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

Cricklewood commercial sealant contractors

Commercial sealant contractors in Cricklewood, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Layers of sealant, all of them failing
  • Wall and floor joints that have lost their seal
  • Black mould through washroom sealant that won’t clean off
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Commercial sealant contractors for businesses in Cricklewood

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

Commercial sealant contractors in Cricklewood, done properly

How long a joint lasts is decided before any sealant leaves the gun. Silicone has no grip on cured silicone, so the failed bead is cut out completely. Where the sealant maker specifies a primer for that substrate, it goes on before the new bead. We work on kitchen worktops and splashbacks, movement joints in walls and floors and external facade joints, and the usual reasons a site gets in touch are wall and floor joints that have lost their seal and earlier reseals applied straight onto the failed bead. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Cricklewood it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

A lot of what we do in Cricklewood is replacing sealant that has done its years: split, chalky or peeling, with leaks or mould starting behind it.

For managing agents and FMs looking after premises in Cricklewood, access is typically the first question: loading bay slots, goods lifts, permits to work and somewhere to keep materials. With access agreed, we work through the sealant joints a section at a time, keeping disruption to tenants low.

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.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Cricklewood (NW2, NW6, NW10)
Wider area
Greater London
Cover
12 months on our workmanship
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

On site: what to expect

At the end of each section, the masking comes off, the area is cleaned and every joint is checked, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. All of Greater London is in the ULEZ, and kerbside space in Cricklewood can be scarce. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.

  1. First, details reach us through the quote form or a site visit.
  2. We diagnose the cause of failure and price a fixed scope.
  3. Where parts of the building must stay open, the work is phased.
  4. Old sealant is cut out completely, never sealed over.
  5. Each joint gets a suitable sealant, laid to depth and tooled.
  6. A final walk-round, then the 12-month guarantee applies.

What we need from you

  • Share your working hours and any access restrictions
  • Agree which areas must stay open
  • Flag any permit to work we’ll need

Request a quote

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to ring 01277 525 020 or email the details over.

Get a quick quote

Advice

Working on commercial sites near Cricklewood

Three care or nursing homes sit less than 2 miles from Cricklewood. Kitchens and communal rooms in care settings are cleaned constantly, so their joints need to be smooth and sound, often in colours that suit the décor. Less than 3 miles from Cricklewood there are at least three named estates and business parks. Units on sites like these change tenants and get refitted, and each refit leaves joints to seal, often in a colour the occupier specifies.

If you run an office at a site such as The Quadrant Business Centre (1.1 miles south-east of Cricklewood), the sealant at reception desks, tea points and frames ages with each fit-out. For a hotel such as The Crown Moran Hotel, under half a mile north-east of Cricklewood, the colour of a joint at the bar or the bath matters to the look of the room.

Cricklewood is about 1 mile north-west of Kilburn, in Greater London. Commercial clients in Cricklewood use us for work on sealant joints, as part of our coverage of Greater London. Across Greater London, 764 places are covered, including Cricklewood. We also cover London, some 7 miles away.

Postcode districts covered here: NW2, NW6 and NW10. For a building on Ivy Road, Walm Lane and Dean Road or nearby, send details and we will quote for sealant joints. Being close to the A407, Cricklewood is straightforward for us to reach. If your building is just outside Cricklewood, we cover Brondesbury (1 mile south-east), Willesden (1 mile south-west), Dollis Hill (1 mile north-west), Willesden Green (1 mile south-west) and Neasden (1 mile west). Nearby towns on our patch include London (7 miles south-east), City of Westminster (4 miles south-east), Marylebone (4 miles south-east), Kensington (4 miles south), St Pancras (5 miles south-east) and Shoreditch (6 miles east).

What’s near Cricklewood

We work on buildings around Hampstead School, The Crown Public House and Gladstone Park, among other places. There’s a railway station in Cricklewood itself: Cricklewood station. Well-known places in the area include St Andrew's Hospital (0.8 miles north-west) and Brent Museum and Archives (0.7 miles south-west). Green spaces nearby include Parliament Hill and Westbere Copse.

Map of Cricklewood © OpenStreetMap contributors

Do you need commercial sealant contractors in Cricklewood?

No sealant joint is permanent. Its life comes down to movement, UV and weather, how it’s cleaned, how much traffic passes it and what was used in the first place. On a busy commercial site several of those pile up at once.

Things that normally lead to an enquiry:

  • Wall and floor joints that have lost their seal
  • Sanitary sealant that has gone black and patchy
  • Gaps behind commercial kitchen worktops and sinks
  • Damp patches where an external joint has failed

Premises within reach of Cricklewood station, under half a mile to the north-east of Cricklewood, often have busy frontages where joints are seen by everyone passing.

Questions to ask before you book

  • Can the work be phased to keep areas open?
  • Will RAMS and insurance details be available?
  • How the existing material will be dealt with
  • Whether their applicators hold CSCS cards

Our contractor checklist

Cost factors for sealant joints

Sealant work doesn’t have a standard rate, since sites vary so much. What we take into account:

  • Any access equipment needed
  • The size and state of each joint
  • Removal of failed or old sealant
  • Site requirements such as inductions and permits

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.

What we need to price the job

It doesn’t need to be a full survey. These details are enough to start:

  • The product your specification calls for
  • Whether an asbestos survey exists
  • Anything awkward about access or site hours
  • A wide shot and a close-up of the area

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, speak to us on 01277 525 020 or use the quote form.

When to bring in a specialist

Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

Questions we’re asked in Cricklewood

Do you work in London buildings with loading restrictions?

Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. Share the building’s contractor rules and we will work to them. The ULEZ covers the whole of Greater London, which we allow for

Must a hotel around Cricklewood close while you work?

Rarely. Rooms or floors are done in turn, so the rest of the hotel keeps trading. We agree the order of rooms and the timings with you before we start.

How do we get a quote?

Send photographs, drawings or a list of locations. If a visit is needed we’ll book one, and a fixed quote follows.

Do you work to architects’ specifications?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.

What guarantee do you give on resealing?

A 12-month guarantee covers the workmanship from handover. Looking after the joints as we advise helps them last.

Can you supply RAMS and insurance details?

We confirm documents at quote stage: RAMS, an insurance certificate and CSCS details are the usual requests. Our applicators are CSCS-carded.

Will your applicators have CSCS cards?

Yes. If you need card details for site access, tell us and we’ll confirm them with the quote.

When something else is needed

Honesty saves time and money. Fresh joints won’t solve:

  • Misted, cracked or failed glazing units (a glazier’s job)
  • Structural cracks or movement the joints weren’t designed for
  • Leaks from pipework, wastes or valves (that’s plumbing)

If in doubt, call 01277 525 020 or email us and we’ll say what we think.

Surfaces we seal

  • Window and door perimeters
  • Washrooms and tea points
  • Kitchen worktops and splashbacks
  • Floor and threshold joints
  • External facade joints
  • Movement joints in walls and floors

Looking after the joints

Regular inspection catches problems early. Specifically:

  • Report cracked or peeling sealant early
  • Respect the cure time before reopening an area
  • Keep abrasive pads and scrapers off resealed joints
  • Note dates and locations of sealant work for future planning

Good ventilation keeps wet-area sealant in better condition. Extraction that isn’t working keeps the joints wet, and mould follows damp. Your maintenance team can look at extract fans at the same time.

Movement joints that fill with debris stop working. The joint can no longer close, so its edges crack or spall. At that point it’s a repair job rather than a reseal.

Accreditations

Trusted. Accredited. Insured.