Oxfordshire · England
External & façade joints in Remenham Hill, Oxfordshire
External mastic in Remenham Hill from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Hard, crazed mastic that has stopped moving
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
How we handle external mastic in Remenham Hill
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we will confirm what access is needed. If you have rain getting behind render or cladding at a joint and movement joints with cracked, split or missing sealant, we can help.
In a village or hamlet like Remenham Hill, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Location
- Remenham Hill (RG9)
- Region
- Oxfordshire
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the quote in Remenham Hill
We don’t publish a price list, because no two jobs are the same. The quote depends on:
- When we can work, for business premises
- The type of sealant required
- Any mould that needs treating
- Whether the work is at height
The cost reflects the work involved, not guesswork. That is why we ask a few questions first.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- Roughly how big the job is
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
- How we’d reach the joints
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or drop us an email.
The process
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Remenham Hill needs a little journey planning: 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.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- Mention any tricky access
- Mention any sign-in or site rules at work premises
- Keep pets and children clear of the area while we work
Ask for a quote
If you are in Remenham Hill and need external mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Read more
Remenham Hill questions
Do you cover smaller places like Remenham Hill?
Yes. Remenham Hill 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 you help a landlord with a rental near Henley-On-Thames station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
What information do you need?
Tell us what needs doing and where, plus photos if you have them. We will ask anything else we need to know.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
How long does external mastic last?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away.
Can you seal joints between render and window frames?
Yes. Where different materials meet is one of the most common joints we seal. The sealant is chosen to bond to both sides, primed where needed.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Why deal with it now?
Done well, a resealed joint is a neat, straight line 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 Remenham Hill can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we will go through it with you.
What you get with us
- An ARBOMaster approved applicator
- Sanitary silicone with an anti-fungal additive in wet areas
- We agree the colour with you first
- Old sealant always removed completely
Take a look at how sealant jobs are priced or what customers say.
Also near Remenham Hill
What else we do in Remenham Hill
Outside joints around Remenham Hill
With historic houses such as Greenlands (about 1.7 miles north) nearby, there’s older building stock in the area around Remenham Hill as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For landlords with property near Henley-On-Thames station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. For an older house near a landmark such as Church of St Nicholas, an extension built onto an older house moves differently, and the joint between them takes the strain.
Remenham Hill is about 5 miles south-west of Marlow, in Oxfordshire. We carry out external mastic for homeowners, landlords and businesses in Remenham Hill and the surrounding area. Remenham Hill is one of 443 towns and villages in Oxfordshire we cover. Reading is on our list too, around 8 miles away.
Our applicators cover all of RG9 for external mastic and the streets around it. That includes homes and businesses on White Hill and Aston Lane and the roads around them. Neighbouring places we cover for external mastic include Aston (1 mile north), Remenham (1 mile north-west), Mill End (1 mile north), Cockpole Green (1 mile south-east) and Medmenham (2 miles north-east). We also work in nearby towns such as Thame (15 miles north), Benson (11 miles north-west), Chinnor (11 miles north), Tilehurst (9 miles south-west), Wallingford (12 miles west) and Little Heath (9 miles south-west).
Near you in Remenham Hill
Typical jobs here are in homes near Gillotts School, Mill Meadows and Flower Pot Hotel and the streets around them. For rail, the closest station is Henley-On-Thames station, about 1.1 miles west of the centre. Well-known places in the area include Frazer Nash Archives (1.1 miles south-west) and Marlow Community Hospital (5.1 miles north-east). Open spaces near Remenham Hill include Weycock Hill and Hurley Chalk Pit.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
What we’re called out for in Remenham Hill
A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The new sealant then lets go long before it should.
Look out for these signs:
- Weeds or debris growing in open joints
- Hard, crazed mastic that has stopped moving
- Failed sealant between panels on a façade
- Damp patches traced to an open external joint
For site and facilities teams at buildings such as Rupert House School, its movement joints, gutters and trims need looking after like any other building’s.
Before you book anyone
- Which colour the sealant will be
- Whether all the old sealant comes out first
- Who does the work, and how experienced they are
- Are they insured?
What sealant work can’t fix
In fairness, there are a few things sealant won’t fix:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracked brickwork or render that needs a builder or plasterer
- Damp that isn’t coming from the joint
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
Where we work in Remenham Hill
- Render & cladding joints
- Brickwork movement joints
- Façade panels
- Joints between brick and frames
- Concrete & block
- Copings & trims