Hampshire · England

External & façade joints in Liss Forest, Hampshire

Problem with your movement joints in Liss Forest? We remove the old material, prepare the joints and seal them properly.

  • Rain getting behind render or cladding at a joint
  • Joints where the bead has come unstuck
  • Failed seals between different materials

Book external mastic in Liss Forest

Why deal with it now?

Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. Older cottages and farmhouses around Liss Forest can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

The cost depends on the amount of work, how much old material has to come out and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.

Why book with us

  • Colour agreed with you before work begins
  • One-year guarantee on every job
  • Homes, businesses and hotels
  • Neat joints and a tidy finish

Read what affects the cost or our reviews.

External mastic for homes and businesses in Liss Forest

For buildings in Liss Forest, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. We work on brickwork movement joints, render & cladding joints and concrete & block, and people most often call us about weathered mastic that no longer stretches and gaps where render, brick and frames meet.

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

The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.

Location
Liss Forest (GU33)
Wider area
Hampshire
Cover
One year on every job
Quotes
A clear price before work begins
Phone
0345 464 0079
Last updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Landlords, agents and businesses in Liss Forest

Landlords and agents in Liss Forest can book us as well as householders. Resealing between tenancies keeps a property looking cared for.

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.

What happens on the day

Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take anything from a few hours to several days, depending on the building. Somewhere like Liss Forest needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. First, the joints are inspected and the access agreed.
  2. We cut out the old mastic and rake out anything in the joint.
  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.

Getting ready for the visit

  • Let us know about earlier repairs to the joints
  • Move anything stored near the joints
  • Let us know about parking restrictions

How to get a quote

For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.

Get a quick quote

Advice

Different surfaces, different methods

Copings and trims

Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.

Joints between dissimilar materials

Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.

When it isn’t the sealant

It helps to know what we can’t do too:

  • Cracking across the wall rather than at a joint
  • Render that is blown, hollow or coming away
  • Walls that need new movement joints cut into them

If you are not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer.

Joints and surfaces we work on

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

What external mastic looks like in Liss Forest

London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

If you look after a building such as Liss Infant School, larger buildings have long runs of movement joint that eventually need resealing. For an older house near a landmark such as St Saviour's, old and new materials meet at the roofline and walls, which is where sealant earns its keep. If you let a flat or house near Liss station, split movement joints are easy to miss on a rental until damp shows inside.

Liss Forest is about 4 miles north-east of Petersfield, in Hampshire. For external mastic in and around Liss Forest, please phone 0345 464 0079 or drop us an email for a quick quote. We cover Hampshire from our Crawley base, Liss Forest included. Our Hampshire coverage runs to 683 places, Liss Forest among them. There’s also a page for Portsmouth, about 19 miles away.

Here we cover the GU33 postcode area for external mastic. External mastic is available to properties on Forest Road, Warren Road and Newfield Road and the roads around them. Nearby, we also carry out external mastic in The Mint (1 mile south-east), Liss (1 mile south), West Liss (1 mile south), Greatham (1 mile north) and Rake (1 mile south-east). Larger places within reach include Havant (14 miles south), Fleet (15 miles north), Horndean (11 miles south-west), Aldershot (14 miles north), Alton (8 miles north-west) and Waterlooville (13 miles south-west).

Around Liss Forest

Typical jobs here are in homes near The Temple Inn and the streets around them. The nearest railway station is Liss station, roughly 0.7 miles south-west of the centre. Other landmarks nearby include Chase Community Hospital (3.8 miles north) and The Romany Museum (3.7 miles north-west). Open spaces near Liss Forest include Liss Riverside Railway Walk North and Wheatham Hill.

Map of Liss Forest © OpenStreetMap contributors

What affects the quote in Liss Forest

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

  • Any working-time requirements on site
  • How much old sealant there is and how hard it is to remove
  • How many rooms, windows or areas are involved
  • Access and height

Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

What to tell us for a quote

When you call or email, it’s useful to know:

  • Pictures of the joints, sent by email
  • Whether it’s a home or a business
  • If someone has resealed it before
  • Any access issues, like height or stairs

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

DIY sealant or a professional job?

A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.

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.

Common questions in Liss Forest

Do you cover smaller places like Liss Forest?

Yes, Liss Forest is covered. 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.

Is Liss Forest in your area for external mastic?

Yes, Liss Forest is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we will send you a clear quote.

Do you guarantee your work?

Yes. Every job comes with a 12-month guarantee.

Can I do it myself?

Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.

What is a movement joint?

Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking and needs a flexible seal, not mortar.

Do you work at height?

It depends on the building. We work on joints that can be reached safely. Tell us about the building and we will confirm what access is needed.

Do you work for landlords and businesses?

Yes. We work in homes, commercial premises and hotels, and we are fully insured.

Where is Mr Mastic based?

We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.

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