Oxfordshire · England
Ducklington External Mastic
Specialist external mastic for Ducklington: careful preparation, the right product and tidy work. Call for a quick quote.
- Gaps where render, brick and frames meet
- Moss and dirt in joints with no sealant left
- Joints with sealant missing in places
Outside joints around Ducklington
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Minster Lovell Hall (about 3 miles north-west) nearby, there’s older building stock in the area around Ducklington as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
In the older streets around Church of St Bartholomew, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you look after a building such as Ducklington Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Ducklington is about 1 mile south of Witney, in Oxfordshire. For external mastic in and around Ducklington, please ring 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Oxfordshire. Ducklington is one of 443 places in Oxfordshire we cover for external mastic. You can also see our page for Oxford, about 11 miles away.
Here we cover the OX29 postcode area for external mastic. If you need external mastic at a property on The Square, Macray Road and Sealham Road or anywhere close by, we can help. Nearby, we also carry out external mastic in Cogges (1 mile north), Witney (1 mile north), High Cogges (2 miles north-east), Hardwick (2 miles south-east) and Madley Park (2 miles north-east). Further out, we also cover Oxford (11 miles east), Didcot (15 miles south-east), Abingdon-on-Thames (11 miles south-east), Carterton (5 miles west), Wantage (12 miles south) and Grove (11 miles south).
What’s near Ducklington
We work in homes and buildings around The Henry Box School and the streets around them. Other landmarks nearby include Cogges Manor Farm Museum (1.2 miles north) and Bampton Castle (4.1 miles south-west).
How we handle external mastic in Ducklington
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement. We work on concrete & block, copings & trims and render & cladding joints, and the jobs we see most are damp patches traced to an open external joint and gaps where render, brick and frames meet.
Around Ducklington, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually gets in.
Each job carries a 12-month guarantee, large or small.
- Where
- Ducklington (OX29)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Ducklington
What else we do in Ducklington
Quotes for external mastic in Ducklington
There’s no set price list. What we look at:
- Which sealant suits the joint
- The number and length of the joints
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Call for a quick quote and we’ll go through it with you.
What to tell us for a quote
To make quoting easier, please include:
- A few photos by email, if you can
- If someone has resealed it before
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
For external mastic in Ducklington, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Why act early in Ducklington
Resealing a run of joints in one go is normally better than patching one at a time. Joints of the same age tend to fail together. In a small place like Ducklington, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
What you get with us
- An ARBOMaster approved applicator
- Homes, businesses and hotels
- We never seal over old sealant
- A sealant colour to suit the surroundings
See our cost guide or customer reviews.
What we do, step by step
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Ducklington, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- On commercial sites, let us know about site rules
- Tell us if parking is tricky
How to get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will talk you through the work before giving you a price.
Read more
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
How to look after the new joints
So the new joints stay in good condition:
- Wash walls gently around the sealant
- Ask before painting over external sealant
- Tell anyone working on the walls about the movement joints
- Clear growth from the base of walls and joints
Keep pressure washers away from the sealant. High-pressure water can lift the edges.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal.
Work for landlords, hotels and businesses
We work for letting agents and landlords as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Common questions in Ducklington
What guarantee comes with external mastic in Ducklington?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Is Ducklington within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.
Can a movement joint be filled with mortar?
No. Rigid materials cannot move with the wall and the joint fails. Where a joint has been mortared, it can often be raked out and sealed properly.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few photos.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Ducklington, along with the rest of our area.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Different surfaces, different methods
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.