Hampshire · England
External Mastic in Emery Down
External mastic for Emery Down and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Hard, crazed mastic that has stopped moving
- Water getting into walls through failed joints
- Cracked joints where brick meets render or frames
How we handle external mastic in Emery Down
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. Common call-outs are for movement joints with cracked, split or missing sealant and panel joints letting water in, on concrete & block, brickwork movement joints and façade panels.
Around Emery Down, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Place
- Emery Down (SO43)
- Region
- Hampshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Nearby places to Emery Down
Also in Emery Down
What we do, step by step
On the day, we look over the joints with you first. We protect the surfaces around the joints before work begins. The work generally takes a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Emery Down, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Mention any parking rules near the property
- Keep children and pets away from the work area
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or email us.
Read more
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Walk round the building once a year and look at the joints
- Fix overflowing gutters above sealed joints
- Ask before painting over external sealant
- Do not let climbing plants root in the sealant
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
FAQs for Emery Down
Do you work for landlords with property near Ashurst New Forest station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Is Emery Down in your area for external mastic?
Yes. Our work covers London and the South East, and Emery Down is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
How long does the job take?
It depends on the size of the job, but most jobs take a few hours to a few days, depending on the length of joint and the access. We’ll give you a better idea when we quote.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Emery Down.
How long should I leave it?
It depends on the product. Before we leave, we’ll tell you the cure time.
Is there a guarantee?
Yes. Each job is guaranteed for twelve months.
Honest limits
Before you book, it’s worth knowing the limits:
- Render that is blown, hollow or coming away
- Cracks in the bricks or render themselves, away from the joints
- Cutting new joints into brickwork, which is building work rather than sealant work
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.
What we seal
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Copings & trims
- Concrete & block
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.
How the job changes by surface
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
What happens if it’s left?
Sealing over the top of old mastic doesn’t hold for long. New sealant does not bond well to old, weathered sealant, so we always take the old sealant out. Around Emery Down, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
Why us?
- Domestic, commercial and hotel work
- An ARBOMaster approved applicator
- 180+ five-star Google reviews
- Quality sealants from Arbo and Everbuild
Walls and rooflines in Emery Down
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Christ Church, the joints between older walls, newer extensions and the roofline need a sealant that can move. Letting a property close to Ashurst New Forest station? Then outside joints that have cracked can let damp into a rental, so check them between lets. For site and facilities teams at buildings such as St Michael and All Angels CofE Infant School, its movement joints, gutters and trims need looking after like any other building’s.
Emery Down is about 5 miles south-west of Totton, in Hampshire. Jobs in Emery Down get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Emery Down is one of 683 towns and villages in Hampshire we cover. Our Southampton page covers work nearby (9 miles or so).
Postcode districts we cover here for external mastic: SO43. If you need external mastic at a property on Garden Close, Northerwood Avenue and Silver Street or anywhere close by, our applicators can take on the job. We also cover Lyndhurst (1 mile east), Balmerlawn (3 miles south), Ashurst (4 miles north-east), Brockenhurst (4 miles south) and Colbury (4 miles north-east). Larger places within reach include Eastleigh (12 miles north-east), Totton (5 miles north-east), Chandler's Ford (12 miles north-east), Hedge End (13 miles east), Lymington (8 miles south) and Romsey (10 miles north-east).
Landmarks near Emery Down
Typical jobs here are in homes near The Swan Inn and the streets around them. Emery Down’s nearest station is Ashurst New Forest station, roughly 2.9 miles north-east of the centre. Well-known places in the area include Ashurst Hospital (3.1 miles north-east) and National Dairy Museum (3.9 miles east). Open spaces near Emery Down include Copythorne Common.