West Berkshire · England
External & façade joints in Hungerford, West Berkshire
External mastic across Hungerford and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Joints pointed up with cement by mistake
- Joints with sealant missing in places
- Damp patches traced to an open external joint
How we handle external mastic in Hungerford
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. We work on render & cladding joints, concrete & block and copings & trims, and people most often call us about movement joints filled with mortar instead of sealant and rain getting behind render or cladding at a joint.
In and around Hungerford, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
You get a 12-month guarantee, the same in Hungerford as everywhere else we work.
- Place
- Hungerford (RG17)
- Wider area
- West Berkshire
- Guarantee
- One year on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What external mastic looks like in Hungerford
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Church of St Lawrence include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain. Rented homes near Hungerford station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Hungerford is about 8 miles west of Newbury, in West Berkshire. For external mastic in and around Hungerford, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We’re based in Crawley and cover West Berkshire, Hungerford included. Our area takes in 155 places across West Berkshire, from the larger towns to small villages. For nearby work, see our Reading page, about 23 miles away.
Work in RG17 works the same way as everywhere else we cover. If you need external mastic at a property on High Street, Lancaster Square and Station Road or a nearby road, we can help. Hungerford is on the A4 and A338, which makes it straightforward to reach with everything needed for external mastic. Neighbouring places we cover for external mastic include Eddington (1 mile north-east), Upper Eddington (1 mile north), Leverton (1 mile north), Chilton Foliat (2 miles north-west) and Woodlands St Mary (4 miles north). Within a short drive, we also cover Newbury (8 miles east), Thatcham (11 miles east), Speenhamland (8 miles east), Lambourn (7 miles north), Shaw (9 miles east) and Kingsclere (13 miles south-east). Being one of West Berkshire’s larger places, Hungerford has every kind of property, from flats to offices.
Landmarks near Hungerford
In Hungerford, that means homes and buildings near The Borough Arms and John O'Gaunt School. There’s a railway station in Hungerford itself: Hungerford station. Not far away are Kintbury Newt Ponds and Inkpen Hill.
How the visit works
At the end, we look at the finished work together. The visit itself usually takes a few hours for a handful of joints, longer for a whole elevation, depending on the size of the job. A visit to Hungerford is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We look at every joint and agree a colour to suit the wall.
- 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.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
How to get a quote
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before we start.
Related advice
How the job changes by surface
Cladding and façade panels
Panels heat up and cool down quickly, so the joint sealant has to cope with frequent movement. The sealant is chosen with that in mind.
Concrete and blockwork
The face of concrete or block is often dusty, so preparation is key. A primer goes on where the product requires one before sealing.
What affects the cost of external mastic
There’s no set price list. The quote depends on:
- The product the joint needs
- Mould in or behind the old joints
- How many areas need sealing
- The old material and how stubborn it is
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
What to tell us for a quote
To make quoting easier, please include:
- If someone has resealed it before
- Any access issues, like height or stairs
- The address or postcode of the job
- The problem you’ve noticed
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Your questions about external mastic in Hungerford
Do you cover Hungerford for external mastic?
Yes. Our work covers London and the South East, and Hungerford is part of that. You can call 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear quote.
Is Hungerford within the area you cover?
Yes. Hungerford is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can new sealant go over the old?
No, it will not last. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
What is backing rod for?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. Then the sealant bonds to two faces and can move.
What’s an expansion joint in brickwork?
Walls move with heat, cold and moisture, so long walls have planned gaps to take that movement. The gap is sealed with a flexible sealant over backing rod.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
How long will you be here?
Most jobs take a few hours for a handful of joints, longer for a whole elevation, including the preparation. We will confirm how long when we quote.
Nearby places to Hungerford
More services for Hungerford
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we’re fully insured for the work.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Do you need external mastic in Hungerford?
If plants are growing out of a joint, the sealant has usually failed or was never there. Dirt and roots then trap moisture in the joint and speed up the damage.
Most people get in touch when they notice one of these:
- Old sealant gone brittle and cracked
- Damp patches traced to an open external joint
- Sealant that has lost its bond to the brick or render
- Gaps where render, brick and frames meet
Managing a site like Hungerford Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
What to look for in a quote
- What product goes in the joint
- How the colour is chosen
- Who turns up on the day
- Are they insured?
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Deal with leaking gutters that soak the joints below
- Avoid pressure-washing directly into sealant joints
- Leave the joints unpainted unless we have said otherwise
- Act on the first splits you see
Have a quick look at the joints each spring. Splits, gaps at the edges or plants in the joint are early warning signs.
Once a joint cannot move, the wall finds another way, generally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
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 doesn’t work out, we can still put it right.