Greater London · England
External Mastic in Gordon Hill
External mastic for Gordon Hill and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Failed sealant between panels on a façade
- Cracked joints where brick meets render or frames
- Moss and dirt in joints with no sealant left
External mastic in Gordon Hill
A movement joint is a deliberate break that lets a wall expand and contract. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. Typical jobs include failed seals between different materials and weathered mastic that no longer stretches, across façade panels, copings & trims and render & cladding joints.
Working on the outside of a London home means planning access: shared paths, upper floors and parking. For a home in Gordon Hill, tell us how high the joints are and how to reach the back of the building.
Your job is guaranteed for a year, as with all our work.
- Location
- Gordon Hill (EN2, EN1)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from a few hours to several days, depending on the building, and the area is left clean. In Gordon Hill, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- 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.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- Clear items away from the joints we’re working on
- Mention any leaks or damp you’ve noticed
- Tell us if parking is tricky
Getting a quote
Getting a quote is simple: let us know the job and the location. A few pictures by email make the job easier to understand.
Advice
Places near Gordon Hill
More services for Gordon Hill
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Gordon Hill questions
Can parking be tricky for a visit in Gordon Hill?
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.
Is Gordon Hill in your area for external mastic?
Yes. Our work covers London and the South East, and Gordon Hill is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Can landlords and businesses book you?
Yes, regularly. Several properties can be quoted together, and between tenancies is a good time for the work.
Can you quote for more than one area?
Yes. Just list everything you need and we will quote it together.
How long before the joint can be used?
That depends on the sealant used, so follow the cure time we give you.
How long will you be here?
A typical job takes a few hours for a handful of joints, longer for a whole elevation, including the preparation. Your quote will say how long we expect yours to take.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
What information do you need?
A short description and the location, plus pictures if you have them. If we need more, we’ll ask.
What we’re called out for in Gordon Hill
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
The problems people usually mention when they call include:
- Joints with sealant missing in places
- Damp patches traced to an open external joint
- Failed seals between different materials
- Leaking joints around cladding and façade panels
In the older streets around St Michael & All Angels, an extension built onto an older house moves differently, and the joint between them takes the strain.
Before booking anyone
- When the joint can take water or movement
- What happens if they find a problem under the old sealant
- Is the old sealant removed completely?
- What the quote includes, VAT included or not
Quotes for external mastic in Gordon Hill
Every job gets its own quote. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- The amount of work
- How easy the joints are to reach
- Any working-time requirements on site
Doing several joints on one visit is generally more efficient than separate visits. We’ll give you a clear price for the lot.
What to tell us for a quote
To make quoting easier, let us know:
- How we’d reach the joints
- The address or postcode of the job
- If someone has resealed it before
- Roughly how big the job is
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
When something else is needed
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Walls that need new movement joints cut into them
- Damp that isn’t coming from the joint
- Movement that’s more than a sealant joint can take
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Gordon Hill
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Copings & trims
- Concrete & block
- Brickwork movement joints
External mastic in Gordon Hill: local notes
Historic houses like Forty Hall (about 0.9 miles north-east) are a reminder that the area around Gordon Hill 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as St Michael's CofE Primary School, its movement joints, gutters and trims need looking after like any other building’s. Letting a property close to Gordon Hill station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Gordon Hill is about 3 miles north of Edmonton, in Greater London. For external mastic in and around Gordon Hill, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover Greater London from our Crawley base, Gordon Hill included. Our Greater London coverage runs to 764 places, Gordon Hill among them. You can also see our page for London, about 11 miles away.
All of EN2 and EN1 is covered for external mastic. That includes homes and businesses on Lea Road, Farr Road and Manor Road and the roads around them. We also cover Clay Hill (1 mile north), Enfield Chase (1 mile south-west), Forty Hill (1 mile east), Enfield (1 mile south) and Crews Hill (1 mile north-west). We also work in nearby towns such as London (11 miles south), City of Westminster (11 miles south), Marylebone (10 miles south), Kensington (12 miles south-west), St Pancras (10 miles south) and Shoreditch (10 miles south).
Landmarks near Gordon Hill
Typical jobs here are in homes near Chace Community School, Russet House School and The Wonder pub. Gordon Hill has its own railway station: Gordon Hill station. Well-known places in the area include Edmonton Green Shopping Centre (3.1 miles south-east) and St Michaels Hospital (under half a mile south-east). Open spaces near Gordon Hill include Pole Hill and Bowyer's Water.
Different surfaces, different methods
Render joints
The face of render can be soft, so a low-modulus sealant is kinder to the joint edges. Priming is done where the sealant calls for it.
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant.
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.