West Berkshire · England

External & façade joints in Wickham, West Berkshire

External mastic in Wickham from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Cracked joints where brick meets render or frames
  • Panel joints letting water in
  • Weeds or debris growing in open joints

Trusted external mastic in Wickham

External mastic in Wickham

A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. We work on render & cladding joints, façade panels and brickwork movement joints, and the jobs we see most are failed seals between different materials and weeds or debris growing in open joints.

In a village or hamlet like Wickham, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.

All our work is covered by our one-year guarantee.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Where
Wickham (RG20)
Wider area
West Berkshire
Cover
One year on every job
Price
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

Leave it or put it right?

Water gets in through a failed movement joint, behind render and cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. In a small place like Wickham, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.

What you get with us

  • White, clear, grey or another colour, product permitting
  • Approved under the ARBOMaster scheme
  • Old sealant always removed completely
  • Rated 4.9 stars on Google

Read our cost guide or our reviews.

What we do, step by step

Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours to a few days, depending on the length of joint and the access. In a small place like Wickham, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. First we look over the joints with you, agree which to renew and talk through access.
  2. The old mastic and anything lodged in the joint is removed.
  3. Both sides are cleaned back to sound material and primed if needed.
  4. Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
  5. The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.

Getting ready for the visit

  • Let us know about earlier repairs to the joints
  • Keep pets and children clear of the area while we work
  • Tell us if parking is tricky

Get a quote

Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or send us an email with the details, and pictures are welcome.

Get a quick quote

Advice

What the job involves on each surface

Render joints

Cracks along render joints let water in behind the coat. Resealing the joints early keeps water out.

Brickwork movement joints

Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod coloured to suit the wall.

Common questions in Wickham

Will you come out to Wickham?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Can you help a landlord with a rental near Kintbury station?

Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.

How long should I leave it?

Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used before we leave.

Do the sealants smell?

Possibly a little. Any smell clears as the sealant cures, and ventilation helps.

Should I try DIY first?

That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

Do you guarantee your work?

Yes. All our work carries a 12-month guarantee.

Can you seal joints between two different materials?

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.

How long will you be here?

As a guide, most jobs take anything from a few hours to several days, depending on the building. Larger jobs naturally take longer, and we’ll tell you how long to expect.

When it isn’t the sealant

Some problems need a builder, plumber or other trade rather than us:

  • Adding movement joints to masonry that has none
  • Failed render or damaged cladding panels
  • Cracked brickwork or render that needs a builder or plasterer

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

Joints and surfaces we work on

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

Outside joints around Wickham

Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Benham Park (about 3.7 miles south-east) are a reminder that the area around Wickham 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 Welford and Wickham C.E. Primary School, larger buildings have long runs of movement joint that eventually need resealing. Rented homes near Kintbury station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. If you live in an older home near Church of St Swithin, old and new materials meet at the roofline and walls, which is where sealant earns its keep.

Wickham is about 6 miles north-west of Newbury, in West Berkshire. From the centre of Wickham to the outskirts, we cover external mastic for every kind of property. We cover 155 towns and villages across West Berkshire, from the larger towns to small villages. Reading is on our list too, about 20 miles from Wickham.

Work in RG20 works the same way as everywhere else we cover. If you need external mastic at a property on Welford Road, Baydon Road and Mant Close or a nearby road, we can help. If you are just outside Wickham, we cover Easton (1 mile east), Weston (1 mile north), Clapton (1 mile south-west), East Shefford (2 miles north) and Shefford Woodlands (2 miles north-west). Further out, we also cover Newbury (6 miles south-east), Thatcham (8 miles east), Speenhamland (5 miles south-east), Hungerford (4 miles south-west), Lambourn (6 miles north-west) and Shaw (6 miles south-east).

Around Wickham

Locally, jobs take us to homes and businesses close to The Five Bells pub, among other places. For rail, the closest station is Kintbury station, roughly 3 miles south of the centre. Well-known places in the area include Hamstead Marshall 3 (3.4 miles south-east). Not far away are Sole Common Pond.

Map of Wickham © OpenStreetMap contributors

Can I do it myself?

If you are set on DIY, put the effort into 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.

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Looking after it afterwards

Good habits help new joints last longer. A few tips:

  • Walk round the building once a year and look at the joints
  • Leave the joints unpainted unless we have said otherwise
  • Do not let climbing plants root in the sealant
  • Fix overflowing gutters above sealed joints

Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.

An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick, all bigger jobs than a reseal.

What affects the quote in Wickham

We quote each job individually. These are the things that affect it:

  • Whether the work is at height
  • How many rooms, windows or areas are involved
  • The number and length of the joints
  • The old material and how stubborn it is

What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first.

What to tell us for a quote

There’s no need for technical detail. Just tell us:

  • Where the job is, and your postcode
  • Photos by email, if that’s easy
  • The problem you’ve noticed
  • Roughly how big the job is

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or email us.

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