Essex · England
Ivy Chimneys External Mastic
External mastic in Ivy Chimneys from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Movement joints with cracked, split or missing sealant
- Old sealant gone brittle and cracked
- Gaps where render, brick and frames meet
External mastic in Ivy Chimneys
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall so the line blends in. Common call-outs are for leaking joints around cladding and façade panels and moss and dirt in joints with no sealant left, across concrete & block, brickwork movement joints and render & cladding joints.
Around Ivy Chimneys, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.
You get a 12-month guarantee, the same in Ivy Chimneys as everywhere else we work.
- Place
- Ivy Chimneys (CM16)
- Region
- Essex
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. 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 Ivy Chimneys, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Try not to wet indoor joints just before the visit
- Let us know about parking restrictions
Get a quote
Need a quote? Please call 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear quote before work begins.
Related advice
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What we are called out for in Ivy Chimneys
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
The most common problems we see are:
- Joints with sealant missing in places
- Moss and dirt in joints with no sealant left
- Water getting into walls through failed joints
- Sealant pulling away from one side of the joint
For site and facilities teams at buildings such as Ivy Chimneys Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What your quote should include
- What happens if they find a problem under the old sealant
- What guarantee comes with the work
- Are they insured?
- Is VAT in the price?
Ivy Chimneys buildings and the weather
With historic houses such as Hill Hall (about 2.4 miles south-east) nearby, there’s older building stock in the area around Ivy Chimneys as well as newer homes. Where a home is older, 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St John the Baptist include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Ivy Chimneys is about 1 mile south-west of Epping, in Essex. Every kind of property in Ivy Chimneys can book us for external mastic. Every job comes with our one-year guarantee. Our Essex coverage runs to 644 places, and Ivy Chimneys is one of them. You can also see our page for London, about 16 miles away.
Every address in CM16 is within our area for external mastic. Whether your property is on High Road, Theydon Road and Centre Avenue or a nearby road, our applicators can take on the job. Close by, we work in Epping (1 mile north-east), Steward's Green (1 mile east), Fiddlers Hamlet (1 mile east), Theydon Garnon (2 miles south-east) and Hobbs Cross (2 miles south-east). We also work in nearby towns such as Harlow (6 miles north), Brentwood (10 miles south-east), Billericay (14 miles east), Loughton (3 miles south-west), Waltham Abbey (4 miles west) and Stansted Mountfitchet (15 miles north).
What’s near Ivy Chimneys
Locally, jobs take us to homes and businesses close to The Black Lion pub and St John's Church of England Voluntary Controlled School, among other places. Nearby you’ll also find Epping Signalling Museum (0.6 miles north-east) and St. Margaret's Hospital (1.4 miles north-east). For a walk, there’s Lippitts Hill and Gernon Bushes.
Questions from Ivy Chimneys
Can you do external mastic in Ivy Chimneys?
Yes. Our work covers London and the South East, and Ivy Chimneys is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job.
What guarantee comes with external mastic in Ivy Chimneys?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Do you work for landlords and businesses?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels across Essex.
Where are you based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Check the sealant is paintable before painting near it
- Point out the joints to other trades
- Fix overflowing gutters above sealed joints
- Keep high-pressure jets off the joints
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal.
When it is not the sealant
A few problems are outside what sealant work can do:
- Damp that isn’t coming from the joint
- Loose or hollow render, which needs re-rendering
- Adding movement joints to masonry that has none
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Façade panels
- Render & cladding joints
- Concrete & block
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
Landlords, agents and businesses in Ivy Chimneys
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
How the job changes by surface
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. The sealant is chosen with that in mind.
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.