Essex · England
External & façade joints in East End, Essex
External mastic for East End, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Movement joints filled with mortar instead of sealant
- Hard, crazed mastic that has stopped moving
- Water getting into walls through failed joints
External mastic in East End
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. If you have plants rooting in failed movement joints and gaps where render, brick and frames meet, we can help, whatever the surface.
Around East End, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
You get a 12-month guarantee, the same in East End as everywhere else we work.
- Where
- East End (CO7)
- Region
- Essex
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Walls and rooflines in East End
East End is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as Brooklands Primary School, larger buildings have long runs of movement joint that eventually need resealing. In the older streets around Church of St Michael and All Angels, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Rented homes near Manningtree station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
East End is in Essex. We provide external mastic to householders, landlords and businesses in East End and the surrounding area. Our area takes in 644 places across Essex, large and small. We also work in Chelmsford, around 29 miles away.
All of CO7 is within our area for external mastic, from the main roads to the quietest streets. Local streets include East End Lane, Broom Knoll and Slough Road, all of which we cover. We also cover Brantham (1 mile south-east), Cattawade (1 mile south) and East Bergholt (2 miles west). Further out, we also cover Colchester (9 miles south-west), Clacton-on-Sea (13 miles south), Harwich (9 miles east), Camulodunum (10 miles south-west), Greenstead (8 miles south-west) and Wivenhoe (9 miles south-west).
What’s near East End
We work in homes and buildings around East Bergholt High School and Royal Oak pub, among other places. The closest station to East End is Manningtree station, about 1.8 miles south of the centre. Nearby you will also find Little Wenham Castle (2.9 miles north-west) and The Munnings Museum (3.1 miles south-west). For a walk, there’s Alton Water and Cattawade Marshes.
Aftercare tips
After the cure time, these simple habits help:
- Get split or bare joints resealed while the damage is small
- Point out the joints to other trades
- Avoid pressure-washing directly into sealant joints
- Walk round the building once a year and look at the joints
Only paint over the joint if we’ve confirmed the sealant can take paint. Many exterior sealants aren’t designed to be painted.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Catch it early and you reduce the risk.
What affects the quote in East End
The quote reflects the job in front of us. We take into account:
- The number and length of the joints
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, ring 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Asking for a quote
There’s no need for technical detail. Just tell us:
- Whether it has been sealed before
- Where the job is, and your postcode
- The problem you’ve noticed
- The rough size of the job
For external mastic in East End, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
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 its sealant has to stay flexible.
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. We prime where the sealant needs it before the bead.
What we do, step by step
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as East End, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Let us know about earlier repairs to the joints
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
Get a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
Read more
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
What happens if it’s left?
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. In a small place like East End, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Doing several joints on one visit is generally more efficient than separate visits. You’ll get one clear quote for the whole job.
What you get with us
- Domestic, commercial and hotel work
- We are fully insured
- ARBOMaster approved applicator
- Over 20 years’ experience
See how sealant jobs are priced and our reviews.
Also near East End
Also in East End
When it isn’t the sealant
Before you book, it’s worth knowing the limits too:
- Rising or penetrating damp from elsewhere in the wall
- Cracked brickwork or render that needs a builder or plasterer
- Structural movement, which needs a surveyor or engineer
If in doubt, ring 0345 464 0079 or email us and we will say what we think before booking.
What we seal
- Brickwork movement joints
- Concrete & block
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
Common questions in East End
Does the coastal weather in East End affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
I let a flat near Manningtree station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.
Where are you based?
Mr Mastic is based in Crawley. We cover East End and the rest of Essex.
Is it OK to fill a movement joint with cement?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose. A flexible sealant is the right fill.
Do you use backing rod?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. Then the sealant bonds to two faces and can move.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or drop us an email.
Will the old sealant be removed?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Do you seal joints where cladding meets other materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. The colour is chosen to suit.