Hampshire · England
External & façade joints in Compton, Hampshire
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Compton and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Old sealant gone brittle and cracked
- Plants rooting in failed movement joints
- Sealant pulling away from one side of the joint
External mastic for homes and businesses in Compton
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. Typical jobs include joints pointed up with cement by mistake and old sealant gone brittle and cracked, on brickwork movement joints, copings & trims and façade panels.
Older homes in small places like Compton may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Where
- Compton (SO21)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Your questions about external mastic in Compton
Is Compton within the area you cover?
Yes, Compton is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Compton in your area for external mastic?
Yes. We work across London and the South East, and Compton is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
Can you seal over the old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
When will the joints need doing again?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Every job carries our one-year guarantee.
How long will you be here?
As a guide, most jobs take a few hours for a handful of joints, longer for a whole elevation. Larger jobs naturally take longer, and we’ll tell you how long to expect.
Can tenants book the work?
We are happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all.
What else we do in Compton
Different surfaces, different methods
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that’s happened, we rake it out and reseal it properly where it can be done safely.
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. The old joint is removed and a sealant that bonds to both sides goes in.
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Make sure movement joints are not pointed over
- Keep soil, plants and ivy away from the joints
- Keep high-pressure jets off the joints
- Check the sealant is paintable before painting near it
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.
For landlords and businesses
If you manage several properties in or around Compton, several properties can be quoted together. Send us the addresses and the work at each.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
What affects the cost of external mastic
Your quote is based on your job. We take into account:
- Any working-time requirements on site
- How many areas need sealing
- Access and height
- Which sealant suits the joint
Doing several joints on one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear quote for the lot.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- The type of property
- Where the job is, and your postcode
- The rough size of the job
- Access, such as stairs, a lift or height
We don’t publish a price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or drop us an email.
External mastic in Compton: local notes
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.
Managing a site like Compton All Saints Church of England Primary School? Then its movement joints, gutters and trims need looking after like any other building’s. Homes close to Church of All Saints include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain. If you let a flat or house near Shawford station, split movement joints are easy to miss on a rental until damp shows inside.
Compton is about 3 miles south of Winchester, in Hampshire. Compton gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 683 places across Hampshire, large and small. There’s also a page for Southampton, about 8 miles away.
Work in SO21 is quoted and booked the same way as anywhere else. External mastic is available to properties on Field Way, Clease Way and Cliff Way. Neighbouring places we cover for external mastic include South Down (1 mile south), Shawford (1 mile east), Otterbourne (1 mile south), Twyford (1 mile east) and Oliver's Battery (2 miles north). Within a short drive, we also cover Winchester (3 miles north), Eastleigh (4 miles south), Fareham (13 miles south-east), Andover (14 miles north-west), Totton (10 miles south-west) and Chandler's Ford (3 miles south-west).
Around Compton
Locally, jobs take us to homes and businesses close to The Bridge Inn, Thornden School and St. Cross Park and the streets around them. For rail, the closest station is Shawford station, about 0.5 miles east. Other landmarks nearby include Balfour Museum of Hampshire Red Cross History (2.4 miles north) and Royal Hampshire County Hospital (2.8 miles north). Open spaces near Compton include Shawford Down and Twyford Down.
What we cannot put right
To be straight with you, some problems need a different trade:
- Cracks in the bricks or render themselves, away from the joints
- Walls that need new movement joints cut into them
- Structural movement, which needs a surveyor or engineer
If in doubt, call 0345 464 0079 or email us and we’ll say what we think before booking.
Surfaces we seal
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
- Concrete & block
How it works
We bring everything the job needs with us. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a handful of joints, longer for a whole elevation. In a small place like Compton, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Let us know about stairs, lifts or work at height
- Mention any sign-in or site rules at work premises
- Tell us if parking is tricky
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, ring 0345 464 0079 or send us an email.
Related advice
Leave it or put it right?
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together and it means sorting access once. Around Compton, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
Why choose Mr Mastic in Compton
- You choose the colour before work begins
- Quality sealants from Arbo and Everbuild
- Full insurance on every job
- We never seal over old sealant
Read our cost guide and customer reviews.