Oxfordshire · England
Ramsden External Mastic
We cover Ramsden for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Weathered mastic that no longer stretches
- Failed sealant between panels on a façade
- Movement joints with cracked, split or missing sealant
External mastic for homes and businesses in Ramsden
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it. We are often asked to deal with joints with sealant missing in places and joints where the bead has come unstuck, across joints between brick and frames, copings & trims and brickwork movement joints.
Outside joints can only be sealed when they’re dry, so work in Ramsden is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Ramsden (OX7)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Leave it or put it right?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. Older cottages and farmhouses around Ramsden can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why choose Mr Mastic in Ramsden
- Tidy, careful work
- Colour picked to suit the job
- Rated 4.9 stars on Google
- A 12-month guarantee on all work
Also in Ramsden
Ramsden: your questions answered
Do you cover smaller places like Ramsden?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you cover Ramsden for external mastic?
Yes. Our work covers London and the South East, and Ramsden is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing, and we’ll send you a clear quote.
Do you guarantee your work?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we will sort it.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Why is there a gap in my brick wall?
It’s a deliberate gap that lets the wall expand and contract without cracking. It’s sealed with a flexible sealant, not mortar.
Which products 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’ll tell you what we’re using.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
How do you reach high-level joints?
It depends on the height and the site. Ground-floor joints are simple; for higher ones, send details and we’ll confirm the access.
Honest limits
New sealant can’t fix everything, and we’ll tell you before any work starts. Sealant will not put right:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracked brickwork or render that needs a builder or plasterer
- Subsidence or other structural problems
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Copings & trims
- Concrete & block
- Façade panels
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
DIY versus a professional finish
What a professional job adds is preparation and the right 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.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What we are called out for in Ramsden
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.
Signs it’s time to call us include:
- Weathered mastic that no longer stretches
- Rain getting behind render or cladding at a joint
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
Rented homes near Finstock station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Before you book anyone
- The length of the guarantee
- How the colour is chosen
- What the quote includes, VAT included or not
- What product goes in the joint
How the job changes by surface
Cladding and façade panels
If the façade has a specified sealant, that’s what we use. Tell us what the building has when you get in touch.
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
What happens on the day
There is not much for you to do on the day. Point us to the joints and we will 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 Ramsden, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- 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
- Mention any tricky access
- Tell us about any water getting in
- Tell us about any previous sealing or DIY attempts
Getting a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or drop us an email.
Related advice
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Do not let climbing plants root in the sealant
- Get split or bare joints resealed while the damage is small
- Check the sealant is paintable before painting near it
- Make sure movement joints are not pointed over
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.
Walls and rooflines in Ramsden
Historic houses like Minster Lovell Hall (about 3.1 miles south-west) are a reminder that the area around Ramsden has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Schools such as Finstock Church of England Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s. For an older house near a landmark such as Church of St James, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Ramsden is about 3 miles north of Witney, in Oxfordshire. Every kind of property in Ramsden can book us for external mastic, old or new, large or small. The work is guaranteed for a year. Across Oxfordshire, we cover 443 places, and Ramsden is one of them. We also work in Oxford, about 12 miles from Ramsden.
Postcode districts we cover here for external mastic: OX7. You’ll find streets such as High Street and Wilcote Lane, and we cover them all. If you are just outside Ramsden, we cover Finstock (1 mile north-east), Delly End (1 mile south), Fawler (2 miles north-east), Hailey (2 miles south) and Poffley End (2 miles south). Further out, we also cover Oxford (12 miles south-east), Bicester (15 miles east), Abingdon-on-Thames (14 miles south-east), Witney (3 miles south), Carterton (7 miles south-west) and Faringdon (13 miles south).
Near you in Ramsden
In Ramsden, that means homes and buildings near The Royal Oak Public House. For rail, the closest station is Finstock station, roughly 1.4 miles north-east of the centre. Other landmarks nearby include Cogges Manor Farm Museum (3.6 miles south). Green spaces nearby include Blenheim Farm.