Oxfordshire · England
External Mastic in Draycott
We cover Draycott for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Moss and dirt in joints with no sealant left
- Rigid filler in a joint that should flex
- Failed seals between different materials
External mastic in Draycott, done properly
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the line blends in. We work on copings & trims, render & cladding joints and brickwork movement joints, and the jobs we see most are failed sealant between panels on a façade and cracked joints where brick meets render or frames.
Outside joints can only be sealed when they’re dry, so work in Draycott is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
All of our work is guaranteed for twelve months, in Draycott and everywhere else we cover.
- Place
- Draycott (OX9)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

What affects the cost of external mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Access and height
- The number and length of the joints
- How many areas need sealing
- Whether there’s mould to deal with
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and agree the price before starting.
What to tell us for a quote
What to tell us when you ask for a quote:
- Photos by email, if that’s easy
- Whether it has been sealed before
- The problem you’ve noticed
- The type of property
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Walls and rooflines in Draycott
Historic houses like Garsington Manor (about 4.8 miles south-west) are a reminder that the area around Draycott 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. 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.
In the older streets around Church of St Helen, an extension built onto an older house moves differently, and the joint between them takes the strain.
Draycott is about 4 miles west of Thame, in Oxfordshire. Anywhere in OX9, we can carry out external mastic at your property. Draycott is one of 443 places in Oxfordshire where we work. You can also see our page for Oxford, roughly 7 miles from Draycott.
Work in OX9 is quoted and booked the same way as anywhere else. We also cover Tiddington (1 mile south), Albury (1 mile south-east), Little Ickford (1 mile north-east), Ickford (1 mile north) and Shabbington (1 mile north-east). Further out, we also cover Oxford (7 miles west), Didcot (12 miles south-west), Bicester (11 miles north), Abingdon-on-Thames (11 miles south-west), Thame (4 miles east) and Kidlington (11 miles north-west).
What’s near Draycott
In Draycott, that means homes and buildings near The Fox Inn, among other places. Well-known places in the area include Thame Community Hospital (4 miles east) and Waterperry Gardens Rural Museum (1.2 miles west). The countryside around Draycott includes Wells Farm.
Common problems we fix in Draycott
Sometimes a movement joint was filled with mortar or a rigid filler. The joint can’t move, so the wall cracks somewhere else instead.
Keep an eye out for these signs:
- Failed seals between different materials
- Moss and dirt in joints with no sealant left
- Panel joints letting water in
- Rain getting behind render or cladding at a joint
If you look after a building such as Ickford School, its movement joints, gutters and trims need looking after like any other building’s.
Comparing quotes
- Are they insured?
- What preparation is included
- Whether all the old sealant comes out first
- How long to leave it before use
Can I do it myself?
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.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Aftercare tips
After the cure time, these simple habits help:
- Show decorators and builders where the movement joints are
- Leave the joints unpainted unless we have said otherwise
- Avoid pressure-washing directly into sealant joints
- Get split or bare joints resealed while the damage is small
Do not paint over the new sealant unless we’ve said the product is paintable. Paint can crack on a flexible joint.
Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years.
Why it’s worth doing now in Draycott
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. Older cottages and farmhouses around Draycott can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What you get with us
- Full insurance on every job
- A sealant colour to suit the surroundings
- We never seal over old sealant
- 180+ five-star Google reviews
See what affects the cost and our reviews.
Towns and villages near Draycott
What else we do in Draycott
Common questions in Draycott
Is external mastic in Draycott guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Is Draycott in your area for external mastic?
Yes. We work across London and the South East, and Draycott is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you seal joints where cladding meets other materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. We choose one that suits both surfaces.
How often do external joints need resealing?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
How the visit works
When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work begins. The work usually takes anything from a few hours to several days, depending on the building. Somewhere like Draycott 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.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- 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.
Preparing for the visit
- Let us know about parking restrictions
- Mention if the joints have been sealed before
- Mention any sign-in or site rules at work premises
Getting a quote
Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or email us and describe the job, and pictures are welcome.
Related advice
Different surfaces, different methods
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod in a colour to suit the brick.
Concrete and blockwork
Big joints in concrete need careful depth control. We size the backing rod to the gap and keep the sealant to the right depth.
