Kent · England
External & façade joints in Sheet Hill, Kent
External mastic in Sheet Hill from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Weathered mastic that no longer stretches
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
Questions from Sheet Hill
Will you come out to Sheet Hill?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do external mastic in Sheet Hill?
Yes. Our work covers London and the South East, and Sheet Hill is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
Can tenants book the work?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
Do you remove the old sealant?
Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Can a movement joint be filled with mortar?
No. Cement or mortar can’t stretch. If it has already been filled, we can generally cut it out and reseal it.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
Is the work guaranteed?
Yes, for a year. If anything is not right with the work within the year, let us know and we will sort it.
External mastic in Sheet Hill
Low-level joints can generally be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what access is needed. If you’re dealing with water getting into walls through failed joints and panel joints letting water in, we can put it right, on joints between brick and frames, copings & trims and brickwork movement joints alike.
Outside joints can only be sealed when they’re dry, so work in Sheet Hill is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- Sheet Hill (TN15)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Landlords, agents and businesses in Sheet Hill
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
For anyone letting property in or around Sheet Hill, several properties can be quoted together. Send us the addresses and the work at each, and pictures by email help.
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
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 does not work out, we can still put it right.
Common problems we fix in Sheet Hill
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
The problems people usually mention when they call include:
- Movement joints with cracked, split or missing sealant
- Water getting into walls through failed joints
- Joints where the bead has come unstuck
- Old sealant gone brittle and cracked
In the older streets around Plaxtol Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Questions to ask before booking
- Whether VAT is included
- How hidden problems are handled
- How the joint is cleaned and prepared
- Who turns up on the day
Walls and rooflines in Sheet Hill
With historic houses such as Old Soar Manor (about 1.3 miles east) nearby, there’s older building stock in the area around Sheet Hill as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Plaxtol Primary School, its movement joints, gutters and trims need looking after like any other building’s. Rented homes near Borough Green & Wrotham station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Sheet Hill is about 5 miles east of Sevenoaks, in Kent. Anywhere in TN15, we can carry out external mastic at your property. Sheet Hill is one of 922 places in Kent where we work for external mastic. We also work in London, around 23 miles away.
Work in TN15 is quoted and booked the same way as anywhere else. We cover properties on Bewley Lane and Sheet Hill. We also cover Yopps Green (1 mile south-east), Ivy Hatch (1 mile west), Ightham (1 mile north-west), Oldbury (1 mile north-west) and Shipbourne (2 miles south). We also work in nearby towns such as Maidstone (10 miles east), Dartford (12 miles north), Sevenoaks (5 miles west), Royal Tunbridge Wells (9 miles south), Gravesend (12 miles north) and Tonbridge (5 miles south).
Local landmarks in Sheet Hill
Typical jobs here are in homes near Ivy Hatch Nature Reserve, Wrotham School and The Plough Public House, among other places. The closest station to Sheet Hill is Borough Green & Wrotham station, roughly 1.7 miles north of the centre. Well-known places in the area include Beechin Wood Archery Museum (2 miles north-east) and Sevenoaks Hospital (4.4 miles west).
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Check external joints each spring
- Don’t let climbing plants root in the sealant
- Keep movement joints as flexible joints, not mortar
- Check the sealant is paintable before painting near it
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick which cost more to put right than the joint.
What happens if it’s left?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. Around Sheet Hill, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email and we’ll talk you through it.
Why Sheet Hill clients choose us
- Experience in homes, commercial sites and hotels
- Anti-fungal silicone where joints get wet
- White, clear, grey or coloured to suit, where the product allows
- We agree the colour with you first
Read how sealant jobs are priced and our reviews.
Nearby places to Sheet Hill
More services for Sheet Hill
What we do, step by step
On the day, we look over the joints with you first. We protect the surfaces around the joints before work begins. Most jobs take a few hours to a few days, depending on the length of joint and the access. In a small place like Sheet Hill, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
- Clear items away from the joints we’re working on
Ask for a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job.
Related advice
When something else is needed
New sealant can’t fix everything, and we’ll tell you before any work starts. Sealant won’t put right:
- Rising or penetrating damp from elsewhere in the wall
- Loose or hollow render, which needs re-rendering
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before booking.
What we seal
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
- Concrete & block
- Façade panels