Essex · England
Epping Green External Mastic
Problem with your movement joints in Epping Green? We remove the old material, prepare the joints and seal them properly.
- Damp patches traced to an open external joint
- Old sealant gone brittle and cracked
- Joints pointed up with cement by mistake
What happens on the day
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Epping Green, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- We clean both faces of the joint and prime them where the product calls for it.
- 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.
Before we arrive
- Mention any sign-in or site rules at work premises
- Mention any tricky access
- Mention any parking rules near the property
Getting a quote
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.
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External mastic in Epping Green
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. If you have gaps where render, brick and frames meet and rigid filler in a joint that should flex, we can put it right, on concrete & block, brickwork movement joints and façade panels alike.
Outside joints can only be sealed when they’re dry, so work in Epping Green is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
All our work comes with a one-year guarantee.
- Place
- Epping Green (CM16)
- Region
- Essex
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Epping Green
What else we do in Epping Green
Why act early in Epping Green
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. Around Epping Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why choose Mr Mastic in Epping Green
- 20+ years of sealant experience
- ARBOMaster approved applicator
- We’re fully insured
- You choose the colour before work begins
See our cost guide or customer reviews.
FAQs for Epping Green
Is Epping Green within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Epping Green in your area for external mastic?
Yes. Our work covers London and the South East, and Epping Green is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose, and the wall may crack nearby. We’ll reseal it with a flexible sealant.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Epping Green and the rest of Essex.
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 will confirm what access is needed.
Can you seal over the old sealant?
No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Look over the joints every year, ideally after winter
- Make sure movement joints aren’t pointed over
- Leave the joints unpainted unless we have said otherwise
- Keep water from gutters off the wall
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage.
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Failed render or damaged cladding panels
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracks in the bricks or render themselves, away from the joints
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Where we work in Epping Green
- Concrete & block
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
What we are called out for in Epping Green
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
Most people get in touch after spotting something like this:
- Failed seals between different materials
- Joints where the bead has come unstuck
- Panel joints letting water in
- Old sealant gone brittle and cracked
For landlords with property near Roydon station, outside joints that have cracked can let damp into a rental, so check them between lets.
What to look for in a quote
- How the surfaces are prepared before sealing
- Whether they’re fully insured
- Whether VAT is included
- What happens if they find a problem under the old sealant
Walls and rooflines in Epping Green
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. With historic houses such as Hill Hall (about 4.9 miles south-east) nearby, there’s older building stock in the area around Epping Green as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
In the older streets around Church of All Saints, older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as Epping Upland CofE Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Epping Green is about 3 miles south-west of Harlow, in Essex. From the centre of Epping Green to the outskirts, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Across Essex, we cover 644 places, and Epping Green is one of them. For nearby work, see our London page.
Every address in CM16 is within our area for external mastic. External mastic is available to properties on Elm Close, Epping Road and Green Close. If you are just outside Epping Green, we cover Epping Upland (1 mile south-east), Jack's Hatch (1 mile north), Broadley Common (1 mile north-west), Nazeing (2 miles north-west) and Bumble's Green (2 miles west). Within a short drive, we also cover Harlow (3 miles north-east), Brentwood (12 miles south-east), Loughton (6 miles south), Waltham Abbey (4 miles south-west), Stansted Mountfitchet (13 miles north-east) and Harold Wood (11 miles south-east).
What’s near Epping Green
Around Epping Green, our work takes us to homes and buildings near Nazeing Triangle, The Cock and Magpie pub and Stewards School. Epping Green’s nearest station is Roydon station, roughly 3.7 miles north-west. A little further out are Harlow Mill (4.8 miles north-east) and St. Margaret's Hospital (2.5 miles south-east). The countryside around Epping Green includes Cheshunt Lake and Gernon Bushes.
What the job involves on each surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. The movement joint takes that up, so the sealant in it must stay soft and stretchy.