Hampshire · England
External & façade joints in Hook, Hampshire
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Hook and across Hampshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Old sealant gone brittle and cracked
- Panel joints letting water in
- Movement joints with cracked, split or missing sealant
How we handle external mastic in Hook
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we will confirm what’s needed to reach them safely. Typical jobs include moss and dirt in joints with no sealant left and sealant that has lost its bond to the brick or render, on façade panels, brickwork movement joints and copings & trims.
Around Hook, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in.
There’s a 12-month guarantee on every job, large or small.
- Where
- Hook (SO31, PO14)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How the visit works
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to several days, depending on the building. For a village or hamlet like Hook, the journey is planned in advance: 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.
Getting ready for the visit
- Clear the area around the work
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you’re ready, ring 0345 464 0079 or send us an email.
Read more
Different surfaces, different methods
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that’s happened, we rake it out and reseal it properly.
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Hook questions
Do you work for landlords with property near Swanwick station?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Do you cover smaller places like Hook?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose. A flexible sealant is the right fill.
Is the work guaranteed?
Yes, always. Each job is guaranteed for twelve months, large or small.
Are you fully insured?
Yes. We are fully insured.
Leave it or put it right?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. In a small place like Hook, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why book with us
- One-year guarantee on every job
- Tidy, careful work
- Anti-fungal silicone where joints get wet
- Colour agreed with you before work begins
Read our cost guide and our reviews.
Landlord and commercial work in Hook
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Damp that isn’t coming from the joint
- Movement that’s more than a sealant joint can take
- Adding movement joints to masonry that has none
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before booking.
Surfaces we seal
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Copings & trims
- Façade panels
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Keep high-pressure jets off the joints
- Tell anyone working on the walls about the movement joints
- Keep water from gutters off the wall
- Don’t let climbing plants root in the sealant
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
Walls and rooflines in Hook
Hook is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Locks Heath Infant School? Then larger buildings have long runs of movement joint that eventually need resealing. Letting a property close to Swanwick station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies. In the older streets around Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Hook is about 1 mile south-east of Warsash, in Hampshire. For external mastic in and around Hook, it’s easy to get a quote: please call 0345 464 0079 or email us. We are based in Crawley and cover Hampshire, Hook included. We cover 683 towns and villages across Hampshire, large and small. Southampton is on our list too, about 7 miles from Hook.
Jobs for external mastic in SO31 and PO14 is quoted and booked the same way as anywhere else. Other places close to Hook include Abshot (1 mile east), Hook Park Estate (1 mile south-west), Titchfield Common (1 mile north-east), Warsash (1 mile north-west) and Locks Heath (1 mile north). Within a short drive, we also cover Winchester (15 miles north), Gosport (6 miles south-east), Havant (13 miles east), Eastleigh (9 miles north), Fareham (4 miles east) and Horndean (12 miles east).
Landmarks near Hook
We work in homes and buildings around Hamble Common, Jolly Farmer Public House and Brookfield Community School and Language College, among other places. Hook’s nearest station is Swanwick station, about 2.2 miles north. A little further out are St Andrew's Castle (1.8 miles west) and Carron Row Farm Museum (2.2 miles north-east). Not far away are Holly Hill Woodland Park.
Towns and villages near Hook
More services for Hook
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.