Construction Mastic in Fitzrovia
Work needed on a mastic package in Fitzrovia? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Caulk cracking where joints are moving more than expected
- Missed perimeter joints on a new elevation
- New external sealant already peeling away
Construction mastic across Fitzrovia
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
About our construction mastic in Fitzrovia
The programme rarely stands still, so the mastic package has to flex with it. We agree a sequence at the start and adjust it as the site manager releases areas and we don’t seal before other trades have finished in an area. That keeps the work right first time and saves rework. If you’re dealing with old sealant on a refurbishment that needs stripping before new work and different trades sealing to different standards, we can put it right, on cladding and panel joints, window and door perimeters and internal decorators’ caulk alike. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Fitzrovia, preparation and product choice get the time they need.
A great deal of London construction is refurbishment of occupied or part-occupied buildings, alongside new blocks. New frames, overcladding and fit-outs all end in perimeter and facade joints, frequently with occupants close by.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.
- Place
- Fitzrovia (NW1W, W1T, W1G)
- Region
- Greater London
- Cover
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
Construction mastic in Fitzrovia: the local picture
Plenty of hotels sit less than 2 miles from Fitzrovia. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up. Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in Fitzrovia. Deliveries are booked and storage is tight, so mastic materials come in as needed.
Projects at colleges like London College of Clinical Hypnosis, 0.5 miles south-east of Fitzrovia, tend to run to term dates, so the mastic is planned tightly. For contractors refurbishing units at places like Roman Way Industrial Estate (1.7 miles north-east of Fitzrovia), the mastic covers cladding panels, roller-door and window perimeters.
Fitzrovia is about 1 mile north-east of Marylebone, in Greater London. Commercial clients in Fitzrovia can call on us for mastic packages, as part of our coverage of Greater London. Fitzrovia is one of 764 places in Greater London on our list for mastic packages.
Business premises anywhere in NW1W, W1T and W1G are within our area for mastic packages. Buildings on Euston Road, Duke's Road and Market Place are within our area. With the A501 and A4200 nearby, Fitzrovia is straightforward for us to reach. Close to Fitzrovia, our area also takes in Euston (1 mile north-east), Marylebone (1 mile south-west), Bloomsbury (1 mile east), Somers Town (1 mile north-east) and Soho (1 mile south-east). Bigger towns within reach include Kensington (3 miles south-west), Shoreditch (3 miles east), Walthamstow (7 miles north-east), Whitechapel (3 miles east), Hampstead (3 miles north-west) and Ruislip (12 miles west).
Around Fitzrovia
Recent enquiries here include premises near Carpenters Arms, UCL School of Slavonic and East European Studies and St Anne's Churchyard and the streets around them. Nearby too are Wellcome Library (under half a mile north-east) and Maria Fidelis Catholic School FCJ (under half a mile north). There’s a railway station in Fitzrovia itself: London Euston station. Well-known places in the area include London Foot Hospital (less than half a mile south-west) and Blindiana Museum (less than half a mile west). The countryside around Fitzrovia includes St. James's Park Lake and Primrose Hill.
How the quote is worked out
These are the things that shape the price:
- The product specified
- Phasing around occupants
- Travel to remote or island sites
- Quantities, in metres or numbers
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Details that help us quote
To price the job accurately, we need to understand the site. Send us:
- Your programme or deadline
- Clear photographs of the problem areas
- How the joints are reached, and at what height
- The asbestos register, for older buildings
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, speak to us on 01277 525 020 or send details through our quote form.
Building owners, agents and FMs in Fitzrovia
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Fitzrovia. Several sites can go on one quote, which keeps the paperwork simple.
Questions we’re asked in Fitzrovia
Can you cope with the access rules in a London building?
Yes, we plan every London job around the building’s own access rules. 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
Would you work within a site like Fitzrovia Hospital?
Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
How long do sealant joints last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.
Can you clear a mastic snag list before handover?
Yes. We clear snags by redoing joints rather than patching them to suit the programme.
What happens if the weather stops external sealing?
External sealant needs a dry joint and a temperature within the product’s range. Frosty or damp mornings can hold up external sealing, so internal areas are often done on those days.
What guarantee comes with a mastic package?
Our workmanship carries a 12-month guarantee from sign-off. Damage by others after we have finished isn’t covered.
Do you do fire-rated sealing on new builds?
Where the specification calls for fire-rated or intumescent sealant around service penetrations or linear gaps, we install it to the manufacturer’s tested details. The design and sign-off belong to the designer, fire engineer or building control.
Looking after the joints
A few simple habits keep the new joints working:
- Check frame gaps are within the sealant’s range before sealing
- Note which sealant went where at handover
- Put any product change through the designer first
- Allow flexibility for external sealing in damp or cold weather
Our 12-month guarantee covers the workmanship from sign-off. Damage by others isn’t a workmanship fault.
One unsealed frame can let water into finished internal areas. On a new building that means remedial work after decorating and possibly a delayed handover. Checking perimeters before internal finishes go on avoids it.
How the job changes by surface
External facade and movement joints
Many facade substrates need a primer before sealing. We prime where the manufacturer specifies.
Bathrooms, en suites and washrooms
In bathrooms and washrooms, an anti-mould sanitary silicone goes around every fitting. Each joint is prepared, sealed and finished with a neat tooled line and baths are loaded where appropriate before sealing.
Places near Fitzrovia
Also in Fitzrovia
Our process
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. Let us know about any on-site parking or loading arrangements when you send the job details.
- Drawings, the sealant specification and your programme come to us for pricing.
- We return a fixed quote that ties the mastic package to your programme.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- We seal each plot or floor as it’s released to us.
- Each joint is prepared, backed to depth and sealed in the product the specification names.
- We close out snagging and hand over with a 12-month guarantee.
What we need from you
- Let us know about inductions and permits
- Agree which areas must stay open
- Confirm the product named in the specification
Request a quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, phone 01277 525 020 or send photos by email.
Related advice
Signs you need construction mastic in Fitzrovia
Value-engineered products sometimes end up in the wrong joints. A sealant that isn’t right for the substrate or the movement will fail ahead of time. We stick to the specified product, or put any alternative to you first.
It’s worth sending us details if you spot any of the following:
- Missed perimeter joints on a new elevation
- A mastic package split between trades with no clear owner
- Failed sealant in an existing building being refurbished
- Snag items on joints that need redoing before handover
New wings at hospitals like Fitzrovia Hospital (under half a mile west of Fitzrovia) bring long runs of window and panel joints to seal.
Questions to ask before you book
- How the joint faces will be prepared and primed
- Their public liability cover
- Will CSCS-carded applicators be on site?
- How the existing material will be dealt with