Hampshire · England
External & façade joints in Holt End, Hampshire
Specialist external mastic for Holt End: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Sealant that has lost its bond to the brick or render
- Joints pointed up with cement by mistake
- Movement joints with cracked, split or missing sealant
How we handle external mastic in Holt End
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing, and we do not skip that step. We are often asked to deal with panel joints letting water in and movement joints filled with mortar instead of sealant, on brickwork movement joints, joints between brick and frames and concrete & block.
Outside joints can only be sealed when they’re dry, so work in Holt End is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
There’s a 12-month guarantee on every job, large or small.
- Place
- Holt End (GU34)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Common problems we fix in Holt End
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.
Most people get in touch after spotting one of these:
- Damp patches traced to an open external joint
- Leaking joints around cladding and façade panels
- Weathered mastic that no longer stretches
- Movement joints with cracked, split or missing sealant
Letting a property close to Alton station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Comparing quotes
- Which sealant they’ll use, and why
- Whether all the old sealant comes out first
- How long the guarantee is
- Is VAT in the price?
How to look after the new joints
A little care helps the new joints last. We recommend:
- Keep soil, plants and ivy away from the joints
- Leave the joints unpainted unless we have said otherwise
- Point out the joints to other trades
- Never let anyone fill a movement joint with mortar
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
A joint that has stopped moving pushes the movement elsewhere, normally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Nearby places to Holt End
What else we do in Holt End
Questions from Holt End
Can you help a landlord with a rental near Alton station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Do you cover Holt End for external mastic?
Yes, Holt End is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.
Can you reach joints on upper floors?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher work, tell us about the building and we will confirm what’s needed.
Is the work guaranteed?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Where are you based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
How long will you be here?
Typically it takes a few hours to a few days, depending on the length of joint and the access. Larger jobs naturally take longer, and we’ll tell you how long to expect.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Landlord and commercial work in Holt End
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
In hotels, rooms out of use cost money, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Leave it or put it right?
A failed movement joint lets water into the wall. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Around Holt End, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Why Holt End customers choose us
- More than 20 years in sealant work
- Fully insured
- Anti-fungal silicone where joints get wet
- White, clear, grey or coloured to suit, where the product allows
See what affects the cost and customer reviews.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
What affects the quote in Holt End
For a quick quote, just ask. The main things that affect it are:
- Any mould that needs treating
- How easy the joints are to reach
- The number of rooms or windows
- Working hours on commercial sites
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Whether it’s a home or a business
- Whether it has been sealed before
- Any access issues, like height or stairs
- The problem you’ve noticed
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details, and photos are welcome.
What we do, step by step
The work is kept neat and contained to the joints we are treating. The job usually takes a few hours for a handful of joints, longer for a whole elevation. Somewhere like Holt End needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. 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.
- 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.
Preparing for the visit
- Let us know about parking restrictions
- Where the joints are inside, avoid wetting them before we arrive
- Plan for the work area to be out of bounds to pets and children
Getting a quote
Want a quote for external mastic? Please call 0345 464 0079 or email us with a few details. We’ll explain what we’d do and send you a clear quote before any work starts.
Read more
External mastic in Holt End: 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. With historic houses such as Bentworth Hall (about 0.3 miles east) nearby, there’s older building stock in the area around Holt End as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Managing a site like St Mary's Bentworth Church of England Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. For an older house near a landmark such as St. Mary's Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Holt End is about 4 miles west of Alton, in Hampshire. Our applicators cover external mastic for homeowners, landlords and businesses in Holt End and nearby. We cover 683 towns and villages across Hampshire. Reading is on our list too, around 21 miles away.
Postcode districts we cover here for external mastic: GU34. Other places close to Holt End include Bentworth (1 mile north-east), New Copse (1 mile south), Wivelrod (1 mile south-east), Thedden (1 mile east) and South Town (1 mile south). We also work in nearby towns such as Basingstoke (8 miles north), Winchester (13 miles south-west), Fleet (13 miles north-east), Aldershot (15 miles north-east), Alton (4 miles east) and Petersfield (11 miles south-east).
Landmarks near Holt End
Typical jobs here are in homes near The Star Inn and the streets around them. Holt End’s nearest station is Alton station, roughly 3.9 miles east of the centre. Well-known places in the area include Alton Community Hospital (3 miles east) and Gliding Heritage Centre (2.9 miles north-east). Not far away are King's Hill.