Oxfordshire · England
External Mastic in Frilford
Sealing brickwork movement joints, render, cladding and façade joints in Frilford, with a 12-month guarantee on every job. Ask us for a quote.
- Hard, crazed mastic that has stopped moving
- Weeds or debris growing in open joints
- Rain getting behind render or cladding at a joint
When to call us in Frilford
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
It’s worth asking for a quote if you see:
- Water getting into walls through failed joints
- Sealant pulling away from one side of the joint
- Failed seals between different materials
- Joints with sealant missing in places
If you live in an older home near Church of All Saints, older walls, gutters and the joints where extensions meet them need a flexible sealant.
What to look for in a quote
- Who does the work, and how experienced they are
- What the cure time is
- What insurance they hold
- Whether VAT is included
About our external mastic in Frilford
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two where a rigid filler would soon crack. If you’re dealing with movement joints filled with mortar instead of sealant and failed seals between different materials, we can help, on concrete & block, copings & trims and brickwork movement joints alike.
Somewhere as small as Frilford, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
There’s a 12-month guarantee on every job, large or small.

- Where
- Frilford (OX13)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Frilford
Every job gets its own quote. These are the things that affect it:
- Whether the work is at height
- Whether there’s mould to deal with
- Which sealant suits the joint
- When we can work, for business premises
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 will have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
When you contact us, it’s useful to know:
- Access, such as stairs, a lift or height
- Photos by email, if that’s easy
- Roughly how big the job is
- The address or postcode of the job
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, ring 0345 464 0079 or drop us an email.
Nearby places to Frilford
What else we do in Frilford
Frilford questions
Is external mastic in Frilford guaranteed?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Do you cover Frilford for external mastic?
Yes. We work across London and the South East, and Frilford is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
Can you seal over the old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Can I do it myself?
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.
Where are you based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Can landlords and businesses book you?
Yes, we do. Domestic, commercial and hotel work are all part of what we do.
Keeping the joints in good condition
Looking after new joints is easy:
- Never let anyone fill a movement joint with mortar
- Check the sealant is paintable before painting near it
- Have failed joints looked at early
- Point out the joints to other trades
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.
How it works
We bring everything the job needs with us. Once we have agreed what’s being done, we protect the area and start. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere like Frilford needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- 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.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Where the joints are inside, avoid wetting them before we arrive
- Mention any leaks or damp you’ve noticed
Ask for a quote
We quote each job on its own. Simply ring 0345 464 0079 or email us and describe the job and send photos if you have them.
Advice
Walls and rooflines in Frilford
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Appleton Manor (about 2.6 miles north) are a reminder that the area around Frilford has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Managing a site like Abingdon Preparatory School? Then larger buildings have long runs of movement joint that eventually need resealing.
Frilford is about 3 miles west of Abingdon-on-Thames, in Oxfordshire. Jobs in Frilford get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 443 places across Oxfordshire, large and small. You can also see our page for Oxford, about 8 miles away.
We cover every part of the OX13 postcode area for external mastic and the streets around it. You will find streets such as Oxford Road and Kingston Road, and we cover them all. We also cover the places around Frilford: Frilford Heath (1 mile north), Marcham (1 mile east), Tubney (1 mile north), Fyfield (2 miles north-west) and Netherton (2 miles north-west). Further out, we also cover Oxford (8 miles north-east), Didcot (7 miles south-east), Abingdon-on-Thames (3 miles east), Witney (10 miles north-west), Carterton (12 miles north-west) and Wantage (6 miles south-west).
What’s near Frilford
In Frilford, that means homes and buildings near The White Hart Public House. Nearby you’ll also find FitzHarris Castle (3.4 miles east) and Abingdon Community Hospital (2.6 miles east). The countryside around Frilford includes Hitchcopse Pit and Cumnor Hill.
Different surfaces, different methods
Concrete and blockwork
Big joints in concrete need careful depth control. Backing rod sized to the joint sets it.
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. The old joint is removed and a sealant that bonds to both sides goes in.
What happens if it’s left?
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render, so the problem grows beyond the joint itself. Around Frilford, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Why choose Mr Mastic in Frilford
- Over 20 years’ experience
- 4.9 on Google from 180+ five-star reviews
- Arbo and Everbuild products
- We leave the area clean and tidy
Take a look at what affects the cost and what customers say.
When it isn’t the sealant
Before you book, it’s worth knowing the limits:
- Cracking across the wall rather than at a joint
- Failed render or damaged cladding panels
- Movement that’s more than a sealant joint can take
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
What we seal
- Render & cladding joints
- Façade panels
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
- Concrete & block
