West Sussex · England

External Mastic in Pyecombe

Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Pyecombe. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Cracked joints where brick meets render or frames
  • Rain getting behind render or cladding at a joint
  • Moss and dirt in joints with no sealant left

Book external mastic in Pyecombe

About our external mastic in Pyecombe

Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product. Typical jobs include moss and dirt in joints with no sealant left and damp patches traced to an open external joint, across façade panels, brickwork movement joints and concrete & block.

In a village or hamlet like Pyecombe, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.

Your job is guaranteed for a year, as with all our work.

Location
Pyecombe (BN45)
Region
West Sussex
Guarantee
12 months on all our work
Quote
A clear price before work begins
Telephone
0345 464 0079
Updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Questions from Pyecombe

Do you work for landlords with property near Hassocks station?

Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.

Do you cover Pyecombe for external mastic?

Yes. Our work covers London and the South East, and Pyecombe is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.

What’s an expansion joint in brickwork?

Brickwork, render and cladding all move a little, so long walls have planned gaps to take that movement. It’s closed with backing rod and a flexible sealant.

Do you guarantee your work?

Yes. There’s a 12-month guarantee on every job, wherever you are.

Is it OK to seal over old sealant?

No. The old sealant always comes out first, so the new joint bonds to clean surfaces.

What do you put in the joint?

Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.

Will you leave a mess?

Not at all. We work neatly, protect the area around the joints and tidy up afterwards.

Do you take out the old sealant first?

Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

Landlord and commercial work in Pyecombe

From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.

In hotels, rooms out of use cost money, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.

What we are called out for in Pyecombe

Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.

Most people get in touch after spotting something like this:

  • Gaps where render, brick and frames meet
  • Hard, crazed mastic that has stopped moving
  • Plants rooting in failed movement joints
  • Failed sealant between panels on a façade

For landlords with property near Hassocks station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.

What your quote should include

  • How hidden problems are handled
  • Whether you can choose the colour
  • How much experience the applicator has
  • How the joint is cleaned and prepared

Choosing a sealant specialist

Should I try it myself first?

If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full 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.

The process

Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours to a few days, depending on the length of joint and the access. Somewhere as small as Pyecombe, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
  2. We cut out the failed sealant and rake out any dirt or growth.
  3. We clean both faces of the joint and prime them where the product calls for it.
  4. Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
  5. We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.

Preparing for the visit

  • For business premises, tell us about site rules or sign-in
  • Mention any parking rules near the property
  • Where the joints are inside, avoid wetting them before we arrive

Ask for a quote

Need a quote? Please call 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.

Get a price

Advice

How to look after the new joints

A little care helps the new joints last. We recommend:

  • Check external joints each spring
  • Leave the joints unpainted unless we have said otherwise
  • Wash walls gently around the sealant
  • Never let anyone fill a movement joint with mortar

Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.

If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.

Why deal with it now?

The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost, so the damage spreads beyond the joint. Around Pyecombe, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

What it costs depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.

Why Pyecombe customers choose us

  • Every job guaranteed for a year
  • Tidy, careful work
  • 20+ years of sealant experience
  • Colour agreed with you before work begins

See our cost guide or what customers say.

Honest limits

To be straight with you, there are a few things sealant will not fix:

  • Cracking across the wall rather than at a joint
  • Subsidence or other structural problems
  • Walls that need new movement joints cut into them

If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.

Joints and surfaces we work on

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

Pyecombe buildings and the weather

Historic houses like Preston Manor & Gardens (about 4 miles south) are a reminder that the area around Pyecombe 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. 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.

In the older streets around Church of the Transfiguration, an extension built onto an older house moves differently, and the joint between them takes the strain. Managing a site like Downlands Community School? Then its movement joints, gutters and trims need looking after like any other building’s.

Pyecombe is about 4 miles south of Burgess Hill, in West Sussex. Every kind of property in Pyecombe can book us for external mastic. Every job comes with our 12-month guarantee. Pyecombe is one of 371 towns and villages in West Sussex where we work.

Every address in BN45 is covered for external mastic, from the main roads to the quietest streets. External mastic is available to properties on London Road, School Lane and Church Hill and the roads around them. We also cover the places around Pyecombe: Saddlescombe (1 mile south-west), Waterhall (2 miles south), Patcham (3 miles south), Westdene (3 miles south) and Hollingbury (3 miles south-east). We also work in nearby towns such as Crawley (15 miles north), Horsham (13 miles north-west), Worthing (12 miles south-west), Haywards Heath (7 miles north-east), Burgess Hill (4 miles north) and Shoreham-by-Sea (6 miles south-west).

What’s near Pyecombe

The closest station to Pyecombe is Hassocks station, about 1.9 miles north-east of the centre. A little further out are Clayton Castle (1 mile north-east) and The Budding Foundation Museum of Gardening (1.7 miles north). Not far away are Wolstonbury Hill and Ladies Mile.

Map of Pyecombe © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job