Essex · England
External Mastic in Hazeleigh
Professional external mastic in and around Hazeleigh, with old sealant always removed completely.
- Movement joints filled with mortar instead of sealant
- Sealant pulling away from one side of the joint
- Damp patches traced to an open external joint
About our external mastic in Hazeleigh
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. If you’re dealing with leaking joints around cladding and façade panels and sealant pulling away from one side of the joint, we can put it right, on joints between brick and frames, façade panels and copings & trims alike.
External sealant needs dry, clean surfaces, so work around Hazeleigh is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
All our work comes with our 12-month guarantee, wherever you are in Essex.
- Place
- Hazeleigh (CM3, CM9)
- Wider area
- Essex
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
External mastic in Hazeleigh: local notes
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. Historic houses like Danbury Place (about 3.4 miles west) are a reminder that the area around Hazeleigh has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Letting a property close to South Woodham Ferrers station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies. In the older streets around Church of St Margaret, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Hazeleigh is about 3 miles south-west of Maldon, in Essex. We carry out external mastic for homeowners, landlords and businesses in Hazeleigh, as part of our work across Essex. 644 places in Essex are on our list. For nearby work, see our Chelmsford page, about 7 miles away.
Every address in CM3 and CM9 is covered for external mastic. Whether your property is on Burnham Road and Lodge Road or a nearby road, our applicators can take on the job. If you are just outside Hazeleigh, we cover Woodham Mortimer (1 mile north-west), Woodham Walter (2 miles north), Curling Tye Green (2 miles north), Maldon (3 miles north-east) and Langford (3 miles north). Larger places within reach include Chelmsford (7 miles west), Basildon (12 miles south-west), Braintree (13 miles north), Brentwood (15 miles west), Canvey Island (13 miles south) and Billericay (10 miles south-west).
What’s near Hazeleigh
Locally, jobs take us to homes and businesses close to The Hurdlemarker's Arms. For rail, the closest station is South Woodham Ferrers station, roughly 3.9 miles south. Well-known places in the area include Baddow Hospital (5.6 miles west). Not far away are Maldon Wick.
Also near Hazeleigh
What else we do in Hazeleigh
Honest limits
We will not take on work that won’t last, so these are the limits:
- Cracked brickwork or render that needs a builder or plasterer
- Rising or penetrating damp from elsewhere in the wall
- Loose or hollow render, which needs re-rendering
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before booking.
What we seal
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Façade panels
- Render & cladding joints
- Joints between brick and frames
The process
The work is kept neat and contained to the area we’re working on. The job usually takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Hazeleigh needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Clear items away from the joints we are working on
- Keep children and pets away from the work area
- Let us know about earlier repairs to the joints
Get a quote
For a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We will send you a clear quote before any work starts.
Advice
Hazeleigh: your questions answered
Do you cover Hazeleigh for external mastic?
Yes. Our work covers London and the South East, and Hazeleigh is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing, and we will send you a clear quote.
Do you work for landlords with property near South Woodham Ferrers station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.
Do you work at height?
That depends on the building and the joints. Where joints can be reached safely, we will do them. Tell us about the building and we’ll confirm what access is needed.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It’s sealed with a flexible sealant, not mortar.
Do you remove the old sealant?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
How long does external mastic take?
That depends on how much there is to do, but most jobs take a few hours to a few days, depending on the length of joint and the access. We’ll tell you when we quote.
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Deal with leaking gutters that soak the joints below
- Point out the joints to other trades
- Avoid pressure-washing directly into sealant joints
- Check external joints each spring
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
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 so early resealing is worth it.
Leave it or put it right?
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render, so the problem grows beyond the joint itself. Around Hazeleigh, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or drop us an email and we will talk you through it.
What you get with us
- Colour agreed with you before any work starts
- We never seal over old sealant
- Fully insured
- An ARBOMaster approved applicator
Take a look at how sealant jobs are priced and our reviews.
How we quote for external mastic
We don’t publish a price list, because jobs vary so much. The quote depends on:
- The size of the job
- Any mould that needs treating
- How easy the joints are to reach
- How much old sealant there is and how hard it is to remove
Doing several joints on one visit normally makes better use of the time than several visits. You’ll get one clear quote for the whole job.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- A few pictures by email, if you can
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
We quote each job on its own. Just call 0345 464 0079 or send us an email with the details and send pictures if you have them.
Surface by surface
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. The movement joint takes that up, so the sealant in it must stay soft and stretchy.
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.