Facade Sealing in Northwick Park
Commercial sealant work in Northwick Park for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.
- Unsightly perimeter sealant on a visible elevation
- Hard, chalky sealant that no longer flexes
- Patch repairs that keep failing
Facade sealing near Northwick Park
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 Northwick Park
We don’t install glazing systems or replace glass. What we seal are the joints around them: perimeter joints where frames meet the structure, panel joints and window perimeters with products suited to facade or glazing perimeter joints. If you have weathered facade joints that have lost their grip and patch repairs that keep failing, we can put it right. Facilities teams, main contractors and managing agents in Northwick Park tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
The ULEZ covers the whole of Greater London, so contractors’ vehicles on a job in Northwick Park must meet its standards or pay the daily charge. Alongside that, sites normally need booked deliveries and a plan for where materials go.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Where
- Northwick Park (HA1, HA3, HA0)
- Region
- Greater London
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Surface by surface
Coping and flashing joints
Sometimes the coping or flashing itself has failed. Where the issue isn’t the sealant, we say so.
Brick and stone facades
Stone can absorb plasticisers from the wrong sealant. We use a product suitable for the stone where the specification names one, and mask the edges carefully.
Doing it in-house
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Certain joints really need a specialist: 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.
Quoting for work in Northwick Park
Quotes vary with the job. Expect it to depend on:
- Whether old sealant has to be cut out first
- Which sealant the job calls for
- Phasing around occupants
- Travel to remote or island sites
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.
Before you send an enquiry
A good diagnosis starts with the right details. Tell us:
- Any specification or named product
- Access details, including height
- Where the site is, with the postcode
- The asbestos register, for older buildings
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 send photos by email.
Your questions answered
Could you schedule work at a campus like Westminster University for the vacation?
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’ll confirm them alongside the quote.
Do you take on work at healthcare sites like Northwick Park Hospital?
Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.
How soon can the area be used again?
We will confirm how long the chosen product needs to cure, and sign any area that should be left alone.
Do you replace failed glazing units?
No. That work needs a glazing specialist. We reseal window perimeters, panel joints and frame-to-structure perimeters on commercial buildings.
Will your applicators have CSCS cards?
Yes. Our applicators hold CSCS cards.
What hours do you work?
Mention the site’s hours and access windows in your enquiry, and we’ll plan around them. You can reach the office between 8am and 5pm, Monday to Friday.
Do we need an asbestos check before resealing?
For older buildings, yes, check before work starts. The duty to manage asbestos sits with the dutyholder, so ask for it before we start. If asbestos is suspected, work stops until it is tested.
Our process
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. For a job in Northwick Park, access comes first. Give us the hours we can be on site and we’ll schedule to suit.
- 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 is applied where the maker specifies it.
- Rod goes in to fix the depth, then the joint is sealed and tooled.
- The finished joints are checked with you.
Getting the site ready
- For older buildings, check the asbestos register before work
- Let us know about inductions and permits
- Tell staff and tenants when we’ll be in
Get a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.
Read more
Sites and facades in and around Northwick Park
The area within 2 miles of Northwick Park holds plenty of hotels. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight. Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in Northwick Park. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for.
Further education sites such as Harrow College (to the north-west of Northwick Park) are extended and refurbished from time to time, with mastic often programmed into the summer break. For a contractor at a hotel such as The Gayton Hotel (less than half a mile north of Northwick Park), the mastic often has to be finished before a reopening date. Building work at universities like Westminster University (to the north-east of Northwick Park) is often timed for the summer, mastic included.
Northwick Park is about 1 mile south-west of Kenton, in Greater London. Businesses, contractors and managing agents in Northwick Park use us for work on facade joints. Our Greater London coverage takes in 764 places, from busy centres to rural villages. Sites around London have their own page, about 11 miles away.
Work on facade joints is covered throughout HA1, HA3 and HA0. We cover commercial and managed buildings on Lyon Road, Manor Road and Gayton Road and the roads nearby. Main routes into Northwick Park include the A404. Just outside Northwick Park, we also work in Greenhill (1 mile north-west), Harrow on the Hill (1 mile south-west), South Kenton (1 mile east), Kenton (1 mile north-east) and Harrow (1 mile west). A short drive away, we cover London (11 miles south-east), City of Westminster (9 miles south-east), Marylebone (9 miles south-east), Kensington (7 miles south-east), St Pancras (10 miles east) and Shoreditch (11 miles east).
Landmarks near Northwick Park
We work on buildings around St Anselm's Catholic Primary School, Orley Farm School and Preston Park, among other places. The nearest railway station is Kenton station, about 0.6 miles north-east. Well-known places in the area include Northwick Park Hospital (under half a mile north-east) and Kodak Museum (1.5 miles north-west). Not far away are Masons Field and Northala Fields.
Honest limits
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Render or concrete edges that have broken away
- Joints too narrow for the movement they take, which need redesign
- Replacing glass or failed glazing units
If in doubt, give us a call on 01277 525 020 or email us and we’ll say what we think.
Joints and surfaces we work on
- Coping and flashing joints
- Window and door perimeters
- Stone and brick facade joints
- Shopfront frames
- Cladding panel joints
- Perimeter joints where frames meet the structure
Aftercare for building managers
Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:
- Ask about asbestos in pre-2000 mastic
- Insist on a full cut-out when joints are renewed
- Keep sills, gutters and drainage paths clear
- Keep the sealant details on the building file
Following storms, look inside for damp or staining near frames. Catching a new leak early keeps the repair small.
Tie resealing in with redecoration, cladding repairs or other access. One set-up for several trades saves money and limits disruption.