Essex · England
Great Oakley External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Great Oakley and across Essex. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Rigid filler in a joint that should flex
- Failed sealant between panels on a façade
- Brick movement joints where the sealant has split
Common problems we fix in Great Oakley
Some movement joints have been pointed up with mortar, often by someone who didn’t know what it was for. The joint can’t move, so the wall cracks somewhere else instead.
Most people get in touch after spotting one of these:
- Movement joints with cracked, split or missing sealant
- Plants rooting in failed movement joints
- Failed sealant between panels on a façade
- Rigid filler in a joint that should flex
If you let a flat or house near Wrabness station, split movement joints are easy to miss on a rental until damp shows inside.
Before booking anyone
- Whether VAT is included
- How long to leave it before use
- Who does the work, and how experienced they are
- How the colour is chosen
How we handle external mastic in Great Oakley
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render. If you’re dealing with moss and dirt in joints with no sealant left and gaps where render, brick and frames meet, we can put it right, on concrete & block, copings & trims and render & cladding joints alike.
In a village or hamlet like Great Oakley, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
We stand behind the work with a 12-month guarantee.
- Where
- Great Oakley (CO12)
- Wider area
- Essex
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to several days, depending on the building. Somewhere as small as Great Oakley, 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 parking rules near the property
- Mention if the joints have been sealed before
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Advice
For landlords and businesses
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Quotes for external mastic in Great Oakley
Your quote is based on your job. We look at:
- The type of sealant required
- How many areas need sealing
- How easy the joints are to reach
- The size of the job
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
Asking for a quote
To make quoting easier, please include:
- The problem you’ve noticed
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- How many joints, rooms or windows are involved
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved and send you a clear quote.
DIY sealant or a professional job?
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.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
FAQs for Great Oakley
Does the coastal weather in Great Oakley affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Can you help a landlord with a rental near Wrabness station?
Yes. We work for landlords and letting agents as well as householders. You can phone 0345 464 0079 or email us with the details for a clear quote.
Do I need to be at home?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Do you work in Great Oakley?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland, and that includes Great Oakley.
How much does external mastic cost in Great Oakley?
Size, access and the old material all affect the cost. Ask us for a quote and we will talk you through it.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
How do you reach high-level joints?
Each building is different. Send us photos and a rough idea of the height.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Walls and rooflines in Great Oakley
Great Oakley is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on movement joints and outside wall joints, especially on the side facing the sea. Historic houses like Thorpe Hall (about 3.5 miles south) are a reminder that the area around Great Oakley has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
In the older streets around Parish Church of All Saints, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Great Oakley is about 4 miles south-west of Harwich, in Essex. Homes, rented property, offices and hotels in Great Oakley can book us for external mastic. The work is guaranteed for a year. Great Oakley is one of 644 places in Essex we cover. Our Chelmsford page covers work nearby.
Jobs for external mastic in CO12 is quoted and booked the same way as anywhere else. External mastic is available to properties on High Street, Orchard Close and Hamford Drive. If you’re just outside Great Oakley, we cover Wix Green (1 mile north-west), Wix (2 miles west), Wrabness (3 miles north), Bradfield (4 miles north-west) and Bradfield Heath (4 miles north-west). Larger places within reach include Colchester (12 miles west), Clacton-on-Sea (7 miles south), Harwich (4 miles north-east), Camulodunum (13 miles west), Greenstead (11 miles west) and Wivenhoe (10 miles west).
Near you in Great Oakley
Locally, jobs take us to homes and businesses close to The Maybush pub and the streets around them. The closest station to Great Oakley is Wrabness station, about 2.6 miles north of the centre. For a walk, there’s Stour Estuary RSPB reserve.
Looking after it afterwards
So the new joints stay in good condition:
- Clear growth from the base of walls and joints
- Check the sealant is paintable before painting near it
- Have failed joints looked at early
- Keep movement joints as flexible joints, not mortar
Have a quick look at the joints each spring. Splits, gaps at the edges or plants in the joint are early warning signs.
An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.
What happens if it’s left?
The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost around the joint, so the damage spreads beyond the joint. Older cottages and farmhouses around Great Oakley can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why Great Oakley clients choose us
- 20+ years of sealant experience
- Full insurance on every job
- Anti-fungal silicone where joints get wet
- White, clear, grey or coloured to suit, where the product allows
See what affects the cost and customer reviews.