Kentish Town mastic sealing
Mastic sealing for building owners, managing agents and housing associations across Kentish Town, by CSCS-carded applicators. CHAS accredited and fully insured.
- A mix of products and colours from past repairs
- No planned programme for sealant
- Water getting in round frames after rain
Need mastic sealing in Kentish Town?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
From enquiry to sign-off
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and the sealant is tooled off neatly. 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.
- Each block or building is walked and the failed joints recorded with the likely cause.
- We send a fixed quote that sets out the joints, the products and the programme.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- 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.
- Each building is checked on completion and the work carries our 12-month guarantee.
What we need from you
- Let us know about inductions and permits
- Tell us which areas need to stay in use
- Move anything stored against the joints
Get a fixed quote
A good quote starts with a clear picture: 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.
Related advice
How we handle mastic sealing in Kentish Town
Blocks are lived in, so access and disruption have to be thought through. The sequence, the areas and the dates are settled with you, giving you what you need to notify residents. Communal entrances and stairs stay usable while we work. If you have damp patches beside frames and mastic failing across several blocks on an estate, we can help. One point of contact handles commercial sealant work in Kentish Town from the first photos to the final walk-round, for single jobs and planned programmes alike.
In a London area such as Kentish Town, many buildings are blocks of flats or mixed-use buildings run by managing agents, landlords or housing associations. Window and door perimeters, balcony joints and communal areas all have mastic that ages together across a building, which is why block-wide programmes make sense.
Our workmanship is guaranteed for 12 months, wherever the site is. If our installation lets you down in that time, we return and fix it.
- Where
- Kentish Town (NW5, NW1, NW3)
- Region
- Greater London
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
When it isn’t the sealant
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Asbestos-containing sealant, which we don’t remove
- Misted or failed double-glazed units
- Roof leaks, gutters or failed flashings that aren’t sealant joints
If in doubt, ring 01277 525 020 or email a schedule or drawings and we will say what we think.
What we seal
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Balcony and threshold joints
- Shopfronts below residential blocks
- External wall and movement joints
Looking after the joints
Keep the joints in good shape with a few simple steps:
- Make it easy for occupiers to report draughts
- Group repairs into a planned programme
- Share your contractor requirements early
- Check sealant joints during planned building inspections
Where a paintable product was specified, it can be painted after curing. Non-paintable silicone shouldn’t be painted over unless told otherwise.
Budgets are easier to plan when sealant is part of planned maintenance. A programme can start with the worst buildings so spending is spread.
When to call us in Kentish Town
Poor preparation explains many failed joints. Without clean, sound faces and a primer where the product needs one, the bead peels off one side.
Any of the following is a good reason to get the joints checked over:
- Estate-wide sealant that is simply worn out
- Leaks at window and door perimeters
- No planned programme for sealant
- Occupiers reporting cold air round windows
Student blocks close to universities like University of the Arts London, 1.1 miles to the south-east of Kentish Town, are easiest to work on between tenancies.
Comparing quotes
- Are they CHAS accredited or on Constructionline?
- Which product they’ll use, and why it suits the joint
- Do they follow the manufacturer’s priming guidance?
- Their plan for phasing and protecting the area
Mastic sealing around Kentish Town: what changes locally
Kentish Town has three care or nursing homes no more than 2 miles away. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents. In London, mastic work on a block goes through the managing agent or landlord, with notice to residents. We work to your notice and access plan.
If your remit includes a building such as Holy Trinity and Saint Silas CofE Primary School, frame and door mastic can be programmed for the holidays. If you are responsible for a building such as Church of the Holy Trinity with St Barnabas, frame and door mastic needs the same attention as any other property.
Kentish Town is about 2 miles east of Hampstead, in Greater London. We send applicators to Kentish Town for mastic joints. 764 places across Greater London fall within our area, including Kentish Town.
Postcode districts covered here: NW5, NW1 and NW3 for mastic joints. Among the streets we cover are Eton Road, Oval Road and Regal Lane, and sites on any of them can send details for a fixed quote. Close to Kentish Town, our area also takes in 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). Bigger towns within reach include 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).
Near you in Kentish Town
In Kentish Town, that means premises near Primrose Hill, Haverstock School and North Bridge House School. Also close by are The Hawley Arms (under half a mile south) and Vaughan Williams Memorial Library (0.5 miles south). There’s a railway station in Kentish Town itself: Kentish Town West station. Nearby you will also find O2 Centre (1.6 miles west) and Montfichet's Tower (2.9 miles south-east). Not far away are The Long Water and Primrose Hill.
Also near Kentish Town
Also in Kentish Town
Different surfaces, different methods
Tenement and older buildings
Traditional buildings have joints that need a careful approach. The material either side of the joint shapes the product choice.
Window and door perimeters on blocks
On most blocks, the frame-to-wall joint is where failure shows first. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
Why deal with it now?
Dealing with failed joints one report at a time is slow and scattered. Planned resealing covers a whole building or estate in one go, under a single quote and a single programme. Failed sealant in a building in Kentish Town can quickly affect neighbours, tenants or the floor below. Dealing with it early is simpler for everyone.
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.
Why appoint us
- Matching to RAL references, product permitting
- CHAS accredited
- Colour agreed before work starts
- Over 20 years of commercial sealing
Read how commercial sealant jobs are priced and how we’re accredited.
Your questions answered
Can you quote for a block close to Kentish Town West station?
Yes, and several blocks can go on one quote. Send the address, photos of the elevations and your access arrangements, and we will give a fixed quote.
Can you work in a London building with booked loading and goods-lift slots?
Yes, most London buildings have access rules of some kind, and we plan around them. Send the building rules and access times with your enquiry.
Can you work to our specification?
Yes. Send it with your enquiry, and we will price the work to it, flagging anything that needs clarifying.
Can you seal joints high up on a block?
Every block is different. How upper joints are reached is agreed before work is booked so there are no surprises.
How long does a job like this take?
The duration is planned around your programme and the access we are given. You’ll have an expected duration with the quote.
Does the weather affect the work?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
What guarantee do you give on resealing?
Every building we reseal has a 12-month guarantee. It covers our workmanship, not later building movement, damage or frame failures.