The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Expansion Joint Sealing in Staples Corner

Our CSCS-carded applicators take on expansion and movement joint sealing in walls, decks and floors in Staples Corner and the surrounding area. Send photos or drawings for a fixed quote.

  • Joints packed with grit and debris
  • Sealant peeling off one face of the joint
  • Torn sealant in brick or block movement joints
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Need expansion joint sealing in Staples Corner?

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Expansion joint sealing in Staples Corner

Few joints take as much punishment as those in a car park. Wheel loads, grit and de-icing salts attack the seal and the concrete either side, so failed seals soon lead to leaks onto the level below and broken edges. A sealant suited to traffic and the expected movement goes in. If you’re dealing with torn sealant in brick or block movement joints and joints packed with grit and debris, we can help, whatever the surface. Searching for sealant specialists in Staples Corner? We have been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.

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, at times agreed with the building manager.

Building owners and contractors get the same cover: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Staples Corner (NW2, NW4, NW9)
Wider area
Greater London
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026

Leave it or put it right?

A like-for-like reseal of a joint that keeps splitting rarely lasts. A higher movement class, or a design change by the engineer, may be needed. In Staples Corner, each extra visit means more notices, permits and disruption, so cutting the old sealant out fully and doing it right once is the better route.

We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.

Why us?

  • CSCS-carded applicators
  • Colours chosen to suit frames, cladding or finishes where possible
  • Old sealant cut out, never sealed over
  • 12-month guarantee on workmanship

See our cost guide or our accreditations and insurance.

Aftercare for building managers

Keep the joints in good shape with a few simple steps:

  • Clear dirt from joint lines during routine cleaning
  • Keep traffic off new joints until the cure time is up
  • Note which joints were done, when, and with what
  • Avoid parking heavy plant or pallets on joint lines

Snow ploughs and scrapers catch on joint lines. Raising blades over joints where possible protects the seal, and it’s worth checking joints once the cold weather has passed.

An open joint fills with grit, and a joint full of grit can’t close. The edges then take the pressure and start to spall. A sound seal keeps the joint working.

Signs you need expansion joint sealing in Staples Corner

When a bead pulls away from one face, it has lost adhesion. Dusty, damp or contaminated faces, a missing primer and three-sided adhesion are the usual causes and it often shows on rushed work.

Any of the following is a good reason to get the joints checked over:

  • Water getting into the wall through a failed joint
  • Chipped joint edges on forklift routes
  • Torn sealant in brick or block movement joints
  • Leaks through car park deck joints onto the level below

Across sites such as Silk Bridge Retail Park, which lies north-west of Staples Corner, floor and movement joints can be sealed in phases so units keep working.

Questions to ask before you book

  • What level of public liability insurance do they hold?
  • How long is the guarantee, and what does it include?
  • Who will actually carry out the work
  • Their approach to joint depth and backing

Our contractor checklist

Diagnose, treat, sign off

Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then handed back before we move to the next. For a job in Staples Corner, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we’ll schedule to suit.

  1. We assess the joints on site or from photographs, noting widths and how each has failed.
  2. A fixed quote names the sealant we propose and its movement class.
  3. Where areas have to stay open, we agree a phased sequence before starting.
  4. We strip the old sealant or filler and prepare each face until it’s sound and dry.
  5. Backing rod or bond-breaker sets the depth, primer goes on where specified, and the sealant is applied and tooled.
  6. We check each joint with you, confirm the cure time and sign off under our 12-month guarantee.

Preparing the site

  • Let building users know which areas are affected
  • For older buildings, check the asbestos register before work
  • Point out parking and an unloading spot

Ask for a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to speak to us on 01277 525 020 or email a schedule or drawings with what you know.

Ask for a quote

Read more

Traffic, movement and joints around Staples Corner

Less than 3 miles from Staples Corner there are at least three named estates and business parks. Sites like these are full of saw-cut floor joints, yard slabs and car park joints. Basement car parks and service yards in London tend to be in use all working day, so joints are sealed in sections with each area handed back once cured.

In a school such as Parkfield Primary School, movement joints in brick, block and hall floors tend to be forgotten until they leak. Places like Brent Cross Shopping Park, under half a mile east of Staples Corner, put trolleys over floor joints inside and cars over slab joints outside.

Staples Corner is about 1 mile south of Hendon, in Greater London. Anywhere in NW2, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Staples Corner is one of 764 places we cover in Greater London for movement joints. London is covered too, some 8 miles away.

We cover the NW2, NW4 and NW9 postcode districts. We cover commercial and managed buildings on Park Road, Humber Road and Oxgate Lane. If your building is just outside Staples Corner, we cover Brent Cross (1 mile north-east), Dollis Hill (1 mile south-west), Hendon (1 mile north), The Hyde (1 mile north-west) and West Hendon (1 mile north-west). Bigger towns within reach include London (8 miles south-east), City of Westminster (5 miles south-east), Marylebone (5 miles south-east), Kensington (5 miles south), St Pancras (6 miles south-east) and Shoreditch (7 miles south-east).

Near you in Staples Corner

Around Staples Corner, our work takes us to commercial buildings near Clarefield Park, Clarion and Woodfield School, among other places. There’s a railway station in Staples Corner itself: Brent Cross West station. Other landmarks nearby include St Andrew's Hospital (0.7 miles south) and Church Farmhouse Museum (1.3 miles north). Not far away are Westbere Copse and Darland's Lake.

Map of Staples Corner © OpenStreetMap contributors

Owners, agents and contractors

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Staples Corner can sit alongside others in a wider programme across Greater London.

Surface by surface

Internal floor movement joints

Warehouse and retail floors have saw-cut induced joints and construction joints. A semi-rigid filler is common in trafficked industrial floors, with a flexible sealant where movement is larger.

Brickwork and blockwork joints

Vertical movement joints in brick and block walls let the masonry grow and shrink. We use a sealant rated for the movement, usually low-modulus, with backing rod setting the depth.

Questions about Staples Corner

Can you work in a London building with booked loading and goods-lift slots?

Yes, most London buildings have access rules of some kind, and we plan around them. Send the building rules and access times with your enquiry. All of Greater London is inside the ULEZ, and our planning allows for it

Do you cover business parks and estates near Staples Corner, such as Brent Cross Shopping Park?

Yes. Our area takes in Staples Corner and its surroundings, with estates and business parks such as Brent Cross Shopping Park included. To start, just call 01277 525 020 or email us with the unit, the joints involved and your access times.

Why do our movement joints keep failing?

Most often the movement is too much for the product or the joint width. We review the joint design as well as the sealant before pricing so the same failure isn’t repeated.

Does the weather affect joint sealing?

The joint has to be dry, and the air and surface temperature inside the product’s limits. Cold, damp or frosty mornings can stop work outside.

Do you cover Staples Corner?

Yes. Staples Corner falls within our area, and you can ring 01277 525 020 or email drawings and photos to get started.

Can you work on car park ramps and decks?

Yes, we do. Tyre loads, grit and de-icing salts make these some of the hardest joints to keep sealed and broken edges are flagged before sealing.

Are you CHAS accredited?

Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.

Accreditations

Trusted. Accredited. Insured.