East Sussex · England
External & façade joints in Peacehaven, East Sussex
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Peacehaven. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Sealant pulling away from one side of the joint
- Damp patches traced to an open external joint
- Moss and dirt in joints with no sealant left
How we handle external mastic in Peacehaven
Movement joints let brickwork, render and cladding expand and shrink without cracking. Its sealant has to flex with the building, season after season, and when it fails, the wall takes the strain and water finds a way in. If you’re dealing with sealant that has lost its bond to the brick or render and gaps where render, brick and frames meet, we can put it right, on façade panels, brickwork movement joints and concrete & block alike.
In a smaller place like Peacehaven, some homes face open ground, so exposed walls and rooflines take more wind-driven rain. That’s where gutter joints and wall joints tend to fail first.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Where
- Peacehaven (BN10, BN9)
- Wider area
- East Sussex
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Peacehaven
Sealing over the top of old mastic does not hold for long. The new layer can’t bond properly to old, weathered material, so the old joint is cut out fully first. In a smaller place like Peacehaven, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Why Peacehaven clients choose us
- 4.9 on Google from 180+ five-star reviews
- Colour picked to suit the job
- Experience in homes, commercial sites and hotels
- You choose the colour before work begins
See our cost guide or what customers say.
Landlords, agents and businesses in Peacehaven
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Quotes for external mastic in Peacehaven
There’s no set price list, because jobs vary so much. What we look at:
- Whether there’s mould to deal with
- Whether the work is at height
- The number of rooms or windows
- The type of sealant required
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
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
- Any access issues, like height or stairs
- Pictures of the joints, sent by email
- Whether it has been sealed before
If you are in Peacehaven and need external mastic, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Signs you need external mastic in Peacehaven
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
Signs it’s time to call us include:
- Plants rooting in failed movement joints
- Movement joints with cracked, split or missing sealant
- Rigid filler in a joint that should flex
- Hard, crazed mastic that has stopped moving
Homes close to Ascension Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
What to look for in a quote
- How hidden problems are handled
- Whether VAT is included
- How the colour is chosen
- Who does the work, and how experienced they are
FAQs for Peacehaven
Will you come out to Peacehaven?
Yes, Peacehaven is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Newhaven Town station?
Yes. We work for letting agents and landlords as well as householders. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Do you work for hotels and businesses?
Yes. Larger jobs can be planned room by room or area by area.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
Do you remove the old sealant?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Should I point up the gap in my brickwork?
No. Rigid materials cannot move with the wall. Where a joint has been mortared, it can often be raked out and sealed properly.
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Places near Peacehaven
More services for Peacehaven
What happens on the day
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes anything from a few hours to several days, depending on the building. For a job in Peacehaven, 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 start by checking each joint, agreeing the ones to redo and how we will reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- We clean both faces of the joint and prime them where the product calls for 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.
How to prepare
- Mention any parking rules near the property
- On commercial sites, let us know about site rules
- Tell us about any water getting in
Get a quote
Need a quote? Please phone 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before we start.
Related advice
Peacehaven buildings and the weather
Peacehaven is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. 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.
Schools such as Peacehaven Community School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For landlords with property near Newhaven Town station, outside joints that have cracked can let damp into a rental, so check them between lets.
Peacehaven is about 5 miles west of Seaford, in East Sussex. Peacehaven gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across East Sussex, we cover 289 places, Peacehaven among them. You can also see our page for Brighton, about 6 miles away.
Work in BN10 and BN9 works the same way as everywhere else we cover. Local streets include Starling Drive, Bramber Close and Greenfinch Road, and we cover them all. Being close to the A259, Peacehaven is easy for our applicators to reach. Neighbouring places we cover for external mastic include Telscombe Cliffs (1 mile west), Telscombe (1 mile north-west), Piddinghoe (2 miles north-east), East Saltdean (2 miles west) and Newhaven (2 miles east). We also work in nearby towns such as Eastbourne (12 miles east), Seaford (5 miles east), Lewes (6 miles north), Hailsham (12 miles north-east), Uckfield (13 miles north) and Polegate (11 miles east).
Near you in Peacehaven
We work in homes and buildings around Peacehaven Heights Primary School and the streets around them. For rail, the closest station is Newhaven Town station, about 2.1 miles east. A little further out are Planet Earth Museum (2.1 miles east) and Chailey Heritage Marine Hospital (2.9 miles east). The countryside around Peacehaven includes Itford Hill and Beacon Hill Local Nature Reserve.
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Deal with leaking gutters that soak the joints below
- Keep high-pressure jets off the joints
- Leave the joints unpainted unless we’ve said otherwise
- Never let anyone fill a movement joint with mortar
Only paint over the joint if we have confirmed the sealant can take paint. Paint can crack on a flexible joint, and paint can crack as the joint moves.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.