Surrey · England
Mayes Green External Mastic
Professional external mastic in and around Mayes Green, with every bit of old sealant taken out first and a one-year guarantee.
- Movement joints with cracked, split or missing sealant
- Rigid filler in a joint that should flex
- Gaps where render, brick and frames meet
How we handle external mastic in Mayes Green
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. We work on joints between brick and frames, brickwork movement joints and concrete & block, and the jobs we see most are sealant pulling away from one side of the joint and joints with sealant missing in places.
Around Mayes Green, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in.
Your job is guaranteed for a year, as with all our work.
- Place
- Mayes Green (RH5)
- Region
- Surrey
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Your questions about external mastic in Mayes Green
Can you help a landlord with a rental near Ockley station?
Yes. We work for landlords and agents as well as householders. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Is Mayes Green within the area you cover?
Yes. Mayes Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you use backing rod?
That’s backing rod, a closed-cell foam. It stops the sealant going in too deep and bonding to three sides.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint.
Do you work at height?
It depends on the height and the site. Ground-floor joints are simple; for higher ones, send details and we will confirm the access.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
For landlords and businesses
If you manage several properties in or around Mayes Green, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Towns and villages near Mayes Green
Other services in Mayes Green
Different surfaces, different methods
Copings and trims
A failed coping joint lets water into the top of the wall. Sealing them early saves the wall below.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
When it is not the sealant
New sealant can’t fix everything, and we will tell you before we start. Sealant will not put right:
- Rising or penetrating damp from elsewhere in the wall
- Walls that need new movement joints cut into them
- Movement that’s more than a sealant joint can take
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
Where we work in Mayes Green
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Façade panels
When to call us in Mayes Green
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
Signs it’s time to call us include:
- Damp patches traced to an open external joint
- Hard, crazed mastic that has stopped moving
- Movement joints filled with mortar instead of sealant
- Panel joints letting water in
For landlords with property near Ockley station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- Whether you can choose the colour
- What happens if they find a problem under the old sealant
- Is VAT in the price?
- Is the old sealant removed completely?
What affects the quote in Mayes Green
Some jobs are bigger than they look, and some smaller. The main factors:
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
- When we can work, for business premises
- The number of rooms or windows
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What we need to know
What to tell us when you ask for a quote:
- The address or postcode of the job
- How many joints, rooms or windows are involved
- Pictures of the joints, sent by email
- If someone has resealed it before
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you’re ready, call 0345 464 0079 or drop us an email.
How the visit works
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Mayes Green needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
- Clear the area around the work
Get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work.
Related advice
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.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
What external mastic looks like in Mayes Green
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Church of St John the Baptist, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Mayes Green is about 6 miles north-west of Horsham, in Surrey. Our applicators cover external mastic for householders, landlords and businesses in Mayes Green and the surrounding area. We cover 395 towns and villages across Surrey. For nearby work, see our Crawley page, about 9 miles away.
Every address in RH5 is covered for external mastic. Close by, we work in Walliswood (1 mile south), Ewhurst Green (1 mile west), Ewhurst (2 miles west), Ellen's Green (2 miles south) and Pitland Street (3 miles north). Within a short drive, we also cover Guildford (10 miles north-west), Woking (14 miles north-west), Epsom (15 miles north-east), Horley (10 miles east), Redhill (12 miles north-east) and Reigate (11 miles north-east).
Near you in Mayes Green
In Mayes Green, that means homes and buildings near Wallis Wood and The Scarlett Arms Public House. The nearest railway station is Ockley station, about 2.9 miles east. Nearby you’ll also find Abinger Castle (4.2 miles north) and Horsham Hospital (6 miles south-east). Not far away are Leith Hill and Vann Lake.