- Act on the first splits you see
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
External mastic in Pegwell: local notes
Pegwell 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of St Laurence, the joints between older walls, newer extensions and the roofline need a sealant that can move. Letting a property close to Ramsgate station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Pegwell is about 1 mile south-west of St Lawrence, in Kent. If you need external mastic in Pegwell, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover Kent from our Crawley base, Pegwell included. We cover 922 towns and villages across Kent. Chelmsford is on our list too, around 48 miles away.
Here we cover the CT11 and CT12 postcode area for external mastic. If you need external mastic at a property on Saxon Road, Downs Road and London Road or anywhere close by, our applicators can take on the job. Pegwell sits on or near the A299. If you are just outside Pegwell, we cover Chilton (1 mile north), Cliffs End (1 mile west), Newington (1 mile north), Manston (2 miles north-west) and Haine (2 miles north). Within a short drive, we also cover Canterbury (14 miles west), Margate (4 miles north), Dover (14 miles south), Broadstairs (3 miles north-east), Deal (8 miles south) and Herne Bay (12 miles west).
Local landmarks in Pegwell
Locally, jobs take us to homes and businesses close to Churchill House School With Railed Area, Chatham House Grammar School and Sandwich and Pegwell Bay, among other places. Pegwell’s nearest station is Ramsgate station, about 1.1 miles north-east of the centre. Well-known places in the area include Ramsgate General Hospital (0.8 miles east) and Westwood Cross (2.2 miles north). For a walk, there’s Sandwich and Pegwell Bay.
Do you need external mastic in Pegwell?
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
The problems people usually mention when they call are:
- Failed sealant between panels on a façade
- Joints with sealant missing in places
- Movement joints filled with mortar instead of sealant
- Damp patches traced to an open external joint
For site and facilities teams at buildings such as Chilton Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Before you book anyone
- When the joint can take water or movement
- Whether they’re fully insured
- Who does the work, and how experienced they are
- Whether VAT is included
Landlords, agents and businesses in Pegwell
For anyone letting property in or around Pegwell, several properties can be quoted together. Just tell us the addresses and what each one needs.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours to a few days, depending on the length of joint and the access, and the area is left clean. Somewhere like Pegwell needs a little journey planning: 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.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Mention any tricky access
- Let us know about parking restrictions
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or email us.
Related advice
Pegwell questions
Is external mastic in a coastal place like Pegwell 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.
Is Pegwell within the area you cover?
Yes, Pegwell is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages.
How do you reach high-level joints?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher work, tell us about the building and we will confirm what’s needed.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
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DIY versus a professional finish
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.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
When it is not the sealant
It helps to know what we can’t do too:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracks in the bricks or render themselves, away from the joints
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Concrete & block
- Copings & trims
- Façade panels
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
