Hampshire · England
External & façade joints in Ampfield, Hampshire
Professional external mastic in and around Ampfield, with old sealant always removed completely and a one-year guarantee.
- Joints pointed up with cement by mistake
- Failed sealant between panels on a façade
- Rain getting behind render or cladding at a joint
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Check external joints each spring
- Do not let climbing plants root in the sealant
- Show decorators and builders where the movement joints are
- Keep movement joints as flexible joints, not mortar
Only paint over the joint if we’ve confirmed the sealant can take paint. Paint can crack on a flexible joint and spoil the finish.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.
How we handle external mastic in Ampfield
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. If you have joints pointed up with cement by mistake and failed seals between different materials, we can help, on concrete & block, copings & trims and joints between brick and frames alike.
Around Ampfield, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
A 12-month guarantee comes as standard, so you’re covered after we have gone.
- Where
- Ampfield (SO51)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
External mastic in Ampfield: local notes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Ampfield Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing. If you live in an older home near Church of St Mark, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Ampfield is about 2 miles north-west of Chandler's Ford, in Hampshire. We provide external mastic to homeowners, landlords and businesses in Ampfield and the surrounding area, as part of our work across Hampshire. Our Hampshire coverage runs to 683 places, Ampfield among them. Southampton is on our list too, around 6 miles away.
Postcode districts we cover here for external mastic: SO51. Whether your property is on Morleys Green, Green Pond Lane and Lower Farm Lane or a nearby road, we can help. With the A3090 close by, Ampfield is easy for our applicators to reach. Other places close to Ampfield include Gosport (1 mile south-west), Knapp (1 mile north-east), Broadgate (1 mile east), Crampmoor (1 mile west) and Lower Slackstead (1 mile north). Within a short drive, we also cover Winchester (6 miles north-east), Eastleigh (5 miles south-east), Fareham (15 miles south-east), Andover (14 miles north), Totton (7 miles south-west) and Hedge End (8 miles south-east).
Local landmarks in Ampfield
Around Ampfield, our work takes us to homes and buildings near The Mountbatten School and White Horse Public House, among other places. The closest station to Ampfield is Chandlers Ford station, about 2.5 miles south-east. A little further out are King Johns House (3.3 miles west) and Romsey Community Hospital (2.5 miles south-west). Green spaces nearby include Emer Bog and Baddesley Common.
How it works
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take anything from a few hours to several days, depending on the building. In a small place like Ampfield, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Mention any tricky access
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or drop us an email with the details and send pictures if you have them.
Related advice
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Questions from Ampfield
Will you come out to Ampfield?
Yes, Ampfield 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.
Do you cover Ampfield for external mastic?
Yes. Our work covers London and the South East, and Ampfield is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear quote.
Is there a guarantee?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Do you work at height?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher ones, send details and we’ll confirm the access.
Are you fully insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
How we quote for external mastic
The quote reflects the job in front of us. We take into account:
- The size of the job
- Any working-time requirements on site
- The type of sealant required
- How many rooms, windows or areas are involved
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Any previous sealing or DIY work
- Where the property is
- The rough size of the job
- How we’d reach the joints
Want a quote for external mastic? Please phone 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and give you a clear price before any work starts.
Different surfaces, different methods
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. We prime where the sealant needs it before the bead.
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. We reseal them with a sealant suited to the panel material.
Landlords, agents and businesses in Ampfield
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Nearby places to Ampfield
What else we do in Ampfield
When to call us in Ampfield
Using the wrong sealant is another common reason. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, so it pulls away from the edges.
These are the problems we are asked about most:
- Plants rooting in failed movement joints
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
- Water getting into walls through failed joints
For landlords with property near Chandlers Ford station, outside joints that have cracked can let damp into a rental, so check them between lets.
Questions to ask before booking
- How long to leave it before use
- Whether they seal over old material or remove it
- What happens if the job turns out different
- Whether you can choose the colour