Mastic contractors in Kentish Town
Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Kentish Town. Send details for a fixed quote.
- Oversized or tapered gaps around new frames
- Inconsistent sealant finishes from plot to plot
- Missed perimeter joints on a new elevation
Construction mastic near Kentish Town
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Construction mastic in Kentish Town
Refurbishment work needs a slightly different approach from new build. Existing joints have to be stripped back to sound faces, because fresh sealant can’t key into cured silicone. After that, the joints are prepared and sealed to the specification. Site teams most often ask us about existing joints on a refurb that need cutting out and resealing and early adhesion failures on new external joints, on brick and block movement joints, window and door perimeters and floor and skirting junctions. Most enquiries from Kentish Town start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.
Building sites in London tend to be tight: limited storage, booked deliveries and access shared with other trades. Mastic is usually one of the last trades on each elevation or floor, so we keep to the programme and the order of trades the site sets.
Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Place
- Kentish Town (NW5, NW1, NW3)
- Wider area
- Greater London
- Guarantee
- 12 months on every job
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
What the job involves on each surface
Snagging before handover
Snags typically come from damage by following trades, missed joints or poor earlier work. Snagging can be included or priced separately.
Internal decorators’ caulk
Caulk is easy to apply badly. A neat, consistent caulk line makes the decorators’ job quicker and reduces snags.
Also near Kentish Town
What else we do in Kentish Town
FAQs: Kentish Town
Can you work around term dates at a campus such as University of the Arts London?
Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we will confirm them alongside the quote.
Can you work at a site such as Regis Road Business Park, by Kentish Town?
Yes, sites like Regis Road Business Park are within our area, along with the rest of Kentish Town. Photos and a short description are enough for a first look.
Can staff carry on working while you’re here?
Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.
What guarantee comes with a mastic package?
It’s backed by our 12-month guarantee on the workmanship. Protecting sealed areas from following trades helps avoid damage.
How do you deal with asbestos in old sealant?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.
Can weather delay the job?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
When can the area be used after sealing?
We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.
On site: what to expect
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. On site, the work normally takes whatever the programme allows, since the work follows the trades as areas are released, and we clear our waste as we work. All of Greater London is in the ULEZ, and kerbside space in Kentish Town can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.
- Drawings, specification and programme come to us.
- Quantities are measured and a fixed price returned.
- We agree with the site team which areas come first.
- Each area is sealed when it’s released.
- Every joint is cleaned, set to depth and sealed with the specified product.
- After snagging, the work is handed over under our 12-month guarantee.
What we need from you
- Tell us which areas need to stay in use
- Point out parking and an unloading spot
- Tell staff and tenants when we will be in
Request a 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 send photos by email.
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Common problems we fix in Kentish Town
On a live site, contamination is the biggest threat to a new joint. Plaster dust, release agents, protective film residue and damp all stop sealant bonding so faces get cleaned, and primer goes on wherever the maker specifies, even on new work.
Look out for the following:
- Perimeter gaps outside the sealant’s range
- External joints sealed in damp or cold conditions that are now failing
- Different trades sealing to different standards
- Missed perimeter joints on a new elevation
Building work at universities like University of the Arts London (to the south-east of Kentish Town) is often timed for the summer, mastic included.
Comparing quotes
- Proof of insurance
- How they’ll work around occupants
- What the guarantee covers, and for how long
- Will RAMS and insurance details be available?
When to bring in a specialist
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
Maintenance after handover
For the best life from the joints:
- Keep scrapers and abrasive pads off new beads
- Stick to the specified sealant rather than a generic substitute
- Note which sealant went where at handover
- Protect sealed areas from following trades
After we’ve sealed an area, it helps to keep other trades from damaging the joints. New beads should be left to cure before cleaning or decorating nearby, and that time depends on the product, temperature and joint depth.
External joints sealed in poor weather are a common cause of early failure. Holding off until conditions suit avoids callbacks.
Building and refurbishing in Kentish Town
The ULEZ covers the whole of Greater London, Kentish Town included, so site vehicles need to meet its standards or pay the daily charge. Deliveries are booked and storage is tight, so mastic materials come in as needed. The area within 2 miles of Kentish Town holds a good number of hotels. When hotels extend or refit, the work is typically squeezed between peak periods, mastic included.
On a healthcare site such as St. Pancras Hospital (0.9 miles south-east of Kentish Town), new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully. Further education sites such as Working Men’s College (0.6 miles north-east of Kentish Town) are extended and refurbished from time to time, with mastic often programmed into the summer break.
Kentish Town is about 2 miles east of Hampstead, in Greater London. If you are looking for construction mastic in Kentish Town, we can help, as we do across Greater London. Kentish Town is one of 764 places in Greater London on our list for mastic packages.
If you need construction mastic in NW5, NW1 and NW3, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Buildings on Eton Road, Oval Road and Regal Lane are within our area. If your building is just outside Kentish Town, we cover Chalk Farm (1 mile west), Camden Town (1 mile south-east), Gospel Oak (1 mile north), Primrose Hill (1 mile south-west) and Agar Town (1 mile south-east). Further afield, our area takes in London (4 miles south-east), Kensington (4 miles south-west), Shoreditch (3 miles south-east), Walthamstow (6 miles north-east), Hoxton (3 miles east) and Whitechapel (4 miles south-east).
What’s near Kentish Town
We work on buildings around Primrose Hill, Haverstock School and North Bridge House School, among other places. Nearby too are The Hawley Arms (under half a mile south) and Vaughan Williams Memorial Library (0.5 miles south). Kentish Town has its own railway station: Kentish Town West station. Nearby you’ll also find O2 Centre (1.6 miles west) and Montfichet's Tower (2.9 miles south-east). Green spaces nearby include The Long Water and Primrose Hill.
How the quote is worked out
Your fixed quote is built from the real scope. It takes account of:
- How much there is to seal
- Travel to remote or island sites
- How much existing material needs removing
- Backing rod, priming and other preparation
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Details that help us quote
It doesn’t need to be a full survey. These details are enough to start:
- The type of building and who uses it
- Approximate linear metres or a joint schedule
- The postcode of the building
- Specification clauses that apply
Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. If you have questions first, call 01277 525 020 or email the details over.