Hampshire · England
External & façade joints in High Cross, Hampshire
Professional external mastic in and around High Cross, with old sealant always removed completely and a 12-month guarantee.
- Leaking joints around cladding and façade panels
- Old sealant gone brittle and cracked
- Cracked joints where brick meets render or frames
Honest limits
To be straight with you, there are a few things sealant will not fix:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracked brickwork or render that needs a builder or plasterer
- Movement that is more than a sealant joint can take
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Where we work in High Cross
- Copings & trims
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
- Concrete & block
- Render & cladding joints
About our external mastic in High Cross
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. Common call-outs are for panel joints letting water in and weeds or debris growing in open joints, on render & cladding joints, copings & trims and concrete & block.
In a village or hamlet like High Cross, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.
- Place
- High Cross (GU32)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Also near High Cross
What else we do in High Cross
Landlords, agents and businesses in High Cross
For anyone letting property in or around High Cross, several properties can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Can I do it myself?
If you are set on DIY, put the effort into 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.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Questions from High Cross
Can you help a landlord with a rental near Petersfield station?
Yes. We work for landlords and agents as well as homeowners. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you cover High Cross for external mastic?
Yes, High Cross is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Is it worth trying it myself?
It depends on the job. 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 long before the joint can be used?
Cure times vary by product and the temperature. We tell you how long to leave it before we go.
Is there a guarantee?
Yes: twelve months. If anything is not right with the work within the year, let us know and we’ll sort it.
Why do you put foam in the joint first?
The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Will there be a smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
What happens on the day
When we arrive, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. The work generally takes anything from a few hours to several days, depending on the building. For a village or hamlet like High Cross, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip 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.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
- Move anything stored near the joints
Getting a quote
For a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.
Advice
What we’re called out for in High Cross
Weeds, moss and debris in a joint are a sign the sealant has gone. Roots and dirt hold water against the wall and make things worse.
These are the problems we’re asked about most:
- Damp patches traced to an open external joint
- Gaps where render, brick and frames meet
- Rigid filler in a joint that should flex
- Failed sealant between panels on a façade
If you look after a building such as Froxfield Church of England Primary School, its movement joints, gutters and trims need looking after like any other building’s.
What your quote should include
- The length of the guarantee
- Whether you can choose the colour
- When the joint can take water or movement
- What happens if the job turns out different
Surface by surface
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it or an approved alternative. Send us any details you have about the façade.
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
External mastic in High Cross: local notes
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.
If you live in an older home near Church of St Peter, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Rented homes near Petersfield station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
High Cross is about 3 miles north-west of Petersfield, in Hampshire. Homes, rented property, offices and hotels in High Cross is covered for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. We cover 683 towns and villages across Hampshire. There’s also a page for Portsmouth, roughly 16 miles from High Cross.
Every address in GU32 is covered for external mastic, from the main roads to the quietest streets. That includes homes and businesses on High Cross Lane, Dellfield and Deans Dell. Neighbouring places we cover for external mastic include Froxfield Green (1 mile south-west), Oakshott (2 miles north-east), Langrish (2 miles south), Stroud (2 miles south) and Steep (2 miles east). Larger places within reach include Winchester (15 miles west), Havant (12 miles south), Horndean (9 miles south), Alton (8 miles north), Waterlooville (11 miles south) and Petersfield (3 miles south-east).
What’s near High Cross
High Cross’s nearest station is Petersfield station, roughly 2.6 miles south-east. Nearby you will also find Petersfield Community Hospital (2.7 miles south-east) and Bear Museum (3.1 miles south-east). Open spaces near High Cross include Wheatham Hill and Liss Riverside Railway Walk South.
What affects the cost of external mastic
There’s no set price list, because jobs vary so much. What we look at:
- The number of rooms or windows
- How easy the joints are to reach
- Which sealant suits the joint
- The old material and how stubborn it is
Combining jobs into one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We will give you a clear price for the lot.
What to tell us for a quote
When you call or email, these details help:
- What’s wrong with the joints now
- Pictures of the joints, sent by email
- Roughly how big the job is
- Access, such as stairs, a lift or height
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.