Expansion and movement joint sealing in Arnos Grove, Greater London
Expansion and movement joint sealing in walls, decks and floors in Arnos Grove. CHAS accredited and fully insured, with a 12-month guarantee.
- Leaks through car park deck joints onto the level below
- Sealant pulling off the joint face
- Rain penetration at brick or block movement joints
Expansion joint sealing near Arnos Grove
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Expansion joint sealing in Arnos Grove: the local picture
In London, decks, bays and service yards usually have to keep running, so the work is broken into short sections agreed with the building manager. The 3 miles around Arnos Grove take in at least three named trading estates, business parks or retail parks. Floors, loading bays and yards on sites like these are where floor and movement joints work hardest.
For an estate such as Priory Hospital, which lies north of Arnos Grove, the joints in ramps, decks and long building elevations all need attention over time. For estates staff at a university like American University in London, 3.9 miles to the south of Arnos Grove, building and paving joints are part of the planned maintenance list.
Arnos Grove is about 3 miles north-east of Finchley, in Greater London. We cover Arnos Grove and the rest of Greater London, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Across Greater London, 764 places are covered, Arnos Grove among them. For work in that direction, see our London page, about 8 miles away.
We cover the N11, N14 and N13 postcode districts for movement joints. Streets here include Oak Lane, High Road and York Road. You’ll find Arnos Grove on or near the A109 and A1004, so getting applicators and materials to site is simple. If your building is just outside Arnos Grove, we cover New Southgate (1 mile west), Bounds Green (1 mile south), Southgate (1 mile north), Palmers Green (1 mile east) and Oakthorpe Park (1 mile east). Nearby towns on our patch include London (8 miles south), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (9 miles south), St Pancras (6 miles south) and Shoreditch (7 miles south).
Local landmarks in Arnos Grove
Around Arnos Grove, our work takes us to commercial buildings near The Ranelagh pub, Broomfield School and Broomfield Park and the streets around them. Arnos Grove’s nearest station is New Southgate station, about 0.6 miles west of the centre. Well-known places in the area include Broomfield House Museum (0.5 miles east) and The Mall Wood Green (1.7 miles south-east). Not far away are Highgate Hill and Darland's Lake.
Expansion joint sealing in Arnos Grove, done properly
Width, depth and product all have to work together. Joint width must suit the movement and the movement class of the sealant. For wider joints, many sealant makers recommend a width-to-depth ratio, often around 2:1, and the bead is tooled so it grips the two faces alone. Site teams most often ask us about expansion joints filled with dirt and stones and water getting into the wall through a failed joint, across podiums and floor movement joints, precast concrete panel joints and brickwork movement joints. Looking for mastic applicators who cover Arnos Grove? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.
Most London buildings can’t shut a car park, loading bay or warehouse floor for long. Joints are done in sections, with bays coned off one after another, so the site keeps operating.
Our workmanship is guaranteed for 12 months. If our installation lets you down in that time, we return and fix it.
- Location
- Arnos Grove (N11, N14, N13)
- Region
- Greater London
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
Places near Arnos Grove
What else we do in Arnos Grove
Common problems we fix in Arnos Grove
On trafficked joints, wheels and salts do the damage. Wheel loads stress the sealant and the arrises. The product has to be suited to the traffic.
If one of these sounds familiar, it’s time for a closer look:
- Car park joints leaking onto vehicles below
- Debris jammed in movement joints
- Previous reseals laid over old sealant
- Spalled or broken joint edges in floors and decks
Another example is Friern Bridge Retail Park, which lies south-west of Arnos Grove, where floors and yards would be done in stages around the occupiers.
Questions to ask before you book
- Their pre-qualification and accreditations
- How joint depth will be controlled
- Whether primer will be used where the manufacturer specifies it
- Will RAMS and insurance details be available?
General trades versus a specialist
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Arnos Grove: questions and answers
Do you work in London buildings with loading restrictions?
Yes, most London buildings have access rules of some kind, and we plan around them. Say when the building is occupied and when it’s quiet, and we will plan accordingly. The ULEZ covers the whole of Greater London, which we allow for
Would you work within a site like Priory 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.
What if the joint edges are damaged?
Broken arrises have to be put right before resealing. A bead on a broken edge soon lets go.
What happens if old sealant might contain asbestos?
Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it.
Can you handle several sites?
Yes. Several buildings can share a single quote, and you deal with one contact throughout across South East England, Greater London and Scotland.
When is resealing likely to be due?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.
What we can’t put right
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:
- Concrete or masonry repairs along the arrises
- Movement on a scale no sealant is meant to absorb
- Waterproofing layers buried beneath the sealant
If in doubt, speak to us on 01277 525 020 or send photos by email and we’ll say what we think before you book.
Joints and surfaces we work on
- Cladding panel joints
- Blockwork control joints
- Car park decks and ramps
- Precast concrete panel joints
- Podiums and floor movement joints
- Brickwork movement joints
For managing agents and facilities managers
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Arnos Grove can form part of a wider programme across Greater London.
Why deal with it now?
A failed joint seal doesn’t mean the slab, panel or wall needs replacing. If the material either side is sound, a properly prepared reseal restores the joint. If the edges have broken up, we’ll tell you they need repairing first. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
Why clients in Arnos Grove choose us
- CHAS accredited contractor
- Fixed quotes based on photographs, drawings or a visit
- Failed material removed, not covered up
- A Constructionline member, so easy to vet
Take a look at how commercial sealant jobs are priced and our accreditations and insurance.
Diagnose, treat, sign off
Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. All of Greater London is in the ULEZ, and kerbside space in Arnos Grove can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.
- We look at the joints, their width and how they’ve failed.
- A fixed quote follows, naming the sealant and its movement class.
- Old sealant and filler are cut out and the joint faces cleaned back to sound material, flagging any broken edges that need repair before sealing.
- Closed-cell backing rod is set to depth, or bond-breaker tape in shallow joints.
- 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.
Getting the site ready
- Explain the parking and delivery arrangements
- Send any specification or drawings in advance
- Let us know about inductions and permits
Request a quote
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, ring 01277 525 020 or send photos by email.