Hampshire · England

Blissford External Mastic

Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Blissford and across Hampshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Panel joints letting water in
  • Brick movement joints where the sealant has split
  • Failed seals between different materials

External mastic for Blissford homes and businesses

External mastic in Blissford, done properly

We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall so the joint does not stand out. We work on façade panels, brickwork movement joints and render & cladding joints, and the jobs we see most are failed seals between different materials and old sealant gone brittle and cracked.

External sealant needs dry, clean surfaces, so work around Blissford is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.

Every job comes with a 12-month guarantee, wherever you are in Hampshire.

Where
Blissford (SP6)
Region
Hampshire
Cover
A year, on every job
Price
Quoted before any work starts
Phone
0345 464 0079
Page updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

How the visit works

When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Blissford needs a little journey planning: 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. We start by walking round the building and agreeing the joints and the access.
  2. Every bit of old sealant and any mortar or debris is cut out.
  3. Joint faces are cleaned back and primed if the sealant needs it.
  4. Backing rod sized to the joint goes in to set the depth.
  5. We apply the sealant, tool it and check the whole run.

How to prepare

  • Try not to wet indoor joints just before the visit
  • Mention any tricky access
  • Tell us if parking is tricky

Get a quote

We don’t publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or drop us an email.

Ask for a quote

Related advice

How to look after the new joints

A little care helps the new joints last. Our advice:

  • Check the sealant is paintable before painting near it
  • Look over the joints every year, ideally after winter
  • Get split or bare joints resealed while the damage is small
  • Deal with leaking gutters that soak the joints below

Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.

Small splits are the time to act. Then it’s a straightforward cut-out and reseal.

Leave it or put it right?

Running new sealant over the old bead rarely lasts. New sealant does not bond well to old, weathered sealant, so the old joint is cut out fully first. Older cottages and farmhouses around Blissford can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.

Why us?

  • Trusted Arbo and Everbuild sealants
  • One-year guarantee on every job
  • ARBOMaster approved applicator
  • We agree the colour with you first

See how sealant jobs are priced or customer reviews.

How we quote for external mastic

Every job gets its own quote. These are the things that affect it:

  • Working hours on commercial sites
  • Whether old sealant or filler has to be cut out
  • Whether there’s mould to deal with
  • The number of rooms or windows

There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.

What to tell us for a quote

There’s no need for technical detail. It helps if you can tell us:

  • The type of property
  • The rough size of the job
  • Photos by email, if that is easy
  • Whether it has been sealed before

For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.

Common problems we fix in Blissford

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.

These are the problems we’re asked about most:

  • Rigid filler in a joint that should flex
  • Rain getting behind render or cladding at a joint
  • Joints with sealant missing in places
  • Leaking joints around cladding and façade panels

For an older house near a landmark such as Church of the Holy Ascension, an extension built onto an older house moves differently, and the joint between them takes the strain.

Before you book anyone

  • What product goes in the joint
  • Are they insured?
  • How much experience the applicator has
  • Is the old sealant removed completely?

Our hiring checklist

What the job involves on each surface

Concrete and blockwork

Concrete faces can be dusty and porous, so preparation is key. A primer goes on where the product requires one before the bead.

Joints between dissimilar materials

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

Your questions about external mastic in Blissford

What guarantee comes with external mastic in Blissford?

Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.

Can you do external mastic in Blissford?

Yes, Blissford is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.

Do you take out the old sealant first?

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

How long does the job take?

Typically it takes anything from a few hours to several days, depending on the building. Bigger jobs take longer.

Is it messy?

Very little: the area around the joints is protected first, and we tidy up before we go.

Do you work for landlords and businesses?

Yes, often. Several properties can be quoted together.

Are you insured?

Yes. We are fully insured.

How often do external joints need resealing?

There’s no fixed answer: joints on exposed walls or with a lot of movement age sooner. A yearly look will tell you when they need doing. Every job carries our one-year guarantee.

Blissford buildings and the weather

With historic houses such as Breamore House (about 3.8 miles north) nearby, there’s older building stock in the area around Blissford as well as newer homes. Where a home is older, 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.

Managing a site like Hyde Church of England Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.

Blissford is in Hampshire. Our applicators cover external mastic for homes and businesses in Blissford and nearby. Blissford is one of 683 towns and villages in Hampshire we cover for external mastic. There’s also a page for Southampton, about 16 miles away.

Every address in SP6 is within our area for external mastic, from the main roads to the quietest streets. Whether your property is on Blissford Hill, Blissford Cross and Abbots Well Road or anywhere close by, we can help. If you are just outside Blissford, we cover Frogham (1 mile south), Hyde (1 mile south-west), Hungerford (1 mile south-west), Stuckton (1 mile west) and Criddlestyle (1 mile north-west). Further out, we also cover Totton (11 miles east), Lymington (14 miles south-east), Romsey (13 miles north-east), New Milton (12 miles south), Ringwood (5 miles south) and Barton on Sea (13 miles south).

Local landmarks in Blissford

In Blissford, that means homes and buildings near The Fighting Cocks pub and The Burgate School and Sixth Form. Nearby you will also find Fordingbridge Doll Museum (1.6 miles west) and Godshill Castle Hill (1.8 miles north). Open spaces near Blissford include Blashford Lakes and Linbrook Lake.

Map of Blissford © OpenStreetMap contributors

What sealant work can’t fix

New sealant cannot fix everything, and we’ll tell you before we start. It won’t solve:

  • Walls that need new movement joints cut into them
  • Cracked brickwork or render that needs a builder or plasterer
  • Damp that isn’t coming from the joint

If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer before booking.

Joints and surfaces we work on

  • Concrete & block
  • Copings & trims
  • Render & cladding joints
  • Brickwork movement joints
  • Joints between brick and frames
  • Façade panels
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job