West Sussex · England

External & façade joints in Houghton, West Sussex

Sealing brickwork movement joints, render, cladding and façade joints for Houghton, backed by a 12-month guarantee. Ask us for a quote.

  • Hard, crazed mastic that has stopped moving
  • Failed sealant between panels on a façade
  • Gaps where render, brick and frames meet

External mastic for Houghton homes and businesses

External mastic in Houghton, done properly

On houses, flats and commercial buildings across Houghton, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. Typical jobs include damp patches traced to an open external joint and failed sealant between panels on a façade, on concrete & block, copings & trims and brickwork movement joints.

Older homes in small places like Houghton may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.

There’s a 12-month guarantee on every job, large or small.

Place
Houghton (BN18)
Wider area
West Sussex
Cover
One year on every job
Quotes
A clear price before work begins
Call
0345 464 0079
Updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Houghton buildings and the weather

London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Bignor Roman Villa (about 2.8 miles north-west) are a reminder that the area around Houghton has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.

If you live in an older home near The Parish Church of St Nicholas, older walls, gutters and the joints where extensions meet them need a flexible sealant. For landlords with property near Amberley station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Managing a site like Dorset House School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

Houghton is about 6 miles north of Littlehampton, in West Sussex. Every kind of property in Houghton is covered for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. Houghton is one of 371 towns and villages in West Sussex we cover. For nearby work, see our Brighton page (19 miles or so).

Every address in BN18 is within our area for external mastic. We also cover Arundel (3 miles south), Warningcamp (3 miles south-east), Crossbush (3 miles south), Tortington (4 miles south) and Poling (4 miles south-east). Within a short drive, we also cover Worthing (8 miles south-east), Bognor Regis (9 miles south-west), Chichester (11 miles west), Selsey (15 miles south-west), Littlehampton (6 miles south) and Shoreham-by-Sea (13 miles east).

Near you in Houghton

Around Houghton, our work takes us to homes and buildings near Arundel Park. For rail, the closest station is Amberley station, roughly 0.5 miles north-east of the centre. Nearby you’ll also find Arundel and District Hospital (2.7 miles south) and Amberley Castle (1.2 miles north-east). For a walk, there’s Amberley Wild Brooks and Bignor Hill.

Map of Houghton © OpenStreetMap contributors

The process

All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Houghton, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We start by checking each joint, agreeing the ones to redo and how we will reach them.
  2. We cut out the failed sealant and rake out any dirt or growth.
  3. Both sides are cleaned back to sound material and primed if needed.
  4. Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
  5. A flexible exterior sealant is applied and tooled in a colour to suit the wall.

Before we arrive

  • Mention if the joints have been sealed before
  • Let us know about stairs, lifts or work at height
  • For indoor joints, keep the area dry beforehand if you can

Ask for a quote

Need a quote? Please call 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and give you a clear quote before we start.

Ask for a quote

Related advice

What sealant work can’t fix

It helps to know what we cannot do too:

  • Failed render or damaged cladding panels
  • Movement that is more than a sealant joint can take
  • Cracking across the wall rather than at a joint

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

Where we work in Houghton

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

FAQs for Houghton

Is Houghton in your area for external mastic?

Yes. We work across London and the South East, and Houghton is part of that. Just call 0345 464 0079 or email us with a few details of the job.

Do you cover smaller places like Houghton?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Do you hold any approvals?

Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.

Do you do commercial work?

Yes. We’ve worked for hotels, offices and other businesses.

Can you seal over the old sealant?

No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.

What does external mastic cost?

Size, access and the old material all affect the cost. Call for a quick quote.

What colours does the sealant come in?

We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin, matched as closely as the range allows.

Should I try DIY first?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

Different surfaces, different methods

Joints between dissimilar materials

Different materials may need different primers. We prepare both faces so the sealant bonds properly.

Concrete and blockwork

The face of concrete or block is often dusty, so cleaning and priming matter. We prime where the sealant needs it before the bead.

Work for landlords, hotels and businesses

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.

What affects the cost of external mastic

The price is agreed before any work begins. It’s based on:

  • Any mould that needs treating
  • Whether old sealant or filler has to be cut out
  • The size of the job
  • Working hours on commercial sites

A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we will give you an honest view and a quote.

What to tell us for a quote

When you call or email, these details help:

  • What’s wrong with the joints now
  • Pictures of the joints, sent by email
  • Whether it’s a home or a business
  • If someone has resealed it before

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or send us an email.

DIY versus a professional finish

If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.

If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.

Keeping the joints in good condition

Once the sealant has cured, a few habits help it last:

  • Never let anyone fill a movement joint with mortar
  • Fix overflowing gutters above sealed joints
  • Check the sealant is paintable before painting near it
  • Avoid pressure-washing directly into sealant joints

Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.

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.

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