Construction Mastic in Chinatown
Mastic packages for new-build and refurbishment projects in Chinatown and across Greater London. CHAS accredited and fully insured, with a 12-month guarantee.
- Failed sealant in an existing building being refurbished
- External joints sealed in damp or cold conditions that are now failing
- Different trades sealing to different standards
Construction mastic for Chinatown sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Cost factors for mastic packages
Sealant work doesn’t have a standard rate, because every site is different. What we take into account:
- How accessible the joints are
- Quantities, in metres or numbers
- How much existing material needs removing
- Joint width, depth and condition
No two sites price the same: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
What to include in your enquiry
A few photos plus some basic facts will normally do. Please tell us:
- Drawings or a marked-up plan, if available
- Any dates the work must fit around
- The product your specification calls for
- The site address and postcode
Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.
About our construction mastic in Chinatown
Mastic tends to be one of the final packages before handover, so it lands at exactly the point the programme is tightest. We work as a mastic subcontractor to main contractors and developers. If you are dealing with oversized or tapered gaps around new frames and external joints sealed in damp or cold conditions that are now failing, we can help, on brick and block movement joints, internal decorators’ caulk and window and door perimeters alike. One point of contact handles commercial sealant work in Chinatown from the first photographs to the final walk-round, for single jobs and planned programmes alike.
Around Chinatown, as across London, much of the work is refurbishing existing buildings as well as building new ones. Replacement windows, recladding and fit-outs leave perimeter and facade joints to seal, often next to people still using the building, so tidy, well-planned work matters.
Every job we finish is backed by a 12-month workmanship guarantee, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Place
- Chinatown (W1F, W1D, W1T)
- Wider area
- Greater London
- Cover
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Nearby places to Chinatown
More services for Chinatown
Different surfaces, different methods
External facade and movement joints
Many facade substrates need a primer before sealing. Primer goes on where the sealant maker calls for it and work only when conditions suit.
Snagging before handover
Snagging is often the final mastic stage. We can work through the snag list area by area.
What sealant work can’t fix
Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is one of these:
- Joint design decisions that belong to the architect or engineer
- Damage to finishes by other trades after we’ve sealed
- Deciding which fire-stopping product a penetration needs
If in doubt, speak to us on 01277 525 020 or email the details over and we will say what we think before you book.
Surfaces we seal
- Window and door perimeters
- Brick and block movement joints
- Floor and skirting junctions
- Sanitary and kitchen joints
- Cladding and panel joints
- Internal decorators’ caulk
Work for main contractors and building owners
CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so the building keeps working while we do.
Chinatown: questions and answers
Will you take on work at estates like Grand Vitesse Industrial Estate, close to Chinatown?
Yes. Our area takes in Chinatown and its surroundings, with estates and business parks such as Grand Vitesse Industrial Estate included. To start, just call 01277 525 020 or email the details over with the unit, the joints involved and your access times.
Can you cope with the access rules in a London building?
Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. The building manager’s rules go straight into our method. The ULEZ covers the whole of Greater London, which we allow for
Will you come and look before quoting?
That depends on the size and complexity of the job. Straightforward work can often be priced from photos and measurements, and bigger or more complex jobs normally get a visit.
Can the building stay open while you work?
Yes, with some planning. Tell us your site hours and access windows and we will plan around them.
Do your applicators hold CSCS cards?
Our applicators hold CSCS cards, and we’re CHAS accredited and a Constructionline member. We are also fully insured, with five million pounds of public liability cover.
How soon can the area be used again?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.
What’s the quickest route to a quote?
You can use the quote form on this site; alternatively, phone 01277 525 020 or send photos by email. Include photos or drawings if you have them.
When to bring in a specialist
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Our process
Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. All of Greater London is in the ULEZ, and kerbside space in Chinatown can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Site paperwork is confirmed and our CSCS-carded applicators are inducted.
- Sealing follows the programme as areas are released.
- Any frame gaps or issues outside our scope are flagged to the site team.
- The package is closed out, snags cleared and backed by our 12-month guarantee.
Getting the site ready
- Share your working hours and any access restrictions
- Have the specification and drawings to hand
- Point out parking and an unloading spot
Request a quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
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Construction mastic in Chinatown: the local picture
Chinatown has plenty of hotels close by, all within 2 miles. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades. The ULEZ covers the whole of Greater London, Chinatown included, so site vehicles need to meet its standards or pay the daily charge. Delivery slots and scarce storage shape how and when the mastic goes in.
For a contractor at a hotel such as Hotel Indigo, under half a mile south-east of Chinatown, the mastic often has to be finished before a reopening date. Hospital estates such as Royal London Hospital for Integrated Medicine, 0.9 miles to the north-east of Chinatown, tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan. For contractors at a college like Westminster Kingsway College Soho Centre (less than half a mile north-west of Chinatown), perimeters and internal sealant are timed for the holidays.
Chinatown is about 1 mile east of City of Westminster, in Greater London. Anywhere in W1F, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Across Greater London, 764 places are covered, including Chinatown.
Commercial sites across W1F, W1D and W1T are covered for mastic packages. We cover commercial and managed buildings on Duck Lane, Drury Lane and Bruton Lane and the roads nearby. Chinatown sits on or close to the A4 and A301, which helps when planning parking and deliveries for the job. Sites close to Chinatown are covered too, including Soho (1 mile north), St James's (1 mile south), West End (1 mile north-east), Seven Dials (1 mile north-east) and St Giles (1 mile north-east). A short drive away, we cover Kensington (3 miles west), Shoreditch (3 miles north-east), Walthamstow (7 miles north-east), Hoxton (3 miles north-east), Whitechapel (3 miles east) and Hampstead (4 miles north-west).
Landmarks near Chinatown
We work on buildings around LITE Regal International School, London Library and Waxy O'Connor's pub and the streets around them. You’ll also find St Anne's Churchyard (under half a mile north-west) and Harris Westminster Sixth Form (0.8 miles south). Chinatown has its own railway station: Tottenham Court Road station. Well-known places in the area include Leverian collection (under half a mile south-east) and Montfichet's Tower (1.3 miles east). Open spaces near Chinatown include Barnsbury Wood and St. James's Park Lake.