Buckinghamshire · England
External & façade joints in Hill End, Buckinghamshire
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Hill End and across Buckinghamshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Leaking joints around cladding and façade panels
- Sealant that has lost its bond to the brick or render
- Rain getting behind render or cladding at a joint
When something else is needed
Sealant isn’t the answer to every problem, and we will tell you before work begins. Sealant will not put right:
- Structural movement, which needs a surveyor or engineer
- Failed render or damaged cladding panels
- Damp that is not coming from the joint
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
What we seal
- Copings & trims
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Brickwork movement joints
- Concrete & block
External mastic in Hill End, done properly
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant. We’re often asked to deal with weathered mastic that no longer stretches and movement joints filled with mortar instead of sealant, across render & cladding joints, joints between brick and frames and façade panels.
Outside joints can only be sealed when they’re dry, so work in Hill End is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Place
- Hill End (UB9)
- Wider area
- Buckinghamshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How the job changes by surface
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.
Concrete and blockwork
Concrete faces can be dusty and porous, so preparation is key. We prime where the sealant needs it before sealing.
Common questions in Hill End
Do you work for landlords with property near Rickmansworth station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Is Hill End in your area for external mastic?
Yes. Our work covers London and the South East, and Hill End is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear price.
Where do you work from?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Why do you put foam in the joint first?
Backing rod goes into deeper joints as a matter of course. It sets the sealant depth and prevents three-sided bonding.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used before we leave.
Hill End buildings and the weather
Historic houses like Ickenham Hall (about 4.1 miles south-east) are a reminder that the area around Hill End has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. 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 Harefield Baptist Church, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you look after a building such as Harefield Infant School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Hill End is about 2 miles south-west of Rickmansworth, in Buckinghamshire. Our applicators cover external mastic for homes and businesses in Hill End. Hill End is one of 263 towns and villages in Buckinghamshire we cover for external mastic. There’s also a page for London, roughly 19 miles from Hill End.
Every address in UB9 is covered for external mastic. Local streets include Hill End Road, Plough Lane and Springwell Lane. We also cover the places around Hill End: Harefield (1 mile south), Woodcock Hill (1 mile north-east), Batchworth (2 miles north-east), Mill End (2 miles north) and Batchworth Heath (2 miles east). Within a short drive, we also cover High Wycombe (11 miles west), Chesham (9 miles north-west), Marlow (13 miles west), Amersham (7 miles north-west), Beaconsfield (7 miles west) and Chalfont St Peter (3 miles west).
Near you in Hill End
Locally, jobs take us to homes and businesses close to The Harefield Academy, The Green and The King's Arms Public House and the streets around them. The closest station to Hill End is Rickmansworth station, roughly 1.9 miles north. Other landmarks nearby include Harefield Hospital (0.5 miles south) and Chiltern Open Air Museum (2.9 miles north-west). Green spaces nearby include Northmoor Hill Wood and Tumbling Bay.
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
Letting agents and landlords in Hill End can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Why deal with it now?
Running new sealant over the old bead rarely lasts. The new layer cannot bond properly to old, weathered material, so we always take the old sealant out. In a small place like Hill End, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why book with us
- Sanitary silicone with an anti-fungal additive in wet areas
- 12-month guarantee on every job
- Domestic, commercial and hotel work
- A sealant colour to suit the surroundings
Read what affects the cost or our reviews.
What we’re called out for in Hill End
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
These are the problems we’re asked about most:
- Brick movement joints where the sealant has split
- Rigid filler in a joint that should flex
- Moss and dirt in joints with no sealant left
- Panel joints letting water in
Rented homes near Rickmansworth station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Questions to ask before you book
- What preparation is included
- What the cure time is
- Whether they’re fully insured
- How long the guarantee is
Places near Hill End
Also in Hill End
What happens on the day
There is not much for you to do on the day. Show us the job and we will take it from there. The work itself takes a few hours for a handful of joints, longer for a whole elevation, including the tidy-up. Somewhere like Hill End needs a little journey planning: let us know about lanes, gates and parking. 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.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Mention any tricky access
- Where the joints are inside, avoid wetting them before we arrive
- Tell us if parking is tricky
How to get a quote
Every job is quoted individually. Simply ring 0345 464 0079 or drop us an email and describe the job, and photos are welcome.