West Berkshire · England

External & façade joints in Leverton, West Berkshire

External mastic for Leverton, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Joints pointed up with cement by mistake
  • Leaking joints around cladding and façade panels
  • Joints with sealant missing in places

External mastic in Leverton

How the job changes by surface

Copings and trims

Metal and stone copings both move with temperature, so the joints need a sealant that stays flexible.

Render joints

Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.

About our external mastic in Leverton

We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render so the joint doesn’t stand out. We work on copings & trims, concrete & block and façade panels, and common reasons people get in touch are movement joints filled with mortar instead of sealant and failed seals between different materials.

Around Leverton, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.

Each job carries a 12-month guarantee.

Location
Leverton (RG17)
Wider area
West Berkshire
Guarantee
One year on every job
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

Leverton buildings and the weather

Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Ramsbury Manor (about 4.6 miles west) are a reminder that the area around Leverton has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.

Homes close to Church of St Mary include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as Chilton Foliat Church of England Primary School, its movement joints, gutters and trims need looking after like any other building’s.

Leverton is about 9 miles west of Newbury, in West Berkshire. We carry out external mastic for householders, landlords and businesses in Leverton and the surrounding area. Across West Berkshire, we cover 155 places, and Leverton is one of them. Our Reading page covers work nearby (24 miles or so).

Here we cover the RG17 postcode area for external mastic. If you are just outside Leverton, we cover Chilton Foliat (1 mile north-west), Upper Eddington (1 mile south-east), Eddington (1 mile south-east), Hungerford (1 mile south) and Woodlands St Mary (3 miles north). We also work in nearby towns such as Newbury (9 miles east), Thatcham (12 miles east), Speenhamland (9 miles east), Lambourn (5 miles north), Shaw (9 miles east) and Kingsclere (14 miles south-east).

Around Leverton

Around Leverton, our work takes us to homes and buildings near John O'Gaunt School and Amore pub and the streets around them. For rail, the closest station is Hungerford station, about 1.1 miles south-east of the centre. For a walk, there’s Kintbury Newt Ponds.

Map of Leverton © OpenStreetMap contributors

DIY versus a professional finish

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.

Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.

What happens if it’s left?

Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Around Leverton, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.

What you get with us

  • Full insurance on every job
  • 180+ five-star Google reviews
  • Any old sealant cut out fully, not covered over
  • Neat joints and a tidy finish

Read how sealant jobs are priced and customer reviews.

What affects the cost of external mastic

The quote reflects the job in front of us. We take into account:

  • Mould in or behind the old joints
  • How much there is to do
  • Any working-time requirements on site
  • How much old sealant there is and how hard it is to remove

Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.

What we need to know

A few details help us give you an accurate quote. When you ask for a quote, tell us:

  • Any previous sealing or DIY work
  • The type of property
  • Any access issues, like height or stairs
  • What the problem is, such as mould, gaps, leaks or cracking

For a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.

For landlords and businesses

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.

Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we’re fully insured for the work.

Common questions in Leverton

Is Leverton within the area you cover?

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 do external mastic in Leverton?

Yes, Leverton is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job.

Why is there a gap in my brick wall?

Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move.

Are you ARBOMaster approved?

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

Do you do commercial work?

Yes. Hotels, offices and other businesses use us, and we’re fully insured.

How do I get a quote for external mastic in Leverton?

Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or send us an email with a short description of the job.

How long does external mastic last?

That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and reseal when it splits.

Can tenants book the work?

We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.

Signs you need external mastic in Leverton

Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.

Any of these means the joints need attention:

  • Cracked joints where brick meets render or frames
  • Sealant pulling away from one side of the joint
  • Joints with sealant missing in places
  • Joints pointed up with cement by mistake

If you let a flat or house near Hungerford station, split movement joints are easy to miss on a rental until damp shows inside.

Comparing quotes

  • What preparation is included
  • Whether all the old sealant comes out first
  • Who does the work, and how experienced they are
  • How long to leave it before use

Our hiring checklist

How it works

All our tools and materials come with us in the van, so you do not need to buy or prepare anything. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on the building. Somewhere as small as Leverton, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. Each joint is checked and the colour of the new sealant agreed.
  2. Failed sealant is removed back to clean, sound faces.
  3. Backing rod goes in so the sealant can stretch between the two faces.
  4. We prime the faces where required.
  5. We gun in low-modulus sealant and tool it neatly.

Preparing for the visit

  • Mention any parking rules near the property
  • Mention if the joints have been sealed before
  • Plan for the work area to be out of bounds to pets and children

How to get a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or send us an email.

Ask for a quote

Advice

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