Greater London · England
External & façade joints in Goddington, Greater London
External mastic for Goddington, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Brick movement joints where the sealant has split
- Weathered mastic that no longer stretches
- Cracked joints where brick meets render or frames
The process
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a handful of joints, longer for a whole elevation, and the area is left clean. In Goddington, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- Both sides are cleaned back to sound material and primed if needed.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
How to prepare
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
Get a quote
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Related advice
About our external mastic in Goddington
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 failed sealant between panels on a façade, across façade panels, brickwork movement joints and joints between brick and frames.
Outside work in London starts with access: side passages, upper floors and where to park. For a home in Goddington, tell us how high the joints are and how to reach the back of the building.
There’s a 12-month guarantee on every job.
- Place
- Goddington (BR6, BR5)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Goddington
Other services in Goddington
Leave it or put it right?
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. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in Goddington.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Why Goddington customers choose us
- You choose the colour before work begins
- A 12-month guarantee on all work
- A sealant colour to suit the surroundings
- 4.9 on Google from 180+ five-star reviews
Take a look at our cost guide and our reviews.
What the job involves on each surface
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
Concrete and blockwork
The face of concrete or block is often dusty, so preparation is key. We prime where the sealant needs it before the bead.
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Check the sealant is paintable before painting near it
- Show decorators and builders where the movement joints are
- Keep movement joints as flexible joints, not mortar
- Clear growth from the base of walls and joints
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established.
For landlords and businesses
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
When it isn’t the sealant
We’d rather tell you now than do work that will not last, so these are the limits:
- Movement that is more than a sealant joint can take
- Render that is blown, hollow or coming away
- Cracks in the bricks or render themselves, away from the joints
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.
What we seal
- Brickwork movement joints
- Copings & trims
- Façade panels
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
Goddington buildings and the weather
In terraces and conversions, gutters and walls are often shared with the neighbours, so it’s worth agreeing who is responsible before work starts. Historic houses like Down House (about 3.5 miles south-west) are a reminder that the area around Goddington has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Goddington is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Rented homes near Chelsfield station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Goddington is about 1 mile south of Orpington, in Greater London. Jobs in Goddington get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Goddington is one of 764 towns and villages in Greater London where we work for external mastic. Our London page covers work nearby (13 miles or so).
Every address in BR6 and BR5 is within our area for external mastic. Whether your property is on Eton Road, Stowe Road and Court Road or a nearby road, our applicators can take on the job. Close by, we work in Chelsfield (1 mile south-east), Orpington (1 mile north), Derry Downs (1 mile north), Maypole (1 mile south-east) and Bopeep (2 miles south-east). We also work in nearby towns such as London (13 miles north-west), City of Westminster (15 miles north-west), Marylebone (15 miles north-west), St Pancras (15 miles north-west), Shoreditch (14 miles north-west) and Hoxton (14 miles north-west).
Around Goddington
We work in homes and buildings around Five Bells Public House, St Olave's and St Saviour's Grammar School and Hewitt's Chalk Bank, among other places. The nearest railway station is Chelsfield station, roughly 0.7 miles south of the centre. A little further out are Lullingstone Castle (3.7 miles east) and London Borough of Bromley Museum (0.9 miles north). For a walk, there’s The Warren and Summer Hill.
Common questions in Goddington
I let a flat near Chelsfield station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
Can parking be tricky for a visit in Goddington?
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.
Can you seal over the old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Why is there a gap in my brick wall?
A vertical gap in a long brick wall is usually a movement joint. It gives the wall room to move.
When will the joints need doing again?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges and have them redone then.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we are using and why.
Do you need external mastic in Goddington?
Some movement joints have been pointed up with mortar. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
These are the problems we are asked about most:
- Failed sealant between panels on a façade
- Sealant that has lost its bond to the brick or render
- Rigid filler in a joint that should flex
- Brick movement joints where the sealant has split
Schools such as The Highway Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before you book
- What the cure time is
- What preparation is included
- Whether VAT is included
- Is the old sealant removed completely?