Kent · England
Queenborough External Mastic
Our applicators work in Queenborough on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Sealant pulling away from one side of the joint
- Failed seals between different materials
- Moss and dirt in joints with no sealant left
Different surfaces, different methods
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two so neither cracks the other.
Render joints
The face of render can be soft, so a low-modulus sealant is kinder to the joint edges. Priming is done where the sealant calls for it.
About our external mastic in Queenborough
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We strip the joint back and start again. We work on concrete & block, façade panels and copings & trims, and people most often call us about failed seals between different materials and joints where the bead has come unstuck.
In and around Queenborough, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Place
- Queenborough (ME11)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What else we do in Queenborough
When to call us in Queenborough
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
Signs it’s time to call us include:
- Damp patches traced to an open external joint
- Panel joints letting water in
- Plants rooting in failed movement joints
- Joints where the bead has come unstuck
Schools such as Queenborough School and Nursery are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Questions to ask before you book
- Who turns up on the day
- Whether all the old sealant comes out first
- How the surfaces are prepared before sealing
- Whether VAT is included
FAQs for Queenborough
Can you help a landlord with a rental near Queenborough station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Is Queenborough within the area you cover?
Yes. Queenborough is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Are you insured?
Yes. We are fully insured.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
How much does external mastic cost in Queenborough?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or email us with a short description of the job.
Can a movement joint be filled with mortar?
No. Rigid materials cannot move with the wall and the joint fails. Where a joint has been mortared, it can often be raked out and sealed properly.
What’s an expansion joint in brickwork?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking and needs a flexible seal, not mortar.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and reseal when it splits.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Render that is blown, hollow or coming away
- Structural movement, which needs a surveyor or engineer
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Render & cladding joints
- Façade panels
Queenborough buildings and the weather
Queenborough is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on movement joints and outside wall joints, especially on the side facing the sea. 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.
Letting a property close to Queenborough station? Then outside joints that have cracked can let damp into a rental, so check them between lets. In the older streets around Parish Church of the Holy Trinity, an extension built onto an older house moves differently, and the joint between them takes the strain.
Queenborough is about 2 miles west of Minster, in Kent. Jobs in Queenborough get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Our area takes in 922 places across Kent, from the larger towns to small villages. For nearby work, see our Chelmsford page, about 25 miles away.
Work in ME11 is quoted and booked the same way as anywhere else. External mastic is available to properties on High Street, Railway Terrace and Gordon Avenue and the roads around them. Queenborough sits on or near the B2007, so getting to you is simple. If you’re just outside Queenborough, we cover Rushenden (1 mile south-west), Halfway Houses (1 mile east), Sheerness (2 miles north), Blue Town (2 miles north) and Grain (3 miles north-west). Larger places within reach include Maidstone (14 miles south-west), Sittingbourne (5 miles south), Whitstable (13 miles east), Faversham (9 miles south-east), Davington (9 miles south-east) and Foley Park (13 miles south-west).
Near you in Queenborough
Around Queenborough, our work takes us to homes and buildings near Queen Phillippa pub and Oasis Academy Isle of Sheppey and the streets around them. Queenborough has its own railway station: Queenborough station. A little further out are Queenborough Guildhall Museum (within half a mile north-west) and Castle Rough (3.7 miles south).
What happens if it’s left?
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. Homes in smaller places like Queenborough 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.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Queenborough
- An ARBOMaster approved applicator
- You choose the colour before work begins
- Domestic, commercial and hotel work
- A sealant colour to suit the surroundings
Read our cost guide or what customers say.
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Keep movement joints as flexible joints, not mortar
- Clear growth from the base of walls and joints
- Check external joints each spring
- Check the sealant is paintable before painting near it
Don’t let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
Act while the splits are small. At that stage it’s a simple cut out and reseal before water has had years to get in.
What we do, step by step
We bring everything the job needs with us. Once we have agreed what’s being done, we protect the area and start. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In a smaller place like Queenborough, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Clear items away from the joints we’re working on
- Keep pets and children clear of the area while we work
- Let us know about stairs, lifts or work at height
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
Advice
Landlord and commercial work in Queenborough
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.
For anyone letting property in or around Queenborough, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.