Greater London · England
External Mastic in Ardleigh Green
External mastic across Ardleigh Green and nearby, with old sealant always removed completely and a 12-month guarantee.
- Sealant pulling away from one side of the joint
- Cracked joints where brick meets render or frames
- Water getting into walls through failed joints
Should I try it myself first?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
External mastic in Ardleigh Green, done properly
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. If you are dealing with damp patches traced to an open external joint and brick movement joints where the sealant has split, we can help, whatever the surface.
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.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Ardleigh Green (RM2, RM11, RM3)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Outside joints around Ardleigh Green
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Hare Hall (about 0.3 miles north-west) nearby, there’s older building stock in the area around Ardleigh Green as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Rented homes near Gidea Park station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. As a London address, Ardleigh Green can be tricky for parking: let us know about parking bays, permits or a driveway.
Ardleigh Green is about 2 miles east of Romford, in Greater London. If you need external mastic in Ardleigh Green, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We cover Greater London from our Crawley base, Ardleigh Green included. Ardleigh Green is one of 764 towns and villages in Greater London where we work for external mastic. You can also see our page for London, about 15 miles away.
We cover every part of the RM2, RM11 and RM3 postcode area for external mastic. Local streets include Ewan Road, Helen Road and Haynes Road. We also cover Gallows Corner (1 mile north), Emerson Park (1 mile south-east), Harold Wood (1 mile north-east), Heath Park (1 mile south-west) and Gidea Park (1 mile north-west). Larger places within reach include London (15 miles south-west), St Pancras (15 miles west), Shoreditch (13 miles west), Walthamstow (10 miles west), Hoxton (13 miles west) and Whitechapel (13 miles west).
Near you in Ardleigh Green
Typical jobs here are in homes near The Ship Public House, The Royal Liberty School and Haynes Park, among other places. For rail, the closest station is Gidea Park station, about 0.5 miles west of the centre. A little further out are Upminster Tithe Barn Museum of Nostalgia (2.1 miles south-east) and Harold Wood Hospital (0.8 miles north-east). Open spaces near Ardleigh Green include Hornchurch Cutting.
FAQs for Ardleigh Green
Can you help a landlord with a rental near Gidea Park station?
Yes. We work for landlords and letting agents as well as householders. You can call 0345 464 0079 or email us with the details for a clear quote.
Can parking be tricky for a visit in Ardleigh Green?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Ardleigh Green.
Are you insured?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
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.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
What is a movement joint?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking and needs a flexible seal, not mortar.
Signs you need external mastic in Ardleigh Green
If plants are growing out of a joint, the sealant has usually failed or was never there. Roots and dirt hold water against the wall and make things worse.
People normally contact us when they notice something like this:
- Sealant that has lost its bond to the brick or render
- Brick movement joints where the sealant has split
- Movement joints filled with mortar instead of sealant
- Cracked joints where brick meets render or frames
For an older house near a landmark such as All Saints, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Before booking anyone
- Who turns up on the day
- Which sealant they’ll use, and why
- What preparation is included
- Whether they seal over old material or remove it
Landlord and commercial work in Ardleigh Green
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
For anyone letting property in or around Ardleigh Green, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
The process
There is not much for you to do on the day. 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. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Ardleigh Green. It helps if you can point us to a visitor permit or a bay close to the door.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Clear the area around the work
- Tell us if parking is tricky
- Let us know if you’ve seen damp or leaks
How to get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
Read more
Leave it or put it right?
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. In a flat in Ardleigh Green, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.
Why Ardleigh Green clients choose us
- You choose the colour before work begins
- Every job guaranteed for a year
- Old sealant always removed completely
- Full insurance on every job
Take a look at how sealant jobs are priced and customer reviews.
Surface by surface
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so its sealant has to stay flexible.
Also near Ardleigh Green
Also in Ardleigh Green
Aftercare tips
Good habits help new joints last longer. A few tips:
- Keep movement joints as flexible joints, not mortar
- Keep water from gutters off the wall
- Clear growth from the base of walls and joints
- Act on the first splits you see
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick, all bigger jobs than a reseal.