Oxfordshire · England
Upper Heyford External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Upper Heyford, backed by a one-year guarantee. Call for a quick quote.
- Cracked joints where brick meets render or frames
- Rain getting behind render or cladding at a joint
- Failed sealant between panels on a façade
External mastic for homes and businesses in Upper Heyford
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing and we use one wherever it does. If you’re dealing with panel joints letting water in and rigid filler in a joint that should flex, we can help.
Homes around Upper Heyford range from older cottages to newer houses, with walls and rooflines of every type. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
Each job carries a 12-month guarantee, large or small.
- Where
- Upper Heyford (OX25)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
FAQs for Upper Heyford
Will you come out to Upper Heyford?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Heyford station. Can you help?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Are you fully insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.
Do you work for hotels and businesses?
Yes. We have worked for hotels, offices and other businesses.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- Loose or hollow render, which needs re-rendering
- Damp that isn’t coming from the joint
- Cutting new joints into brickwork, which is building work rather than sealant work
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
Where we work in Upper Heyford
- Brickwork movement joints
- Copings & trims
- Façade panels
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
Nearby places to Upper Heyford
More services for Upper Heyford
Why it’s worth doing now in Upper Heyford
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost, so the problem grows beyond the joint itself. Around Upper Heyford, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Why us?
- Quality sealants from Arbo and Everbuild
- Colour picked to suit the job
- Anti-fungal silicone where joints get wet
- Every job guaranteed for a year
See what affects the cost and our reviews.
What external mastic looks like in Upper Heyford
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Heyford station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Upper Heyford is about 5 miles west of Bicester, in Oxfordshire. Whether you’re in the middle of Upper Heyford or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Upper Heyford is one of 443 towns and villages in Oxfordshire we cover. You can also see our page for Oxford, roughly 12 miles from Upper Heyford.
Jobs for external mastic in OX25 works the same way as everywhere else we cover. Streets in the area include Hampden Square, High Street and Gordon Road, and we cover them all. Close by, we work in Caulcott (1 mile south), Lower Heyford (1 mile south-west), Middleton Stoney (2 miles south-east), Somerton (2 miles north) and Ardley (2 miles north-east). Within a short drive, we also cover Oxford (12 miles south), Banbury (10 miles north), Bicester (5 miles east), Witney (14 miles south-west), Kidlington (7 miles south) and Headington Quarry (12 miles south).
Near you in Upper Heyford
Around Upper Heyford, our work takes us to homes and buildings near Barley Mow pub and the streets around them. The nearest railway station is Heyford station, about 1.8 miles west of the centre. Well-known places in the area include Bicester Community Hospital (4.8 miles south-east) and Ardley Castle (2 miles north-east).
Landlord and commercial work in Upper Heyford
If you manage several properties in or around Upper Heyford, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
What happens on the day
You don’t need to clear the whole room or building, just the space around the work. We protect the rest, and the job takes a few hours for a handful of joints, longer for a whole elevation in most cases. In a smaller place like Upper Heyford, 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 inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Tell us if parking is tricky
Ask for a quote
To get a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
Read more
Surface by surface
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant so neither cracks the other.
Signs you need external mastic in Upper Heyford
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
If you can see any of these, it’s time to have the joints looked at:
- Sealant that has lost its bond to the brick or render
- Joints with sealant missing in places
- Water getting into walls through failed joints
- Movement joints filled with mortar instead of sealant
If you live in an older home near Heyford Park Chapel, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- What guarantee comes with the work
- How hidden problems are handled
- Who turns up on the day
- Whether all the old sealant comes out first