Greater London · England
External Mastic in Enfield
Professional external mastic in and around Enfield, with old sealant always removed completely and a 12-month guarantee.
- Cracked joints where brick meets render or frames
- Plants rooting in failed movement joints
- Water getting into walls through failed joints
About our external mastic in Enfield
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We take the old material out and do it properly. We work on render & cladding joints, joints between brick and frames and façade panels, and people most often call us about weeds or debris growing in open joints and sealant pulling away from one side of the joint.
Outside work in London starts with access: side passages, upper floors and where to park. In Enfield, joints up high may need ladders or other access, which is worth talking through when you book.
All our work comes with a 12-month guarantee, wherever you are in Greater London.
- Where
- Enfield (EN1, EN2, N21)
- Region
- Greater London
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the quote in Enfield
Every job gets its own quote. These are the things that affect it:
- The number of rooms or windows
- How much there is to do
- The type of sealant required
- When we can work, for business premises
Doing several joints on one visit is generally more efficient than separate visits. We will give you a clear price for the lot.
Helping us quote
To help us quote quickly, let us know:
- The type of property
- The problem you’ve noticed
- If someone has resealed it before
- The rough size of the job
Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or send us an email and describe the job and send photos if you have them.
Common questions in Enfield
Do you work for landlords with property near Enfield Town station?
Yes. We work for landlords and letting agents as well as householders. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Is Enfield in your area for external mastic?
Yes. We work across London and the South East, and Enfield is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear price.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint.
When will the joints need doing again?
It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Every job carries our one-year guarantee.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Do you seal joints where cladding meets other materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. We pick a colour that works with both materials.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
How long does external mastic take?
Typically it takes anything from a few hours to several days, depending on the building. Larger jobs naturally take longer.
Surface by surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Copings and trims
Copings expand and contract through the day, so a flexible sealant suits them best in all weathers.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Check external joints each spring
- Keep movement joints as flexible joints, not mortar
- Deal with leaking gutters that soak the joints below
- Have failed joints looked at early
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
Why it’s worth doing now in Enfield
Water gets in through a failed movement joint. Dealing with it early keeps the repair to the joint, rather than the wall around it. In a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What you get with us
- 180+ five-star Google reviews
- Anti-fungal silicone where joints get wet
- Colour agreed with you before any work starts
- Over 20 years’ experience
Towns and villages near Enfield
What else we do in Enfield
What sealant work can’t fix
To be straight with you, some problems need a different trade:
- Render that is blown, hollow or coming away
- Cutting new joints into brickwork, which is building work rather than sealant work
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Façade panels
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
The process
Before we leave, we go over the finished joints with you. The work normally takes a few hours for a handful of joints, longer for a whole elevation, depending on how much there is to do. In Enfield, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Let us know if you’ve seen damp or leaks
- Mention any tricky access
- Clear items away from the joints we’re working on
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or drop us an email.
Advice
What external mastic looks like in Enfield
In terraces and conversions, gutters and walls are often shared with the neighbours, so it’s worth agreeing who is responsible before work starts. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Enfield Town station, split movement joints are easy to miss on a rental until damp shows inside. Managing a site like Enfield Grammar School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. As a London address, Enfield can be tricky for parking: let us know about parking bays, permits or a driveway.
Enfield is about 9 miles north of St Pancras, in Greater London. Every kind of property in Enfield is covered for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. We cover 764 towns and villages across Greater London. For nearby work, see our London page (11 miles or so).
All of EN1, EN2 and N21 is covered for external mastic, from the main roads to the quietest streets. External mastic is available to properties on Lea Road, Farr Road and Cecil Road. Enfield sits on or near the A110, which makes travel easy. Close by, we work in Bush Hill Park (1 mile south-east), Bush Hill (1 mile south), Enfield Chase (1 mile west), Gordon Hill (1 mile north) and Forty Hill (1 mile north-east). Within a short drive, we also cover London (11 miles south), City of Westminster (10 miles south), Marylebone (10 miles south), Kensington (12 miles south-west), St Pancras (9 miles south) and Shoreditch (9 miles south).
Local landmarks in Enfield
In Enfield, that means homes and buildings near Kings Head pub, St Andrew's CofE Primary School and Enfield Town Park, among other places. There’s a railway station in Enfield itself: Enfield Town station. A little further out are Museum of Enfield (less than half a mile south) and St Michaels Hospital (0.7 miles north). For a walk, there’s Bowyer's Water and Pole Hill.
Landlord and commercial work in Enfield
We also work for property managers and facilities teams in Enfield and across Greater London. We can quote a run of properties together, and we’re fully insured for the work.
For anyone letting property in or around Enfield, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.