Hampshire · England
External & façade joints in Ashley, Hampshire
External mastic for Ashley, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Weathered mastic that no longer stretches
- Brick movement joints where the sealant has split
- Failed seals between different materials
Surface by surface
Cladding and façade panels
Panels heat up and cool down quickly, so the joints work hard every day. The sealant is chosen with that in mind.
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. We prime where the product needs it.
External mastic in Ashley
A movement joint is a deliberate break that lets a wall expand and contract. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. If you have failed seals between different materials and damp patches traced to an open external joint, we can put it right, whatever the surface.
In and around Ashley, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Where
- Ashley (BH25, SO41)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY versus a professional finish
What a professional job adds is preparation and the right 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.
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.
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Keep movement joints as flexible joints, not mortar
- Clear growth from the base of walls and joints
- Look over the joints every year, ideally after winter
- Show decorators and builders where the movement joints are
Only paint over the joint if we’ve confirmed the sealant can take paint. Many exterior sealants aren’t designed to be painted, and paint can crack as the joint moves.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick which cost more to put right than the joint.
Towns and villages near Ashley
Other services in Ashley
Leave it or put it right?
Sealing over the top of old mastic doesn’t hold for long. New sealant does not bond well to old, weathered sealant, so the old joint is cut out fully first. In an older home around Ashley, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
The cost depends on how much there is to do, how hard the old material is to remove and access to the work. We give a clear quote before any work starts.
Why choose Mr Mastic in Ashley
- We’re fully insured
- Colour picked to suit the job
- A choice of colours where the product allows
- Anti-fungal sanitary silicone in wet areas
See what affects the cost and what customers say.
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Cracked brickwork or render that needs a builder or plasterer
- Subsidence or other structural problems
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Surfaces we seal
- Concrete & block
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
- Façade panels
- Render & cladding joints
The process
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from a few hours to several days, depending on the building. A visit to Ashley is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Tell us if parking is tricky
- Tell us about any water getting in
- Mention any tricky access
Ask for a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
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Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, 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.
If you manage several properties in or around Ashley, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
External mastic in Ashley: local notes
Ashley is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near New Milton station, split movement joints are easy to miss on a rental until damp shows inside. For site and facilities teams at buildings such as Ashley Junior School, larger buildings have long runs of movement joint that eventually need resealing. Homes close to St. Peter's Church include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Ashley is about 4 miles west of Lymington, in Hampshire. Every kind of property in Ashley is covered for external mastic, old or new, large or small. Every job comes with our one-year guarantee. Ashley is one of 683 towns and villages in Hampshire we cover for external mastic. There’s also a page for Southampton, roughly 15 miles from Ashley.
We cover every part of BH25 and SO41 for external mastic. Streets in the area include Franklin Road, Miller Close and Manor Road. We also cover New Milton (1 mile south-west), Hordle (1 mile east), Bashley (1 mile north-west), Tiptoe (1 mile north-east) and Barton on Sea (2 miles south-west). Within a short drive, we also cover Totton (12 miles north-east), Lymington (4 miles east), Hythe (13 miles north-east), Ringwood (8 miles north-west), Dibden Purlieu (12 miles north-east) and Marchwood (12 miles north-east).
Local landmarks in Ashley
We work in homes and buildings around The Plough Public House, The Arnewood School and Ballard School and the streets around them. For rail, the closest station is New Milton station, about 0.7 miles south-west. A little further out are Sammy Miller Motorcycle Museum (1.4 miles west) and Lymington New Forest Hospital (4.3 miles east). Not far away are Milford on Sea LNR.
Ashley: your questions answered
Do you work for landlords with property near New Milton station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Does living near the coast affect external mastic in Ashley?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can you match the colour of my brickwork?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We choose the closest to your brick or render.
When will the joints need doing again?
That varies with the weather the wall faces, how much it moves and the sealant used. Treat it as a maintenance item and look at it yearly and renew it when it starts to fail.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
How much does external mastic cost in Ashley?
It depends on the job, so we quote each one individually. For a quick quote, call 0345 464 0079 or drop us an email with a short description of the job.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Where is Mr Mastic based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.