Essex · England
Easthorpe External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Easthorpe, with a 12-month guarantee on every job. Ask us for a quote.
- Movement joints filled with mortar instead of sealant
- Failed seals between different materials
- Brick movement joints where the sealant has split
External mastic in Easthorpe, done properly
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it. If you have damp patches traced to an open external joint and brick movement joints where the sealant has split, we can put it right.
Around Easthorpe, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
A 12-month guarantee comes with the work, just as it does everywhere we cover.

- Place
- Easthorpe (CO5)
- Wider area
- Essex
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Render joints
Rendered walls have joints at beads, openings and changes of material. We reseal them with a flexible exterior sealant that suits the render colour.
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.
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Letting agents and landlords in Easthorpe can book us as well as householders. Resealing between tenancies keeps a property looking cared for.
Walls and rooflines in Easthorpe
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Layer Marney Tower (about 2.7 miles south) nearby, there’s older building stock in the area around Easthorpe as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
For landlords with property near Marks Tey station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Easthorpe is about 6 miles west of Colchester, in Essex. We provide external mastic to homes and businesses in Easthorpe and the surrounding area. Our area takes in 644 places across Essex, from the larger towns to small villages. We also work in Chelmsford, about 15 miles from Easthorpe.
Jobs for external mastic in CO5 works the same way as everywhere else we cover. If you’re just outside Easthorpe, we cover Mulberry Green (1 mile north-east), Marks Tey (1 mile north), Little Tey (2 miles north-west), Copford (2 miles north-east) and Messing (2 miles south-west). Within a short drive, we also cover Colchester (6 miles east), Chelmsford (15 miles south-west), Braintree (9 miles west), Maldon (10 miles south-west), Witham (7 miles south-west) and Camulodunum (4 miles east).
What’s near Easthorpe
We work in homes and buildings around House Without A Name Public House. The closest station to Easthorpe is Marks Tey station, roughly 1.5 miles north of the centre. Nearby you will also find Anchor Press Museum (3.3 miles south) and Birch Castle (2.2 miles south-east). The countryside around Easthorpe includes Iron Latch.
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
A careful DIYer can reseal a simple joint, 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.
What we do, step by step
At the end, we look at the finished work together. The work normally takes anything from a few hours to several days, depending on the building, depending on how much there is to do. Somewhere like Easthorpe 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.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- 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.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
How to prepare
- For business premises, tell us about site rules or sign-in
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
Getting a quote
For external mastic in Easthorpe, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
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Towns and villages near Easthorpe
Also in Easthorpe
Why it’s worth doing now in Easthorpe
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. Too stiff a sealant can pull at the edges and break them. In a small place like Easthorpe, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Why Easthorpe clients choose us
- Rated 4.9 stars on Google
- Arbo and Everbuild products
- Approved under the ARBOMaster scheme
- Over 20 years’ experience
Take a look at what affects the cost or customer reviews.
Do you need external mastic in Easthorpe?
Some movement joints have been pointed up with mortar by mistake. The joint can’t move, so the wall cracks somewhere else instead.
Most people get in touch after spotting one of these:
- Plants rooting in failed movement joints
- Movement joints with cracked, split or missing sealant
- Rain getting behind render or cladding at a joint
- Old sealant gone brittle and cracked
Homes close to Church of St Mary include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before you book
- Which colour the sealant will be
- What the quote includes, VAT included or not
- Whether the sealant suits the joint
- Are they insured?
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Check external joints each spring
- Act on the first splits you see
- Keep water from gutters off the wall
- Leave the joints unpainted unless we have said otherwise
Do not paint over the new sealant unless we have said the product is paintable. Paint can crack on a flexible 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.
Easthorpe: your questions answered
Is Easthorpe in your area for external mastic?
Yes, Easthorpe is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear quote.
Can you help a landlord with a rental near Marks Tey station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
When will the joints need doing again?
It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Every job carries our one-year guarantee.
What is a movement joint?
Walls move with heat, cold and moisture, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.
What does external mastic cost?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before we start.
Will the new joint stand out?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We choose the closest to your brick or render so it does not stand out.
Do the sealants smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Do you use backing rod?
Backing rod goes into deeper joints as a matter of course. It controls the depth and stops the sealant bonding to the back, so the joint can move.
