Greater London · England
External & façade joints in Maypole, Greater London
We cover Maypole for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Failed sealant between panels on a façade
- Brick movement joints where the sealant has split
- Movement joints filled with mortar instead of sealant
External mastic in Maypole, done properly
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. Typical jobs include joints where the bead has come unstuck and old sealant gone brittle and cracked, across brickwork movement joints, concrete & block and joints between brick and frames.
Modern London flats rely on sealed movement joints and cladding joints. Older terraces have their own weak points: gutter joints, roofline trims and the joint where an extension meets the original wall, and both kinds of building are found across London.
A 12-month guarantee comes as standard, so you are covered after we’ve gone.
- Place
- Maypole (BR6)
- Wider area
- Greater London
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Do you need external mastic in Maypole?
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
Most people get in touch when they notice something like this:
- Damp patches traced to an open external joint
- Weeds or debris growing in open joints
- Cracked joints where brick meets render or frames
- Joints with sealant missing in places
If you look after a building such as Chelsfield Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before booking
- How the joint is cleaned and prepared
- What insurance they hold
- How much experience the applicator has
- How the colour is chosen
Nearby places to Maypole
Other services in Maypole
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Outside joints around Maypole
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 terraces and conversions, gutters and walls are often shared with the neighbours, so it’s worth agreeing who is responsible before work starts.
Homes close to Mission Chapel include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant. Maypole is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Maypole is about 3 miles south-east of Orpington, in Greater London. For external mastic in and around Maypole, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We’re based in Crawley and cover Greater London, Maypole included. Across Greater London, we cover 764 places, Maypole among them. There’s also a page for London, about 14 miles away.
Here we cover the BR6 postcode area for external mastic. If you need external mastic at a property on Jubilee Road, Hollybush Lane and Maypole Road or anywhere close by, we can help. We also cover the places around Maypole: Bopeep (1 mile south), Well Hill (1 mile east), Chelsfield (1 mile north-west), Badgers Mount (1 mile south) and Goddington (1 mile north-west). We also work in nearby towns such as London (14 miles north-west), Shoreditch (15 miles north-west), Whitechapel (14 miles north-west), Stockwell (14 miles north-west), Orpington (3 miles north-west) and Plaistow (13 miles north-west).
Local landmarks in Maypole
In Maypole, that means homes and buildings near Harris Academy Orpington, Hewitt's Chalk Bank and The Bo-Peep pub and the streets around them. For rail, the closest station is Knockholt station, roughly 0.7 miles south-west of the centre. A little further out are Lullingstone Castle (2.4 miles east) and Orpington Hospital (2 miles west). Open spaces near Maypole include The Warren and Summer Hill.
Maypole: your questions answered
Can you help a landlord with a rental near Knockholt station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can go on one quote. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Can you do external mastic in Maypole?
Yes. We work across London and the South East, and Maypole is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Do you work at height?
Each building is different. Tell us the height, the number of joints and what’s below them and we will confirm how they can be reached safely.
What is a movement joint?
Walls move with heat, cold and moisture, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.
Can a movement joint be filled with mortar?
No. A mortar-filled joint cannot move, so the wall cracks somewhere else instead. Use a flexible sealant with backing rod.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Maypole, along with the rest of our area.
How long does external mastic last?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away and have them redone then.
What happens on the day
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes a few hours to a few days, depending on the length of joint and the access. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Maypole. It helps if you can point us to a visitor permit or a bay close to the door.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Where the joints are inside, avoid wetting them before we arrive
- Mention if the joints have been sealed before
How to get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Advice
Different surfaces, different methods
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. A primer goes on where the product requires one.
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two.
Work for landlords, hotels and businesses
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
Quotes for external mastic in Maypole
The price is agreed before any work begins. It takes into account:
- How many areas need sealing
- Whether old sealant or filler has to be cut out
- How much there is to do
- Working hours on commercial sites
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What to tell us for a quote
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- The rough size of the job
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Why act early in Maypole
Done well, a resealed joint is a neat, straight line that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Maypole, the repair is bigger than a sealant job.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Why book with us
- A 12-month guarantee on all work
- Anti-fungal sanitary silicone in wet areas
- Full insurance on every job
- Arbo and Everbuild products
Take a look at how sealant jobs are priced or customer reviews.