Essex · England
External Mastic in Great Maplestead
Professional external mastic in and around Great Maplestead, with every bit of old sealant taken out first.
- Sealant that has lost its bond to the brick or render
- Panel joints letting water in
- Joints with sealant missing in places
How we quote for external mastic
Jobs vary more than people expect. What affects the quote:
- Mould in or behind the old joints
- The type of sealant required
- How many areas need sealing
- When we can work, for business premises
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
When you contact us, these details help:
- The type of property
- Access, such as stairs, a lift or height
- Whether it has been sealed before
- The address or postcode of the job
If you’re in Great Maplestead and need external mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
External mastic in Great Maplestead
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. We work on brickwork movement joints, render & cladding joints and façade panels, and people most often call us about movement joints with cracked, split or missing sealant and joints pointed up with cement by mistake.
Around Great Maplestead, 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 one-year guarantee comes as standard, so you’re covered after we’ve gone.
- Place
- Great Maplestead (CO9)
- Wider area
- Essex
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
To keep the joints looking good and working properly:
- Look over the joints every year, ideally after winter
- Keep movement joints as flexible joints, not mortar
- Ask before painting over external sealant
- Act on the first splits you see
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
What external mastic looks like in Great Maplestead
With historic houses such as Hedingham Castle (about 1.6 miles north-west) nearby, there’s older building stock in the area around Great Maplestead as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you live in an older home near Church of St Giles, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Great Maplestead is about 3 miles north of Halstead, in Essex. We carry out external mastic for homes and businesses in Great Maplestead and the surrounding area, as part of our work across Essex. We cover 644 towns and villages across Essex, large and small. Our Chelmsford page covers work nearby.
Our applicators cover all of CO9 for external mastic. If you need external mastic at a property on Monks Lodge Road and Church Street or anywhere close by, we can help. Nearby, we also carry out external mastic in Little Maplestead (1 mile east), Wickham St Paul (2 miles north-east), Halstead (3 miles south), Pebmarsh (3 miles east) and Colne Engaine (4 miles south-east). Further out, we also cover Colchester (13 miles south-east), Braintree (7 miles south-west), Witham (12 miles south), Camulodunum (12 miles south-east), Great Dunmow (14 miles south-west) and Greenstead (14 miles south-east).
Landmarks near Great Maplestead
We work in homes and buildings around Hedingham School and Sixth Form, among other places. Nearby you’ll also find Halstead Hospital (2.2 miles south) and Hedingham Castle (1.6 miles north-west). Open spaces near Great Maplestead include Belcher's and Broadfield Woods.
Nearby places to Great Maplestead
What else we do in Great Maplestead
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
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.
For landlords and businesses
If you manage several properties in or around Great Maplestead, several properties can be quoted together. Send us the addresses and the work at each.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
Why deal with it now?
Running new sealant over the old bead rarely lasts. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. Around Great Maplestead, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why Great Maplestead customers choose us
- Colour picked to suit the job
- Full insurance on every job
- 4.9 on Google from 180+ five-star reviews
- Over 20 years’ experience
Read our cost guide or customer reviews.
What happens on the day
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes anything from a few hours to several days, depending on the building. For a village or hamlet like Great Maplestead, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Keep children and pets away from the work area
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
Advice
Do you need external mastic in Great Maplestead?
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.
People generally contact us after spotting one of these:
- Damp patches traced to an open external joint
- Sealant pulling away from one side of the joint
- Joints pointed up with cement by mistake
- Weathered mastic that no longer stretches
For site and facilities teams at buildings such as St Giles' Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Comparing quotes
- Are they insured?
- Is VAT in the price?
- What guarantee comes with the work
- How hidden problems are handled
Your questions about external mastic in Great Maplestead
Is there a guarantee on external mastic in Great Maplestead?
All our work, in Great Maplestead and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Do you cover Great Maplestead for external mastic?
Yes, Great Maplestead is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear price.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Where do you work from?
Mr Mastic is based in Crawley. We cover Great Maplestead and the rest of Essex.
Can you match the colour of my brickwork?
We choose a sealant colour to suit the brick, stone or render so the joint blends in. Exterior sealants come in a good range of colours.
What’s an expansion joint in brickwork?
It’s a deliberate gap that lets the wall expand and contract without cracking. It’s sealed with a flexible sealant, not mortar.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Can you reach joints on upper floors?
That depends on the building and the joints. We work on joints that can be reached safely. Tell us about the building and we will confirm what access is needed.