Oxfordshire · England
Hook Norton External Mastic
Problem with your movement joints in Hook Norton? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Old sealant gone brittle and cracked
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
Landlords, agents and businesses in Hook Norton
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
If you manage several properties in or around Hook Norton, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
External mastic in Hook Norton
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where mortar or filler would crack. We work on render & cladding joints, façade panels and concrete & block, and people most often call us about sealant pulling away from one side of the joint and failed seals between different materials.
Around Hook Norton, garages, outbuildings and extensions all add to the joints on the outside of a home. Leaks generally start at a gutter end, a garage door frame or where an extension meets the house.
Each job carries a 12-month guarantee, large or small.
- Where
- Hook Norton (OX15)
- Wider area
- Oxfordshire
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Also near Hook Norton
Other services in Hook Norton
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Act on the first splits you see
- Fix overflowing gutters above sealed joints
- Clear growth from the base of walls and joints
- Look over the joints every year, ideally after winter
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal.
What happens on the day
The work is kept neat and contained to the joints we’re treating, so you can get on with your day. Expect the work to take anything from a few hours to several days, depending on the building, and we explain the cure time before we leave. In a smaller place like Hook Norton, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Tell us if parking is tricky
- Move anything stored near the joints
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
Want a quote for external mastic? Please phone 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and give you a clear price before we start.
Advice
Common problems we fix in Hook Norton
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and speed up the damage.
It’s worth asking for a quote if you see:
- Joints with sealant missing in places
- Panel joints letting water in
- Weathered mastic that no longer stretches
- Rigid filler in a joint that should flex
For an older house near a landmark such as Church of St Peter, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What to look for in a quote
- Whether they seal over old material or remove it
- How the colour is chosen
- When the joint can take water or movement
- How hidden problems are handled
Questions from Hook Norton
Can you do external mastic in Hook Norton?
Yes, Hook Norton is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing.
Will you come out to Hook Norton?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Can you seal joints between two different materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints.
Are you insured?
Yes, we are fully insured for domestic and commercial work.
Where do you work from?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Why act early in Hook Norton
The longer a joint stays open, the more water the wall takes in. In cold weather, frost can damage wet brick and render near the open joint, so the problem grows beyond the joint itself. Around Hook Norton, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why us?
- Neat joints and a tidy finish
- Colour agreed with you before any work starts
- Arbo and Everbuild products
- 20+ years of sealant experience
See what affects the cost and our reviews.
Walls and rooflines in Hook Norton
With historic houses such as Broughton Castle (about 4.8 miles north-east) nearby, there’s older building stock in the area around Hook Norton 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. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Hook Norton Church of England Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Hook Norton is about 7 miles south-west of Banbury, in Oxfordshire. Homes, rented property, offices and hotels in Hook Norton is covered for external mastic. Every job comes with our 12-month guarantee. Our Oxfordshire coverage runs to 443 places, and Hook Norton is one of them. For nearby work, see our Oxford page.
We cover every part of OX15 for external mastic. We cover properties on High Street, Station Road and Chapel Street and the roads around them. We also cover the places around Hook Norton: Swerford (2 miles south-east), Wigginton (2 miles east), South Newington (3 miles east), Little Tew (3 miles south-east) and Great Tew (4 miles south-east). We also work in nearby towns such as Banbury (7 miles north-east), Bicester (15 miles south-east), Witney (15 miles south), Kidlington (15 miles south-east), Bure Park (15 miles south-east) and Chipping Norton (5 miles south-west).
Local landmarks in Hook Norton
Locally, jobs take us to homes and businesses close to The Bell Inn, among other places. A little further out are Broughton Castle (4.8 miles north-east) and Old Forge Museum (Great Tew) (3.5 miles south-east). For a walk, there’s Woodford Bottom and Lamb's Pool.
What sealant work cannot fix
We won’t take on work that won’t last, so these are the limits:
- Movement that is more than a sealant joint can take
- Rising or penetrating damp from elsewhere in the wall
- Adding movement joints to masonry that has none
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
- Façade panels
- Concrete & block
- Brickwork movement joints
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We cut it out and start again.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.