Oxfordshire · England
East Hagbourne External Mastic
Professional external mastic in and around East Hagbourne, with every bit of old sealant taken out first and a 12-month guarantee.
- Plants rooting in failed movement joints
- Failed seals between different materials
- Hard, crazed mastic that has stopped moving
The process
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes a few hours for a handful of joints, longer for a whole elevation, depending on the amount of work. Somewhere as small as East Hagbourne, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Mention any parking rules near the property
- For business premises, tell us about site rules or sign-in
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.
Related advice
About our external mastic in East Hagbourne
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a matching colour. We work on concrete & block, copings & trims and render & cladding joints, and people most often call us about cracked joints where brick meets render or frames and old sealant gone brittle and cracked.
Older homes in small places like East Hagbourne may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in.
Your job is guaranteed for a year, as with all our work.
- Location
- East Hagbourne (OX11)
- Region
- Oxfordshire
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Also near East Hagbourne
What else we do in East Hagbourne
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
When something else is needed
In fairness, there are a few things sealant will not fix:
- Cracking across the wall rather than at a joint
- Adding movement joints to masonry that has none
- Loose or hollow render, which needs re-rendering
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think before you book.
What we seal
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Concrete & block
- Brickwork movement joints
How we quote for external mastic
The price is agreed before any work begins. It’s based on:
- Whether old sealant or filler has to be cut out
- How many rooms, windows or areas are involved
- How easy the joints are to reach
- Whether there’s mould to deal with
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or send us an email.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The rough size of the job
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
- Photos by email, if that’s easy
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or send us an email.
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Show decorators and builders where the movement joints are
- Leave the joints unpainted unless we have said otherwise
- Check external joints each spring
- Do not let climbing plants root in the sealant
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
Once a joint cannot move, the wall finds another way, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
What external mastic looks like in East Hagbourne
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Brightwell Manor (about 3.5 miles north-east) nearby, there’s older building stock in the area around East Hagbourne 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 Didcot Parkway station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. In the older streets around Church of St Andrew, an extension built onto an older house moves differently, and the joint between them takes the strain. Schools such as Hagbourne Church of England Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
East Hagbourne is about 1 mile south of Didcot, in Oxfordshire. Our applicators cover external mastic for homeowners, landlords and businesses in East Hagbourne, as part of our work across Oxfordshire. East Hagbourne is one of 443 towns and villages in Oxfordshire we cover. Our Oxford page covers work nearby (11 miles or so).
Work in OX11 works the same way as everywhere else we cover. Local streets include North Croft, The Croft and Wilcher Close, all of which we cover. We also cover Coscote (1 mile west), West Hagbourne (1 mile south-west), Upton (1 mile south-west), Blewbury (2 miles south) and Harwell (2 miles west). We also work in nearby towns such as Oxford (11 miles north), Abingdon-on-Thames (6 miles north), Wantage (8 miles west), Henley-on-Thames (15 miles east), Grove (8 miles west) and Faringdon (15 miles west).
Around East Hagbourne
Typical jobs here are in homes near Fleur De Lys Public House and St Birinus School. For rail, the closest station is Didcot Parkway station, about 1.3 miles north of the centre. Nearby you’ll also find Brightwell Castle (3.5 miles north-east) and Abingdon Community Hospital (6 miles north-west). Open spaces near East Hagbourne include Mowbray Fields and Churn Hill.
Why act early in East Hagbourne
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. Older cottages and farmhouses around East Hagbourne can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Combining jobs into 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.
What you get with us
- Sealant colour chosen to suit
- Tidy, careful work
- Homes, businesses and hotels
- Full insurance on every job
See what affects the cost and customer reviews.
How the job changes by surface
Render joints
Render has movement joints and stop beads that need sealing. We reseal them with a flexible exterior sealant that suits the render colour.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant.
FAQs for East Hagbourne
Can you help a landlord with a rental near Didcot Parkway station?
Yes, we work for landlords and agents. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Do you cover East Hagbourne for external mastic?
Yes. We work across London and the South East, and East Hagbourne is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
When will the joints need doing again?
There’s no fixed answer: joints on exposed walls or with a lot of movement age sooner. A yearly look will tell you when they need doing. Our work comes with a 12-month guarantee.
What is backing rod for?
Backing rod goes into deeper joints as a matter of course. It sets the sealant depth and prevents three-sided bonding.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we are using.
Can you match the colour of my brickwork?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We choose the closest to your brick or render so the joint does not draw the eye.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint.