Surrey · England

External & façade joints in Holmwood Corner, Surrey

Professional external mastic in and around Holmwood Corner, with old sealant always removed completely.

  • Movement joints with cracked, split or missing sealant
  • Rigid filler in a joint that should flex
  • Water getting into walls through failed joints

External mastic in Holmwood Corner

External mastic for homes and businesses in Holmwood Corner

A movement joint is a deliberate break that lets a wall expand and contract. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. Common call-outs are for movement joints with cracked, split or missing sealant and plants rooting in failed movement joints, on façade panels, concrete & block and copings & trims.

Around Holmwood Corner, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

Where
Holmwood Corner (RH5)
Wider area
Surrey
Cover
A year, on every job
Quote
A clear price before any work starts
Call
0345 464 0079
Last updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

What happens if it’s left?

Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and doesn’t last. Around Holmwood Corner, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.

What you get with us

  • Over 20 years’ experience
  • A choice of colours where the product allows
  • Domestic, commercial and hotel work
  • Every job guaranteed for a year

Take a look at what affects the cost or what customers say.

What we’re called out for in Holmwood Corner

Weeds, moss and debris in a joint are a sign the sealant has gone. Roots and dirt hold water against the wall and speed up the damage.

Signs it’s time to call us include:

  • Hard, crazed mastic that has stopped moving
  • Rain getting behind render or cladding at a joint
  • Plants rooting in failed movement joints
  • Joints pointed up with cement by mistake

Rented homes near Holmwood station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.

What your quote should include

  • What the quote includes, VAT included or not
  • How the surfaces are prepared before sealing
  • What product goes in the joint
  • The length of the guarantee

Our hiring checklist

What affects the quote in Holmwood Corner

We quote each job individually. This is what makes a difference:

  • How many areas need sealing
  • The product the joint needs
  • Working hours on commercial sites
  • Access and height

The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and give you a clear price before we start.

Asking for a quote

Before you ask for a quote, have a think about:

  • Whether it’s a home or a business
  • How we’d reach the joints
  • Pictures of the joints, sent by email
  • What’s wrong with the joints now

There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.

Looking after it afterwards

A little care helps the new joints last. Our advice:

  • Walk round the building once a year and look at the joints
  • Keep movement joints as flexible joints, not mortar
  • Show decorators and builders where the movement joints are
  • Check the sealant is paintable before painting near it

Avoid pressure-washing straight into the joints. High-pressure water can lift the edges and let water in behind.

Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.

For landlords and businesses

Letting agents often deal with us directly. Tell us the address, the job and how access works.

Landlords and agents in Holmwood Corner can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.

How the visit works

There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes a few hours for a handful of joints, longer for a whole elevation from start to finish. For a village or hamlet like Holmwood Corner, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. We start by walking round the building and agreeing the joints and the access.
  2. Every bit of old sealant and any mortar or debris is cut out.
  3. The faces are brushed clean and primed where the product requires it.
  4. We fit closed-cell backing rod to control the depth.
  5. We apply the sealant, tool it and check the whole run.

Before we arrive

  • Let us know about parking restrictions
  • For business premises, tell us about site rules or sign-in
  • Keep pets and children clear of the area while we work

How to get a quote

Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.

Ask for a quote

Related advice

Outside joints around Holmwood Corner

Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

If you live in an older home near Church of St Mary Magdalene, older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as The Weald CofE Primary School, its movement joints, gutters and trims need looking after like any other building’s.

Holmwood Corner is about 3 miles south of Dorking, in Surrey. Jobs in Holmwood Corner get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Holmwood Corner is one of 395 towns and villages in Surrey where we work. Our Crawley page covers work nearby.

Postcode districts we cover here for external mastic: RH5. We also cover South Holmwood (1 mile north-west), Beare Green (1 mile south), Coldharbour (2 miles west), Capel (3 miles south) and Friday Street (3 miles west). Further out, we also cover Guildford (12 miles west), Woking (14 miles north-west), Epsom (11 miles north), Horley (7 miles east), Redhill (7 miles north-east) and Ewell (12 miles north).

Landmarks near Holmwood Corner

We work in homes and buildings around Inholms Clay Pit and the streets around them. There’s a railway station in Holmwood Corner itself: Holmwood station. Nearby you will also find Mesolithic Museum (3.8 miles west) and Betchworth Castle (3.6 miles north). Not far away are Leith Hill and Vann Lake.

Map of Holmwood Corner © OpenStreetMap contributors

Surface by surface

Concrete and blockwork

Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it and keep the sealant to the right depth.

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 in a colour to suit the brick.

Your questions about external mastic in Holmwood Corner

Is Holmwood Corner in your area for external mastic?

Yes. Our work covers London and the South East, and Holmwood Corner is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.

Do you work for landlords with property near Holmwood station?

Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.

How do you reach high-level joints?

That depends on the building and the joints. We work on joints that can be reached safely. Give us some details and we will confirm the access.

Is it OK to seal over old sealant?

No, it will not last. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.

Can you seal joints between render and window frames?

Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.

Are you fully insured?

Yes. We are fully insured.

What do you put in the joint?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.

Will there be a smell?

Possibly a little. It fades as the sealant cures.

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