Medway · England
Twydall External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Twydall, with a one-year guarantee on every job. Call for a quick quote.
- Sealant pulling away from one side of the joint
- Rigid filler in a joint that should flex
- Leaking joints around cladding and façade panels
Why act early in Twydall
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost, so the problem grows beyond the joint itself. Homes in smaller places like Twydall can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- A 12-month guarantee on all work
- Experience in homes, commercial sites and hotels
- Anti-fungal sanitary silicone in wet areas
- 180+ five-star Google reviews
See our cost guide or customer reviews.
How we handle external mastic in Twydall
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we will confirm what access is needed. Typical jobs include hard, crazed mastic that has stopped moving and joints pointed up with cement by mistake, across render & cladding joints, brickwork movement joints and façade panels.
Around Twydall, garages, outbuildings and extensions all add to the joints on the outside of a home. Gutter ends, garage door frames and the joints where an extension meets the house are typical spots for leaks.
We stand behind the work with a one-year guarantee, so you are covered after we have gone.
- Place
- Twydall (ME8, ME7)
- Region
- Medway
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Twydall
What else we do in Twydall
Do you need external mastic in Twydall?
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:
- Rigid filler in a joint that should flex
- Rain getting behind render or cladding at a joint
- Weeds or debris growing in open joints
- Brick movement joints where the sealant has split
If you live in an older home near Holy Trinity Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- Are they insured?
- How hidden problems are handled
- Who does the work, and how experienced they are
- What the cure time is
What affects the quote in Twydall
You will get a clear quote before work begins. It’s based on:
- Which sealant suits the joint
- The number of rooms or windows
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- If someone has resealed it before
- The problem you’ve noticed
- Photos by email, if that is easy
- How we’d reach the joints
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or send us an email.
Questions from Twydall
I let a flat near Rainham (Kent) station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Does the coastal weather in Twydall 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. The right product, a clean joint and the right depth all help it cope.
Do you guarantee your work?
Yes, for a year. If anything is not right with the work within the year, let us know and we’ll sort it.
How do I get a quote for external mastic in Twydall?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or email us and tell us what needs doing and where.
Is it OK to fill a movement joint with cement?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose. We’ll reseal it with a flexible sealant.
How long before the joint can be used?
It depends on the product. Before we leave, we’ll tell you the cure time.
Do you use backing rod?
The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.
Can you seal over the old sealant?
No. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
How the job changes by surface
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant.
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. We size the backing rod to the gap.
Walls and rooflines in Twydall
Twydall is within about 2 miles of 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. With historic houses such as Restoration House (about 3.6 miles west) nearby, there’s older building stock in the area around Twydall as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Rented homes near Rainham (Kent) station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. Managing a site like Twydall Primary School and Nursery? Then its movement joints, gutters and trims need looking after like any other building’s.
Twydall is about 1 mile east of Gillingham, in Medway. If you need external mastic in Twydall, please phone 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Medway, Twydall included. Our area takes in 68 places across Medway. There’s also a page for Chelmsford, about 25 miles away.
All of ME8 and ME7 is within our area for external mastic. If you need external mastic at a property on Pump Lane, Blean Road and Herne Road or anywhere close by, we can help. With the A2 close by, Twydall is easy for our applicators to reach for external mastic. Neighbouring places we cover for external mastic include Gillingham (1 mile west), Lower Twydall (1 mile north), Grange (1 mile north), Wigmore (1 mile south) and Darland (1 mile south-west). We also work in nearby towns such as Chatham (3 miles south-west), Rochester (4 miles west), Strood (5 miles west), Lordswood (3 miles south-west), Hoo St Werburgh (4 miles north) and Chatham Waterfront (3 miles west). Being one of Medway’s larger places, Twydall has homes, rented property and businesses of every kind.
Around Twydall
Typical jobs here are in homes near Rainham Mark Grammar School, Howard School and The Three Mariners pub, among other places. Twydall’s nearest station is Rainham (Kent) station, roughly 1.2 miles south-east of the centre. Other landmarks nearby include Upnor Castle (3.4 miles north-west) and Six Poor Travellers House (3.7 miles west). Green spaces nearby include Bishop Saltings and Boxley Hills.
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Work for landlords, hotels and businesses
For anyone letting property in or around Twydall, several properties can be quoted together. Send us the addresses and the work at each.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
What we do, step by step
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a handful of joints, longer for a whole elevation. A visit to Twydall is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
- Let us know about earlier repairs to the joints
How to get a quote
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or send us an email with the details and send photos if you have them.