Hampshire · England
External & façade joints in Stockbridge, Hampshire
External mastic for Stockbridge, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Movement joints with cracked, split or missing sealant
- Water getting into walls through failed joints
- Plants rooting in failed movement joints
What the job involves on each surface
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Tell us what the building has when you get in touch.
External mastic in Stockbridge
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We take the old material out and do it properly. If you have rigid filler in a joint that should flex and hard, crazed mastic that has stopped moving, we can help, on brickwork movement joints, façade panels and joints between brick and frames alike.
Older homes in small places like Stockbridge 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.
All our work comes with our one-year guarantee.
- Place
- Stockbridge (SO20)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Stockbridge
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The product the joint needs
- The size of the job
- Whether the work is at height
- Whether old sealant or filler has to be cut out
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Whether it’s a home or a business
- What’s wrong with the joints now
- Where the job is, and your postcode
- Pictures of the joints, sent by email
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Avoid pressure-washing directly into sealant joints
- Do not let climbing plants root in the sealant
- Walk round the building once a year and look at the joints
- Check the sealant is paintable before painting near it
Only paint over the joint if we have confirmed the sealant can take paint. Many exterior sealants aren’t designed to be painted, and paint can crack as the joint moves.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.
How the visit works
Before we leave, we go over the finished joints with you. The visit itself generally takes a few hours to a few days, depending on the length of joint and the access, depending on the size of the job. For a village or hamlet like Stockbridge, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- Mention any sign-in or site rules at work premises
- Clear the area around the work
- Tell us if parking is tricky
Getting a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. Photos by email help us understand the job, and we will come back to you with a quote.
Related advice
Landlord and commercial work in Stockbridge
We work for landlords and letting agents as well as householders. Resealing between tenancies keeps a property looking cared for.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
What we are called out for in Stockbridge
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. The joint cannot move, so the wall cracks somewhere else instead.
Signs it’s time to call us include:
- Rigid filler in a joint that should flex
- Weathered mastic that no longer stretches
- Water getting into walls through failed joints
- Leaking joints around cladding and façade panels
Homes close to Church of St Peter include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Questions to ask before booking
- What the cure time is
- Whether they’re fully insured
- Who turns up on the day
- How the surfaces are prepared before sealing
Also near Stockbridge
More services for Stockbridge
Stockbridge: your questions answered
Is there a guarantee on external mastic in Stockbridge?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Can you do external mastic in Stockbridge?
Yes, Stockbridge is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear price.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
How do you reach high-level joints?
It depends on the height and the site. Low-level joints are straightforward; for higher ones, send details and we will confirm the access.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and you’ll get one quote.
Can tenants book the work?
Yes. Check with your landlord; we can send the quote to them too.
Stockbridge buildings and the weather
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Stockbridge Primary & Pre-School? Then its movement joints, gutters and trims need looking after like any other building’s.
Stockbridge is about 7 miles south of Andover, in Hampshire. Stockbridge gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Hampshire coverage runs to 683 places, Stockbridge among them. We also work in Southampton, about 14 miles from Stockbridge.
Jobs for external mastic in SO20 works the same way as everywhere else we cover. We cover properties on Old London Road, High Street and New Street and the roads around them. We also cover the places around Stockbridge: Longstock (1 mile north), Leckford (2 miles north-east), Fullerton (3 miles north-east), Cottonworth (3 miles north-east) and Chilbolton (3 miles north-east). Further out, we also cover Winchester (8 miles south-east), Eastleigh (12 miles south-east), Andover (7 miles north), Totton (14 miles south), Chandler's Ford (10 miles south-east) and Romsey (8 miles south).
Near you in Stockbridge
In Stockbridge, that means homes and buildings near Vine Inn and Test Valley School.