East Sussex · England
Down Street External Mastic
Movement joints in Down Street need attention? We remove the old material, prepare the joints and seal them properly.
- Joints pointed up with cement by mistake
- Failed seals between different materials
- Failed sealant between panels on a façade
External mastic in Down Street, done properly
For buildings in Down Street, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean joint faces and the right depth. If you’re dealing with gaps where render, brick and frames meet and rigid filler in a joint that should flex, we can put it right, on render & cladding joints, façade panels and copings & trims alike.
Around Down Street, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Down Street (TN22)
- Region
- East Sussex
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
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.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Also near Down Street
More services for Down Street
External mastic in Down Street: local notes
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as The Parish Church of St Andrew and St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep. For landlords with property near Uckfield station, outside joints that have cracked can let damp into a rental, so check them between lets.
Down Street is about 3 miles north-west of Uckfield, in East Sussex. Jobs in Down Street get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Down Street is one of 289 towns and villages in East Sussex we cover for external mastic. There’s also a page for Crawley, about 13 miles away.
Jobs for external mastic in TN22 works the same way as everywhere else we cover. Close by, we work in Maresfield (1 mile east), Budlett's Common (2 miles east), Newick (3 miles south-west), Founthill (3 miles south-west) and Ridgewood (3 miles south-east). Larger places within reach include Seaford (15 miles south), Lewes (9 miles south), Hailsham (13 miles south-east), Crowborough (6 miles north-east), Uckfield (3 miles south-east) and Newhaven (14 miles south).
Landmarks near Down Street
In Down Street, that means homes and buildings near West Park and the streets around them. The nearest railway station is Uckfield station, roughly 2.6 miles south-east. Nearby you’ll also find Uckfield Community Hospital (3 miles south-east) and Heaven Farm Museum (2.8 miles north-west). The countryside around Down Street includes Brickfield Meadow.
Leave it or put it right?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. In a small place like Down Street, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A failed joint rarely gets cheaper to fix by waiting. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us for an honest opinion and a quote.
Why book with us
- An ARBOMaster approved applicator
- You choose the colour before work begins
- Homes, businesses and hotels
- Neat joints and a tidy finish
Read what affects the cost or our reviews.
Landlord and commercial work in Down Street
For anyone letting property in or around Down Street, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Landlords and letting agents in Down Street can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Walk round the building once a year and look at the joints
- Show decorators and builders where the movement joints are
- Keep movement joints as flexible joints, not mortar
- Clear growth from the base of walls and joints
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage.
Common questions in Down Street
Do you cover Down Street for external mastic?
Yes, Down Street is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Can you help a landlord with a rental near Uckfield station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Are you fully insured?
Yes. We are fully insured.
How long will you be here?
It depends on the size of the job, but as a guide it takes a few hours to a few days, depending on the length of joint and the access. We’ll give you a better idea when we quote.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
How much does external mastic cost in Down Street?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or email us and let us know what needs doing and where.
When is the sealant fully cured?
It depends on the product and the temperature. Before we leave, we will tell you the cure time.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
The process
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. It normally takes anything from a few hours to several days, depending on the building. Somewhere like Down Street needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Mention any tricky access
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
Get a quote
Want a quote for external mastic? Please ring 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and give you a clear price before any work starts.
Advice
Do you need external mastic in Down Street?
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
The problems people normally mention when they call are:
- Water getting into walls through failed joints
- Gaps where render, brick and frames meet
- Weeds or debris growing in open joints
- Movement joints with cracked, split or missing sealant
For site and facilities teams at buildings such as Fletching Church of England Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Comparing quotes
- How much experience the applicator has
- Whether the sealant suits the joint
- Which colour the sealant will be
- How the surfaces are prepared before sealing
Quotes for external mastic in Down Street
Jobs vary more than people expect. The main factors:
- The old material and how stubborn it is
- Whether there’s mould to deal with
- Any working-time requirements on site
- How many areas need sealing
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Asking for a quote
What to tell us when you ask for a quote:
- How we’d reach the joints
- Photos by email, if that’s easy
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll send you a clear quote before any work starts.