Hampshire · England
External & façade joints in Butlocks Heath, Hampshire
Specialist external mastic for Butlocks Heath: careful preparation, the right product and tidy work. Call for a quick quote.
- Weeds or debris growing in open joints
- Movement joints with cracked, split or missing sealant
- Joints pointed up with cement by mistake
How we handle external mastic in Butlocks Heath
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two where a rigid filler would soon crack. If you have weeds or debris growing in open joints and rigid filler in a joint that should flex, we can put it right, on render & cladding joints, copings & trims and joints between brick and frames alike.
Somewhere as small as Butlocks Heath, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.
Each job carries a 12-month guarantee, large or small.
- Location
- Butlocks Heath (SO31)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

How it works
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours to a few days, depending on the length of joint and the access. Somewhere as small as Butlocks Heath, access is often the only tricky part. 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.
- 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.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- Let us know about parking restrictions
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
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How the job changes by surface
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it and keep the sealant to the right depth.
Render joints
The face of render can be soft, so a low-modulus sealant is kinder to the joint edges. Priming is done where the sealant calls for it.
Also in Butlocks Heath
Looking after it afterwards
Aftercare is simple:
- Never let anyone fill a movement joint with mortar
- Wash walls gently around the sealant
- Show decorators and builders where the movement joints are
- Leave the joints unpainted unless we’ve said otherwise
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
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.
Landlords, agents and businesses in Butlocks Heath
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
DIY versus a professional finish
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 cut it out and start again, so tell us about it when you ask for a quote.
Butlocks Heath buildings and the weather
Butlocks Heath is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. With historic houses such as Medieval Merchant's House (about 3.2 miles north-west) nearby, there’s older building stock in the area around Butlocks Heath as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
If you live in an older home near Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you let a flat or house near Netley station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you look after a building such as Netley Abbey Infant School, larger buildings have long runs of movement joint that eventually need resealing.
Butlocks Heath is about 3 miles north-east of Hythe, in Hampshire. Our applicators cover external mastic for householders, landlords and businesses in Butlocks Heath and nearby, as part of our work across Hampshire. Butlocks Heath is one of 683 towns and villages in Hampshire where we work for external mastic.
Every address in SO31 is within our area for external mastic. External mastic is available to properties on Woolston Road, Old School Close and The Grove and the roads around them. Nearby, we also carry out external mastic in Netley (1 mile south-west), Hound (1 mile south), Old Netley (1 mile north-east), Lowford (1 mile north-east) and Bursledon (1 mile north-east). Within a short drive, we also cover Winchester (12 miles north), Gosport (10 miles south-east), Havant (15 miles east), Eastleigh (6 miles north), Fareham (6 miles east) and Horndean (14 miles east).
Near you in Butlocks Heath
Locally, jobs take us to homes and businesses close to The Hamble School, Grove Park Business and Enterprise College and Westwood Woodland Park. There’s a railway station in Butlocks Heath itself: Netley station. Nearby you’ll also find Westquay (3.4 miles north-west) and Bursledon Brickworks Industrial Museum (2.2 miles east). For a walk, there’s Mercury Marshes.
Quotes for external mastic in Butlocks Heath
We quote each job individually. These are the things that affect it:
- The size of the job
- Any mould that needs treating
- The old material and how stubborn it is
- How many areas need sealing
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Roughly how big the job is
- Where the job is, and your postcode
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it has been sealed before
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or send us an email.
Leave it or put it right?
Running new sealant over the old bead rarely lasts. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out. In a small place like Butlocks Heath, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
What you get with us
- Fully insured
- White, clear, grey or coloured to suit, where the product allows
- 20+ years of sealant experience
- Arbo and Everbuild products
See how sealant jobs are priced and our reviews.
FAQs for Butlocks Heath
Is Butlocks Heath within the area you cover?
Yes, Butlocks Heath is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I let a flat near Netley station. Can you help?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or drop us an email.
Is there any odour?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
How long should I leave it?
It depends on the product and the temperature. We tell you how long to leave it before we go.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
What does external mastic cost?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or drop us an email with a short description of the job.
