Hampshire · England
External & façade joints in New Copse, Hampshire
Problem with your movement joints in New Copse? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Plants rooting in failed movement joints
- Movement joints with cracked, split or missing sealant
- Failed seals between different materials
Signs you need external mastic in New Copse
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
Most people get in touch after spotting something like this:
- Joints where the bead has come unstuck
- Movement joints with cracked, split or missing sealant
- Failed sealant between panels on a façade
- Moss and dirt in joints with no sealant left
In the older streets around Church of St Andrew, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- What product goes in the joint
- Who turns up on the day
- When the joint can take water or movement
- The length of the guarantee
External mastic in New Copse
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall so the line blends in. We’re often asked to deal with rigid filler in a joint that should flex and brick movement joints where the sealant has split, across copings & trims, brickwork movement joints and concrete & block.
Older homes in small places like New Copse 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.
- Place
- New Copse (GU34)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to New Copse
Also in New Copse
Landlord and commercial work in New Copse
Letting agents and landlords in New Copse can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
What we do, step by step
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours for a handful of joints, longer for a whole elevation, depending on how much there is to do. For a village or hamlet like New Copse, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
Get a quote
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or email us and describe the job, and photos are welcome.
Read more
Questions from New Copse
Is New Copse within the area you cover?
Yes, New Copse is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords with property near Alton station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Do you use backing rod?
Backing rod controls the sealant depth and keeps it off the back of the joint. That way it bonds to the two sides only and can stretch.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
How long does external mastic last?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and reseal when it splits.
Is there a guarantee?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we will sort it.
Is it OK to fill a movement joint with cement?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. It needs a flexible sealant over backing rod.
Outside joints around New Copse
With historic houses such as Bentworth Hall (about 0.9 miles north-east) nearby, there’s older building stock in the area around New Copse as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as Medstead Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing. Letting a property close to Alton station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
New Copse is about 4 miles west of Alton, in Hampshire. Jobs in New Copse get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. New Copse is one of 683 towns and villages in Hampshire we cover. For nearby work, see our Southampton page (21 miles or so).
Every address in GU34 is within our area for external mastic, from the main roads to the quietest streets. If you’re just outside New Copse, we cover South Town (1 mile south), Holt End (1 mile north), Hattingley (1 mile south-west), Wivelrod (1 mile east) and Bentworth (1 mile north-east). Within a short drive, we also cover Basingstoke (9 miles north), Winchester (12 miles south-west), Fleet (14 miles north-east), Aldershot (15 miles north-east), Alton (4 miles east) and Petersfield (11 miles south-east).
Landmarks near New Copse
The closest station to New Copse is Alton station, roughly 4.3 miles east. Nearby you will also find Alton Community Hospital (3.2 miles east) and Gliding Heritage Centre (3.7 miles north-east). Not far away are King's Hill.
How we quote for external mastic
We don’t publish a price list. The quote depends on:
- The type of sealant required
- Mould in or behind the old joints
- When we can work, for business premises
- Access and height
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
Asking for a quote
What to tell us when you ask for a quote:
- Whether it has been sealed before
- Access, such as stairs, a lift or height
- The address or postcode of the job
- A few photos by email, if you can
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
What sealant work can’t fix
It helps to know what we cannot do:
- Subsidence or other structural problems
- Adding movement joints to masonry that has none
- Cracks in the bricks or render themselves, away from the joints
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Copings & trims
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
Leave it or put it right?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. Where a wall is exposed, as many are in small places like New Copse, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why New Copse clients choose us
- We never seal over old sealant
- We leave the area clean and tidy
- Approved under the ARBOMaster scheme
- We agree the colour with you first
See what affects the cost and customer reviews.
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Keep high-pressure jets off the joints
- Leave the joints unpainted unless we have said otherwise
- Show decorators and builders where the movement joints are
- Keep soil, plants and ivy away from the joints
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead over time.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.