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

Mastic sealing for building owners and managing agents in Charing Cross, Greater London

Sealant work in Charing Cross for main contractors, managing agents and facilities managers: mastic sealing for building owners, managing agents and housing associations, quoted at a fixed price.

  • Estate-wide sealant that is simply worn out
  • Old repairs sealed over failed mastic
  • Open joints in brickwork or panels
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Mastic sealing across Charing Cross

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

How we handle mastic sealing in Charing Cross

For blocks and buildings in Charing Cross and across Greater London, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Addresses, photos of typical joints and a rough idea of quantities let us give a quick quote or we can visit. If you have complaints coming in block by block and cracked, hardened mastic round windows on a block, we can put it right, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Charing Cross is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Planning mastic work on a London block means notices to residents, access to flats and agreed working areas. Work is planned with the agent so residents get notice and access is arranged in advance.

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.

Location
Charing Cross (W1F, W1D, W1S)
Wider area
Greater London
Cover
12 months on every job
Quote
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Doing it in-house

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 easy to get wrong without experience.

Redoing a failed joint normally costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

When something else is needed

Before quoting, we check that sealant is the right answer. It isn’t the answer for:

  • Failed window or door frames, which need a window contractor
  • Water coming in from the roof or rainwater goods
  • Glazing that needs replacing

Not sure which it is? You can give us a call on 01277 525 020 or use the quote form and we will tell you honestly.

Joints and surfaces we work on

  • Shopfronts below residential blocks
  • Balcony and threshold joints
  • Window and door perimeters on blocks
  • Communal entrances and stairwells
  • Communal kitchens and washrooms
  • External wall and movement joints

Block-wide mastic in Charing Cross

For a London block, the agent or landlord normally handles notices to residents and access to flats. We work to your notice and access plan.

Owners of student blocks near University of Notre Dame, less than half a mile to the north-west of Charing Cross, can schedule frame and external mastic for the summer vacation. If you look after a block within reach of London Charing Cross station, under half a mile east of Charing Cross, frame and balcony mastic can be renewed on one programme. Older community buildings, St Martin-in-the-Fields among them, often have frames of mixed ages whose mastic varies.

Charing Cross is about 1 mile south-east of City of Westminster, in Greater London. Any commercial site in Charing Cross is covered, for single jobs and planned programmes alike. Charing Cross is one of 764 places we cover in Greater London for mastic joints.

If you need mastic sealing in W1F, W1D and W1S, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. For a building on Duck Lane, Drury Lane and Bridle Lane or nearby, we can quote for mastic joints. You will find Charing Cross on or near the A4 and A301, so getting applicators and materials to site is simple. Sites close to Charing Cross are covered too, including St James's (1 mile west), Adelphi (1 mile north-east), Chinatown (1 mile north-west), West End (1 mile north) and Covent Garden (1 mile north-east). Further afield, our area takes in Kensington (3 miles west), Walthamstow (7 miles north-east), Hoxton (3 miles north-east), Whitechapel (3 miles east), Hampstead (4 miles north-west) and Ruislip (13 miles west).

What’s near Charing Cross

Locally, jobs take us to sites close to Westminster Abbey Choir School, Silver Cross Tavern and Harris Westminster Sixth Form, among other places. You will also find London Library (less than half a mile west) and Victoria Embankment Gardens (under half a mile east). There’s a railway station in Charing Cross itself: London Charing Cross station. Well-known places in the area include Montfichet's Tower (1.2 miles east) and Royal United Services Institute (under half a mile south). The countryside around Charing Cross includes Barnsbury Wood and St. James's Park Lake.

Map of Charing Cross © OpenStreetMap contributors

Diagnose, treat, sign off

We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. For a job in Charing Cross, access comes first. Give us the hours we can be on site and we will schedule to suit.

  1. A building-by-building inspection lists the failed joints.
  2. You get a fixed quote, per block or for the whole programme.
  3. Dates and areas are agreed so occupiers can be told.
  4. Old mastic is removed and the joint faces prepared.
  5. Joints are resealed and tooled.
  6. Each building is checked and signed off with the 12-month guarantee.

Preparing the site

  • Share your working hours and any access restrictions
  • Confirm the product named in the specification
  • Arrange parking or a loading space

Quotes

For a fixed quote, ring 01277 525 020 or send details through our quote form. You can also send details through our quote form.

Get a price

Read more

Work for main contractors and building owners

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Charing Cross can sit alongside others in a wider programme across Greater London.

What happens if it’s left?

Looking at mastic during planned maintenance costs little. Waiting until leaks appear means working under pressure with less control over timing. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.

The price depends on how many linear metres there are, what has to come out first and how the joints are reached. Call for a quote once you have the details.

What you get with us

  • Failed material removed, not covered up
  • Fully insured
  • 12 months’ guarantee on every job
  • Over 20 years of commercial sealing

See our cost guide and our accreditations.

What the job involves on each surface

Commercial and mixed-use buildings

Commercial buildings have mastic at shopfronts, entrances and external joints. We work across portfolios on a planned basis.

External movement joints

Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.

Common questions from Charing Cross clients

Does your area include sites such as Grand Vitesse Industrial Estate, near Charing Cross?

Yes. Estates, retail parks and business parks around Charing Cross, Grand Vitesse Industrial Estate among them, are all within reach. A few photographs and the unit address let us price the work.

Do you work in London buildings with loading restrictions?

Yes. Inductions, permits and timed loading are routine for us in London. Share the building’s contractor rules and we’ll work to them. All of Greater London is inside the ULEZ, and our planning allows for it

Do you guarantee the mastic work?

Our workmanship carries a 12-month guarantee, backed by public liability insurance.

Will residents or tenants be disturbed?

The work is planned around occupiers. We agree the programme so you can notify occupiers, and entrances stay in use.

What will the job cost?

That depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a quote.

Do you seal on top of existing sealant?

No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

Do you need to see the site first?

It depends on the job. Straightforward work can often be priced from photos and measurements, while larger or less clear jobs get a site visit first.

Accreditations

Trusted. Accredited. Insured.