Essex · England
Ardley End External Mastic
Problem with your movement joints in Ardley End? We remove the old material, prepare the joints and seal them properly.
- Failed sealant between panels on a façade
- Joints with sealant missing in places
- Water getting into walls through failed joints
How we handle external mastic in Ardley End
Movement joints let brickwork, render and cladding expand and shrink without cracking. Its sealant has to flex with the building, season after season, and when it fails, the wall takes the strain and water finds a way in. If you’re dealing with rain getting behind render or cladding at a joint and leaking joints around cladding and façade panels, we can put it right, on render & cladding joints, copings & trims and concrete & block alike.
External sealant needs dry, clean surfaces, so work around Ardley End is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
Every job is covered by a 12-month guarantee.
- Place
- Ardley End (CM22)
- Wider area
- Essex
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the quote in Ardley End
We don’t publish a price list, because no two jobs are the same. What we look at:
- How much there is to do
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- The type of sealant required
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- Whether it’s a home or a business
- Any previous sealing or DIY work
- What’s wrong with the joints now
- Pictures of the joints, sent by email
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
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DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Why deal with it now?
Running new sealant over the old bead rarely lasts. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out. Older cottages and farmhouses around Ardley End can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What you get with us
- Colour picked to suit the job
- More than 20 years in sealant work
- An ARBOMaster approved applicator
- A 12-month guarantee on all work
Read what affects the cost and customer reviews.
Ardley End buildings and the weather
With historic houses such as Barrington Hall (about 2.4 miles north-east) nearby, there’s older building stock in the area around Ardley End as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Holy Trinity Church, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you let a flat or house near Sawbridgeworth station, outside joints that have cracked can let damp into a rental, so check them between lets.
Ardley End is about 5 miles south-east of Bishop's Stortford, in Essex. For external mastic in and around Ardley End, please ring 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover Essex. Ardley End is one of 644 towns and villages in Essex we cover for external mastic. You can also see our page for Chelmsford, about 13 miles away.
Every address in CM22 is covered for external mastic. That includes homes and businesses on Matching Road, Ardley Crescent and Friars Lane and the roads around them. Other places close to Ardley End include Hatfield Heath (1 mile north-west), Hatfield Broad Oak (2 miles north-east), Bedlar's Green (3 miles north), Aythorpe Roding (4 miles east) and Hellman's Cross (4 miles north-east). Within a short drive, we also cover Chelmsford (13 miles south-east), Harlow (5 miles south-west), Brentwood (13 miles south), Billericay (15 miles south-east), Loughton (13 miles south-west) and Saffron Walden (15 miles north).
Local landmarks in Ardley End
In Ardley End, that means homes and buildings near The Stag Public House. The nearest railway station is Sawbridgeworth station, roughly 2.3 miles west. Other landmarks nearby include Harlow Mill (3.9 miles west) and Herts and Essex Hospital (4.3 miles north). Green spaces nearby include Sawbridgeworth Marsh and Portingbury Hills.
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours to a few days, depending on the length of joint and the access, and the area is left clean. Somewhere as small as Ardley End, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- Keep children and pets away from the work area
- Clear the area around the work
- Mention any tricky access
Getting a quote
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. We will give you a clear price before any work starts.
Related advice
Do you need external mastic in Ardley End?
If plants are growing out of a joint, the sealant has usually failed or was never there. Roots and dirt hold water against the wall and speed up the damage.
These are the problems we’re asked about most:
- Movement joints with cracked, split or missing sealant
- Weeds or debris growing in open joints
- Failed seals between different materials
- Damp patches traced to an open external joint
Schools such as Hatfield Heath Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What to look for in a quote
- How the joint is cleaned and prepared
- Are they insured?
- How hidden problems are handled
- What guarantee comes with the work
Common questions in Ardley End
Do you work for landlords with property near Sawbridgeworth station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Can you do external mastic in Ardley End?
Yes, Ardley End is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing, and we’ll send you a clear quote.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
How long before the joint can be used?
It depends on the product. We tell you how long to leave it before we go.
Where do you work from?
We work from Crawley. Our applicators cover Ardley End, along with the rest of our area.
Do you work at height?
It depends on the building. We work on joints that can be reached safely. Tell us about the building and we’ll confirm what access is needed.
Why do you put foam in the joint first?
The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.
What is a movement joint?
It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.
How the job changes by surface
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Copings and trims
Coping and trim joints face rain and sun head on. We reseal them with an exterior sealant suited to the material.
Honest limits
Sealant is not the answer to every problem, and we will tell you before any work starts. It will not solve:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Movement that is more than a sealant joint can take
- Loose or hollow render, which needs re-rendering
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Where we work in Ardley End
- Concrete & block
- Render & cladding joints
- Façade panels
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims