Mastic sealing for building owners and managing agents in Seven Dials, Greater London
Planning work on a mastic joint in Seven Dials? We assess it, carry out the work and guarantee our workmanship for 12 months.
- A mix of products and colours from past repairs
- Movement joints with sealant missing
- Leaks at window and door perimeters
Need mastic sealing in Seven Dials?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
What the job involves on each surface
Commercial and mixed-use buildings
Landlords with commercial portfolios have shopfronts, office entrances and external joints to look after. We work across portfolios on a planned basis.
Planned maintenance
How long mastic lasts depends on exposure, movement and the product used. Regular inspection is the best way to plan resealing.
About our mastic sealing in Seven Dials
Owners and agents typically inherit a building’s mastic rather than choose it, and it ages quietly: it sits round windows and doors, along external joints and through communal areas. When it hardens, splits or pulls away, water and draughts follow along with complaints. If you have draughts at frames across a block and cracked, hardened mastic round windows on a block, we can put it right, whatever the surface. Whether you call it commercial sealant work, mastic application or joint sealing, in Seven Dials it comes down to the same thing: 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.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Location
- Seven Dials (W1F, W1D, W1T)
- Wider area
- Greater London
- Guarantee
- 12 months on every job
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
What affects the price in Seven Dials
What shapes the price:
- Any access equipment needed
- Site requirements such as inductions and permits
- Whether old sealant has to be cut out first
- Whether the work must be split into stages
The specified product makes a difference, and so does the preparation. Access, phasing and site rules also count.
What we need to price the job
Diagnosis starts before we arrive. Tell us:
- The site address and postcode
- The type of building and who uses it
- Specification clauses that apply
- When you need the work done
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.
Looking after buildings in and around Seven Dials
Blocks in London are normally run by managing agents, landlords or housing associations, with residents to notify and access to arrange. We fit the programme to your notice periods.
Property owners at sites such as Grand Vitesse Industrial Estate (1.3 miles south-east of Seven Dials) can have mastic renewed between lettings. If you’re responsible for a building such as Soho Baptist Chapel, frame and door mastic needs the same attention as any other property.
Seven Dials 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. Seven Dials is one of 764 places we cover in Greater London for mastic joints.
Postcode districts covered here: W1F, W1D and W1T for mastic joints. We cover commercial and managed buildings on Duck Lane, Drury Lane and Bridle Lane. Access to Seven Dials is via the A301 and A400 among other routes. Close to Seven Dials, our area also takes in 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). Nearby towns on our patch 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).
Around Seven Dials
Locally, jobs take us to sites close to London Nautical School, St Anne's Churchyard and LSE Shaw Library, among other places. You will also find Two Brewers pub (under half a mile south-west) and Mercers' School (0.8 miles east). There’s a railway station in Seven Dials itself: Tottenham Court Road station. Other landmarks nearby include Kingly Court (0.5 miles west) and St Paul's Hospital (under half a mile north-east). The countryside around Seven Dials includes Barnsbury Wood and Ludgate Hill.
Nearby places to Seven Dials
Also in Seven Dials
Common problems we fix in Seven Dials
Poor preparation explains many failed joints. Where the faces weren’t cleaned or primed as specified it comes away from one face.
Site and facilities staff are often the first to spot these:
- The same joint failures repeated across a portfolio
- Occupiers reporting cold air round windows
- Complaints coming in block by block
- Old repairs sealed over failed mastic
Student blocks close to universities like University of Notre Dame, under half a mile to the south of Seven Dials, are easiest to work on between tenancies.
What to look for in a quote
- How the existing material will be dealt with
- How they’ll work around occupants
- Which product they’ll use, and why it suits the joint
- Will CSCS-carded applicators be on site?
Commercial clients in Seven Dials
We work for building owners and managing agents on everything from one building to a spread of sites around Seven Dials. Several sites can go on one quote, which keeps the paperwork simple.
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, with CSCS-carded applicators on site.
Questions about Seven Dials
We manage a building near Tottenham Court Road station. Can you help?
Yes. Blocks of any size are within what we do. Photos of each elevation help us quote accurately.
Do you cover business parks and estates near Seven Dials, such as Grand Vitesse Industrial Estate?
Yes. We cover Seven Dials and the area around it, including industrial estates, business parks and retail parks such as Grand Vitesse Industrial Estate. To start, just speak to us on 01277 525 020 or email the details over with the unit, the joints involved and your access times.
Do you check for asbestos in old sealant?
Asbestos removal isn’t part of our work. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.
Can people stay in the building while you reseal?
Occupiers stay in the building throughout. We flag any areas that need internal access well before the dates so it can be arranged.
Is Seven Dials in your area?
Yes. We cover Seven Dials and the rest of Greater London. For a quote, ring 01277 525 020 or use the quote form.
How do you choose the sealant?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
How many days will you need on site?
That varies with the scale of the job, but the work normally takes one or more days per building, depending on the joint lengths and the access. For bigger or phased jobs, we’ll set out a timescale with the quote.
Leave it or put it right?
Leaving failed external joints lets water reach the structure behind. That can lead to damp, staining and damage to finishes and those cost far more to put right. Failed sealant in a building in Seven Dials can quickly affect neighbours, tenants or the floor below. Dealing with it early is simpler for everyone.
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.
Why appoint us
- Work carried out by CSCS-carded applicators
- CHAS accredited
- Constructionline member
- Colours confirmed for the specified product
See how commercial sealant jobs are priced or how we’re accredited.
Our process
Occupied buildings need a little choreography. 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 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 inspect the joints, building by building, and record what has failed and why.
- A fixed quote follows, split by block or building if that suits you.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
What we need from you
- Send your site hours and access windows
- Send asbestos survey details if the building is pre-2000
- Let us know about inductions and permits
Getting a fixed quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, call 01277 525 020 or email a schedule or drawings.