Hampshire · England

Red Post Bridge External Mastic

Sealing brickwork movement joints, render, cladding and façade joints for Red Post Bridge, backed by a one-year guarantee. Ask us for a quote.

  • Brick movement joints where the sealant has split
  • Gaps where render, brick and frames meet
  • Joints pointed up with cement by mistake

External mastic for Red Post Bridge homes and businesses

External mastic in Red Post Bridge: local notes

The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

For landlords with property near Andover station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you live in an older home near Church of St Mary, an extension built onto an older house moves differently, and the joint between them takes the strain.

Red Post Bridge is about 2 miles west of Andover, in Hampshire. We carry out external mastic for homeowners, landlords and businesses in Red Post Bridge and nearby. Our Hampshire coverage runs to 683 places, and Red Post Bridge is one of them. There’s also a page for Southampton, roughly 21 miles from Red Post Bridge.

Our applicators cover all of SP11 for external mastic. If you need external mastic at a property on Newall Road, Andover Road and Red Post Lane or anywhere close by, we can help. Other places close to Red Post Bridge include Penton Corner (1 mile north), Weyhill (1 mile north-west), Penton Grafton (1 mile north), Penton Mewsey (2 miles north) and East Cholderton (2 miles west). Within a short drive, we also cover Winchester (14 miles south-east), Romsey (15 miles south), Hyde (13 miles south-east), Tidworth (6 miles north-west), Weeke (13 miles south-east) and Stanmore (14 miles south-east).

Landmarks near Red Post Bridge

Around Red Post Bridge, our work takes us to homes and buildings near The Black Swan Public House and the streets around them. The nearest railway station is Andover station, roughly 1.9 miles east. Other landmarks nearby include Andover Museum (2.6 miles east) and Andover War Memorial Hospital (2 miles north-east). For a walk, there’s Mill Lake and Anton Lakes.

Map of Red Post Bridge © OpenStreetMap contributors

About our external mastic in Red Post Bridge

External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We strip the joint back and start again. If you have rain getting behind render or cladding at a joint and cracked joints where brick meets render or frames, we can help, on concrete & block, brickwork movement joints and copings & trims alike.

Somewhere as small as Red Post Bridge, homes and farm buildings often face open ground, 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 comes with a 12-month guarantee.

Eleven members of the Mr Mastic team standing in front of branded white vans
Where
Red Post Bridge (SP11)
Wider area
Hampshire
Cover
12 months on all our work
Quote
A clear quote up front
Phone
0345 464 0079
Page updated
26 October 2026

Looking after it afterwards

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

  • Act on the first splits you see
  • Keep water from gutters off the wall
  • Keep high-pressure jets off the joints
  • Walk round the building once a year and look at the joints

Only paint over the joint if we’ve confirmed the sealant can take paint. Many exterior sealants are not designed to be painted, and paint can crack as the joint moves.

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.

Landlords, agents and businesses in Red Post Bridge

We also work for property managers and facilities teams in Red Post Bridge and across Hampshire. Several sites can be quoted together, and we’re fully insured.

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.

How we quote for external mastic

You will get a clear quote before we start. It takes into account:

  • The type of sealant required
  • How easy the joints are to reach
  • The old material and how stubborn it is
  • The number of rooms or windows

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

What we need to know

You don’t need to know the technical terms. Just tell us:

  • Access, such as stairs, a lift or height
  • What’s wrong with the joints now
  • Where the job is, and your postcode
  • The rough size of the job

To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before any work starts.

What we cannot put right

Before you book, it’s worth knowing the limits:

  • Walls that need new movement joints cut into them
  • Loose or hollow render, which needs re-rendering
  • Damp from another source, such as a leaking gutter or a bridged damp-proof course

Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly before you book.

Joints and surfaces we work on

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

Should I try it myself first?

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.

What we’re called out for in Red Post Bridge

Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and rips as the joint opens.

Keep an eye out for any of the following:

  • Sealant pulling away from one side of the joint
  • Old sealant gone brittle and cracked
  • Cracked joints where brick meets render or frames
  • Joints with sealant missing in places

Schools such as John Hanson Community School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

Before you book anyone

  • What happens if they find a problem under the old sealant
  • Who turns up on the day
  • Whether you can choose the colour
  • What preparation is included

10 questions to ask before you book

FAQs for Red Post Bridge

Will you come out to Red Post Bridge?

Yes. Red Post Bridge is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Do you work for landlords with property near Andover station?

Yes, we work for landlords and agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.

Is it worth trying it myself?

That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

What do you need from me for a quote?

Tell us what needs doing and where, plus photos if you have them. If we need more, we will ask.

Do you work at height?

That depends on the building and the joints. Where joints can be reached safely, we will do them. Give us some details and we will confirm the access.

Is it messy?

Tidy work is part of the job. We protect what’s around the joints, and we clear up when we’re done.

Do I need to be at home?

It depends on the job. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.

Do you remove the old sealant?

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

How it works

When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work begins. The work normally takes a few hours to a few days, depending on the length of joint and the access. In a small place like Red Post Bridge, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We inspect the joints and agree which need resealing and how they’ll be reached.
  2. Old sealant and any debris are cut and raked out.
  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. A flexible exterior sealant is applied and tooled in a colour to suit the wall.

Getting ready for the visit

  • Let us know about stairs, lifts or work at height
  • Let us know about earlier repairs to the joints
  • Mention any sign-in or site rules at work premises

How to get a quote

We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.

Get a quick quote

Advice

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