Hampshire · England

External Mastic in Hursley

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

  • Brick movement joints where the sealant has split
  • Weathered mastic that no longer stretches
  • Water getting into walls through failed joints

External mastic for Hursley homes and businesses

What we’re called out for in Hursley

Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.

It’s worth asking for a quote if you see:

  • Damp patches traced to an open external joint
  • Sealant that has lost its bond to the brick or render
  • Failed seals between different materials
  • Failed sealant between panels on a façade

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

Before you book anyone

  • What happens if the job turns out different
  • What preparation is included
  • Whether VAT is included
  • Is the old sealant removed completely?

Our hiring checklist

External mastic for homes and businesses in Hursley

Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two. We work on concrete & block, brickwork movement joints and copings & trims, and people most often call us about weeds or debris growing in open joints and rain getting behind render or cladding at a joint.

Around Hursley, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.

You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or drop us an email.

Location
Hursley (SO21)
Wider area
Hampshire
Cover
A year, on every job
Price
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

How it works

We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Hursley, 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. First, the joints are inspected and the access agreed.
  2. We cut out the old mastic and rake out anything in the joint.
  3. Joint faces are cleaned back and primed if the sealant needs it.
  4. We fit closed-cell backing rod to control the depth.
  5. The exterior sealant is applied, tooled and checked along its length.

Getting ready for the visit

  • For business premises, tell us about site rules or sign-in
  • For indoor joints, keep the area dry beforehand if you can
  • Keep pets and children clear of the area while we work

Get a quote

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

Ask for a quote

Advice

When something else is needed

Before booking, it’s worth knowing the limits:

  • Adding movement joints to masonry that has none
  • Subsidence or other structural problems
  • Cracking across the wall rather than at a joint

Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.

Where we work in Hursley

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

Why deal with it now?

Water gets in through a failed movement joint and can run behind render or cladding. Resealing early keeps the job to the joint itself, rather than the wall around it. Where a wall is exposed, as many are in small places like Hursley, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.

Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.

Why Hursley customers choose us

  • You choose the colour before work begins
  • Every job guaranteed for a year
  • White, clear, grey or coloured to suit, where the product allows
  • Sealant colour chosen to suit

See what affects the cost or our reviews.

Outside joints around Hursley

Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

If you look after a building such as John Keble Church of England Primary School, its movement joints, gutters and trims need looking after like any other building’s. If you live in an older home near Church of All Saints, an extension built onto an older house moves differently, and the joint between them takes the strain.

Hursley is about 3 miles north of Chandler's Ford, in Hampshire. Whether you are in the middle of Hursley or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 683 places across Hampshire. We also work in Southampton, around 7 miles away.

Our applicators cover all of SO21 for external mastic. We cover properties on Sussex Close, Heathcote Place and Port Lane. We also cover Ladwell (1 mile south), Oliver's Battery (2 miles north-east), Compton (2 miles east), Otterbourne (2 miles south-east) and South Down (2 miles east). Larger places within reach include Winchester (4 miles north-east), Eastleigh (4 miles south-east), Fareham (15 miles south-east), Andover (13 miles north), Totton (9 miles south-west) and Chandler's Ford (3 miles south).

What’s near Hursley

In Hursley, that means homes and buildings near Thornden School and The King's Head pub. For rail, the closest station is Shawford station, about 2.7 miles east of the centre. Other landmarks nearby include Winchester Castle (3.9 miles north-east) and Royal Hampshire County Hospital (3.6 miles north-east). The countryside around Hursley includes Twyford Down and Flexford Nature Reserve.

Map of Hursley © OpenStreetMap contributors

For landlords and businesses

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.

Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.

Your questions about external mastic in Hursley

Is Hursley in your area for external mastic?

Yes, Hursley is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.

Is Hursley within the area you cover?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

I’m a tenant. Can you help?

We can work for tenants, landlords or agents. Get your landlord’s agreement first.

What sealant do you use?

It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.

Why is there a gap in my brick wall?

A vertical gap in a long brick wall is normally a movement joint. It gives the wall room to move, and it should be sealed with a flexible sealant.

Do you work for letting agents?

Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.

What does external mastic cost?

Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or drop us an email and tell us what needs doing and where.

Will there be a smell?

Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.

Keeping the joints in good condition

To keep the joints looking good and working properly:

  • Check external joints each spring
  • Have failed joints looked at early
  • Keep soil, plants and ivy away from the joints
  • Deal with leaking gutters that soak the joints below

Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead.

Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.

Quotes for external mastic in Hursley

We don’t publish a price list. The quote depends on:

  • Working hours on commercial sites
  • How many areas need sealing
  • Whether there’s mould to deal with
  • The old material and how stubborn it is

What you pay reflects the work, not a rough estimate. That is why we ask about the job first and agree the price before starting.

Asking for a quote

To help us quote quickly, let us know:

  • Where the job is, and your postcode
  • If someone has resealed it before
  • Roughly how big the job is
  • How we’d reach the joints

There’s no standard price list. Instead, we give you a clear quote for your job. To get started, call 0345 464 0079 or email us.

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