Hampshire · England

External & façade joints in Anna Valley, Hampshire

Sealing brickwork movement joints, render, cladding and façade joints in Anna Valley, with a one-year guarantee on every job. Call for a quick quote.

  • Failed sealant between panels on a façade
  • Moss and dirt in joints with no sealant left
  • Movement joints filled with mortar instead of sealant

External mastic in Anna Valley

DIY sealant or a professional job?

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

External mastic in Anna Valley, done properly

Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We strip the joint back and start again. We work on façade panels, copings & trims and concrete & block, and people most often call us about weathered mastic that no longer stretches and panel joints letting water in.

Older homes in small places like Anna Valley may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points.

All of our work is guaranteed for twelve months, in Anna Valley and everywhere else we cover.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Place
Anna Valley (SP11)
Wider area
Hampshire
Guarantee
A year, on every job
Quotes
A clear price before we start
Telephone
0345 464 0079
Updated
26 October 2026

Different surfaces, different methods

Brickwork movement joints

Brick movement joints are often mistaken for a missing mortar line. If that’s happened, we rake it out and reseal it properly if the joint can be cleared.

Concrete and blockwork

Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it and keep the sealant to the right depth.

What we do, step by step

A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and tidy away. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In a small place like Anna Valley, access is normally 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. We cut out the failed sealant and rake out any dirt or growth.
  3. The joint faces are cleaned and primed where the sealant needs it.
  4. Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
  5. We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.

How to prepare

  • For business premises, tell us about site rules or sign-in
  • Mention any tricky access
  • Where the joints are inside, avoid wetting them before we arrive

Get a quote

Asking for a quote is easy: tell us what needs doing and where. A few photos by email make the job easier to understand, and we will take it from there.

Get a price

Advice

Anna Valley buildings and the weather

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.

In the older streets around Church of All Saints, the joints between older walls, newer extensions and the roofline need a sealant that can move. Managing a site like Balksbury Junior School? Then its movement joints, gutters and trims need looking after like any other building’s. If you let a flat or house near Andover station, split movement joints are easy to miss on a rental until damp shows inside.

Anna Valley is about 2 miles south-west of Andover, in Hampshire. If you need external mastic in Anna Valley, please phone 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover Hampshire, Anna Valley included. Across Hampshire, we cover 683 places, Anna Valley among them. Our Southampton page covers work nearby (20 miles or so).

Jobs for external mastic in SP11 is quoted and booked the same way as anywhere else. That includes homes and businesses on Taskers Drive, White Oak Way and Foundry Road. Nearby, we also carry out external mastic in Little Ann (1 mile south-west), Abbotts Ann (1 mile west), Red Rice (1 mile south), Monxton (2 miles west) and Amport (3 miles west). Within a short drive, we also cover Winchester (12 miles south-east), Chandler's Ford (15 miles south), Romsey (14 miles south), Hyde (12 miles south-east), Tidworth (8 miles north-west) and Weeke (11 miles south-east).

Around Anna Valley

Locally, jobs take us to homes and businesses close to Redrice School and John Hanson Community School and the streets around them. The nearest railway station is Andover station, about 1.4 miles north-east. Well-known places in the area include Andover War Memorial Hospital (1.6 miles north) and Andover Museum (1.7 miles north-east). The countryside around Anna Valley includes Anton Lakes and Mill Lake.

Map of Anna Valley © OpenStreetMap contributors

Keeping the joints in good condition

No joint lasts for ever, but care makes a real difference. A few tips:

  • Keep high-pressure jets off the joints
  • Make sure movement joints are not pointed over
  • Check the sealant is paintable before painting near it
  • Do not let climbing plants root in the sealant

Have a quick look at the joints each spring. Splits, gaps at the edges or plants in the joint are early warning signs.

An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.

When it is not the sealant

Honest advice matters more to us than a booking, so here’s what new sealant won’t do:

  • Loose or hollow render, which needs re-rendering
  • Damp that is not coming from the joint
  • Cracked brickwork or render that needs a builder or plasterer

If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.

Joints and surfaces we work on

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

FAQs for Anna Valley

Do you cover smaller places like Anna Valley?

Yes, Anna Valley is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

I let a flat near Andover station. Can you help?

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

Can new sealant go over the old?

No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.

Do you remove the old sealant?

Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.

When will the joints need doing again?

That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year.

Are you ARBOMaster approved?

Yes. We are an ARBOMaster approved applicator.

Do you do commercial work?

Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.

How do I get a quote for external mastic in Anna Valley?

Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or send us an email with a short description of the job.

Work for landlords, hotels and businesses

Housing providers, facilities teams and property managers book us too in Anna Valley and across Hampshire. Several sites can go on one quote, and we are fully insured for the work.

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.

What affects the cost of external mastic

You’ll get a clear quote before we start. It’s based on:

  • When we can work, for business premises
  • How easy the joints are to reach
  • Whether old sealant or filler has to be cut out
  • Which sealant suits the joint

Doing several joints on one visit generally makes better use of the time than several visits. We will give you a clear quote for the lot.

Helping us quote

The more you tell us, the more accurate the quote. When you ask for a quote, tell us:

  • If it’s domestic, commercial or a hotel
  • What’s wrong with the joints now
  • How many joints, rooms or windows are involved
  • Any access issues, like height or stairs

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or send us an email.

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