East Sussex · England
External & façade joints in Nash Street, East Sussex
Specialist external mastic for Nash Street: careful preparation, the right product and tidy work. Call for a quick quote.
- Failed sealant between panels on a façade
- Old sealant gone brittle and cracked
- Joints with sealant missing in places
Surface by surface
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Send us any details you have about the façade.
External mastic for homes and businesses in Nash Street
Ground-floor and low-level joints are straightforward to reach. 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 gaps where render, brick and frames meet and water getting into walls through failed joints, we can help, whatever the surface.
Older homes in small places like Nash Street may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points.
Your job is guaranteed for a year, as with all our work.
- Where
- Nash Street (BN27)
- Region
- East Sussex
- Guarantee
- A year, on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for external mastic
For a quick quote, just ask. What matters most is:
- The number and length of the joints
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
- The product the joint needs
Combining jobs into one visit generally makes better use of the time than several visits. We’ll give you a clear quote for the lot.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- The problem you’ve noticed
- A few photos by email, if you can
- Whether it has been sealed before
- How we’d reach the joints
Want a quote for external mastic? Please phone 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and send you a clear quote before we start.
Signs you need external mastic in Nash Street
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
These are the problems we’re asked about most:
- Brick movement joints where the sealant has split
- Hard, crazed mastic that has stopped moving
- Damp patches traced to an open external joint
- Cracked joints where brick meets render or frames
Letting a property close to Berwick (Sussex) station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
What to look for in a quote
- Whether they’re fully insured
- Whether they seal over old material or remove it
- Whether you can choose the colour
- What the quote includes, VAT included or not
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Don’t let climbing plants root in the sealant
- Point out the joints to other trades
- Make sure movement joints aren’t pointed over
- Leave the joints unpainted unless we’ve said otherwise
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Why deal with it now?
A failed movement joint lets water into the wall. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Where a wall is exposed, as many are in small places like Nash Street, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and give you a clear quote before any work starts.
Why book with us
- 180+ five-star Google reviews
- Quality sealants from Arbo and Everbuild
- We are fully insured
- You choose the colour before work begins
See what affects the cost and customer reviews.
FAQs for Nash Street
Do you cover Nash Street for external mastic?
Yes, Nash Street is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
Do you work for landlords with property near Berwick (Sussex) station?
Yes. We work for landlords and agents as well as householders. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Where do you work from?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few photos.
Why do you put foam in the joint first?
Backing rod controls the sealant depth and keeps it off the back of the joint. Then the sealant bonds to two faces and can move.
Will the new joint stand out?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin from the range available.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages.
Places near Nash Street
Also in Nash Street
What we do, step by step
There is not much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours for a handful of joints, longer for a whole elevation. In a small place like Nash Street, access is generally 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.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Tell us about any water getting in
- Mention any parking rules near the property
- On commercial sites, let us know about site rules
Getting a quote
There’s no standard price list. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or email us.
Advice
What external mastic looks like in Nash Street
With historic houses such as Horselunges Manor (about 2 miles east) nearby, there’s older building stock in the area around Nash Street 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. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Chiddingly Primary School, larger buildings have long runs of movement joint that eventually need resealing. For an older house near a landmark such as The Parish Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Nash Street is about 3 miles north-west of Hailsham, in East Sussex. If you need external mastic in Nash Street, please call 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover East Sussex. Nash Street is one of 289 places in East Sussex we cover for external mastic. Our Brighton page covers work nearby (15 miles or so).
We work across BN27 for external mastic and the streets around it. Neighbouring places we cover for external mastic include Lower Dicker (1 mile south-east), Upper Dicker (2 miles south), Lower Horsebridge (2 miles south-east), Tile Hurst (2 miles south-east) and Upper Horsebridge (2 miles south-east). Within a short drive, we also cover Eastbourne (8 miles south-east), Bexhill-on-Sea (12 miles east), Seaford (9 miles south-west), Lewes (9 miles west), Hailsham (3 miles south-east) and Crowborough (11 miles north).
Landmarks near Nash Street
Around Nash Street, our work takes us to homes and buildings near The Golden Cross Inn and the streets around them. The nearest railway station is Berwick (Sussex) station, roughly 3.9 miles south-west of the centre. A little further out are Sussex Farm Museum (3.3 miles north-east) and Hellingly Hospital Railway (2.6 miles east). Green spaces nearby include Selwyns Wood.