West Berkshire · England
Upper Eddington External Mastic
Movement joints in Upper Eddington need attention? We remove the old material, prepare the joints and seal them properly.
- Moss and dirt in joints with no sealant left
- Joints pointed up with cement by mistake
- Failed sealant between panels on a façade
What happens if it’s left?
Running new sealant over the old bead rarely lasts. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out. Where a wall is exposed, as many are in small places like Upper Eddington, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
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 email us.
Why Upper Eddington clients choose us
- A 12-month guarantee on all work
- Tidy, careful work
- Approved under the ARBOMaster scheme
- Anti-fungal sanitary silicone in wet areas
See our cost guide and what customers say.
External mastic in Upper Eddington
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it, and we do not skip that step. If you have damp patches traced to an open external joint and sealant that has lost its bond to the brick or render, we can help, whatever the surface.
Outside joints can only be sealed when they’re dry, so work in Upper Eddington is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
You get a one-year guarantee, the same in Upper Eddington as everywhere else we work.

- Place
- Upper Eddington (RG17)
- Wider area
- West Berkshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant.
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
If you manage several properties in or around Upper Eddington, several properties can be quoted together. Send us the addresses and the work at each.
Upper Eddington buildings and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Hungerford Methodist Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. Managing a site like Hungerford Primary School? Then its movement joints, gutters and trims need looking after like any other building’s.
Upper Eddington is about 8 miles west of Newbury, in West Berkshire. Upper Eddington gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 155 places across West Berkshire. You can also see our page for Reading, about 23 miles away.
Every address in RG17 is within our area for external mastic, from the main roads to the quietest streets. Local streets include Bath Road, Charnham Lane and Tealgate, all of which we cover. Upper Eddington sits on or near the A4, so getting to you is simple. Nearby, we also carry out external mastic in Eddington (1 mile south-east), Leverton (1 mile north-west), Hungerford (1 mile south), Chilton Foliat (1 mile north-west) and Woodlands St Mary (3 miles north). Larger places within reach include Newbury (8 miles east), Thatcham (11 miles east), Speenhamland (8 miles east), Lambourn (6 miles north), Shaw (9 miles east) and Kingsclere (13 miles south-east).
Near you in Upper Eddington
Locally, jobs take us to homes and businesses close to John O'Gaunt School and Amore pub and the streets around them. For rail, the closest station is Hungerford station, about 0.6 miles south. Green spaces nearby include Inkpen Hill and Kintbury Newt Ponds.
Nearby places to Upper Eddington
What else we do in Upper Eddington
Questions from Upper Eddington
I let a flat near Hungerford station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Is Upper Eddington within the area you cover?
Yes, Upper Eddington is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
What is a movement joint?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
How do you reach high-level joints?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher ones, send details and we’ll confirm the access.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you need external mastic in Upper Eddington?
Some movement joints have been pointed up with mortar. The joint cannot move, so the wall cracks somewhere else instead.
If you can see any of these, it’s time to have the joints looked at:
- Hard, crazed mastic that has stopped moving
- Plants rooting in failed movement joints
- Water getting into walls through failed joints
- Sealant pulling away from one side of the joint
Letting a property close to Hungerford station? Then split movement joints are easy to miss on a rental until damp shows inside.
Before you book anyone
- Who does the work, and how experienced they are
- What product goes in the joint
- What the quote includes, VAT included or not
- How long to leave it before use
The process
Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Upper Eddington, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
- Let us know about stairs, lifts or work at height
Ask for a quote
We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or send us an email.
Related advice
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
A careful DIYer can reseal a simple joint, such as a straightforward 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 won’t fix:
- Failed render or damaged cladding panels
- Structural movement, which needs a surveyor or engineer
- Adding movement joints to masonry that has none
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Concrete & block
- Render & cladding joints
- Façade panels
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
