Hampshire · England
External Mastic in Ashlett
Our applicators work in Ashlett on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Joints where the bead has come unstuck
- Gaps where render, brick and frames meet
- Joints pointed up with cement by mistake
About our external mastic in Ashlett
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We strip the joint back and start again. Typical jobs include hard, crazed mastic that has stopped moving and movement joints with cracked, split or missing sealant, on joints between brick and frames, concrete & block and render & cladding joints.
Somewhere as small as Ashlett, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.
You’re covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or send us an email.
- Place
- Ashlett (SO45)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Ashlett buildings and the weather
Ashlett is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. With historic houses such as Beaulieu Palace House (about 4.7 miles west) nearby, there’s older building stock in the area around Ashlett as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Schools such as Fawley Infant School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s. Rented homes near Hamble station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Ashlett is about 4 miles south-east of Hythe, in Hampshire. Every kind of property in Ashlett can book us for external mastic, old or new, large or small. The work is guaranteed for a year. Ashlett is one of 683 places in Hampshire we cover for external mastic. You can also see our page for Southampton, roughly 7 miles from Ashlett.
Work in SO45 works the same way as everywhere else we cover. Neighbouring places we cover for external mastic include Stonehills (1 mile south-west), Fawley (1 mile west), Sprat's Down (1 mile south), Calshot (1 mile south-east) and Blackfield (1 mile south-west). Further out, we also cover Gosport (8 miles east), Eastleigh (10 miles north), Fareham (7 miles east), Horndean (15 miles east), Totton (10 miles north-west) and Chandler's Ford (11 miles north).
What’s near Ashlett
We work in homes and buildings around The New Forest Academy and Falcon Hotel and the streets around them. The closest station to Ashlett is Hamble station, about 3.1 miles north of the centre. Well-known places in the area include Calshot Castle (1.6 miles east) and Coldeast (4 miles north-east). The countryside around Ashlett includes Mercury Marshes.
Landlord and commercial work in Ashlett
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we’re fully insured.
What affects the cost of external mastic
Call for a quick quote. What matters most is:
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- The number and length of the joints
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we will explain what it covers.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- Roughly how big the job is
- Whether it has been sealed before
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
If you’re in Ashlett and need external mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Never let anyone fill a movement joint with mortar
- Check the sealant is paintable before painting near it
- Have failed joints looked at early
- Keep water from gutters off the wall
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick which cost more to put right than the joint.
How the visit works
You don’t need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the work takes a few hours to a few days, depending on the length of joint and the access in most cases. For a village or hamlet like Ashlett, 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.
- We look at every joint and agree a colour to suit the wall.
- 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.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Try not to wet indoor joints just before the visit
- Mention any sign-in or site rules at work premises
- Keep children and pets away from the work area
How to get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Advice
Your questions about external mastic in Ashlett
Does living near the coast affect external mastic in Ashlett?
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.
Do you cover smaller places like Ashlett?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Where do you work from?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
How long before the joint can be used?
That depends on the sealant used, so please follow the time we give you when we finish.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
What’s an expansion joint in brickwork?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking and needs a flexible seal, not mortar.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or email us.
Is it OK to fill a movement joint with cement?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose. We’ll reseal it with a flexible sealant.
When to call us in Ashlett
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Most people get in touch when they notice one of these:
- Movement joints filled with mortar instead of sealant
- Failed seals between different materials
- Sealant that has lost its bond to the brick or render
- Rain getting behind render or cladding at a joint
Homes close to Church of All Saints include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- How the joint is cleaned and prepared
- The length of the guarantee
- How the colour is chosen
- What happens if they find a problem under the old sealant
How the job changes by surface
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.
Cladding and façade panels
If the façade has a specified sealant, that is what we use or an approved alternative. Send us any details you have about the façade.
Towns and villages near Ashlett
What else we do in Ashlett
Honest limits
In fairness, there are a few things sealant won’t fix:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracking across the wall rather than at a joint
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Where we work in Ashlett
- Concrete & block
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints