Construction and new-build mastic in Seven Dials, Greater London
Planning work on a mastic package in Seven Dials? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Different trades sealing to different standards
- Old sealant on a refurbishment that needs stripping before new work
- Frame perimeters left unsealed or poorly sealed
Construction mastic for businesses in Seven Dials
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Questions we are asked in Seven Dials
Do you take on jobs in Seven Dials where loading and access are tightly controlled?
Yes. Inductions, permits and timed loading are routine for us in London. Share the building’s contractor rules and we’ll work to them.
Will you plan work around the academic year at somewhere like University of Notre Dame?
Yes. Education sites usually want the work in vacations or in phases during term, and we plan to suit. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Do you do internal caulk as well as external mastic?
External perimeters and movement joints, internal caulking where specified, sanitary and kitchen joints, plus snagging in one fixed quote.
What if there’s asbestos in the old mastic?
Managing asbestos is the dutyholder’s responsibility, so we’ll ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.
How many days will you need on site?
That varies with the scale of the job, though a typical visit typically takes whatever the programme allows, since the work follows the trades as areas are released. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Are you insured?
Yes. We are fully insured, and the certificate can go with your quote.
Can you fit around our programme?
The programme sets the job. Tell us the sequence and we’ll plan applicators around it.
Construction mastic in Seven Dials, done properly
On refurbishments, the mastic package typically includes cutting out old sealant as well as sealing new work. Existing joints have to be stripped back to sound faces, because fresh sealant can’t key into cured silicone and the asbestos survey is checked first on older stock. New and existing joints then get the same preparation. If you have old sealant on a refurbishment that needs stripping before new work and frame gaps too wide for sealant alone, we can help, whatever the surface. A specialist sealant contractor works differently from a general builder: on jobs in Seven Dials, preparation and product choice get the time they need.
Every London site, Seven Dials included, is inside the ULEZ, which applies to deliveries and contractors’ vans alike. Alongside that, sites normally need booked deliveries and a plan for where materials go.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Place
- Seven Dials (W1F, W1D, W1T)
- Wider area
- Greater London
- Cover
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
Site staff or a sealant specialist?
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.
Leave it or put it right?
On a refurbishment, there’s a choice between resealing existing frames and replacing them. If the frame is in good order, cutting out and resealing the perimeter can be all it needs, which is a much smaller cost. We will say so if a frame itself is the problem. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.
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.
What you get with us
- A Constructionline member, so easy to vet
- Standard and matched colours in many product ranges
- CHAS accredited contractor
- Colour options checked against the specified product
See how commercial sealant jobs are priced or our accreditations.
Sites and facades in and around Seven Dials
Plenty of hotels sit less than 2 miles from Seven Dials. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight. As part of Greater London, Seven Dials is inside the ULEZ, which applies to every van on site. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for.
Hotels like Radisson Blu Edwardian Mercer Street Hotel, under half a mile to the north-west of Seven Dials, rarely close for long, so refurbishment mastic is phased floor by floor. Hospital estates such as Royal London Hospital for Integrated Medicine (to the north of Seven Dials) 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.
Seven Dials is about 1 mile east of City of Westminster, in Greater London. Across the W1F postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Seven Dials is one of 764 places we cover in Greater London.
Business premises anywhere in W1F, W1D and W1T are within our area. We cover commercial and managed buildings on Duck Lane, Drury Lane and Bridle Lane. With the A301 and A400 nearby, Seven Dials is straightforward for us to reach. If your building is just outside Seven Dials, we cover St Giles (1 mile north), West End (1 mile west), Soho (1 mile west), Covent Garden (1 mile east) and Chinatown (1 mile south-west). Bigger towns within reach include Kensington (3 miles west), Walthamstow (7 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).
Landmarks near Seven Dials
Around Seven Dials, our work takes us to commercial buildings near London Nautical School, St Anne's Churchyard and LSE Shaw Library. Also close by are Two Brewers pub (under half a mile south-west) and Mercers' School (0.8 miles east). Seven Dials has its own railway station: Tottenham Court Road station. A little further out are Kingly Court (0.5 miles west) and St Paul's Hospital (under half a mile north-east). Not far away are Barnsbury Wood and Ludgate Hill.
On site: what to expect
At the end of each section, we remove the tape, clean down and inspect every joint, ready for your sign-off. If an area should be left alone while the sealant cures, we say how long and put signs out. All of Greater London is in the ULEZ, and kerbside space in Seven Dials can be scarce. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.
- We start with the drawings, specification and programme.
- Quantities are measured and a fixed price returned.
- The sequence is agreed with the site manager.
- Plots or floors are sealed as they’re handed over.
- Every joint is cleaned, set to depth and sealed with the specified product.
- Snags are cleared and the package signed off with our 12-month guarantee.
Preparing the site
- Point out any areas we must not close
- Explain the parking and delivery arrangements
- Tell us your opening times and when work is allowed
Ask for a quote
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, call 01277 525 020 or email drawings and photos.
Advice
How the quote is worked out
Quotes vary with the job. Expect it to depend on:
- Travel to remote or island sites
- Quantities, in metres or numbers
- The product specified
- The site’s rules and procedures
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.
What to include in your enquiry
We can often quote from photos and a few details. Please tell us:
- Any dates the work must fit around
- The site address and postcode
- Rough lengths or quantities, or drawings if you have them
- How the joints are reached, and at what height
The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or call the office on 01277 525 020 or use the quote form if you’d rather talk the job through.
Also near Seven Dials
Other services in Seven Dials
Signs you need construction mastic in Seven Dials
A joint without backing rod or bond-breaker often fails early. Fixed to three faces, the sealant rips the first time the joint opens.
Site and facilities staff are often the first to spot these:
- Perimeter gaps outside the sealant’s range
- Sanitary sealant damaged by following trades
- Missed perimeter joints on a new elevation
- Cracks opening in caulked internal joints
Building work at universities like University of Notre Dame (to the south of Seven Dials) is often timed for the summer, mastic included.
Comparing quotes
- The terms of the workmanship guarantee
- Their public liability cover
- Which product they’ll use, and why it suits the joint
- Who will actually carry out the work
Work for main contractors and building owners
CHAS accredited and a Constructionline member, we’re straightforward to vet for your supplier list. We’re fully insured, and our insurance certificate can go with the quote.
If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.