Mastic sealant contractors in Kensal Green
Mastic sealing for building owners, managing agents and housing associations throughout Kensal Green and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Window mastic that has split and shrunk
- Occupiers reporting cold air round windows
- A mix of products and colours from past repairs
Mastic sealing across Kensal Green
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Mastic sealing for commercial buildings in Kensal Green
Older blocks and commercial buildings can have mastic that contains asbestos. Before we disturb it, we ask to see the asbestos register or survey, and work stops for testing if there’s any doubt. Removing asbestos-containing material isn’t something we do. If you are dealing with communal area joints that look neglected and complaints coming in block by block, we can help, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Kensal Green it comes down to the same thing: the right product in a properly prepared joint.
For managing agents in Kensal Green, resident access, notice periods and the building’s rules shape the job. We work to the agent’s notice and access plan, so residents know what’s happening.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Where
- Kensal Green (NW10, W10, NW6)
- Region
- Greater London
- Guarantee
- A 12-month guarantee
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
What we are called out for in Kensal Green
UV and rain age external sealant. It stiffens, stops stretching and cracks most of all on the sunniest and most exposed elevations.
Things that normally lead to an enquiry:
- Cracked, hardened mastic round windows on a block
- Failed external movement joints
- Estate-wide sealant that is simply worn out
- Occupiers reporting cold air round windows
If you look after a block within reach of Kensal Green station, which lies east of Kensal Green, frame and balcony mastic can be renewed on one programme.
Before you book anyone
- Whether old or failed sealant will be cut out, not overlaid
- Will CSCS-carded applicators be on site?
- The named product and why it was chosen
- Their pre-qualification and accreditations
Why deal with it now?
Adding sealant to cyclical maintenance is an easy win. Waiting until leaks appear means working under pressure with less control over timing. Getting scaffold, permits or access booked in Kensal Green takes effort, so it makes sense to deal with every failing joint while access is in place.
Pricing mastic joints depends on how many there are, their condition and the access, plus any specification you’re working to. Ask us for a fixed quote.
What you get with us
- 12-month guarantee on workmanship
- One contact handling all your sites
- A range of standard colours, depending on the product
- Products installed to the manufacturer’s instructions
When it isn’t the sealant
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:
- Glazing that needs replacing
- Leaks through the frame itself rather than the perimeter
- Roof leaks, gutters or failed flashings that aren’t sealant joints
If you are not sure, just phone 01277 525 020 or email the details over and we’ll give you a straight answer before you book.
Surfaces we seal
- External wall and movement joints
- Shopfronts below residential blocks
- Balcony and threshold joints
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Communal entrances and stairwells
Questions about Kensal Green
Will you take on a block within reach of Kensal Green station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. We work to your notice and access arrangements.
Can you work at a site such as Mitre Bridge Industrial Estate, by Kensal Green?
Yes. We cover Kensal Green and the area around it, including industrial estates, business parks and retail parks such as Mitre Bridge Industrial Estate. To start, just ring 01277 525 020 or email the details over with the unit, the joints involved and your access times.
What guarantee do you give on resealing?
There is a 12-month guarantee on our workmanship, backed by public liability insurance.
What if the old mastic contains asbestos?
In older buildings, old mastic can contain asbestos. We check the asbestos register or survey before disturbing it and suspect material is tested first.
Do you supply RAMS and insurance details?
We are CHAS accredited, a Constructionline member and carry public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
How do you handle work on occupied blocks?
Residents and tenants carry on as normal. If any flats or units need access, we will tell you in advance so you can arrange it with occupiers.
How many days will you need on site?
It depends on the scope, though a typical visit normally takes a day or two for a single block, longer for an estate programme. Larger or phased jobs take longer, and we will give you a timescale with the quote.
What the job involves on each surface
Window and door perimeters on blocks
We normally work through a block’s windows in a planned order. Access is agreed with you before the quote is fixed.
Planned maintenance
How long mastic lasts depends on exposure, movement and the product used. Regular inspection is the best way to plan resealing.
Towns and villages near Kensal Green
Also in Kensal Green
Commercial clients in Kensal Green
Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, and each stage is agreed with your contact.
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sites in Kensal Green can sit alongside others in a wider programme across Greater London.
Diagnose, treat, sign off
Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. For a job in Kensal Green, access comes first: 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.
- First comes a look at the joints and, for older buildings, the asbestos records.
- A fixed quote covers the joints, products and order of work.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
What we need from you
- Explain the parking and delivery arrangements
- Tell staff and tenants when we’ll be in
- Send any specification or drawings in advance
Quotes
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.
Related advice
Looking after buildings in and around Kensal Green
In London, mastic work on a block goes through the managing agent or landlord, with notice to residents. Our programme follows the access you agree with residents.
For owners of several units at places like Mitre Bridge Industrial Estate, 0.5 miles south-west of Kensal Green, one programme can deal with frame and external mastic across the lot. Site managers at schools like Princess Frederica CofE Primary School can fit frame mastic into the summer works.
Kensal Green is about 1 mile south-west of Kilburn, in Greater London. Across the NW10 postcode area, 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. There’s a separate page for London, roughly 6 miles from Kensal Green.
Anyone looking for mastic sealing in NW10, W10 and NW6 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include Waldo Road, Hazel Road and Hiley Road. If your building is just outside Kensal Green, we cover Kensal Rise (1 mile east), College Park (1 mile west), North Kensington (1 mile south-east), Willesden Green (1 mile north) and Kensal Town (1 mile south-east). Further afield, our area takes in London (6 miles east), City of Westminster (3 miles east), Marylebone (3 miles east), St Pancras (5 miles east), Shoreditch (6 miles east) and Walthamstow (9 miles north-east).
Landmarks near Kensal Green
Locally, jobs take us to sites close to Little Wormwood Scrubs, Queens Park Community School and The Masons Arms and the streets around them. There’s a railway station in Kensal Green itself: Kensal Green station. Well-known places in the area include Westfield London (1.6 miles south) and Princess Louise Hospital (0.7 miles south). Green spaces nearby include Greville Place nature reserve and The Long Water.