Oxfordshire · England
External Mastic in Letcombe Bassett
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Letcombe Bassett. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Joints where the bead has come unstuck
- Water getting into walls through failed joints
- Failed sealant between panels on a façade
What sealant work can’t fix
Sealant is not the answer to every problem, and we’d rather say so up front. It will not solve:
- Rising or penetrating damp from elsewhere in the wall
- Subsidence or other structural problems
- Cracking across the wall rather than at a joint
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
Surfaces we seal
- Brickwork movement joints
- Concrete & block
- Façade panels
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
External mastic for homes and businesses in Letcombe Bassett
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall so the joint does not stand out. If you have brick movement joints where the sealant has split and gaps where render, brick and frames meet, we can put it right.
External sealant needs dry, clean surfaces, so work around Letcombe Bassett is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Letcombe Bassett (OX12)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Outside joints around Letcombe Bassett
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Michael include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Letcombe Bassett is about 3 miles south-west of Wantage, in Oxfordshire. Jobs in Letcombe Bassett get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Letcombe Bassett is one of 443 towns and villages in Oxfordshire we cover for external mastic. Our Oxford page covers work nearby, about 16 miles away.
Our applicators cover all of OX12 for external mastic and the streets around it. If you need external mastic at a property on Gramp's Hill, Forsters Lane and Bassett Road or a nearby road, we can help. Other places close to Letcombe Bassett include Letcombe Regis (1 mile north-east), Childrey (2 miles north-west), East Challow (2 miles north), West Challow (2 miles north) and Wantage (3 miles north-east). We also work in nearby towns such as Didcot (10 miles east), Abingdon-on-Thames (11 miles north-east), Carterton (15 miles north), Grove (3 miles north-east), Faringdon (8 miles north-west) and Wallingford (14 miles east).
What’s near Letcombe Bassett
For a walk, there’s Chain Hill and Letcombe Valley.
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours to a few days, depending on the length of joint and the access from start to finish. In a small place like Letcombe Bassett, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
How to prepare
- Mention if the joints have been sealed before
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Related advice
Why deal with it now?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. Older cottages and farmhouses around Letcombe Bassett can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and give you a clear price before any work starts.
Why us?
- Over 20 years’ experience
- Every job guaranteed for a year
- Neat joints and a tidy finish
- White, clear, grey or coloured to suit, where the product allows
Read how sealant jobs are priced or our reviews.
How the job changes by surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod.
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Landlords, agents and businesses in Letcombe Bassett
We work for landlords and letting agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.
Towns and villages near Letcombe Bassett
Also in Letcombe Bassett
Letcombe Bassett: your questions answered
Do you cover Letcombe Bassett for external mastic?
Yes. We work across London and the South East, and Letcombe Bassett is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear price.
Do you cover smaller places like Letcombe Bassett?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
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.
How often do external joints need resealing?
That varies with the weather the wall faces, how much it moves and the sealant used. Treat it as a maintenance item and look at it yearly and reseal when it splits.
Why do you put foam in the joint first?
Backing rod goes into deeper joints as a matter of course. It controls the depth and stops the sealant bonding to the back so the bead can stretch.
How long will you be here?
It depends on the size of the job, but most jobs take a few hours for a handful of joints, longer for a whole elevation. We will tell you when we quote.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Can you quote for more than one area?
Yes. More than one area can be quoted together.
What we’re called out for in Letcombe Bassett
If plants are growing out of a joint, the sealant has generally failed or was never there. Roots and dirt hold water against the wall and make things worse.
These are the problems we are asked about most:
- Failed seals between different materials
- Rigid filler in a joint that should flex
- Brick movement joints where the sealant has split
- Plants rooting in failed movement joints
Around Letcombe Bassett, as everywhere, external mastic is only as good as the preparation behind it.
What your quote should include
- What preparation is included
- Is VAT in the price?
- What product goes in the joint
- What the cure time is