Facade Sealing contractors in Canary Wharf
We carry out facade joint and window perimeter sealing on commercial buildings in Canary Wharf and the surrounding area. Send details for a fixed quote.
- Patch repairs that keep failing
- Leaks at window and door perimeters
- Facade joints cracked through the middle
Facade sealing across Canary Wharf
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
On site: what to expect
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. In Canary Wharf, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.
- We look at the joints, the drawings and the access before pricing.
- The old bead is cut away completely, not overlaid.
- Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
- Closed-cell rod fixes the depth, and the sealant grips two sides only.
- A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
- We walk the finished joints with you before handing over.
Before we start on site
- Share the asbestos register for older buildings
- Arrange parking or a loading space
- Tell staff and tenants when we’ll be in
Get a fixed quote
The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or call the office on 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.
Related advice
How we handle facade sealing in Canary Wharf
External sealing depends on the weather more than most trades. Joints have to be dry and the air and surface temperature within the product’s range. We build that into the programme and tell you if the forecast changes the plan. The enquiries we see most involve failed sealant on precast panel joints and new sealant peeling off old mastic, on window and door perimeters, stone and brick facade joints and coping and flashing joints. Whoever orders the work in Canary Wharf, the brief is normally the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Building sites in London tend to be tight: small compounds, delivery slots and shared hoists and scaffold. We fit around the programme, sealing each elevation or floor as other trades hand over.
Work we carry out comes with a 12-month guarantee. If an installation problem shows up, call 01277 525 020 or email drawings and photos and we will arrange a return visit.
- Place
- Canary Wharf (E14, SE16, E22)
- Wider area
- Greater London
- Guarantee
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Questions we’re asked in Canary Wharf
Can you take on a job at a hospital such as The London Independent 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.
Can you work in a London building with booked loading and goods-lift slots?
Yes, we plan every London job around the building’s own access rules. Say when the building is occupied and when it’s quiet, and we will plan accordingly.
How long does a typical visit take?
We plan the time on site around your programme and access. We will give you an estimate of time on site when we quote.
What type of sealant goes on window perimeters?
It depends on the joint, the substrate and any specification. BS EN 15651 Parts 1 and 2 cover facade and glazing sealants, and specifications often name them.
Are you fully insured?
Yes. Mastic Doctor is fully insured, public liability included.
Can you work while the building is occupied?
Typically, yes. Phased work can be planned so areas stay in use, with each area protected and signed.
How long will the new sealant last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Site staff or a sealant specialist?
Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
Places near Canary Wharf
More services for Canary Wharf
What sealant work can’t fix
A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be one of these:
- Installing or repairing glazing systems
- Joints whose design needs changing by the specifier
- Damp caused by condensation inside the building
Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we’ll tell you honestly before you book.
What we seal
- Coping and flashing joints
- Window and door perimeters
- Stone and brick facade joints
- Cladding panel joints
- Perimeter joints where frames meet the structure
- Shopfront frames
Maintenance after handover
After handover, these steps help:
- Plan facade sealing alongside redecoration
- Keep pressure washers away from fresh sealant
- Avoid patch repairs on failed facade joints
- Confirm the survey covers external sealants in older buildings
Following storms, look inside for damp or staining near frames. An early report usually means a small reseal rather than a bigger repair.
Planned resealing is cheaper than reacting to leaks. Inspect regularly and reseal sections as they start to fail.
Leave it or put it right?
Leaving failed perimeter sealant also makes the eventual job bigger: edges get wet, render and timber deteriorate and frames can move. Early action keeps it simple. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.
The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.
What you get with us
- Commercial sealant work since 2005
- RAL and finish matching where the product range allows
- Standard and matched colours in many product ranges
- Old sealant cut out, never sealed over
See our cost guide or how we’re accredited.
Contractors’ notes for Canary Wharf
Canary Wharf 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, Canary Wharf 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.
Further education sites such as New City College, under half a mile north-east of Canary Wharf, are extended and refurbished from time to time, with mastic often programmed into the summer break. Extensions at sites like The London Independent Hospital, 1.6 miles north-west of Canary Wharf, typically sit beside working departments, and the mastic follows strict access rules. Hotels like London Marriott Hotel Canary Wharf (less than half a mile north-west of Canary Wharf) rarely close for long, so refurbishment mastic is phased floor by floor.
Canary Wharf is about 2 miles north-west of Greenwich, in Greater London. We send applicators to Canary Wharf for facade joints. 764 places across Greater London fall within our area, including Canary Wharf.
Commercial sites across E14, SE16 and E22 are covered. We cover commercial and managed buildings on Castor Lane, Cassilis Road and Dockyard Lane. Main routes into Canary Wharf include the A1261. We also cover London Docklands (1 mile east), Poplar (1 mile north-east), Heron Quays (1 mile south-west), Coldharbour (1 mile east) and Blackwall (1 mile east). Further afield, our area takes in London (3 miles west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (4 miles west) and Shoreditch (3 miles north-west).
What’s near Canary Wharf
Recent enquiries here include premises near Tower Hamlets College, Sir John McDougall Gardens and The Ledger Building pub. Canary Wharf has its own railway station: Canary Wharf station. Nearby you’ll also find The Pumphouse Educational Museum (0.8 miles west) and Surrey Quays Shopping Centre (1.4 miles south-west). Not far away are St. James's Park Lake and Tower Hill.
Surface by surface
Brick and stone facades
Brick and stone facades have perimeter and movement joints that need a compatible sealant. We avoid acetoxy silicone, which can stain some natural stone, and primers go on where specified.
Coping and flashing joints
Sometimes the coping or flashing itself has failed. Where the issue isn’t the sealant, we say so.