Oxfordshire · England
Shipton-on-Cherwell External Mastic
External mastic in Shipton-on-Cherwell from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant that has lost its bond to the brick or render
- Cracked joints where brick meets render or frames
- Rigid filler in a joint that should flex
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
We work for letting agents and landlords as well as homeowners. Sealant work between tenants keeps a property looking cared for.
About our external mastic in Shipton-on-Cherwell
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. Typical jobs include movement joints with cracked, split or missing sealant and gaps where render, brick and frames meet, on concrete & block, façade panels and brickwork movement joints.
In a village or hamlet like Shipton-on-Cherwell, older cottages and farm buildings often stand in the open, 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.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Location
- Shipton-on-Cherwell (OX5)
- Wider area
- Oxfordshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What else we do in Shipton-on-Cherwell
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What we’re called out for in Shipton-on-Cherwell
A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
If you can see any of these, it’s time to have the joints looked at:
- Moss and dirt in joints with no sealant left
- Movement joints filled with mortar instead of sealant
- Failed sealant between panels on a façade
- Cracked joints where brick meets render or frames
Schools such as The Marlborough Church of England School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What your quote should include
- What happens if they find a problem under the old sealant
- Whether they’re fully insured
- The length of the guarantee
- What product goes in the joint
Shipton-on-Cherwell questions
Do you cover Shipton-on-Cherwell for external mastic?
Yes. We work across London and the South East, and Shipton-on-Cherwell is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
I let a flat near Tackley station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
How long should I leave it?
Cure times vary by product and the temperature. We tell you how long to leave it before we go.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses, and we are fully insured.
How long does external mastic last?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and renew it when it starts to fail.
Are you insured?
Yes. Full insurance covers our work.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
How much does external mastic cost in Shipton-on-Cherwell?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or email us with a short description of the job.
How it works
Once we are 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 a few hours to a few days, depending on the length of joint and the access. In a small place like Shipton-on-Cherwell, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Let us know about earlier repairs to the joints
- Move anything stored near the joints
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, phone 0345 464 0079 or email us.
Advice
Walls and rooflines in Shipton-on-Cherwell
Historic houses like Blenheim Palace (about 2.5 miles west) are a reminder that the area around Shipton-on-Cherwell has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Tackley station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Homes close to Church of Holy Cross include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Shipton-on-Cherwell is about 7 miles south-west of Bicester, in Oxfordshire. For external mastic in and around Shipton-on-Cherwell, it’s easy to get a quote: please phone 0345 464 0079 or email us. We’re based in Crawley and cover Oxfordshire, Shipton-on-Cherwell included. Across Oxfordshire, we cover 443 places, and Shipton-on-Cherwell is one of them. For nearby work, see our Oxford page.
Every address in OX5 is within our area for external mastic. Close by, we work in Thrupp (1 mile south), Bunkers Hill (1 mile north-west), Woodstock (2 miles west), Begbroke (2 miles south) and Bladon (2 miles south-west). Further out, we also cover Oxford (7 miles south-east), Banbury (15 miles north), Bicester (7 miles north-east), Abingdon-on-Thames (12 miles south), Witney (9 miles south-west) and Carterton (14 miles south-west).
Around Shipton-on-Cherwell
In Shipton-on-Cherwell, that means homes and buildings near The Boat Public House. The nearest railway station is Tackley station, about 2.3 miles north of the centre. A little further out are Soldiers of Oxfordshire Museum (2.3 miles west). Open spaces near Shipton-on-Cherwell include Woodsides Meadow.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Walk round the building once a year and look at the joints
- Keep high-pressure jets off the joints
- Point out the joints to other trades
- Have failed joints looked at early
Only paint over the joint if we’ve confirmed the sealant can take paint. Many exterior sealants are not designed to be painted.
Small splits are the time to act. At that stage it’s a simple cut out and reseal with no damage behind it to deal with.
What affects the quote in Shipton-on-Cherwell
Your quote is based on your job. We take into account:
- The amount of work
- Any working-time requirements on site
- How many rooms, windows or areas are involved
- The type of sealant required
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- The rough size of the job
- The address or postcode of the job
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Why deal with it now?
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. Around Shipton-on-Cherwell, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Why us?
- 4.9 on Google from 180+ five-star reviews
- Neat joints and a tidy finish
- Full insurance on every job
- One-year guarantee on every job
Take a look at how sealant jobs are priced or what customers say.