Hampshire · England

External & façade joints in Borden, Hampshire

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

  • Gaps where render, brick and frames meet
  • Water getting into walls through failed joints
  • Sealant pulling away from one side of the joint

External mastic for Borden homes and businesses

How to look after the new joints

So the new joints stay in good condition:

  • Point out the joints to other trades
  • Clear growth from the base of walls and joints
  • Keep high-pressure jets off the joints
  • Check external joints each spring

Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.

Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.

About our external mastic in Borden

Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a matching colour. If you’re dealing with failed seals between different materials and joints where the bead has come unstuck, we can put it right.

Older homes in small places like Borden may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.

We stand behind the work with a one-year guarantee.

Location
Borden (GU30)
Region
Hampshire
Guarantee
One year on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

How it works

Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Borden 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. First, the joints are inspected and the access agreed.
  2. We cut out the old mastic and rake out anything in the joint.
  3. The faces are brushed clean and primed where the product requires it.
  4. Backing rod sized to the joint goes in to set the depth.
  5. The exterior sealant is applied, tooled and checked along its length.

Getting ready for the visit

  • Tell us about any previous sealing or DIY attempts
  • Try not to wet indoor joints just before the visit
  • Clear items away from the joints we are working on

Ask for a quote

To get a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You will have a clear quote before we start.

Ask for a quote

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What affects the quote in Borden

Your quote is based on your job. We take into account:

  • The old material and how stubborn it is
  • Any mould that needs treating
  • Working hours on commercial sites
  • How many rooms, windows or areas are involved

Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.

Helping us quote

What to tell us when you ask for a quote:

  • Where the job is, and your postcode
  • Photos by email, if that is easy
  • If someone has resealed it before
  • Access, such as stairs, a lift or height

Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved and give you a clear quote.

Signs you need external mastic in Borden

Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it cannot stretch and rips as the joint opens.

Signs it’s time to call us include:

  • Sealant pulling away from one side of the joint
  • Old sealant gone brittle and cracked
  • Failed sealant between panels on a façade
  • Movement joints with cracked, split or missing sealant

In the older streets around Church of St Peter, the joints between older walls, newer extensions and the roofline need a sealant that can move.

Comparing quotes

  • Whether the sealant suits the joint
  • How the colour is chosen
  • What preparation is included
  • How long the guarantee is

10 questions to ask before booking

Borden questions

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

Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.

Is Borden in your area for external mastic?

Yes, Borden is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.

Where do you work from?

Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Can you reach joints on upper floors?

It depends on the height and the site. Ground-floor joints are simple; for higher work, tell us about the building and we will confirm what’s needed.

Can you do several jobs on one visit?

Yes. Tell us about everything you’d like done and you will get one quote.

Can a movement joint be filled with mortar?

No. A mortar-filled joint cannot move, so the wall cracks somewhere else instead. Use a flexible sealant with backing rod.

What sealant do you use?

We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.

What colours does the sealant come in?

The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin, matched as closely as the range allows.

Should I try it myself first?

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.

Landlords, agents and businesses in Borden

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.

Outside joints around Borden

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. Historic houses like Cowdray House (about 4.4 miles south-east) are a reminder that the area around Borden has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.

If you let a flat or house near Liss station, outside joints that have cracked can let damp into a rental, so check them between lets.

Borden is about 5 miles east of Petersfield, in Hampshire. If you need external mastic in Borden, please phone 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Hampshire. Borden is one of 683 towns and villages in Hampshire we cover. We also work in Portsmouth, around 18 miles away.

Every address in GU30 is within our area for external mastic. Nearby, we also carry out external mastic in Trotton Marsh (1 mile east), Rogate (1 mile south-west), Chithurst (1 mile south-east), Milland (2 miles north-east) and Rake (2 miles north-west). Larger places within reach include Havant (13 miles south-west), Horndean (11 miles south-west), Alton (11 miles north-west), Waterlooville (13 miles south-west), Petersfield (5 miles west) and Purbrook (14 miles south-west).

Near you in Borden

The nearest railway station is Liss station, roughly 3.6 miles north-west of the centre. Nearby you’ll also find Midhurst Community Hospital (4.1 miles south-east). The countryside around Borden includes Wheeler's Down and Iping and Stedham Commons.

Map of Borden © OpenStreetMap contributors

Honest limits

New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:

  • Movement that is more than a sealant joint can take
  • Loose or hollow render, which needs re-rendering
  • Walls that need new movement joints cut into them

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

Where we work in Borden

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