Kent · England
Guilton External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Guilton, backed by a 12-month guarantee. Call for a quick quote.
- Panel joints letting water in
- Rain getting behind render or cladding at a joint
- Brick movement joints where the sealant has split
External mastic for homes and businesses in Guilton
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We strip the joint back and start again. If you have movement joints filled with mortar instead of sealant and panel joints letting water in, we can put it right, whatever the surface.
External sealant needs dry, clean surfaces, so work around Guilton is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Guilton (CT3)
- Wider area
- Kent
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to several days, depending on the building, including the tidy-up. Somewhere as small as Guilton, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
How to prepare
- Clear items away from the joints we’re working on
- Mention any tricky access
- Plan for the work area to be out of bounds to pets and children
Getting a quote
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or send us an email and describe the job.
Related advice
Walls and rooflines in Guilton
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Goodnestone Park (about 3 miles south-west) are a reminder that the area around Guilton has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
For site and facilities teams at buildings such as Ash Cartwright and Kelsey Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing. Homes close to Church of St Nicholas include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Guilton is about 7 miles north-west of Deal, in Kent. For external mastic in and around Guilton, please call 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Kent, Guilton included. Our area takes in 922 places across Kent, large and small. We also work in Chelmsford, about 46 miles from Guilton.
Here we cover the CT3 postcode area for external mastic. Local streets include Guilton, Durlock Road and Poulton Lane, and we cover them all. Neighbouring places we cover for external mastic include Durlock (1 mile south-west), Ash (1 mile east), Weddington (1 mile north-east), Flemings (1 mile south-east) and Cop Street (1 mile north-east). Within a short drive, we also cover Canterbury (8 miles west), Margate (9 miles north-east), Dover (10 miles south), Folkestone (14 miles south), Ramsgate (7 miles north-east) and Broadstairs (9 miles north-east).
What’s near Guilton
In Guilton, that means homes and buildings near The Chequer Inn and the streets around them. For rail, the closest station is Sandwich station, about 3.3 miles east of the centre. Well-known places in the area include White Mill (2.6 miles east). Open spaces near Guilton include Monk's Wall nature reserve.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
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.
Different surfaces, different methods
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it or an approved alternative. Send us any details you have about the façade.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Do you need external mastic in Guilton?
Sometimes a movement joint was filled with mortar or a rigid filler. The joint can’t move, so the wall cracks somewhere else instead.
The problems people usually mention when they call are:
- Joints where the bead has come unstuck
- Water getting into walls through failed joints
- Panel joints letting water in
- Cracked joints where brick meets render or frames
For landlords with property near Sandwich station, outside joints that have cracked can let damp into a rental, so check them between lets.
Questions to ask before you book
- Whether you can choose the colour
- What happens if they find a problem under the old sealant
- Who turns up on the day
- Is the old sealant removed completely?
What affects the quote in Guilton
Call for a quick quote. The main things that affect it are:
- The type of sealant required
- Whether there’s mould to deal with
- Access and height
- Whether old sealant or filler has to be cut out
Doing several joints on one visit is usually more efficient than separate visits. We’ll send you a clear quote for the lot.
Asking for a quote
When you contact us, these details help:
- Any previous sealing or DIY work
- Photos by email, if that’s easy
- The address or postcode of the job
- Roughly how big the job is
Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Landlords, agents and businesses in Guilton
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Why act early in Guilton
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. Around Guilton, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Why book with us
- Anti-fungal silicone where joints get wet
- White, clear, grey or another colour, product permitting
- We leave the area clean and tidy
- Approved under the ARBOMaster scheme
Also near Guilton
Other services in Guilton
Guilton questions
Do you cover Guilton for external mastic?
Yes. We work across London and the South East, and Guilton is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
Is Guilton within the area you cover?
Yes, Guilton is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Will the new joint stand out?
The aim is a neat, even joint in a colour that suits the wall. We’ll talk through colour options before any work starts.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
I’m a tenant. Can you help?
We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
Can a movement joint be filled with mortar?
No. Rigid materials can’t move with the wall and the joint fails. If it has already been filled, we can normally cut it out and reseal it.
Can you seal joints between render and window frames?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.