Fitzrovia mastic sealing
Mastic sealing for building owners, managing agents and housing associations in Fitzrovia. CHAS accredited and fully insured, with a 12-month guarantee.
- Worn sealant at communal door frames
- Failed external movement joints
- Water getting in round frames after rain
Need mastic sealing in Fitzrovia?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
About our mastic sealing in Fitzrovia
There isn’t one mastic for every joint on a building. Window perimeters and external joints often take a low-modulus neutral-cure silicone, while hybrid polymer sealants grip many materials and are often paintable, and colours are confirmed for whichever product is used. If you have complaints coming in block by block and occupiers reporting cold air round windows, we can put it right, whatever the surface. One point of contact handles commercial sealant work in Fitzrovia from the first photos to the final walk-round, for single jobs and planned programmes alike.
London has a large stock of purpose-built blocks, mansion flats and converted buildings managed by agents and housing associations. Window and door perimeters, balcony joints and communal areas all have mastic that ages together across a building, which is why block-wide programmes make sense.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Place
- Fitzrovia (NW1W, W1T, W1G)
- Region
- Greater London
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Questions about Fitzrovia
Can you cope with the access rules in a London building?
Yes, most London buildings have access rules of some kind, and we plan around them. The building manager’s rules go straight into our method. All of Greater London is inside the ULEZ, and our planning allows for it
Will you take on work at estates like Roman Way Industrial Estate, close to Fitzrovia?
Yes. Estates, retail parks and business parks around Fitzrovia, Roman Way Industrial Estate among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Does weather matter for sealant work?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
Do you check for asbestos in old sealant?
Asbestos removal isn’t part of our work. Anything suspect is tested before we carry on, and the duty to manage asbestos sits with the dutyholder.
Is any job too small?
Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.
Can people stay in the building while you reseal?
Residents and tenants carry on as normal. We flag any areas that need internal access well before the dates so it can be arranged.
How do you choose the sealant?
A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Diagnose, treat, sign off
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed before we move to the next. For a job in Fitzrovia, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we’ll schedule to suit.
- A building-by-building inspection lists the failed joints.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- New sealant goes in with backing rod and primer where needed.
- We check the finished work and confirm the guarantee.
Preparing the site
- For older buildings, check the asbestos register before work
- Tell us which areas need to stay in use
- Move anything stored against the joints
Getting a fixed quote
For a fixed quote, call 01277 525 020 or use the quote form, telling us the site location and the nature of the job. You can also send details through our quote form.
Advice
When to bring in a specialist
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
What happens if it’s left?
A bead run over old mastic can look like a repair. It won’t grip the old sealant and soon comes away. Full removal and proper preparation is what lasts. Failed sealant in a building in Fitzrovia can quickly affect neighbours, tenants or the floor below: water travels through shared structures, and a small leak becomes a dispute between occupiers. Putting it right early is less disruptive than dealing with the consequences.
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
Why appoint us
- Colour options checked against the specified product
- Commercial sealant work since 2005
- Constructionline member for supplier checks
- One number for every site we cover
See our cost guide or how we’re accredited.
When something else is needed
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Leaks through the frame itself rather than the perimeter
- Asbestos-containing sealant, which we don’t remove
If you’re not sure, just ring 01277 525 020 or use the quote form and we will give you a straight answer.
Where we work in Fitzrovia
- Balcony and threshold joints
- Communal kitchens and washrooms
- External wall and movement joints
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Shopfronts below residential blocks
Owners, agents and contractors
If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.
Main contractors use us as their sealant subcontractor. Programme, specification and site rules come first, and our applicators hold CSCS cards.
Also near Fitzrovia
Also in Fitzrovia
When to call us in Fitzrovia
Topping up old mastic is a common shortcut. New sealant won’t grip failed sealant and the repair soon fails.
What tends to prompt an enquiry:
- No planned programme for sealant
- Draught complaints from residents or tenants
- Failed external movement joints
- Estate-wide sealant that is simply worn out
Site managers at schools like All Souls CofE Primary School can fit frame mastic into the summer works.
Before you book anyone
- Will RAMS and insurance details be available?
- Will CSCS-carded applicators be on site?
- How the existing material will be dealt with
- What level of public liability insurance do they hold?
Mastic sealing around Fitzrovia: what changes locally
For a London block, the agent or landlord typically handles notices to residents and access to flats. We fit the programme to your notice periods.
Student accommodation around universities such as University of Westminster, less than half a mile to the south-west of Fitzrovia, is normally managed block by block, which suits a planned mastic programme. If you are responsible for a building such as Whitefield's Tabernacle, frame and door mastic needs the same attention as any other property.
Fitzrovia is about 1 mile north-east of Marylebone, in Greater London. Across the NW1W postcode area, 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, Fitzrovia among them.
Work on mastic joints is covered throughout NW1W, W1T and W1G. If your site is on Euston Road, Duke's Road and Market Place or close by, send details and we will quote for mastic joints. You’ll find Fitzrovia on or near the A501 and A4200, so getting applicators and materials to site is simple. Just outside Fitzrovia, we also work 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). Nearby towns on our patch 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).
Near you in Fitzrovia
In Fitzrovia, that means premises near Carpenters Arms, UCL School of Slavonic and East European Studies and St Anne's Churchyard, among other places. Also close by 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 (under half a mile south-west) and Blindiana Museum (less than half a mile west). Not far away are St. James's Park Lake and Primrose Hill.