Expansion Joint Sealing in New Southgate
Expansion and movement joint sealing in walls, decks and floors throughout New Southgate and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.
- Car park joints leaking onto vehicles below
- Expansion joints filled with dirt and stones
- Spalled or broken joint edges in floors and decks
Expansion joint sealing in New Southgate
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Do you need expansion joint sealing in New Southgate?
The edges of the material can fail rather than the sealant. Weak or crumbling concrete, brick or render edges give the sealant nothing sound to grip, so we tell you if the edges need repairing first.
It’s worth sending us details if you spot any of the following:
- Water getting into the wall through a failed joint
- Expansion joints filled with dirt and stones
- Leaks through car park deck joints onto the level below
- Weathered movement joint sealant that no longer flexes
At a retail site such as Friern Bridge Retail Park, which lies south of New Southgate, joints in car parks, service yards and sales floors carry cars, cages and trolleys every day.
What to look for in a quote
- Whether old or failed sealant will be cut out, not overlaid
- Can the work be phased to keep areas open?
- How they handle RAMS and site documents
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
About our expansion joint sealing in New Southgate
Joint design counts for as much as the sealant itself. Joint width must suit the movement and the movement class of the sealant while depth is limited by backing rod or, in shallow joints, a bond-breaker. For wider joints, the width-to-depth ratio is often around 2:1, as the manufacturer advises and the bead bonds to the sides, never the back. We work on car park decks and ramps, blockwork control joints and cladding panel joints, and the failures we are asked to look at most are damp inside where a wall movement joint has failed and previous reseals laid over old sealant. Whoever orders the work in New Southgate, the brief is normally the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Most London buildings can’t shut a car park, loading bay or warehouse floor for long. We work through joints a section at a time, closing small areas in turn.
Every job is signed off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.
- Place
- New Southgate (N11, N10, N14)
- Region
- Greater London
- Cover
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Why act early in New Southgate
Doing joint resealing alongside other planned works can save on access. But joints already letting water in shouldn’t wait for a programme, as damage continues meanwhile. We can split the scope into urgent and planned. Getting scaffold, permits or access booked in New Southgate takes effort, so while access is arranged it pays to renew all failing joints, not just the worst.
The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site requirements come into it too.
Why clients in New Southgate choose us
- Health and safety: CHAS accredited
- Over 20 years of commercial sealing
- Matching to RAL references, product permitting
- 12 months’ guarantee on every job
Surface by surface
Brickwork and blockwork joints
Long brick and block elevations have movement joints at intervals. We use a sealant rated for the movement, usually low-modulus laid over backing rod at the correct depth.
Car park decks and ramps
Failed deck joints often show as leaks on the level below. We strip the old seal, prepare the edges and seal again flagging broken edges along the way.
From enquiry to sign-off
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. Most London premises stay occupied while we are on site, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.
- First, the joints are inspected for width, movement and the type of failure.
- Next, we fix a price and confirm the sealant we propose for the movement.
- We strip out the old seal and prepare the faces, and we tell you if any edges need repairing first.
- Backing rod goes in at the right depth, or bond-breaker tape where the joint is shallow.
- Where the maker calls for primer, it’s applied first, then the bead goes in and is tooled to a concave finish.
- We check every joint before sign-off, and the work carries our 12-month guarantee.
Before we start on site
- Let building users know which areas are affected
- For older buildings, check the asbestos register before work
- Tell us your opening times and when work is allowed
Quotes
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or speak to us on 01277 525 020 or email us to discuss it first.
Read more
Quoting for work in New Southgate
Each job is priced on its own details. The main factors are:
- How much existing material needs removing
- Quantities, in metres or numbers
- Location, for remote and island sites
- Working within restricted access windows
What a job costs comes down to how many linear metres there are, how much old material needs removing and the access. Call for a quote when you’re ready.
What we need to price the job
The more we know, the firmer the quote. Helpful details to send:
- The postcode of the building
- How the joints are reached, and at what height
- Whether an asbestos survey exists
- Your programme or deadline
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
Questions we are asked in New Southgate
Can you take on a job at a hospital such as Finchley Memorial Hospital?
Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Do you cover business parks and estates near New Southgate, such as Friern Bridge Retail Park?
Yes. Estates, retail parks and business parks around New Southgate, Friern Bridge Retail Park among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Can you handle several sites?
Yes. Several buildings can share a single quote, and you deal with one contact throughout.
Can weather delay the job?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
Do the joint edges need to be sound before sealing?
Sealant needs sound faces to bond to, so broken or crumbling edges have to be repaired first. Where it’s visible beforehand, we will say so when we quote.
What’s the difference between an expansion joint and a movement joint?
The general name is movement joint, and expansion joint is one common type. In everyday use the two names are often swapped, and the sealing method is much the same.
Is it fine to apply new sealant on top of old?
No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
Also near New Southgate
Also in New Southgate
Site staff or a sealant specialist?
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
Expansion joint sealing in New Southgate: the local picture
At least three named trading, business or retail sites lie within about 3 miles of New Southgate. Floors, loading bays and yards on sites like these are where floor and movement joints work hardest. Few London car parks or loading bays can be taken out of use for more than a short spell, so we seal in sections and hand areas back as each cures.
A campus such as American University in London (to the south of New Southgate) has long runs of movement joint in its buildings, decks and paving. For a school such as St Paul's CofE Primary School N11, playground and building joints can be done in the holidays.
New Southgate is about 2 miles north-east of Finchley, in Greater London. Anywhere in N11, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. New Southgate is one of 764 places in Greater London on our list for movement joints. We also cover London, some 8 miles away.
Postcode districts covered here: N11, N10 and N14 for movement joints. Streets here include High Road, Orion Road and Atlas Road. Being close to the A1003 and A1110, New Southgate is easy to get to with materials and equipment. We also cover Friern Barnet (1 mile west), Arnos Grove (1 mile east), Bounds Green (1 mile south-east), Brunswick Park (1 mile north) and Southgate (1 mile north) for movement joints. Nearby towns on our patch include London (8 miles south), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (8 miles south), St Pancras (6 miles south) and Shoreditch (7 miles south-east).
Near you in New Southgate
Locally, jobs take us to sites close to Friern Barnet School, Ming-Ai and The Ranelagh pub. Also close by are O. R. Tambo Recreation Ground (0.9 miles south-east) and Francis Skaryna Belarusian Library and Museum (1.8 miles west). New Southgate has its own railway station: New Southgate station. A little further out are Grand Arcade (1.5 miles west) and Broomfield House Museum (1.1 miles east). The countryside around New Southgate includes Barfield Allotments Nature Park and Highgate Hill.