East Sussex · England
External Mastic in Maynard's Green
External mastic in Maynard's Green from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Rigid filler in a joint that should flex
- Joints where the bead has come unstuck
- Joints with sealant missing in places
How we handle external mastic in Maynard's Green
For buildings in Maynard's Green, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean joint faces and the right depth. Common call-outs are for movement joints filled with mortar instead of sealant and movement joints with cracked, split or missing sealant, across copings & trims, façade panels and joints between brick and frames.
External sealant needs dry, clean surfaces, so work around Maynard's Green is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
Big or small, you get the same 12-month guarantee.
- Place
- Maynard's Green (TN21)
- Wider area
- East Sussex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026

For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
We work for letting agents and landlords as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
What happens if it’s left?
Water gets in through a failed movement joint, behind render and cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. Where a wall is exposed, as many are in small places like Maynard's Green, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts.
Why us?
- Domestic, commercial and hotel work
- Tidy, careful work
- An ARBOMaster approved applicator
- You choose the colour before work begins
Take a look at our cost guide or our reviews.
Towns and villages near Maynard's Green
Other services in Maynard's Green
Do you need external mastic in Maynard's Green?
Many joints fail because they were sealed too deep or with nothing behind them. If the sealant sticks to the back as well as the sides, it can’t stretch and tears as soon as the joint widens.
The most common problems we see are:
- Rigid filler in a joint that should flex
- Rain getting behind render or cladding at a joint
- Panel joints letting water in
- Joints with sealant missing in places
If you look after a building such as Maynards Green Community Primary School, its movement joints, gutters and trims need looking after like any other building’s.
What to look for in a quote
- Whether the sealant suits the joint
- How the joint is cleaned and prepared
- Whether they’re fully insured
- Is VAT in the price?
Outside joints around Maynard's Green
Historic houses like Horselunges Manor (about 4.2 miles south) are a reminder that the area around Maynard's Green 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. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Christ Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Maynard's Green is about 6 miles north of Hailsham, in East Sussex. Maynard's Green gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across East Sussex, we cover 289 places, and Maynard's Green is one of them. Our Brighton page covers work nearby, about 18 miles away.
Every address in TN21 is covered for external mastic. Streets in the area include West Street Lane, Tubwell Lane and Sicklehatch Lane, and we cover them all. Being close to the B2203, Maynard's Green is simple for us to get to. If you are just outside Maynard's Green, we cover Sandy Cross (1 mile north), Horam (1 mile south), Vines Cross (1 mile south-east), Heathfield (1 mile north) and Warbleton (1 mile east). Within a short drive, we also cover Eastbourne (11 miles south), Hastings (15 miles east), Bexhill-on-Sea (12 miles south-east), Seaford (13 miles south-west), Lewes (12 miles south-west) and Hailsham (6 miles south).
Around Maynard's Green
We work in homes and buildings around Heathfield Community College and Runt-in-Tun pub, among other places. Other landmarks nearby include Old Castle (4.5 miles east) and Sussex Farm Museum (1 mile south). Not far away are Selwyns Wood.
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes anything from a few hours to several days, depending on the building, including the tidy-up. In a small place like Maynard's Green, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
How to get 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’ll talk you through the work.
Advice
When something else is needed
Sealant is not the answer to every problem, and we will tell you before any work starts. Sealant won’t put right:
- Failed render or damaged cladding panels
- Cracks in the bricks or render themselves, away from the joints
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before you book.
What we seal
- Brickwork movement joints
- Joints between brick and frames
- Concrete & block
- Façade panels
- Copings & trims
- Render & cladding joints
Questions from Maynard's Green
What guarantee comes with external mastic in Maynard's Green?
All our work, in Maynard's Green and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Will you come out to Maynard's Green?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. We’ll talk through colour options before any work starts.
What does external mastic cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before any work starts.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Do you work for landlords and businesses?
Yes. As well as householders, we work for landlords, agents, businesses and hotels.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
What do you need from me for a quote?
A short description and the location, with pictures by email if possible. If we need more, we’ll ask.
What affects the quote in Maynard's Green
Your quote is based on your job. We look at:
- The number of rooms or windows
- The product the joint needs
- Any working-time requirements on site
- Whether the work is at height
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- The address or postcode of the job
- If someone has resealed it before
- The problem you’ve noticed
- How many joints, rooms or windows are involved
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or drop us an email.
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Make sure movement joints aren’t pointed over
- Fix overflowing gutters above sealed joints
- Don’t let climbing plants root in the sealant
- Have failed joints looked at early
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Once a joint can’t move, the wall finds another way, usually as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
