Facade Sealing contractors in Westbourne Green
Facade joint and window perimeter sealing on commercial buildings in Westbourne Green and across Greater London. CHAS accredited and fully insured, with a 12-month guarantee.
- Draughts around frames and panels
- Hard, chalky sealant that no longer flexes
- Patch repairs that keep failing
Facade sealing across Westbourne Green
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Facade sealing for commercial buildings in Westbourne Green
External joints face UV, rain, temperature swings and building movement all year. Life depends on movement, weathering, product choice and the quality of the original work. When it fails, the whole bead is cut away and the joint rebuilt. We work on perimeter joints where frames meet the structure, shopfront frames and cladding panel joints, and the failures we are asked to look at most are air leaks through failed facade joints and water coming in around window frames. Whoever orders the work in Westbourne Green, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.
Building sites in London tend to be tight: limited storage, booked deliveries and access shared with other trades. Mastic is typically one of the last trades on each elevation or floor, so we keep to the programme and the order of trades the site sets.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Westbourne Green (W2, W9, W11)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
What the job involves on each surface
Render and coated surfaces
Sealant can only hold as well as the render or paint beneath it. Loose coatings are cleaned back first, and we will mention any edges that need repair.
Perimeter joints at frames and structure
The joint around a framed system, where it meets the structure, needs sealant. Our work is that perimeter joint rather than the system it surrounds.
Cost factors for facade joints
Each job is priced on its own details. The things that drive the figure:
- Backing rod, priming and other preparation
- Quantities, in metres or numbers
- Phasing around occupants
- Site requirements such as inductions and permits
There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote and we’ll price your job on its own details.
What we need to price the job
A few photographs plus some basic facts will normally do. It helps to include:
- Whether an asbestos survey exists
- Where the site is, with the postcode
- What the building is and how it’s used
- Specification clauses that apply
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.
When it isn’t the sealant
Honesty saves time and money. New sealant won’t cure:
- Movement beyond what any sealant can handle
- Water getting in through cracked render or porous masonry
- Arranging specialist high-level access, which is planned with the client
If in doubt, call the office on 01277 525 020 or use the quote form and we will say what we think.
Where we work in Westbourne Green
- Perimeter joints where frames meet the structure
- Window and door perimeters
- Coping and flashing joints
- Cladding panel joints
- Shopfront frames
- Stone and brick facade joints
From enquiry to sign-off
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. With the paperwork done, the joints are worked through in the order agreed with your site contact. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.
- 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 the joint faces cleaned.
- Primer goes on where the product data asks for it.
- Backing rod is fitted and the new sealant gunned in and tooled.
- The finished joints are checked with you.
Preparing the site
- Clear stock, furniture or equipment away from the joints
- Arrange parking or a loading space
- Point out any areas we must not close
Getting a fixed quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. For a chat about it beforehand, phone 01277 525 020 or use the quote form.
Related advice
FAQs: Westbourne Green
Can you work at a site such as Stable Way Industrial Estate, by Westbourne Green?
Yes. Our area takes in Westbourne Green and its surroundings, with estates and business parks such as Stable Way Industrial Estate included. To start, just call the office on 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.
Could you schedule work at a campus like Brigham Young University London Centre for the vacation?
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.
Do you offer coloured sealant?
Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We will confirm the colours available for the specified product.
What’s the quickest route to a quote?
There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photographs and a postcode.
How long will the new sealant last?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
Will you quote for a small job?
Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.
Is it okay to overlay old mastic?
No. Fresh silicone won’t grip cured silicone, so the existing bead is removed entirely and the joint cleaned back to sound material. Nothing else gives a bond that lasts.
Sites and facades in and around Westbourne Green
Westbourne Green has a good number of hotels close by, all within 2 miles. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up. As part of Greater London, Westbourne Green is inside the ULEZ, which applies to every van on site. Add booked deliveries and tight storage, and the mastic package needs planning with the site team.
Projects at colleges like City of Westminster College (0.5 miles north of Westbourne Green) tend to run to term dates, so the mastic is planned tightly. Building work at universities like Brigham Young University London Centre (0.7 miles south of Westbourne Green) is often timed for the summer, mastic included.
Westbourne Green is about 2 miles north-east of Kensington, in Greater London. Westbourne Green sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. Our Greater London coverage takes in 764 places, from busy centres to rural villages.
We cover the W2, W9 and W11 postcode districts for facade joints. For a building on Salem Road, Talbot Road and Harrow Road or nearby, we can quote for facade joints. Westbourne Green sits on or close to the A404 and A4206, which helps when planning parking and deliveries for the job. If your building is just outside Westbourne Green, we cover Little Venice (1 mile east), Westbourne (1 mile south-west), Maida Vale (1 mile north), Paddington Green (1 mile east) and Paddington (1 mile east). Nearby towns on our patch include London (4 miles east), St Pancras (3 miles east), Shoreditch (5 miles east), Walthamstow (8 miles north-east), Hoxton (5 miles east) and Whitechapel (5 miles east).
Local landmarks in Westbourne Green
Recent enquiries here include premises near Maida Vale School, Emslie Horniman's Pleasance and Abdus Salam Library, among other places. You’ll also find The Bridge House (less than half a mile east) and Westminster Academy (under half a mile west). Westbourne Green’s nearest station is London Paddington station, roughly 0.5 miles south-east. Well-known places in the area include Greek Orthodox Cathedral Treasury Museum (0.6 miles south) and Paddington General Hospital (less than half a mile north-west). Green spaces nearby include The Long Water and Greville Place nature reserve.
After the work
Once the work is signed off, a little attention goes a long way:
- Inspect facade joints on a regular cycle
- Plan facade sealing alongside redecoration
- Clear debris that holds water against joints
- 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.
Check older buildings for asbestos before disturbing old mastic. Some older mastics contain it.
What we’re called out for in Westbourne Green
Sun, rain and temperature swings wear facade sealant down over the years. The bead hardens, chalks on the surface and loses the flexibility to follow the joint, then it splits or peels.
These are often picked up first by site or facilities staff:
- Gaps between rainscreen or cladding panels
- Previous reseals run over old sealant
- Draughts around frames and panels
- Facade joints cracked through the middle
New wings at hospitals like St Mary's Hospital, 0.6 miles east of Westbourne Green, bring long runs of window and panel joints to seal.
Comparing quotes
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Will RAMS and insurance details be available?
- Their plan for phasing and protecting the area
- Which product they’ll use, and why it suits the joint