Oxfordshire · England
External & façade joints in Horley, Oxfordshire
Our applicators work in Horley on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Sealant that has lost its bond to the brick or render
- Movement joints filled with mortar instead of sealant
- Movement joints with cracked, split or missing sealant
How we handle external mastic in Horley
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. If you’re dealing with joints pointed up with cement by mistake and sealant pulling away from one side of the joint, we can put it right, whatever the surface.
Around Horley, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in.
Big or small, you get the same 12-month guarantee.
- Where
- Horley (OX15)
- Wider area
- Oxfordshire
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Horley
Call for a quick quote. What matters most is:
- The old material and how stubborn it is
- Any working-time requirements on site
- How easy the joints are to reach
- Mould in or behind the old joints
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- How many joints, rooms or windows are involved
- The address or postcode of the job
- Photos by email, if that is easy
- If it’s domestic, commercial or a hotel
For external mastic in Horley, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
How it works
Good joint work is mostly preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes anything from a few hours to several days, depending on the building. Somewhere as small as Horley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Let us know about earlier repairs to the joints
- Mention any tricky access
Ask for a quote
Want a quote for external mastic? Please call 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Read more
Why it’s worth doing now in Horley
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. Older cottages and farmhouses around Horley can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and agree the price before starting.
Why Horley customers choose us
- Any old sealant cut out fully, not covered over
- Fully insured
- Trusted Arbo and Everbuild sealants
- Rated 4.9 stars on Google
Take a look at how sealant jobs are priced or our reviews.
When it isn’t the sealant
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracking across the wall rather than at a joint
- Walls that need new movement joints cut into them
If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before booking.
What we seal
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Façade panels
- Joints between brick and frames
- Copings & trims
Landlord and commercial work in Horley
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
We also work for property managers and facilities teams in Horley and across Oxfordshire. Several sites can be quoted together, and we’re fully insured.
What else we do in Horley
External mastic in Horley: local notes
With historic houses such as Upton House (about 3.2 miles west) nearby, there’s older building stock in the area around Horley as well as newer homes. Where a home is older, 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 Church of St Ethelreda, an extension built onto an older house moves differently, and the joint between them takes the strain. Managing a site like North Oxfordshire Academy? Then larger buildings have long runs of movement joint that eventually need resealing.
Horley is about 3 miles north-west of Banbury, in Oxfordshire. We carry out external mastic for homes and businesses in Horley and nearby, as part of our work across Oxfordshire. Horley is one of 443 places in Oxfordshire where we work. We also work in Oxford, about 25 miles from Horley.
Work in OX15 works the same way as everywhere else we cover. You will find streets such as Manor Orchard and Little Lane, all of which we cover. If you are just outside Horley, we cover Wroxton (1 mile south), Drayton (2 miles south-east), Neithrop (3 miles south-east) and Ruscote (3 miles south-east). Further out, we also cover Banbury (3 miles south-east), Chipping Norton (12 miles south-west), Grimsbury (4 miles south-east), Bloxham (5 miles south), Bodicote (5 miles south-east) and Upper Heyford (13 miles south-east).
Landmarks near Horley
Around Horley, our work takes us to homes and buildings near Red Lion pub, among other places. Horley’s nearest station is Banbury station, roughly 3.5 miles south-east. Well-known places in the area include Horton General Hospital (3.6 miles south-east) and Castle Quay Shopping Centre (3.2 miles south-east). Open spaces near Horley include Crouch Hill.
Keeping the joints in good condition
Looking after new joints is easy:
- Wash walls gently around the sealant
- Check the sealant is paintable before painting near it
- Keep soil, plants and ivy away from the joints
- Keep water from gutters off the wall
Do not paint over the new sealant unless we have said the product is paintable. Paint can crack on a flexible joint, and paint can crack as the joint moves.
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.
What we are called out for in Horley
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
Any of these means the joints need attention:
- Movement joints with cracked, split or missing sealant
- Moss and dirt in joints with no sealant left
- Rigid filler in a joint that should flex
- Hard, crazed mastic that has stopped moving
If you let a flat or house near Banbury station, split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- Whether VAT is included
- How the colour is chosen
- How much experience the applicator has
- What happens if they find a problem under the old sealant
Horley questions
Do you cover smaller places like Horley?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Banbury station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Will it make a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
What is backing rod for?
Backing rod controls the sealant depth and keeps it off the back of the joint. Then the sealant bonds to two faces and can move.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.