Mastic Sealing in Cricklewood
We carry out mastic sealing for building owners, managing agents and housing associations in Cricklewood and the surrounding area. Send details for a fixed quote.
- Damp patches beside frames
- Draughts at frames across a block
- Communal area joints that look neglected
Mastic sealing in Cricklewood
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
What we can’t put right
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Leaks through the frame itself rather than the perimeter
- Leaks from above rather than through a joint
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
If you are not sure, just call 01277 525 020 or email drawings and photos and we will give you a straight answer before you book.
Where we work in Cricklewood
- Communal entrances and stairwells
- Communal kitchens and washrooms
- External wall and movement joints
- Balcony and threshold joints
- Shopfronts below residential blocks
- Window and door perimeters on blocks
Mastic sealing in Cricklewood
Most buildings come with mastic joints nobody has looked at since handover and it slowly wears out: window perimeters, door frames, external joints and communal junctions all rely on it. Once it cracks, hardens or comes away, draughts and water find a way in along with complaints. If you have damaged joints in communal entrances and corridors and a mix of products and colours from past repairs, we can help. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Cricklewood it comes down to the same thing: the right product in a properly prepared joint.
For managing agents in Cricklewood, 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.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.
- Where
- Cricklewood (NW2, NW6, NW10)
- Region
- Greater London
- Guarantee
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
FAQs: Cricklewood
Do you work in occupied care homes around Cricklewood?
Yes, with the manager deciding the order and timing of rooms. Noise and disruption are kept to a minimum.
We manage a building near Cricklewood station. Can you help?
Yes. Blocks of any size are within what we do. We work to your notice and access arrangements.
Do you guarantee the mastic work?
Our workmanship carries a 12-month guarantee and we hold public liability insurance.
How long does a typical visit take?
It depends on the scope, though a typical visit typically 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.
Is asbestos a concern with old mastic?
Asbestos removal isn’t part of our work. If old sealant is suspected, work stops until it’s tested in line with the dutyholder’s asbestos management.
Which sealant will you use?
The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Can you seal joints high up on a block?
Every block is different. We agree access with you at quote stage so the fixed quote reflects it.
Why deal with it now?
Sealing over failed mastic looks tidy for a while. It won’t grip the old sealant and soon comes away. Cutting out and resealing properly does it once. In a London building, a failed joint rarely affects only one party. Putting it right early is less disruptive than dealing with the consequences.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.
Why choose Mastic Doctor in Cricklewood
- Fully insured
- Colours confirmed for the specified product
- Joints cleaned back to sound surfaces
- 12 months’ guarantee on every job
Take a look at how commercial sealant jobs are priced and our accreditations.
Looking after the joints
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:
- Keep a record of when each building was resealed
- Share your contractor requirements early
- Include mastic in your cyclical inspections
- Avoid piecemeal callouts where you can
Encourage occupiers to report water or draughts at frames. Early reports catch failures before damage spreads.
One failed perimeter normally means others on the same building are close so a single failure is a sign to check the rest. A planned reseal saves repeated visits.
Cost factors for mastic joints
The price varies from site to site. Expect it to depend on:
- Whether the work must be split into stages
- Removal of failed or old sealant
- Location, for remote and island sites
- Induction, permit and paperwork requirements
The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site requirements come into it too.
What we need to price the job
The more we know, the firmer the quote. When you get in touch, include:
- Drawings or a marked-up plan, if available
- Any dates the work must fit around
- What the building is and how it’s used
- Anything awkward about access or site hours
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call 01277 525 020 or email us with what you know.
Common problems we fix in Cricklewood
Many failed joints were sealed without backing rod, so the mastic is glued to the joint bottom too. It can’t stretch properly and splits as the building moves.
Things that typically lead to an enquiry:
- Complaints coming in block by block
- Window mastic that has split and shrunk
- A mix of products and colours from past repairs
- Open joints in brickwork or panels
Site managers at schools like Anson Primary School can fit frame mastic into the summer works.
Before you book anyone
- Health and safety accreditation such as CHAS
- Will failed sealant be removed rather than covered?
- Do they follow the manufacturer’s priming guidance?
- How joint depth will be controlled
Block-wide mastic in Cricklewood
There are three care or nursing homes within about 2 miles of Cricklewood. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents. Blocks in London are usually run by managing agents, landlords or housing associations, with residents to notify and access to arrange. We work to your notice and access plan.
Blocks of flats and mixed-use buildings often cluster around stations such as Cricklewood station (less than half a mile north-east of Cricklewood) and their window and balcony mastic tends to age at the same rate across a building. If you are responsible for a building such as St Gabriel's Church, frame and door mastic needs the same attention as any other property.
Cricklewood is about 1 mile north-west of Kilburn, in Greater London. We cover Cricklewood, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Cricklewood is one of 764 places we cover in Greater London. Sites around London have their own page, about 7 miles away.
Commercial sites across NW2, NW6 and NW10 are covered for mastic joints. If your site is on Ivy Road, Walm Lane and Dean Road or close by, we can quote for mastic joints. Main routes into Cricklewood include the A407. Close to Cricklewood, our area also takes in Brondesbury (1 mile south-east), Willesden (1 mile south-west), Dollis Hill (1 mile north-west), Willesden Green (1 mile south-west) and Neasden (1 mile west). A short drive away, we cover London (7 miles south-east), City of Westminster (4 miles south-east), Marylebone (4 miles south-east), Kensington (4 miles south), St Pancras (5 miles south-east) and Shoreditch (6 miles east).
Landmarks near Cricklewood
Locally, jobs take us to sites close to Hampstead School, The Crown Public House and Gladstone Park. Cricklewood has its own railway station: Cricklewood station. A little further out are St Andrew's Hospital (0.8 miles north-west) and Brent Museum and Archives (0.7 miles south-west). Green spaces nearby include Parliament Hill and Westbere Copse.
Places near Cricklewood
More services for Cricklewood
From enquiry to sign-off
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Most London premises stay occupied while we are on site, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
Preparing the site
- Share your working hours and any access restrictions
- For older buildings, check the asbestos register before work
- Warn occupants and staff about the work
Request a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photos and a few notes.