East Sussex · England
External & façade joints in Lower Horsebridge, East Sussex
External mastic for Lower Horsebridge, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Movement joints filled with mortar instead of sealant
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
External mastic in Lower Horsebridge, done properly
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we’ll confirm what’s needed to reach them safely. Common call-outs are for cracked joints where brick meets render or frames and sealant pulling away from one side of the joint, across render & cladding joints, concrete & block and brickwork movement joints.
Outside joints can only be sealed when they’re dry, so work in Lower Horsebridge is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
Whatever the size of the job, it’s backed by our 12-month guarantee in Lower Horsebridge and across East Sussex.

- Where
- Lower Horsebridge (BN27)
- Wider area
- East Sussex
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
When something else is needed
To be straight with you, some problems need a different trade:
- Damp that isn’t coming from the joint
- Movement that is more than a sealant joint can take
- Render that’s blown, hollow or coming away
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before booking.
Joints and surfaces we work on
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Façade panels
- Joints between brick and frames
Nearby places to Lower Horsebridge
More services for Lower Horsebridge
Leave it or put it right?
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. Around Lower Horsebridge, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why us?
- Old sealant always removed completely
- Anti-fungal silicone where joints get wet
- Experience in homes, commercial sites and hotels
- White, clear, grey or coloured to suit, where the product allows
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve 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. Somewhere like Lower Horsebridge needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Clear the area around the work
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
Get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved.
Advice
What affects the quote in Lower Horsebridge
You’ll get a clear quote before work begins. It takes into account:
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
- The product the joint needs
- How many rooms, windows or areas are involved
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we’ll explain what it covers.
What we need to know
Before you ask for a quote, have a think about:
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- Pictures of the joints, sent by email
Want a quote for external mastic? Please ring 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
DIY versus a professional finish
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.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
How to look after the new joints
After the cure time, these simple habits help:
- Keep water from gutters off the wall
- Check the sealant is paintable before painting near it
- Make sure movement joints are not pointed over
- Look over the joints every year, ideally after winter
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal before water has had years to get in.
What external mastic looks like in Lower Horsebridge
Historic houses like Horselunges Manor (about 0.6 miles north-east) are a reminder that the area around Lower Horsebridge has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Polegate station, outside joints that have cracked can let damp into a rental, so check them between lets. If you look after a building such as Hellingly Community Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Lower Horsebridge is about 1 mile north-west of Hailsham, in East Sussex. From the centre of Lower Horsebridge to the outskirts, external mastic is available for homes and businesses alike. Lower Horsebridge is one of 289 places in East Sussex we cover for external mastic. You can also see our page for Brighton, roughly 16 miles from Lower Horsebridge.
Every address in BN27 is within our area for external mastic, from the main roads to the quietest streets. Neighbouring places we cover for external mastic include Tile Hurst (1 mile south), Upper Horsebridge (1 mile east), Lower Dicker (1 mile west), Hellingly (1 mile east) and Hailsham (1 mile south-east). Within a short drive, we also cover Eastbourne (7 miles south), Hastings (14 miles east), Bexhill-on-Sea (10 miles east), Seaford (9 miles south-west), Lewes (10 miles west) and Crowborough (12 miles north).
Around Lower Horsebridge
In Lower Horsebridge, that means homes and buildings near Hailsham Community College. For rail, the closest station is Polegate station, about 4.1 miles south of the centre. Well-known places in the area include Herstmonceux Castle (4.5 miles east) and Hellingly Hospital Railway (1.1 miles north-east).
Do you need external mastic in Lower Horsebridge?
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
The most common problems we see are:
- Failed seals between different materials
- Rigid filler in a joint that should flex
- Sealant that has lost its bond to the brick or render
- Movement joints with cracked, split or missing sealant
In the older streets around Zoar Strict Baptist Chapel, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Questions to ask before you book
- What insurance they hold
- What guarantee comes with the work
- What the cure time is
- Is VAT in the price?
Your questions about external mastic in Lower Horsebridge
Do you work for landlords with property near Polegate station?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Do you cover smaller places like Lower Horsebridge?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How do you reach high-level joints?
It depends on the building. Where joints can be reached safely, we’ll do them. Give us some details and we will confirm the access.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Can you do several jobs on one visit?
Yes. Just list everything you need and we will quote it together.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
