Hampshire · England
External & façade joints in Woodlands, Hampshire
Specialist external mastic for Woodlands: careful preparation, the right product and tidy work. Call for a quick quote.
- Hard, crazed mastic that has stopped moving
- Joints with sealant missing in places
- Rain getting behind render or cladding at a joint
External mastic in Woodlands, done properly
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. Common call-outs are for hard, crazed mastic that has stopped moving and rigid filler in a joint that should flex, across façade panels, concrete & block and copings & trims.
Older homes in small places like Woodlands 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 of our work is guaranteed for twelve months.
- Location
- Woodlands (SO40)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Honest limits
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Cracking across the wall rather than at a joint
- Rising or penetrating damp from elsewhere in the wall
- Subsidence or other structural problems
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Where we work in Woodlands
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Façade panels
- Brickwork movement joints
- Concrete & block
Your questions about external mastic in Woodlands
Is Woodlands within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Ashurst New Forest station. Can you help?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
When will the joints need doing again?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges and have them redone then.
Where are you based?
Mr Mastic is based in Crawley. We cover Woodlands and the rest of Hampshire, along with the rest of our area.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
When to call us in Woodlands
Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
People generally contact us when they notice something like this:
- Panel joints letting water in
- Movement joints filled with mortar instead of sealant
- Cracked joints where brick meets render or frames
- Weathered mastic that no longer stretches
Rented homes near Ashurst New Forest station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What to look for in a quote
- Whether VAT is included
- How long the guarantee is
- Whether they’re fully insured
- What product goes in the joint
Towns and villages near Woodlands
What else we do in Woodlands
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours for a handful of joints, longer for a whole elevation. In a small place like Woodlands, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Mention any parking rules near the property
- Mention if the joints have been sealed before
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Related advice
Woodlands buildings and the weather
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Netley Marsh Church of England Infant School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Woodlands is about 2 miles south-west of Totton, in Hampshire. For external mastic in and around Woodlands, please ring 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Hampshire, Woodlands included. Woodlands is one of 683 towns and villages in Hampshire where we work for external mastic. Our Southampton page covers work nearby.
Work in SO40 is quoted and booked the same way as anywhere else. That includes homes and businesses on Alpine Road, The Crescent and Hazel Grove and the roads around them. We also cover Netley Marsh (1 mile north), Ashurst Bridge (1 mile north-east), Bartley (1 mile north-west), Hounsdown (2 miles east) and Winsor (2 miles north). We also work in nearby towns such as Winchester (15 miles north-east), Eastleigh (10 miles north-east), Fareham (15 miles east), Chandler's Ford (9 miles north-east), Hedge End (10 miles east) and Lymington (10 miles south).
Local landmarks in Woodlands
We work in homes and buildings around The New Forest pub and Hounsdown School and the streets around them. The nearest railway station is Ashurst New Forest station, roughly 0.9 miles south-east. A little further out are National Dairy Museum (1.5 miles east) and Ashurst Hospital (0.9 miles south-east). Open spaces near Woodlands include Copythorne Common.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
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 fails, we can still redo it.
Why it’s worth doing now in Woodlands
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. Around Woodlands, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What you get with us
- A sealant colour to suit the surroundings
- White, clear, grey or another colour, product permitting
- Anti-fungal sanitary silicone in wet areas
- We agree the colour with you first
What affects the quote in Woodlands
Every job gets its own quote. These are the things that affect it:
- The type of sealant required
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
- The amount of work
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- What’s wrong with the joints now
- Pictures of the joints, sent by email
- Whether it has been sealed before
- Any access issues, like height or stairs
If you are in Woodlands and need external mastic, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
What the job involves on each surface
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant.
Render joints
Render has movement joints and stop beads that need sealing. We reseal them with a flexible exterior sealant that suits the render colour.