Kent · England
External Mastic in Cop Street
External mastic in Cop Street from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Joints where the bead has come unstuck
- Movement joints filled with mortar instead of sealant
- Plants rooting in failed movement joints
Walls and rooflines in Cop Street
With historic houses such as Goodnestone Park (about 4.1 miles south-west) nearby, there’s older building stock in the area around Cop Street as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. 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.
In the older streets around Church of St Nicholas, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you let a flat or house near Sandwich station, split movement joints are easy to miss on a rental until damp shows inside. Schools such as Ash Cartwright and Kelsey Church of England Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Cop Street is about 6 miles south-west of Ramsgate, in Kent. Our applicators cover external mastic for homeowners, landlords and businesses in Cop Street and nearby. Across Kent, we cover 922 places, and Cop Street is one of them. You can also see our page for Chelmsford, roughly 46 miles from Cop Street.
All of CT3 is within our area for external mastic, from the main roads to the quietest streets. We also cover Weddington (1 mile south), Ash (1 mile south), Guilton (1 mile south-west), Coombe (1 mile south) and Durlock (1 mile south-west). Further out, we also cover Canterbury (9 miles west), Margate (8 miles north-east), Dover (11 miles south), Folkestone (15 miles south), Ramsgate (6 miles north-east) and Broadstairs (8 miles north-east).
Around Cop Street
In Cop Street, that means homes and buildings near The Chequer Inn and the streets around them. For rail, the closest station is Sandwich station, about 2.9 miles south-east of the centre. Other landmarks nearby include White Mill (2.1 miles east). Open spaces near Cop Street include Monk's Wall nature reserve.
External mastic for homes and businesses in Cop Street
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’s needed to reach them safely. We work on copings & trims, render & cladding joints and concrete & block, and common reasons people get in touch are plants rooting in failed movement joints and sealant pulling away from one side of the joint.
In a village or hamlet like Cop Street, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.
All our work comes with a 12-month guarantee, wherever you are in Kent.
- Location
- Cop Street (CT3)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Also in Cop Street
How it works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours for a handful of joints, longer for a whole elevation. In a small place like Cop Street, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- 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
- Let us know about earlier repairs to the joints
- Clear items away from the joints we are working on
- Try not to wet indoor joints just before the visit
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, ring 0345 464 0079 or email us.
Advice
For landlords and businesses
Landlords and letting agents in Cop Street can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What the job involves on each surface
Render joints
Rendered walls have joints at beads, openings and changes of material. They’re resealed in a sealant that suits the render.
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two so neither cracks the other.
What affects the quote in Cop Street
For a quick quote, just ask. The main things that affect it are:
- When we can work, for business premises
- Whether the work is at height
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- Any access issues, like height or stairs
- Whether it’s a home or a business
- A few photos by email, if you can
- What’s wrong with the joints now
If you are in Cop Street and need external mastic, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Honest limits
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
- Rising or penetrating damp from elsewhere in the wall
- Cracking across the wall rather than at a joint
If in doubt, call 0345 464 0079 or email us and we will say what we think before booking.
Where we work in Cop Street
- Concrete & block
- Brickwork movement joints
- Façade panels
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
Why act early in Cop Street
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Older cottages and farmhouses around Cop Street can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
What you get with us
- White, clear, grey or another colour, product permitting
- Arbo and Everbuild products
- More than 20 years in sealant work
- Domestic, commercial and hotel work
See what affects the cost and customer reviews.
Cop Street: your questions answered
Can you do external mastic in Cop Street?
Yes. Our work covers London and the South East, and Cop Street is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear price.
I let a flat near Sandwich station. Can you help?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
What is backing rod for?
That’s backing rod, a closed-cell foam. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.
Is there any odour?
Possibly a little. It fades as the sealant cures.
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 with primer where required.
How do you reach high-level joints?
Each building is different. Send us pictures and a rough idea of the height, and we’ll confirm what access is needed.
When will the joints need doing again?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges, and reseal at that point.
Can I add another job to the visit?
Yes. More than one area can go on one quote.