Hampshire · England
Longparish External Mastic
Movement joints in Longparish need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Old sealant gone brittle and cracked
- Brick movement joints where the sealant has split
- Sealant that has lost its bond to the brick or render
Outside joints around Longparish
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Nicholas include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. Managing a site like Longparish Church of England Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
Longparish is about 5 miles east of Andover, in Hampshire. If you need external mastic in Longparish, please ring 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Hampshire, Longparish included. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. You can also see our page for Southampton, about 19 miles away.
Here we cover the SP11 postcode area for external mastic. If you need external mastic at a property on Mill Lane and Southside Road or a nearby road, our applicators can take on the job. We also cover the places around Longparish: Middleton (1 mile west), Barton Stacey (2 miles south), Egypt (3 miles south-east), Sutton Scotney (3 miles south-east) and Hunton (4 miles south-east). Further out, we also cover Basingstoke (13 miles east), Winchester (10 miles south), Andover (5 miles west), Chandler's Ford (14 miles south), Romsey (15 miles south) and Tadley (15 miles north-east).
Local landmarks in Longparish
Typical jobs here are in homes near The Cricketers Inn. For rail, the closest station is Whitchurch (Hampshire) station, roughly 3.5 miles north-east of the centre. Nearby you will also find Finkley Down Farm Museum (3.6 miles north-west) and Andover War Memorial Hospital (5.1 miles west). For a walk, there’s Anton Lakes and Mill Lake.
About our external mastic in Longparish
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. We work on brickwork movement joints, concrete & block and copings & trims, and common reasons people get in touch are joints where the bead has come unstuck and gaps where render, brick and frames meet.
Older homes in small places like Longparish may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in.
The work is covered for a year after we finish. If anything isn’t right with it, phone 0345 464 0079 or drop us an email.
- Location
- Longparish (SP11)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that is happened, we rake it out and reseal it properly.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
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.
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Cracking across the wall rather than at a joint
- Adding movement joints to masonry that has none
- Render that is blown, hollow or coming away
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
What we seal
- Façade panels
- Copings & trims
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Act on the first splits you see
- Point out the joints to other trades
- Do not let climbing plants root in the sealant
- Check external joints each spring
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years.
Longparish: your questions answered
Is Longparish within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Whitchurch (Hampshire) station. Can you help?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Will the new joint stand out?
The sealant colour is picked to suit the wall. There’s a wide choice of exterior colours.
Do you work at height?
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.
Can a movement joint be filled with mortar?
No. Cement or mortar cannot stretch, so the joint stops doing its job. If it has already been filled, we can usually cut it out and reseal it.
When will the joints need doing again?
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 renew it when it starts to fail.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint.
Can you seal joints between render and window frames?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
How we quote for external mastic
Call for a quick quote. What matters most is:
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
- Any mould that needs treating
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
Asking for a quote
To help us quote quickly, let us know:
- Any access issues, like height or stairs
- The rough size of the job
- What’s wrong with the joints now
- Whether it has been sealed before
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
When to call us in Longparish
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.
Keep an eye out for these signs:
- Cracked joints where brick meets render or frames
- Leaking joints around cladding and façade panels
- Old sealant gone brittle and cracked
- Damp patches traced to an open external joint
Rented homes near Whitchurch (Hampshire) station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Questions to ask before booking
- Is the old sealant removed completely?
- When the joint can take water or movement
- Whether you can choose the colour
- How the surfaces are prepared before sealing
Towns and villages near Longparish
More services for Longparish
How it works
You don’t need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the work takes a few hours for a handful of joints, longer for a whole elevation for a typical job. In a small place like Longparish, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs 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
- Mention any parking rules near the property
- For business premises, tell us about site rules or sign-in
Getting a quote
Every job is quoted individually. Just call 0345 464 0079 or drop us an email with the details and send pictures if you have them.