West Berkshire · England

External & façade joints in Sulhamstead Bannister Upper End, West Berkshire

Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Sulhamstead Bannister Upper End and across West Berkshire. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Movement joints filled with mortar instead of sealant
  • Leaking joints around cladding and façade panels
  • Hard, crazed mastic that has stopped moving

External mastic for Sulhamstead Bannister Upper End homes and businesses

Landlord and commercial work in Sulhamstead Bannister Upper End

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.

Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we are fully insured.

External mastic in Sulhamstead Bannister Upper End

For buildings in Sulhamstead Bannister Upper End, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean joint faces and the right depth. We’re often asked to deal with rain getting behind render or cladding at a joint and panel joints letting water in, on façade panels, copings & trims and render & cladding joints.

Around Sulhamstead Bannister Upper End, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.

There’s a 12-month guarantee on every job.

Where
Sulhamstead Bannister Upper End (RG7)
Wider area
West Berkshire
Cover
A year, on every job
Quote
A clear price before any work starts
Call
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

FAQs for Sulhamstead Bannister Upper End

Do you cover Sulhamstead Bannister Upper End for external mastic?

Yes. Our work covers London and the South East, and Sulhamstead Bannister Upper End is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.

Will you come out to Sulhamstead Bannister Upper End?

Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Is it messy?

We keep the work tidy. We protect what’s around the joints, and we clear up when we are done.

What do you put in the joint?

Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we’re using and why.

When will the joints need doing again?

It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away.

Do you remove the old sealant?

Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.

Can a movement joint be filled with mortar?

No, not where the gap is a movement joint. Filling it with mortar defeats its purpose and can lead to cracking. A flexible sealant is the right fill.

Can you work on commercial sites?

Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.

How it works

You do not need to clear the whole room or building, just the space around the work. We protect the rest, and the work takes anything from a few hours to several days, depending on the building for a typical job. Somewhere as small as Sulhamstead Bannister Upper End, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we look over the joints with you, agree which to renew and talk through access.
  2. We cut out the failed sealant and rake out any dirt or growth.
  3. The joint faces are cleaned and primed where the sealant needs it.
  4. We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
  5. We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.

How to prepare

  • Mention any leaks or damp you’ve noticed
  • Clear items away from the joints we are working on
  • Tell us about any previous sealing or DIY attempts

Get a quote

For external mastic in Sulhamstead Bannister Upper End, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.

Get a price

Advice

When it isn’t the sealant

Sealant is not the answer to every problem, and we will tell you before we start. Sealant won’t put right:

  • Damp from another source, such as a leaking gutter or a bridged damp-proof course
  • Cracks in the bricks or render themselves, away from the joints
  • Movement that’s more than a sealant joint can take

If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.

Where we work in Sulhamstead Bannister Upper End

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

DIY versus a professional finish

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

Sulhamstead Bannister Upper End 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.

In the older streets around Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant. Letting a property close to Theale station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.

Sulhamstead Bannister Upper End is about 5 miles north-east of Tadley, in West Berkshire. Sulhamstead Bannister Upper End gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Our area takes in 155 places across West Berkshire.

Every address in RG7 is covered for external mastic. Neighbouring places we cover for external mastic include Sulhamstead (1 mile west), Sulhamstead Abbots (1 mile south-east), Ufton Green (1 mile south-west), Ufton Nervet (1 mile south) and Sheffield Bottom (1 mile north-east). Within a short drive, we also cover Newbury (10 miles west), Thatcham (8 miles west), Speenhamland (10 miles west), Spencers Wood (5 miles east), Shaw (10 miles west) and Beansheaf Farm (3 miles north-east).

Around Sulhamstead Bannister Upper End

We work in homes and buildings around The Willink School and The Willink School, among other places. For rail, the closest station is Theale station, roughly 1.5 miles north. Well-known places in the area include Battle Hospital (4.9 miles north-east) and Thames Valley Police Museum (0.5 miles north). Green spaces nearby include Moor Copse Nature Reserve and Hosehill Lake.

Map of Sulhamstead Bannister Upper End © OpenStreetMap contributors

Aftercare tips

Good habits help new joints last longer. Our tips:

  • Keep high-pressure jets off the joints
  • Show decorators and builders where the movement joints are
  • Never let anyone fill a movement joint with mortar
  • Deal with leaking gutters that soak the joints below

Keep pressure washers away from the sealant. High-pressure water can lift the edges.

Once a joint cannot move, the wall finds another way, often as cracks near the joint. Catch it early and you reduce the risk.

When to call us in Sulhamstead Bannister Upper End

Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and rips as the joint opens.

The problems people normally mention when they call are:

  • Damp patches traced to an open external joint
  • Rigid filler in a joint that should flex
  • Sealant that has lost its bond to the brick or render
  • Plants rooting in failed movement joints

For site and facilities teams at buildings such as Sulhamstead and Ufton Nervet School, its movement joints, gutters and trims need looking after like any other building’s.

What to look for in a quote

  • What the cure time is
  • How long the guarantee is
  • Whether you can choose the colour
  • Whether the sealant suits the joint

How to choose a mastic man

Different surfaces, different methods

Cladding and façade panels

Where a cladding system has its own specified sealant, we follow it, or one the system allows. Tell us what the building has when you get in touch.

Concrete and blockwork

The face of concrete or block is often dusty, so preparation is key. We prime where the sealant needs it before sealing.

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