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

Colindale expansion joint sealing

Planning work on a movement joint in Colindale? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Hardened, cracked sealant on exposed facades
  • Sealant peeling off one face of the joint
  • Layers of sealant in a movement joint
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Expansion joint sealing near Colindale

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

About our expansion joint sealing in Colindale

Joints in car park decks and ramps are among the hardest-working in any building. Tyres load the edges, and de-icing salts and water work into any gap. We reseal deck and ramp joints with a trafficable sealant chosen for the movement and the work can be phased so parts of the car park stay open. Most enquiries involve sealant peeling off one face of the joint and spalled or broken joint edges in floors and decks, across podiums and floor movement joints, blockwork control joints and car park decks and ramps. Whoever orders the work in Colindale, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Areas such as a loading bay or car park deck in Colindale usually have to stay in use. We work through joints a section at a time, closing small areas in turn, at times agreed with the building manager.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

Place
Colindale (NW9, NW4, HA8)
Wider area
Greater London
Guarantee
A 12-month guarantee
Quote
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

When it isn’t the sealant

We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:

  • Mechanical expansion joint covers, cover plates or proprietary joint systems (a specialist supplier’s job)
  • Crumbling edges that would give a new bead nothing sound to grip
  • Leaks coming from the membrane rather than the joint seal

If you’re not sure, just speak to us on 01277 525 020 or send photos by email and we’ll give you a straight answer before you book.

Where we work in Colindale

  • Podiums and floor movement joints
  • Precast concrete panel joints
  • Cladding panel joints
  • Brickwork movement joints
  • Car park decks and ramps
  • Blockwork control joints

Questions about Colindale

Does your area include sites such as Colindale Retail Park, near Colindale?

Yes. We cover Colindale and the area around it, including industrial estates, business parks and retail parks such as Colindale Retail Park. Send details of the unit and the work through our quote form for a quick quote.

Is a hospital such as BMI Hendon Hospital somewhere you can work?

Yes, hospitals are one of the sectors we cover. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

When can the area be used after sealing?

That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.

Which sealant will you use?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

When can you be on site?

We’re in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.

Can the building stay open while you work?

Yes, as long as we plan it. Tell us your site hours and access windows and we’ll plan around them.

What exactly is a movement joint?

The terms overlap a great deal. A movement joint allows for expansion, contraction, shrinkage and loading while the sealant stops grit and water getting in.

On site: what to expect

Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself typically takes a short visit for a handful of joints, or several days or more for a car park deck or long runs of facade joints, and our waste is bagged and taken away as we go. Planning a London job such as one in Colindale starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.

  1. We start with photos, approximate lengths and any drawings, visiting where needed.
  2. Joint widths and expected movement are checked against what the sealant can take.
  3. Old sealant and debris are cut out of every joint.
  4. Edges are checked, and we tell you if any need repairing before sealing.
  5. The right sealant goes in at the right depth, bonded to the two sides only.
  6. Each area is handed back after its cure time, under our 12-month guarantee.

Before we start on site

  • Send your site hours and access windows
  • Explain the parking and delivery arrangements
  • Agree which areas must stay open

Getting a fixed quote

Send us photographs, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.

Get a quick quote

Advice

Different surfaces, different methods

Brickwork and blockwork joints

Vertical movement joints in brick and block walls let the masonry grow and shrink. They take a low-modulus sealant with a movement class to suit laid over backing rod at the correct depth.

Joints between different materials

Junctions between brick and render, or concrete and cladding, move independently. The product must bond to both substrates and cope with the movement, with primer where specified.

Cost factors for movement joints

These are the things that shape the price:

  • Whether the work must be split into stages
  • The size and state of each joint
  • Which sealant the job calls for
  • Any access equipment needed

The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.

Sending details for a quote

Diagnosis starts before we arrive. Let us know:

  • Clear photographs of the problem areas
  • Whether an asbestos survey exists
  • Your programme or deadline
  • What the building is and how it’s used

Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email us.

Site staff or a sealant specialist?

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Joints that move: notes for Colindale

At least three named trading, business or retail sites lie within about 3 miles of Colindale. Sites like these are full of saw-cut floor joints, yard slabs and car park joints. 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.

For a store at a site such as Colindale Retail Park, which lies west of Colindale, the service yard and goods-in area are where joints break down first. Phasing is what makes joint work possible on busy sites such as Silk Bridge Retail Park (0.8 miles south of Colindale): one bay, aisle or car park row at a time. A healthcare site such as BMI Hendon Hospital, 1 mile to the east of Colindale, depends on car parks, ramps and service yards whose joints take traffic all day.

Colindale is about 1 mile south-east of Burnt Oak, in Greater London. We cover Colindale, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Across Greater London, 764 places are covered, including Colindale. Sites around London have their own page, about 9 miles away.

Postcode districts covered here: NW9, NW4 and HA8 for movement joints. If your site is on Cecil Road, Booth Road and Ajax Avenue or close by, send details and we’ll quote for movement joints. Access to Colindale is via the A5150. Sites close to Colindale are covered too, including West Hendon (1 mile south), The Hyde (1 mile south), The Burroughs (1 mile east), Hendon (1 mile south-east) and Kingsbury (1 mile south-west). Nearby towns on our patch include London (9 miles south-east), City of Westminster (7 miles south-east), Marylebone (7 miles south-east), Kensington (7 miles south), St Pancras (7 miles south-east) and Shoreditch (9 miles south-east).

Around Colindale

In Colindale, that means premises near Sunny Hill Park, Saracens High School and Kisharon College. Colindale’s nearest station is Hendon station, about 1 mile south-east. Other landmarks nearby include Edgware Community Hospital (1.3 miles north-west) and Brent Cross Shopping Centre (1.5 miles south-east). Not far away are Darland's Lake and Parliament Hill.

Map of Colindale © OpenStreetMap contributors

Leave it or put it right?

Leaving a failed movement joint rarely stays a small problem. Water and debris get in, the joint jams and the edges spall and the job grows to repairs as well as sealing. Acting at the first split keeps the cost down. Access in London is hard enough to arrange once, so while access is arranged it pays to renew all failing joints, not just the worst.

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.

Why us?

  • Over 20 years of commercial sealing
  • Coloured sealants to suit the setting, where available
  • Failed material removed, not covered up
  • Constructionline member for supplier checks

Read what affects the cost and our accreditations.

Accreditations

Trusted. Accredited. Insured.