Essex · England

Ardleigh External Mastic

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

  • Water getting into walls through failed joints
  • Movement joints with cracked, split or missing sealant
  • Cracked joints where brick meets render or frames

External mastic in Ardleigh

How we handle external mastic in Ardleigh

Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. We work on render & cladding joints, copings & trims and joints between brick and frames, and people most often call us about sealant that has lost its bond to the brick or render and old sealant gone brittle and cracked.

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

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.

Location
Ardleigh (CO7)
Region
Essex
Guarantee
One year on every job
Quote
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Leave it or put it right?

It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together and it means sorting access once. Around Ardleigh, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.

Why book with us

  • An ARBOMaster approved applicator
  • You choose the colour before work begins
  • We never seal over old sealant
  • We leave the area clean and tidy

See how sealant jobs are priced or our reviews.

What external mastic looks like in Ardleigh

With historic houses such as Castle House (about 1.8 miles north) nearby, there’s older building stock in the area around Ardleigh as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. 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.

For landlords with property near Manningtree station, outside joints that have cracked can let damp into a rental, so check them between lets.

Ardleigh is about 4 miles north-east of Colchester, in Essex. Jobs in Ardleigh get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 644 places across Essex, from the larger towns to small villages. Our Chelmsford page covers work nearby, about 25 miles away.

Work in CO7 works the same way as everywhere else we cover. Streets in the area include Station Road, The Street and Mary Warner Road. Neighbouring places we cover for external mastic include Ardleigh Heath (1 mile north), Dedham Heath (1 mile north), Lamb Corner (2 miles north), Fox Street (2 miles south-west) and Dedham (2 miles north). Further out, we also cover Colchester (4 miles south-west), Clacton-on-Sea (11 miles south-east), Harwich (12 miles east), Camulodunum (6 miles south-west), Halstead (15 miles west) and Greenstead (3 miles south-west).

Landmarks near Ardleigh

We work in homes and buildings around Ardleigh Park and The Lion Inn and the streets around them. The nearest railway station is Manningtree station, roughly 3.1 miles north-east of the centre. Other landmarks nearby include Colchester Hospital (3.8 miles west) and The Munnings Museum (1.8 miles north). Open spaces near Ardleigh include Cattawade Marshes.

Map of Ardleigh © OpenStreetMap contributors

What affects the cost of external mastic

We do not publish a price list, because jobs vary so much. The quote depends on:

  • The old material and how stubborn it is
  • How many areas need sealing
  • Mould in or behind the old joints
  • How easy the joints are to reach

What you pay reflects the work, not a rough estimate. That is why we ask a few questions first.

What to tell us for a quote

Photos help, but a description is a good start. Try to tell us:

  • Photos by email, if that is easy
  • Where the job is, and your postcode
  • If it’s domestic, commercial or a hotel
  • What the problem is, such as mould, gaps, leaks or cracking

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.

Different surfaces, different methods

Joints between dissimilar materials

Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.

Cladding and façade panels

Metal and composite panels move a lot with temperature, so the joints work hard every day. The sealant is chosen with that in mind.

Signs you need external mastic in Ardleigh

A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.

The problems people generally mention when they call include:

  • Failed seals between different materials
  • Sealant that has lost its bond to the brick or render
  • Old sealant gone brittle and cracked
  • Leaking joints around cladding and façade panels

Homes close to Church of St Mary include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.

Before booking anyone

  • The length of the guarantee
  • Whether you can choose the colour
  • What happens if the job turns out different
  • Are they insured?

Choosing a sealant specialist

Common questions in Ardleigh

Will you come out to Ardleigh?

Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.

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

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

Is there a guarantee?

Yes: twelve months. If anything is not right with the work within the year, let us know and we’ll sort it.

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. Our work comes with a 12-month guarantee.

Do I need to be at home?

If the work is inside, we need someone to let us in. Once we’ve agreed the job, you don’t need to watch us work.

How do you reach high-level joints?

That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher work, tell us about the building and we will confirm what’s needed.

How long does external mastic take?

As a guide, most jobs take anything from a few hours to several days, depending on the building. Larger jobs naturally take longer, and we will say how long yours will take.

Do you have insurance?

Yes. We are fully insured, and we can confirm the details when we quote.

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. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. In a small place like Ardleigh, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  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.

Getting ready for the visit

  • Clear items away from the joints we’re working on
  • Keep children and pets away from the work area
  • Mention any leaks or damp you’ve noticed

How to get a quote

There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or drop us an email.

Get a quick quote

Related advice

Aftercare tips

Looking after new joints is easy, and it makes a real difference:

  • Deal with leaking gutters that soak the joints below
  • Avoid pressure-washing directly into sealant joints
  • Do not let climbing plants root in the sealant
  • Check external joints each spring

Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.

Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years.

Landlords, agents and businesses in Ardleigh

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.

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

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