Oxfordshire · England
External Mastic in Fencott
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Fencott and across Oxfordshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Sealant pulling away from one side of the joint
- Movement joints with cracked, split or missing sealant
- Hard, crazed mastic that has stopped moving
Quotes for external mastic in Fencott
For a quick quote, just ask. What matters most is:
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
- Whether the work is at height
- The size of the job
What you pay reflects the work, not guesswork. That is why we ask a few questions first.
What we need to know
To help us quote quickly, let us know:
- The type of property
- Pictures of the joints, sent by email
- Roughly how big the job is
- Any previous sealing or DIY work
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, call 0345 464 0079 or email us.
External mastic in Fencott, done properly
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing rarely last long. We strip the joint back and start again. If you’re dealing with brick movement joints where the sealant has split and old sealant gone brittle and cracked, we can put it right, on brickwork movement joints, render & cladding joints and façade panels alike.
Somewhere as small as Fencott, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.
Big or small, you get the same 12-month guarantee.
- Place
- Fencott (OX5)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The process
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours to a few days, depending on the length of joint and the access in most cases. Somewhere as small as Fencott, 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.
- 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.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Mention any tricky access
- Move anything stored near the joints
- For business premises, tell us about site rules or sign-in
Get a quote
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or send us an email with the details.
Related advice
Common questions in Fencott
Can you help a landlord with a rental near Islip station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Do you cover Fencott for external mastic?
Yes. We work across London and the South East, and Fencott is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
How do I get a quote for external mastic in Fencott?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
What is backing rod for?
We fit closed-cell backing rod wherever the joint depth needs controlling. It controls the depth and stops the sealant bonding to the back.
Can you seal joints between render and window frames?
Yes. Joints between dissimilar materials are a big part of external work. We use a flexible sealant suited to both surfaces with primer where required.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Is there a guarantee?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
How do you reach high-level joints?
Each building is different. Tell us the height, the number of joints and what’s below them and we’ll confirm how they can be reached safely.
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Point out the joints to other trades
- Clear growth from the base of walls and joints
- Walk round the building once a year and look at the joints
- Keep high-pressure jets off the joints
Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead over time.
Once a joint cannot move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.
Why act early in Fencott
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render near the open joint, so the damage spreads beyond the joint. Older cottages and farmhouses around Fencott can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why us?
- Domestic, commercial and hotel work
- A sealant colour to suit the surroundings
- We never seal over old sealant
- 12-month guarantee on every job
Places near Fencott
What else we do in Fencott
What external mastic looks like in Fencott
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. With historic houses such as Boarstall Tower (about 3.2 miles south-east) nearby, there’s older building stock in the area around Fencott as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Rented homes near Islip station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. Boarstall Tower, about 3.2 miles south-east, is one of the historic houses in the wider area around Fencott. Schools such as Charlton-on-Otmoor Church of England Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
Fencott is about 4 miles south of Bicester, in Oxfordshire. For external mastic in and around Fencott, please ring 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Oxfordshire. Across Oxfordshire, we cover 443 places, Fencott among them. Oxford is on our list too, about 7 miles from Fencott.
Here we cover the OX5 postcode area for external mastic. Neighbouring places we cover for external mastic include Murcott (1 mile south-east), Charlton-on-Otmoor (1 mile west), Merton (1 mile north), Upper Arncott (2 miles east) and Wendlebury (2 miles north-west). Larger places within reach include Oxford (7 miles south-west), Bicester (4 miles north), Abingdon-on-Thames (12 miles south-west), Witney (14 miles west), Thame (11 miles south-east) and Kidlington (5 miles west).
Local landmarks in Fencott
In Fencott, that means homes and buildings near The Crown pub, among other places. The closest station to Fencott is Islip station, roughly 3.2 miles west of the centre. Other landmarks nearby include Bicester Avenue (3.2 miles north) and Bicester Community Hospital (3.8 miles north). For a walk, there’s Otmoor RSPB reserve and Graven Hill.
Landlord and commercial work in Fencott
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
When something else is needed
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Cracked brickwork or render that needs a builder or plasterer
- Adding movement joints to masonry that has none
- Structural movement, which needs a surveyor or engineer
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before you book.
Where we work in Fencott
- Concrete & block
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Copings & trims
- Brickwork movement joints