East Sussex · England
External & façade joints in North Chailey, East Sussex
External mastic for North Chailey, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Leaking joints around cladding and façade panels
- Joints where the bead has come unstuck
- Brick movement joints where the sealant has split
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from a few hours to several days, depending on the building and we leave things clean and tidy. In a small place like North Chailey, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Clear the area around the work
- Keep pets and children clear of the area while we work
Ask for a quote
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
External mastic in North Chailey
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We take the old material out and do it properly. We are often asked to deal with hard, crazed mastic that has stopped moving and panel joints letting water in, on brickwork movement joints, joints between brick and frames and copings & trims.
In a village or hamlet like North Chailey, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
You get a 12-month guarantee, the same in North Chailey as everywhere else we work.
- Where
- North Chailey (BN8)
- Wider area
- East Sussex
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost near the open joint, so the damage spreads beyond the joint. Around North Chailey, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we will go through it with you.
Why us?
- 12-month guarantee on every job
- Anti-fungal silicone where joints get wet
- Colour agreed with you before we start
- Fully insured
Read what affects the cost or what customers say.
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Walls that need new movement joints cut into them
- Rising or penetrating damp from elsewhere in the wall
- Cracked brickwork or render that needs a builder or plasterer
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Surfaces we seal
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
- Concrete & block
- Copings & trims
Keeping the joints in good condition
So the new joints stay in good condition:
- Never let anyone fill a movement joint with mortar
- Keep soil, plants and ivy away from the joints
- Avoid pressure-washing directly into sealant joints
- Have failed joints looked at early
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
Can I do it myself?
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. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Outside joints around North Chailey
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 Chailey Heritage School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. In the older streets around Church of Our Lady, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you let a flat or house near Plumpton station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
North Chailey is about 4 miles south-east of Haywards Heath, in East Sussex. Whether you’re in the middle of North Chailey or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our East Sussex coverage runs to 289 places, and North Chailey is one of them. Our Brighton page covers work nearby (11 miles or so).
Here we cover the BN8 postcode area for external mastic. You will find streets such as Station Road, Downs View and Downs View Close, and we cover them all. You’ll find North Chailey on the A275, so it’s easy for us to get to. Nearby, we also carry out external mastic in Chailey (1 mile south), Newick (1 mile east), South Street (2 miles south), Founthill (2 miles east) and Scaynes Hill (2 miles north-west). Further out, we also cover Seaford (15 miles south), Lewes (7 miles south), Hailsham (14 miles south-east), Crowborough (10 miles north-east), Uckfield (5 miles east) and Newhaven (13 miles south).
Near you in North Chailey
We work in homes and buildings around Chailey St Peter's Church of England Primary School and Chailey School and the streets around them. The closest station to North Chailey is Plumpton station, roughly 3.6 miles south-west of the centre. Other landmarks nearby include Heaven Farm Museum (3.4 miles north) and Waterbury Castle (4.7 miles north). The countryside around North Chailey includes Ashenground and Bolnore Woods.
Common questions in North Chailey
Can you help a landlord with a rental near Plumpton station?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Do you cover North Chailey for external mastic?
Yes, North Chailey is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Can you seal joints between render and window frames?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. The sealant is matched to both sides.
Are you insured?
Yes. Full insurance covers our work.
Can you do several jobs on one visit?
Yes. Just list everything you need and we’ll quote it together.
Will it make a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Where do you work from?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
How we quote for external mastic
We don’t publish a price list, because jobs vary so much. The quote depends on:
- Any working-time requirements on site
- The type of sealant required
- Any mould that needs treating
- How easy the joints are to reach
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- What’s wrong with the joints now
- How we’d reach the joints
- Roughly how big the job is
- Where the job is, and your postcode
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you’re ready, phone 0345 464 0079 or email us.