Kent · England
Otham External Mastic
External mastic for Otham and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Gaps where render, brick and frames meet
- Brick movement joints where the sealant has split
- Weeds or debris growing in open joints
When it is not the sealant
We will always be straight with you, so here’s what sealant can’t fix:
- Loose or hollow render, which needs re-rendering
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracking across the wall rather than at a joint
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Joints and surfaces we work on
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Concrete & block
- Façade panels
- Brickwork movement joints
External mastic for homes and businesses in Otham
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it. If you have weathered mastic that no longer stretches and rain getting behind render or cladding at a joint, we can help, on copings & trims, render & cladding joints and joints between brick and frames alike.
Around Otham, garages, outbuildings and extensions all add to the joints on the outside of a home. Leaks generally start at a gutter end, a garage door frame or where an extension meets the house.
You get a 12-month guarantee, the same in Otham as everywhere else we work.
- Place
- Otham (ME15, ME17)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
Looking after new joints is easy:
- Fix overflowing gutters above sealed joints
- Get split or bare joints resealed while the damage is small
- Look over the joints every year, ideally after winter
- Clear growth from the base of walls and joints
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead over time.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Catch it early and you reduce the risk.
Questions from Otham
Can you help a landlord with a rental near Bearsted station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can go on one quote. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Is Otham in your area for external mastic?
Yes. We work across London and the South East, and Otham is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear quote.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme.
Is the work guaranteed?
Yes, always. There’s a 12-month guarantee on every job, large or small.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint.
How do I get a quote for external mastic in Otham?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before work begins.
Places near Otham
Other services in Otham
Common problems we fix in Otham
Weeds, moss and debris in a joint are a sign the sealant has gone. Roots and dirt hold water against the wall and speed up the damage.
Keep an eye out for any of the following:
- Rain getting behind render or cladding at a joint
- Rigid filler in a joint that should flex
- Leaking joints around cladding and façade panels
- Gaps where render, brick and frames meet
For landlords with property near Bearsted station, split movement joints are easy to miss on a rental until damp shows inside.
Comparing quotes
- How much experience the applicator has
- How long the guarantee is
- What happens if the job turns out different
- How long to leave it before use
How the visit works
When we arrive, we look over the joints with you first, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. The work usually takes a few hours for a handful of joints, longer for a whole elevation. For a job in Otham, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- 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.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Move anything stored near the joints
- Let us know if you’ve seen damp or leaks
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, call 0345 464 0079 or email us.
Related advice
External mastic in Otham: local notes
With historic houses such as Stoneacre (about 0.6 miles north-east) nearby, there’s older building stock in the area around Otham as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as Senacre Technology College, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Homes close to St Nicholas's Church include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Otham is about 2 miles south-east of Maidstone, in Kent. If you need external mastic in Otham, please call 0345 464 0079 or drop us an email for a quick quote. We cover Kent from our Crawley base, Otham included. Our Kent coverage runs to 922 places, and Otham is one of them. For nearby work, see our London page (33 miles or so).
Postcode districts we cover here for external mastic: ME15 and ME17. If you need external mastic at a property on Church Road, Spartall Drive and Ellis Field or a nearby road, our applicators can take on the job. If you’re just outside Otham, we cover Willington (1 mile north-west), Park Wood (1 mile south-west), Langley (1 mile south-east), Shepway (1 mile north-west) and Caring (1 mile north-east). We also work in nearby towns such as Ashford (15 miles south-east), Sittingbourne (10 miles north-east), Royal Tunbridge Wells (15 miles south-west), Gravesend (15 miles north-west), Tonbridge (13 miles west) and Faversham (15 miles east).
Around Otham
Locally, jobs take us to homes and businesses close to New Line Learning Academy, Senacre Wood Primary School and Mote Park, among other places. For rail, the closest station is Bearsted station, about 2.1 miles north. Well-known places in the area include Kent Fire Brigade Museum (2.4 miles west) and KIMS hospital (2.8 miles north). The countryside around Otham includes Detling Hill.
Leave it or put it right?
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and doesn’t last, so it pays to do it properly once. In an older home around Otham, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and send you a clear quote before any work starts.
Why Otham clients choose us
- A choice of colours where the product allows
- Anti-fungal silicone where joints get wet
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
Landlords, agents and businesses in Otham
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Letting agents often deal with us directly. Tell us the address, the job and how access works.