Hampshire · England
External & façade joints in Middle Wallop, Hampshire
External mastic across Middle Wallop and nearby, with old sealant always removed completely and a 12-month guarantee.
- Rain getting behind render or cladding at a joint
- Rigid filler in a joint that should flex
- Gaps where render, brick and frames meet
Walls and rooflines in Middle Wallop
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.
Homes close to Church of St Andrew include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain. Managing a site like Wallop Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. Rented homes near Grateley station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Middle Wallop is about 7 miles south-west of Andover, in Hampshire. Whether you are in the middle of Middle Wallop or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 683 places across Hampshire, from the larger towns to small villages. Southampton is on our list too, about 17 miles from Middle Wallop.
Postcode districts we cover here for external mastic: SO20. Streets in the area include Station Road, Knockwood Lane and Farley Street, and we cover them all. We also cover Nether Wallop (1 mile south-east), Over Wallop (1 mile north-west), Kentsboro (2 miles north-east), Fox (4 miles north) and Red Rice (4 miles north-east). Larger places within reach include Winchester (13 miles south-east), Eastleigh (15 miles south-east), Andover (7 miles north-east), Totton (15 miles south), Chandler's Ford (13 miles south-east) and Romsey (11 miles south-east).
Around Middle Wallop
Typical jobs here are in homes near The George Inn, among other places. For rail, the closest station is Grateley station, about 3 miles north-west of the centre. The countryside around Middle Wallop includes Quarley Hill.
External mastic in Middle Wallop
On houses, flats and commercial buildings across Middle Wallop, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. If you are dealing with failed sealant between panels on a façade and sealant that has lost its bond to the brick or render, we can help, on façade panels, copings & trims and joints between brick and frames alike.
External sealant needs dry, clean surfaces, so work around Middle Wallop is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
Our work is backed for twelve months.
- Where
- Middle Wallop (SO20)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Landlord and commercial work in Middle Wallop
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
How the visit works
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Middle Wallop, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Mention any sign-in or site rules at work premises
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, ring 0345 464 0079 or send us an email.
Advice
Middle Wallop questions
Is Middle Wallop within the area you cover?
Yes, Middle Wallop is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you do external mastic in Middle Wallop?
Yes, Middle Wallop is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing.
Where are you based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
What is backing rod for?
We fit closed-cell backing rod wherever the joint depth needs controlling. It controls the depth and stops the sealant bonding to the back, so the joint can move.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used before we leave.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
How long does external mastic last?
There’s no fixed answer: joints on exposed walls or with a lot of movement age sooner. A yearly look will tell you when they need doing. Every job carries our one-year guarantee.
What does external mastic cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Subsidence or other structural problems
- Cracked brickwork or render that needs a builder or plasterer
- Damp that is not coming from the joint
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before booking.
What we seal
- Brickwork movement joints
- Concrete & block
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Copings & trims
How the job changes by surface
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. Where one has been mortared, we cut it out and reseal it with sealant.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.
How we quote for external mastic
Call for a quick quote. What matters most is:
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
- When we can work, for business premises
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Any access issues, like height or stairs
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
Nearby places to Middle Wallop
What else we do in Middle Wallop
Why act early in Middle Wallop
A failed movement joint lets water into the wall and can run behind render or cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Older cottages and farmhouses around Middle Wallop can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Why book with us
- Old sealant always removed completely
- A 12-month guarantee on all work
- Anti-fungal silicone where joints get wet
- White, clear, grey or coloured to suit, where the product allows