Oxfordshire · England

External & façade joints in Remenham, Oxfordshire

Movement joints in Remenham need attention? We remove the old material, prepare the joints and seal them properly.

  • Damp patches traced to an open external joint
  • Movement joints with cracked, split or missing sealant
  • Rigid filler in a joint that should flex

External mastic near Remenham

External mastic in Remenham, done properly

We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing and we use one wherever it does. We work on render & cladding joints, joints between brick and frames and façade panels, and common reasons people get in touch are cracked joints where brick meets render or frames and leaking joints around cladding and façade panels.

Somewhere as small as Remenham, homes and farm buildings often face open ground, 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.

We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

Where
Remenham (RG9)
Wider area
Oxfordshire
Guarantee
A year, on every job
Quotes
Quoted before any work starts
Call
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

When something else is needed

It helps to know what we cannot do:

  • Damp from another source, such as a leaking gutter or a bridged damp-proof course
  • Cracked brickwork or render that needs a builder or plasterer
  • Failed render or damaged cladding panels

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.

Where we work in Remenham

  • Brickwork movement joints
  • Façade panels
  • Joints between brick and frames
  • Render & cladding joints
  • Copings & trims
  • Concrete & block

Keeping the joints in good condition

To keep the joints looking good and working properly:

  • Get split or bare joints resealed while the damage is small
  • Check external joints each spring
  • Check the sealant is paintable before painting near it
  • Deal with leaking gutters that soak the joints below

Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead over time.

Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.

Common questions in Remenham

Do you cover Remenham for external mastic?

Yes. We work across London and the South East, and Remenham is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will send you a clear quote.

Do you work for landlords with property near Henley-On-Thames station?

Yes, we work for letting agents and landlords. 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 work begins.

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.

How long does the job take?

A typical job takes a few hours to a few days, depending on the length of joint and the access, including preparation and clearing up. Your quote will say how long we expect yours to take.

Are you an approved applicator?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.

Are you insured?

Yes. We’re fully insured, with over 20 years’ experience in sealant work.

Do you work for hotels and businesses?

Yes. We’ve worked for hotels, offices and other businesses, and we are fully insured.

What does external mastic cost?

Size, access and the old material all affect the cost. Ask us for a quote.

DIY sealant or a professional job?

If you’ve already had a go yourself, that’s fine. We cut it out and start again.

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.

How it works

You do not need to clear the whole room or building before we come, just the space around the work. We protect the rest, and the work takes a few hours for a handful of joints, longer for a whole elevation for a typical job. Somewhere like Remenham needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We look at every joint and agree a colour to suit the wall.
  2. We take out the old sealant until the faces are sound.
  3. Backing rod goes in so the sealant can stretch between the two faces.
  4. We prime the faces where required.
  5. A low-modulus exterior sealant is gunned in and tooled to a neat finish.

Getting ready for the visit

  • Move anything stored near the joints
  • Mention any tricky access
  • Mention any sign-in or site rules at work premises

How to get a quote

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 email us.

Get a price

Advice

External mastic in Remenham: local notes

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. Historic houses like Greenlands (about 1 mile north) are a reminder that the area around Remenham 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.

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. If you let a flat or house near Henley-On-Thames station, outside joints that have cracked can let damp into a rental, so check them between lets. Homes close to Church of St Nicholas include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.

Remenham is about 5 miles west of Marlow, in Oxfordshire. Wherever you are in the RG9 postcode area, we can carry out external mastic at your property. Our Oxfordshire coverage runs to 443 places, and Remenham is one of them. Reading is on our list too, about 8 miles from Remenham.

All of RG9 is covered for external mastic. Nearby, we also carry out external mastic in Aston (1 mile east), Remenham Hill (1 mile south-east), Mill End (1 mile north-east), Medmenham (2 miles east) and Cockpole Green (2 miles south-east). We also work in nearby towns such as Thame (14 miles north), Benson (10 miles north-west), Chinnor (10 miles north), Tilehurst (9 miles south-west), Wallingford (11 miles west) and Little Heath (9 miles south-west).

Local landmarks in Remenham

Typical jobs here are in homes near Old White Horse pub, Fawley Court and Temple Island and Badgemore Primary School, among other places. For rail, the closest station is Henley-On-Thames station, roughly 1.2 miles south of the centre. Other landmarks nearby include Frazer Nash Archives (1.4 miles south) and Marlow Community Hospital (5.4 miles east). Not far away are Hurley Chalk Pit.

Map of Remenham © OpenStreetMap contributors

Different surfaces, different methods

Copings and trims

Copings expand and contract through the day, so the joints need a sealant that stays flexible.

Brickwork movement joints

Brick movement joints are often mistaken for a missing mortar line. If that is happened, we rake it out and reseal it properly.

Why deal with it now?

Water gets in through a failed movement joint and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Around Remenham, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.

What you get with us

  • We never seal over old sealant
  • A 12-month guarantee on all work
  • Experience in homes, commercial sites and hotels
  • A choice of colours where the product allows

See how sealant jobs are priced and what customers say.

Quotes for external mastic in Remenham

Every job gets its own quote. These are the things that affect it:

  • The number and length of the joints
  • How many areas need sealing
  • Which sealant suits the joint
  • Mould in or behind the old joints

No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.

What we need to know

You don’t need to know the technical terms. Just tell us:

  • How we’d reach the joints
  • What’s wrong with the joints now
  • If someone has resealed it before
  • A few photos by email, if you can

Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved and give you a clear price.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job