Essex · England
External Mastic in Wivenhoe
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Wivenhoe. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Sealant that has lost its bond to the brick or render
- Plants rooting in failed movement joints
- Hard, crazed mastic that has stopped moving
About our external mastic in Wivenhoe
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing, and we don’t skip that step. Common call-outs are for failed seals between different materials and joints where the bead has come unstuck, on concrete & block, façade panels and brickwork movement joints.
Around Wivenhoe, garages, outbuildings and extensions all add to the joints on the outside of a home. Gutter ends, garage door frames and the joints where an extension meets the house are typical spots for leaks.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Place
- Wivenhoe (CO7)
- Region
- Essex
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Outside joints around Wivenhoe
Wivenhoe is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around The Church of St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Managing a site like Millfields Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Wivenhoe is about 3 miles south-east of Colchester, in Essex. Anywhere in CO7, our applicators can take on external mastic. We cover 644 towns and villages across Essex. Our Chelmsford page covers work nearby.
Jobs for external mastic in CO7 is quoted and booked the same way as anywhere else. If you need external mastic at a property on High Street, Station Road and Ernest Road or a nearby road, our applicators can take on the job. Wivenhoe sits on or near the B1028. Neighbouring places we cover for external mastic include Wivenhoe Quay (1 mile south), Wivenhoe Cross (1 mile north), Rowhedge (1 mile south-west), East Donyland (1 mile south-west) and Elmstead (1 mile north-east). Further out, we also cover Colchester (3 miles north-west), Clacton-on-Sea (9 miles south-east), Maldon (15 miles south-west), Witham (15 miles west), Harwich (14 miles east) and Camulodunum (4 miles west).
What’s near Wivenhoe
We work in homes and buildings around Colchester Academy, The Greyhound Public House and Colne Local Nature Reserve, among other places. There’s a railway station in Wivenhoe itself: Wivenhoe station. Nearby you will also find Essex County Hospital (3.5 miles north-west) and Colchester Castle (3.2 miles north-west). The countryside around Wivenhoe includes Cockaynes Wood.
What we cannot put right
In fairness, there are a few things sealant won’t fix:
- Failed render or damaged cladding panels
- Cracks in the bricks or render themselves, away from the joints
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly before you book.
What we seal
- Façade panels
- Concrete & block
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
- Brickwork movement joints
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
How we quote for external mastic
For a quick quote, just ask. What matters most is:
- Whether the work is at height
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- How much there is to do
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- How we’d reach the joints
- If someone has resealed it before
- Photos by email, if that’s easy
- The address or postcode of the job
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
When to call us in Wivenhoe
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. The joint can’t move, so the wall cracks somewhere else instead.
Any of these means the joints need attention:
- Old sealant gone brittle and cracked
- Rigid filler in a joint that should flex
- Damp patches traced to an open external joint
- Movement joints with cracked, split or missing sealant
Rented homes near Wivenhoe station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Questions to ask before you book
- Is the old sealant removed completely?
- What product goes in the joint
- Which colour the sealant will be
- What preparation is included
Leave it or put it right?
The longer a joint stays open, the more water the wall takes in. In cold weather, frost can damage wet brick and render, so the problem grows beyond the joint itself. In a smaller place like Wivenhoe, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and send you a clear quote before we start.
Why us?
- Neat joints and a tidy finish
- Quality sealants from Arbo and Everbuild
- 4.9 on Google from 180+ five-star reviews
- Old sealant always removed completely
Read what affects the cost and customer reviews.
The process
Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a handful of joints, longer for a whole elevation. In a smaller place like Wivenhoe, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- 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
- Tell us about any water getting in
- Try not to wet indoor joints just before the visit
- Plan for the work area to be out of bounds to pets and children
How to get a quote
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand, and we will take it from there.
Read more
Landlords, agents and businesses in Wivenhoe
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
We work for landlords and agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Nearby places to Wivenhoe
What else we do in Wivenhoe
Wivenhoe: your questions answered
I let a flat near Wivenhoe station. Can you help?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Does the coastal weather in Wivenhoe affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Where do you work from?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Are you insured?
Yes. We’re fully insured for domestic and commercial work.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
What colours does the sealant come in?
The sealant colour is picked to suit the wall. Exterior sealants come in a good range of colours.
How much does external mastic cost in Wivenhoe?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.