Hampshire · England
Fox External Mastic
Problem with your movement joints in Fox? We cut out the old, prepare the joints and apply the right sealant.
- Weathered mastic that no longer stretches
- Movement joints filled with mortar instead of sealant
- Cracked joints where brick meets render or frames
How to look after the new joints
A little care helps the new joints last. Our advice:
- Keep soil, plants and ivy away from the joints
- Avoid pressure-washing directly into sealant joints
- Deal with leaking gutters that soak the joints below
- Check external joints each spring
Follow the cure time we give you before the joint is knocked or disturbed. 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. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.
How we handle external mastic in Fox
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 where a rigid filler would soon crack. Common call-outs are for movement joints filled with mortar instead of sealant and old sealant gone brittle and cracked, across façade panels, brickwork movement joints and joints between brick and frames.
In a village or hamlet like Fox, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or drop us an email.

- Location
- Fox (SP11)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What the job involves on each surface
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. They’re resealed over backing rod with a low-modulus sealant in a colour to suit the brick.
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.
Fox buildings and the weather
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Church of St Mary, the joints between older walls, newer extensions and the roofline need a sealant that can move. Schools such as Amport Church of England Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you let a flat or house near Grateley station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Fox is about 5 miles west of Andover, in Hampshire. Jobs in Fox get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Fox is one of 683 places in Hampshire we cover. Our Southampton page covers work nearby (21 miles or so).
Our applicators cover all of the SP11 postcode area for external mastic and the streets around it. If you’re just outside Fox, we cover Amport (1 mile north-east), Monxton (1 mile north-east), Abbotts Ann (2 miles east), Kentsboro (2 miles south) and Little Ann (3 miles east). We also work in nearby towns such as Winchester (15 miles south-east), Andover (5 miles east), Romsey (14 miles south), Hyde (14 miles south-east), Tidworth (5 miles north-west) and Weeke (14 miles south-east).
Near you in Fox
The nearest railway station is Grateley station, about 2.1 miles south-west of the centre. Nearby you’ll also find Andover War Memorial Hospital (4.2 miles north-east). The countryside around Fox includes Mill Lake and Anton Lakes.
Places near Fox
More services for Fox
Fox questions
Do you cover Fox for external mastic?
Yes, Fox is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Do you cover smaller places like Fox?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and we will quote it together.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
When will the joints need doing again?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Every job carries our one-year guarantee.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Why it’s worth doing now in Fox
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. Around Fox, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
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. The price is agreed before we begin.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- Sanitary silicone with an anti-fungal additive in wet areas
- Sealant colour chosen to suit
- Fully insured
See what affects the cost and what customers say.
What affects the cost of external mastic
There’s no set price list. The quote depends on:
- Working hours on commercial sites
- The number of rooms or windows
- The size of the job
- The type of sealant required
Doing several joints on one visit is usually more efficient than separate visits. We will give you a clear price for the lot.
What we need to know
When you contact us, these details help:
- If someone has resealed it before
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- The problem you’ve noticed
There’s no standard price list. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or email us.
How it works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours for a handful of joints, longer for a whole elevation, depending on the size of the job. Somewhere like Fox needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided 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.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about parking restrictions
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Advice
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
