Oxfordshire · England
External Mastic in Hungerford Green
External mastic across Hungerford Green and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Rain getting behind render or cladding at a joint
- Failed sealant between panels on a façade
- Hard, crazed mastic that has stopped moving
Common problems we fix in Hungerford Green
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
Most people get in touch after spotting something like this:
- Sealant that has lost its bond to the brick or render
- Failed seals between different materials
- Weeds or debris growing in open joints
- Failed sealant between panels on a façade
If you live in an older home near St Mary's church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
What to look for in a quote
- Whether all the old sealant comes out first
- Whether you can choose the colour
- What insurance they hold
- How the surfaces are prepared before sealing
About our external mastic in Hungerford Green
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We take the old material out and do it properly. We work on brickwork movement joints, joints between brick and frames and façade panels, and people most often call us about failed sealant between panels on a façade and gaps where render, brick and frames meet.
Older homes in small places like Hungerford Green may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water generally gets in.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Hungerford Green (RG8)
- Region
- Oxfordshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

Places near Hungerford Green
Other services in Hungerford Green
Should I try it myself first?
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 fails, we can still redo it.
Outside joints around Hungerford Green
Historic houses like Basildon Park (about 3.4 miles east) are a reminder that the area around Hungerford Green has older buildings as well as new. Where a home is older, 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Goring & Streatley station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. Managing a site like The Downs School? Then larger buildings have long runs of movement joint that eventually need resealing.
Hungerford Green is about 7 miles south of Didcot, in Oxfordshire. Jobs in Hungerford Green get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Oxfordshire, we cover 443 places, Hungerford Green among them. You can also see our page for Reading, about 10 miles away.
We work across RG8 for external mastic. That includes homes and businesses on Bell Lane and The Glebe and the roads around them. Other places close to Hungerford Green include Streatley (2 miles east), Goring (3 miles east), Lower Basildon (3 miles east), Moulsford (3 miles north-east) and South Stoke (4 miles north-east). We also work in nearby towns such as Didcot (7 miles north), Abingdon-on-Thames (12 miles north), Wantage (11 miles north-west), Henley-on-Thames (13 miles east), Grove (12 miles north-west) and Benson (9 miles north-east).
What’s near Hungerford Green
We work in homes and buildings around The Bell Inn and the streets around them. Hungerford Green’s nearest station is Goring & Streatley station, roughly 2.9 miles east. Other landmarks nearby include Hampstead Norris Castle (2.8 miles south-west). For a walk, there’s Churn Hill and Withymead Nature Reserve.
Surface by surface
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Quotes for external mastic in Hungerford Green
The price is agreed before any work begins. It takes into account:
- Access and height
- Any mould that needs treating
- Which sealant suits the joint
- The old material and how stubborn it is
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will go through it with you.
What we need to know
When you contact us, these details help:
- Whether it’s a home or a business
- What’s wrong with the joints now
- The rough size of the job
- A few pictures by email, if you can
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved.
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Ask before painting over external sealant
- Fix overflowing gutters above sealed joints
- Wash walls gently around the sealant
- Keep movement joints as flexible joints, not mortar
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Act while the splits are small. At that stage it’s a simple cut out and reseal.
Hungerford Green questions
Can you do external mastic in Hungerford Green?
Yes. We work across London and the South East, and Hungerford Green is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing.
I let a flat near Goring & Streatley station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Sealant is a maintenance item, so check the joints once a year and reseal when it splits.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area to suit the site.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall so the joint blends in. There’s a wide choice of exterior colours.
Do you work at height?
That depends on the building and the joints. Where joints can be reached safely, we will do them. Tell us about the building and we’ll confirm what access is needed.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
How it works
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours to a few days, depending on the length of joint and the access. In a small place like Hungerford Green, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Let us know about parking restrictions
- Let us know if you’ve seen damp or leaks
- Plan for the work area to be out of bounds to pets and children
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Related advice
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
