Hampshire · England
External & façade joints in Stanmore, Hampshire
Problem with your movement joints in Stanmore? We remove the old material, prepare the joints and seal them properly.
- Moss and dirt in joints with no sealant left
- Joints with sealant missing in places
- Sealant pulling away from one side of the joint
How we handle external mastic in Stanmore
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it and we use one wherever it does. We’re often asked to deal with failed seals between different materials and leaking joints around cladding and façade panels, on brickwork movement joints, copings & trims and concrete & block.
In and around Stanmore, older properties sit alongside newer ones, each with its own outside joints. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
Every job comes with our one-year guarantee.
- Place
- Stanmore (SO22, SO23)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
The work is kept neat and contained to the area we are working on, so you can carry on as normal. The job generally takes a few hours for a handful of joints, longer for a whole elevation. In a smaller place like Stanmore, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First we look over the joints with you, agree which to renew and talk through access.
- 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.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- Tell us if parking is tricky
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
Questions from Stanmore
Do you work for landlords with property near Winchester station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Do you cover Stanmore for external mastic?
Yes, Stanmore is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
How often do external joints need resealing?
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.
How much does external mastic cost in Stanmore?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or drop us an email with a short description of the job.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
How do you reach high-level joints?
That depends on the building and the joints. We work on joints that can be reached safely. Tell us about the building and we’ll confirm what access is needed.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Do you guarantee your work?
Yes. Every job comes with our 12-month guarantee.
Also near Stanmore
What else we do in Stanmore
How the job changes by surface
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod coloured to suit the wall.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
When to call us in Stanmore
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.
The most common problems we see are:
- Damp patches traced to an open external joint
- Failed sealant between panels on a façade
- Plants rooting in failed movement joints
- Joints with sealant missing in places
For site and facilities teams at buildings such as Stanmore Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before you book
- What happens if the job turns out different
- Which sealant they’ll use, and why
- How long the guarantee is
- Whether you can choose the colour
Why deal with it now?
Water gets in through a failed movement joint. Resealing early keeps the job to the joint itself, rather than the wall around it. In an older home around Stanmore, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Combining jobs into one visit is normally more efficient than separate visits. You’ll get one clear quote for the whole job.
Why book with us
- A choice of colours where the product allows
- Quality sealants from Arbo and Everbuild
- We are fully insured
- One-year guarantee on every job
Take a look at our cost guide or our reviews.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Movement that is more than a sealant joint can take
- Damp that isn’t coming from the joint
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Copings & trims
- Render & cladding joints
- Concrete & block
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
Stanmore buildings and 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.
Rented homes near Winchester station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. For an older house near a landmark such as Saint Luke, an extension built onto an older house moves differently, and the joint between them takes the strain.
Stanmore is about 1 mile south-west of Winchester, in Hampshire. Stanmore gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Stanmore is one of 683 towns and villages in Hampshire where we work. We also work in Southampton, around 10 miles away.
Postcode districts we cover here for external mastic: SO22 and SO23. We cover properties on Fox Lane, Kings Road and Romsey Road and the roads around them. Stanmore is on the A3090, so it’s easy for us to get to. Neighbouring places we cover for external mastic include Badger Farm (1 mile south), St Cross (1 mile south-east), Oliver's Battery (1 mile south-west), Winchester (1 mile north-east) and Weeke (1 mile north). Further out, we also cover Eastleigh (6 miles south), Fareham (15 miles south-east), Andover (13 miles north-west), Totton (12 miles south-west), Chandler's Ford (5 miles south-west) and Hedge End (10 miles south).
Around Stanmore
Typical jobs here are in homes near White Horse Public House, Kings' School and St. Cross Park. Stanmore’s nearest station is Winchester station, roughly 1.2 miles north-east. A little further out are Winchester Castle (0.9 miles north-east) and Balfour Museum of Hampshire Red Cross History (0.5 miles north-west). Not far away are Winnall Moors and Twyford Down.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, 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.
If you’ve already had a go yourself, that’s fine. We cut it out and start again.