Facade and window perimeter sealing in South Kensington, Greater London
Commercial sealant work in South Kensington for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.
- Old perimeter mastic that has dried out
- Previous reseals run over old sealant
- Failed sealant on precast panel joints
Need facade sealing in South Kensington?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Facade sealing in South Kensington
Our facade sealing work covers external facade joints, window and door perimeters, cladding panel joints and the perimeter joints where frames meet the structure on offices, blocks and industrial units. Coping and flashing joints are included where sealant is the specified fix. We work on perimeter joints where frames meet the structure, coping and flashing joints and shopfront frames, and the usual reasons a site gets in touch are air leaks through failed facade joints and staining on stone next to old sealant. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in South Kensington it comes down to the same thing: the right product in a properly prepared joint.
Around South Kensington, as across London, much of the work is refurbishing existing buildings as well as building new ones. Replacement windows, recladding and fit-outs leave perimeter and facade joints to seal, often next to people still using the building, so tidy, well-planned work matters.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.
- Place
- South Kensington (SW3, SW7, SW10)
- Wider area
- Greater London
- Guarantee
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
What sets the cost
What shapes the price:
- Quantities, in metres or numbers
- Whether the work must be split into stages
- Whether old sealant has to be cut out first
- Travel to remote or island sites
A quote for facade joints depends on how many there are, their condition and the access, and any specification that applies. Ask us for a fixed quote.
Details that help us quote
For an accurate fixed quote, we need a clear picture of the site. Useful things to include:
- Where the site is, with the postcode
- Drawings or a marked-up plan, if available
- What the building is and how it’s used
- Your programme or deadline
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photos and a few notes.
For managing agents and facilities managers
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
How a job runs
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. Planning a London job such as one in South Kensington starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.
- Photos, drawings or a visit tell us about the joints and the access.
- Product choice follows the joint’s movement and substrate.
- The existing bead comes out in full and the joint faces cleaned.
- 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.
What we need from you
- Move anything stored against the joints
- Tell us your opening times and when work is allowed
- Share the asbestos register for older buildings
Get a fixed quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, speak to us on 01277 525 020 or email a schedule or drawings.
Advice
Nearby places to South Kensington
Other services in South Kensington
Doing it in-house
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
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. In South Kensington, each extra visit means more notices, permits and disruption, so a proper job first time, with the old sealant fully removed, is worth it.
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.
What you get with us
- Joints cleaned back to sound surfaces
- 12-month guarantee on workmanship
- Colours confirmed for the specified product
- Products installed to the manufacturer’s instructions
Contractors’ notes for South Kensington
Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in South Kensington. Delivery slots and scarce storage shape how and when the mastic goes in. The area within 2 miles of South Kensington holds a good number of hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
Recladding or extending a unit at a site like Brompton Cross District Shopping Centre. (to the north-east of South Kensington) brings panel joints and frame perimeters into the programme. For contractors on a campus like Faculty of Medicine (Imperial College London), under half a mile to the east of South Kensington, facade and perimeter sealing has to fit around students and term dates.
South Kensington is about 1 mile south-east of Kensington, in Greater London. Anywhere in SW3, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Our Greater London coverage takes in 764 places, large and small.
Work on facade joints is covered throughout SW3, SW7 and SW10, whatever the building. Buildings on King's Road, Fulham Road and Museum Lane are within our area for facade joints. South Kensington sits on or close to the A3217, useful when we plan access and materials. Sites close to South Kensington are covered too, including Little Chelsea (1 mile south), Chelsea (1 mile east), Brompton (1 mile north-east), World's End (1 mile south) and Earl's Court (1 mile west). Nearby towns on our patch include London (4 miles east), St Pancras (4 miles north-east), Shoreditch (5 miles north-east), Walthamstow (9 miles north-east), Hoxton (5 miles north-east) and Whitechapel (5 miles east).
Near you in South Kensington
In South Kensington, that means premises near London School of Dramatic Art, Burton’s Court and Anglesea Arms. Nearby too are Natural History Museum Library and Archives (less than half a mile north) and Collingham College (0.5 miles west). For rail, the closest station is West Brompton station, roughly 0.8 miles west. Other landmarks nearby include Victoria and Albert Museum Spiral (under half a mile north) and Baynard's Castle (3.6 miles north-east). Not far away are Serpentine and Campden Hill.
Signs you need facade sealing in South Kensington
Adhesive failure, where the sealant peels away from one face, usually comes from poor preparation. Dust, old sealant residue, damp or a missing primer stop it bonding properly.
Any of the following is a good reason to get the joints checked over:
- Air leaks through failed facade joints
- Unsightly perimeter sealant on a visible elevation
- Sealant pulling away from frames or panels
- Weathered facade joints that have lost their grip
For contractors at a college like St Mellitus Theological College (0.5 miles west of South Kensington), perimeters and internal sealant are timed for the holidays.
Questions to ask before you book
- What the guarantee covers, and for how long
- How the joint faces will be prepared and primed
- Is the sealant right for the movement and the substrate?
- How joint depth will be controlled
South Kensington: questions and answers
Can you work on a hospital site such as The Royal Marsden Hospital?
Yes, hospitals are one of the sectors we cover. Each area is agreed with the ward or department and the estates team in advance.
Can work at a site such as Faculty of Medicine (Imperial College London) fit around teaching?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Let us know which documents your site asks for, and we will confirm them alongside the quote.
Is South Kensington in your area?
Yes. South Kensington is in our area and the rest of Greater London, within our coverage of Greater London, South East England and Scotland. To discuss a job, call 01277 525 020 or email us.
Which sealant do you use on facades?
Low-modulus, neutral-cure silicone suits many facade and perimeter joints. Hybrid or MS polymer, polyurethane and polysulphide sealants suit others.
Are your applicators CSCS-carded?
Yes. Our applicators hold CSCS cards.
Do you replace failed glazing units?
No. That work needs a glazing specialist. We reseal window perimeters, panel joints and frame-to-structure perimeters across the facade.
Do you take on small jobs?
Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.