Knightsbridge facade sealing
Facade sealing in Knightsbridge, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Leaks at window and door perimeters
- Unsightly perimeter sealant on a visible elevation
- Perimeter sealant that has split or peeled away
Need facade sealing in Knightsbridge?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
About our facade sealing in Knightsbridge
We are often asked to look at water coming in around frames. Very often the perimeter bead has cracked or lost its grip. If the evidence points away from the sealant, we say so before quoting. If you have cold air coming in at window perimeters and gaps between rainscreen or cladding panels, we can help, on shopfront frames, stone and brick facade joints and window and door perimeters alike. A specialist sealant contractor works differently from a general builder: on jobs in Knightsbridge, 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, so tidy, well-planned work matters.
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.
- Where
- Knightsbridge (SW1X, SW3, W1K)
- Region
- Greater London
- Cover
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Cost factors for facade joints
Quotes vary with the job. It mainly depends on:
- Which sealant the job calls for
- Joint width, depth and condition
- Distance, for remote addresses
- Whether old sealant has to be cut out first
Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
What to include in your enquiry
However big the job, these details speed things up:
- When you need the work done
- The type of building and who uses it
- Approximate linear metres or a joint schedule
- Clear photos of the problem areas
Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. Smaller jobs need nothing more than photographs and a few notes.
After the work
A few simple habits keep the new joints working:
- Avoid patch repairs on failed facade joints
- Brief window cleaners about newly sealed joints
- Inspect facade joints on a regular cycle
- Report water ingress at frames as soon as it shows
Anything drilled through a facade joint breaks the seal. Ask the installer to reseal it properly using a matching sealant.
In pre-2000 buildings, check the asbestos register before old sealant is cut out. Some older mastics contain it.
What the job involves on each surface
Coping and flashing joints
Coping and flashing joints are included where sealant is the specified fix. These joints take full exposure to weather and need a durable external sealant.
Brick and stone facades
On masonry, the sealant has to suit a porous, textured surface. Neutral-cure products are used because acetoxy types can mark some stone, and primers go on where specified.
Questions about Knightsbridge
Can you work in a London building with booked loading and goods-lift slots?
Yes, most London buildings have access rules of some kind, and we plan around them. Send the building rules and access times with your enquiry.
Can you work around term dates at a campus such as Royal College of Art?
Yes. We plan campus work around teaching, exams and residence turnarounds. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance.
How long before the joints can be used?
We will confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.
How long does a job like this take?
It depends on the scope, but the work normally takes longer on a full elevation than on a handful of window perimeters, and it always depends on dry weather. For bigger or phased jobs, we will set out a timescale with the quote.
What about RAMS and site documents?
Each site asks for different documents, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.
Can you work on upper floors?
Access is planned with you before we quote. Tell us about access: existing scaffold, what you’re arranging and any site restrictions, and we will price the work around it.
On site: what to expect
Before we leave any area, we remove the tape, clean down and inspect every joint with your site contact. If an area should be left alone while the sealant cures, we say how long and put signs out. For a job in Knightsbridge, access comes first. Send the building rules and access times with your enquiry.
- Photos, drawings or a visit tell us about the joints and the access.
- We confirm the joint type, movement and the specified product.
- Failed beads are removed in full and both faces cleaned back.
- Primer goes on where the product data asks for it.
- Rod goes in to fix the depth, then the joint is sealed and tooled.
- We go over the completed work with you before leaving.
Before we start on site
- Tell us your opening times and when work is allowed
- Confirm the product named in the specification
- Point out any areas we must not close
Getting a fixed quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, ring 01277 525 020 or email the details over.
Related advice
Facades, frames and programmes in Knightsbridge
Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in Knightsbridge. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for. A good number of hotels sit less than 2 miles from Knightsbridge. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades.
Projects at colleges like Westminster Kingsway College (to the east of Knightsbridge) tend to run to term dates, so the mastic is planned tightly. Building work at universities like Royal College of Art, 0.7 miles west of Knightsbridge, is often timed for the summer, mastic included. On a healthcare site such as The Royal Marsden Hospital (0.9 miles south-west of Knightsbridge), new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.
Knightsbridge is about 1 mile north of Brompton, in Greater London. Commercial clients in Knightsbridge use us for work on facade joints. We work across 764 places in Greater London.
Commercial sites across SW1X, SW3 and W1K are covered for facade joints. We cover commercial and managed buildings on Hans Road, Park Lane and Cadogan Lane. Main routes into Knightsbridge include the A315 and A4202, useful when we plan access and materials. Close to Knightsbridge, our area also takes in Tyburn (1 mile north), Mayfair (1 mile north-east), Hyde Park Estate (1 mile north), Connaught Village (1 mile north) and City of Westminster (1 mile north-east). Nearby towns on our patch include London (3 miles east), St Pancras (3 miles north-east), Shoreditch (4 miles north-east), Walthamstow (8 miles north-east), Hoxton (4 miles north-east) and Whitechapel (4 miles east).
What’s near Knightsbridge
We work on buildings around Saint Thomas More Language College, St Joseph's Catholic Primary School and Paxtons Head pub. Nearby too are Natural History Museum Library and Archives (0.7 miles south-west) and Royal Parks of London (0.5 miles north). The closest station to Knightsbridge is London Victoria station, about 0.9 miles south-east of the centre. Well-known places in the area include London Lock Hospital (0.6 miles east) and Westminster Synagogue Czech Memorial Scrolls Museum (less than half a mile west). Open spaces near Knightsbridge include Campden Hill and Greville Place nature reserve.
Also near Knightsbridge
What else we do in Knightsbridge
When to bring in a specialist
Certain joints really need a specialist: 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.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Building owners, agents and FMs in Knightsbridge
As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
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, plus a 12-month guarantee.