Hampshire · England

External & façade joints in Mount Pleasant, Hampshire

Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Mount Pleasant and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Rigid filler in a joint that should flex
  • Failed seals between different materials
  • Failed sealant between panels on a façade

External mastic near Mount Pleasant

Walls and rooflines in Mount Pleasant

Mount Pleasant is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, 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 Priestlands School, larger buildings have long runs of movement joint that eventually need resealing.

Mount Pleasant is about 2 miles north-west of Lymington, in Hampshire. Mount Pleasant gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 683 places in Hampshire are on our list, large and small. Our Southampton page covers work nearby.

Postcode districts we cover here for external mastic: SO41. If you need external mastic at a property on Mount Pleasant Lane and Kings Hyde or a nearby road, we can help. Other places close to Mount Pleasant include Battramsley (1 mile north-east), Boldre (1 mile east), Sandy Down (1 mile north-east), Warborne (2 miles east) and Lymington (2 miles south-east). Larger places within reach include Totton (10 miles north), Hedge End (15 miles north-east), Romsey (15 miles north), Hythe (10 miles north-east), New Milton (4 miles south-west) and Ringwood (10 miles north-west).

Around Mount Pleasant

In Mount Pleasant, that means homes and buildings near The Hobler Public House and the streets around them. Mount Pleasant’s nearest station is Sway station, about 1.6 miles west. Other landmarks nearby include St Barbe Museum and Art Gallery (1.9 miles south-east) and Lymington New Forest Hospital (1.4 miles south-east). Open spaces near Mount Pleasant include Milford on Sea LNR.

Map of Mount Pleasant © OpenStreetMap contributors

External mastic for homes and businesses in Mount Pleasant

A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. If you have cracked joints where brick meets render or frames and brick movement joints where the sealant has split, we can help, on copings & trims, brickwork movement joints and concrete & block alike.

In a village or hamlet like Mount Pleasant, 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.

All our work is covered by a one-year guarantee, wherever you are in Hampshire.

Eleven members of the Mr Mastic team standing in front of branded white vans
Place
Mount Pleasant (SO41)
Region
Hampshire
Guarantee
12 months on all our work
Quotes
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

How the visit works

Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Mount Pleasant 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. Each joint is checked and the colour of the new sealant agreed.
  2. Failed sealant is removed back to clean, sound faces.
  3. Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
  4. We prime the faces where required.
  5. We gun in low-modulus sealant and tool it neatly.

Preparing for the visit

  • Let us know about parking restrictions
  • For indoor joints, keep the area dry beforehand if you can
  • Tell us about any previous sealing or DIY attempts

How to get a quote

For external mastic in Mount Pleasant, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.

Get a quick quote

Related advice

DIY sealant or a professional job?

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

How to look after the new joints

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

  • Clear growth from the base of walls and joints
  • Check external joints each spring
  • Make sure movement joints are not pointed over
  • Tell anyone working on the walls about the movement joints

Do not let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.

Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.

Mount Pleasant: your questions answered

Do you cover smaller places like Mount Pleasant?

Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.

Can you help a landlord with a rental near Sway station?

Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.

Do you use backing rod?

Backing rod goes into deeper joints as a matter of course. It controls the depth and stops the sealant bonding to the back, so the joint can move.

Do you take out the old sealant first?

Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.

Do you have insurance?

Yes, we’re fully insured for domestic and commercial work.

Can I do it myself?

It depends on the job. High-level, external movement and fire-rated joints are professional jobs.

What colours does the sealant come in?

We choose a sealant colour to suit the brick, stone or render. Exterior sealants come in a good range of colours.

What should I tell you?

Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.

How we quote for external mastic

Call for a quick quote. What matters most is:

  • How much old sealant there is and how hard it is to remove
  • How many areas need sealing
  • The size of the job
  • The product the joint needs

Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

Asking for a quote

Photos help, but a description is a good start. Please mention:

  • A few photos by email, if you can
  • The type of property
  • The rough size of the job
  • Any access issues, like height or stairs

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.

What the job involves on each surface

Concrete and blockwork

Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.

Copings and trims

Coping joints that leak let water straight down into the wall. Resealing them is a small job that protects a lot.

When to call us in Mount Pleasant

The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.

People usually contact us when they notice something like this:

  • Gaps where render, brick and frames meet
  • Water getting into walls through failed joints
  • Joints where the bead has come unstuck
  • Failed sealant between panels on a façade

Letting a property close to Sway station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.

Comparing quotes

  • What the quote includes, VAT included or not
  • Is the old sealant removed completely?
  • What happens if they find a problem under the old sealant
  • When the joint can take water or movement

Choosing a sealant specialist

For landlords and businesses

If you manage several properties in or around Mount Pleasant, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.

In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

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