Hampshire · England
External & façade joints in Eastrop, Hampshire
Our applicators work in Eastrop on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Damp patches traced to an open external joint
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
How we handle external mastic in Eastrop
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement where mortar or filler would crack. Typical jobs include failed sealant between panels on a façade and damp patches traced to an open external joint, on brickwork movement joints, façade panels and joints between brick and frames.
In and around Eastrop, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
Each job carries a 12-month guarantee.
- Where
- Eastrop (RG21, RG24)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why act early in Eastrop
Running new sealant over the old bead rarely lasts. New sealant does not bond well to old, weathered sealant, so we always take the old sealant out. In a smaller place like Eastrop, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
The cost reflects the work involved, not guesswork. That is why we ask about the job first and give you a clear quote before any work starts.
Why us?
- Quality sealants from Arbo and Everbuild
- Any old sealant cut out fully, not covered over
- A 12-month guarantee on all work
- Tidy, careful work
Read what affects the cost or customer reviews.
Landlord and commercial work in Eastrop
We also work for property managers and facilities teams in Eastrop and across Hampshire. Several sites can be quoted together.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Signs you need external mastic in Eastrop
Sometimes a movement joint was filled with mortar or a rigid filler. The joint can’t move, so the wall cracks somewhere else instead.
It’s worth asking for a quote if you see:
- Joints pointed up with cement by mistake
- Joints with sealant missing in places
- Gaps where render, brick and frames meet
- Rain getting behind render or cladding at a joint
If you look after a building such as The Costello School, its movement joints, gutters and trims need looking after like any other building’s.
Comparing quotes
- How hidden problems are handled
- Whether they’re fully insured
- What guarantee comes with the work
- Who turns up on the day
Aftercare tips
A little care helps the new joints last. We recommend:
- Get split or bare joints resealed while the damage is small
- Show decorators and builders where the movement joints are
- Do not let climbing plants root in the sealant
- Walk round the building once a year and look at the joints
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
Small splits are the time to act. At that stage it’s a simple cut out and reseal.
External mastic in Eastrop: local notes
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like The Vyne (about 2.9 miles north) are a reminder that the area around Eastrop has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
If you let a flat or house near Basingstoke station, split movement joints are easy to miss on a rental until damp shows inside. In the older streets around Church of St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Eastrop is about 1 mile east of Basingstoke, in Hampshire. Anywhere in RG21, we can carry out external mastic at your property. Our Hampshire coverage runs to 683 places, and Eastrop is one of them. You can also see our page for Reading, about 13 miles away.
Work in RG21 and RG24 works the same way as everywhere else we cover. Whether your property is on New Road, Vyne Road and Goat Lane or anywhere close by, we can help. Main roads around Eastrop include the A3010. Neighbouring places we cover for external mastic include Oakridge (1 mile north-west), Viables (1 mile south), Lychpit (1 mile east), Popley (1 mile north) and Old Basing (2 miles east). Further out, we also cover Farnborough (14 miles east), Fleet (11 miles east), Aldershot (14 miles east), Alton (9 miles south-east), Yateley (12 miles north-east) and Tadley (7 miles north-west).
Landmarks near Eastrop
Typical jobs here are in homes near Fairfields Primary School, Eastrop Park and The Angel pub, among other places. Eastrop has its own railway station: Basingstoke station. A little further out are Festival Place (less than half a mile west) and Basingstoke and North Hampshire Hospital (1.6 miles north-west). Open spaces near Eastrop include Farleigh Hill and Daneshill Park Woods.
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a few hours to a few days, depending on the length of joint and the access. A visit to Eastrop is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Tell us about any water getting in
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
For a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Read more
What we cannot put right
To be straight with you, some problems need a different trade:
- Loose or hollow render, which needs re-rendering
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Subsidence or other structural problems
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Eastrop
- Concrete & block
- Façade panels
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
Common questions in Eastrop
Is Eastrop in your area for external mastic?
Yes. We work across London and the South East, and Eastrop is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.
Can you help a landlord with a rental near Basingstoke station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
What do you put in the joint?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can you reach joints on upper floors?
That depends on the building and the joints. We work on joints that can be reached safely. Give us some details and we will confirm the access.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Do you have insurance?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and renew it when it starts to fail.
What affects the quote in Eastrop
We do not publish a price list, because no two jobs are the same. The quote depends on:
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
- Whether the work is at height
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
Before you ask for a quote, have a think about:
- How we’d reach the joints
- What’s wrong with the joints now
- Whether it has been sealed before
- Photos by email, if that is easy
If you are in Eastrop and need external mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.