East Finchley mastic sealing
We carry out mastic sealing for building owners, managing agents and housing associations in East Finchley and the surrounding area. Send details for a fixed quote.
- Draught complaints from residents or tenants
- Open joints in brickwork or panels
- Repeated reactive repairs to the same buildings
Mastic sealing for businesses in East Finchley
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Mastic sealing in East Finchley, done properly
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. We work on communal entrances and stairwells, window and door perimeters on blocks and communal kitchens and washrooms, and the failures we are asked to look at most are water getting in round frames after rain and movement joints with sealant missing. Facilities teams, main contractors and managing agents in East Finchley tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
For managing agents in East Finchley, 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 we finish is backed by a 12-month workmanship guarantee, in East Finchley as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Where
- East Finchley (N2, N3, NW11)
- Region
- Greater London
- Cover
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
Owners, agents and contractors
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. East Finchley can form part of a wider programme.
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.
What happens if it’s left?
Reacting to every complaint means sending someone out block by block. A planned programme treats each building once, under a single quote and a single programme. Access in London is hard enough to arrange once, so while access is arranged it pays to renew all failing joints, not just the worst.
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote and we will explain how it’s made up.
What you get with us
- Joints cleaned back to sound surfaces
- Fully insured
- Over 20 years of commercial sealing
- Standard and matched colours in many product ranges
Read what affects the cost or our accreditations.
What sets the cost
Quotes vary with the job. Expect it to depend on:
- The total length or number of joints
- Induction, permit and paperwork requirements
- Working within restricted access windows
- Which sealant the job calls for
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Before you send an enquiry
There’s no need for a formal survey. A few details are enough to get going:
- When you need the work done
- Whether an asbestos survey exists
- The postcode of the building
- Clear photographs of the problem areas
Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. The easiest way is to give us a call on 01277 525 020 or use the quote form.
How a job runs
At the end of each section, the masking comes off, the area is cleaned and every joint is checked, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. Planning a London job such as one in East Finchley starts with access. Give us the hours we can be on site and we’ll schedule to suit.
- We inspect the joints, building by building, and record what has failed and why.
- A fixed quote follows, split by block or building if that suits you.
- 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 where the joint and the product need them, then new sealant is applied and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
What we need from you
- Share the asbestos register for older buildings
- Make sure the joints can be reached
- Point out parking and an unloading spot
Getting a fixed quote
For a fixed quote, phone 01277 525 020 or email the details over with the site address and an outline of the work. Our quote form is another easy route.
Advice
Also near East Finchley
What else we do in East Finchley
Honest limits
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Asbestos-containing sealant, which we don’t remove
- Substrate edges that need repairing first
- Water coming in from the roof or rainwater goods
Not sure which it is? You can call the office on 01277 525 020 or email the details over and we will tell you honestly before you book.
What we seal
- Balcony and threshold joints
- Window and door perimeters on blocks
- Communal entrances and stairwells
- External wall and movement joints
- Shopfronts below residential blocks
- Communal kitchens and washrooms
Site staff or a sealant specialist?
Redoing a failed joint normally costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Looking after buildings in and around East Finchley
There are 10 care or nursing homes within about 2 miles of East Finchley. Care home owners need frame and external mastic kept sound without unsettling residents. In London, mastic work on a block goes through the managing agent or landlord, with notice to residents. We plan around the notices and access you arrange.
If you look after a block within reach of New Southgate station, 2.2 miles to the north-east of East Finchley, frame and balcony mastic can be renewed on one programme. Older community buildings, Church of the Holy Trinity among them, often have frames of mixed ages whose mastic varies. For owners of several units at places like Finchley Industrial Centre, 2 miles to the north of East Finchley, one programme can deal with frame and external mastic across the lot.
East Finchley is about 5 miles north of Marylebone, in Greater London. Businesses, contractors and managing agents in East Finchley can call on us for mastic joints, as part of our coverage of Greater London. 764 places across Greater London fall within our area, including East Finchley. Sites around London have their own page, roughly 7 miles from East Finchley.
We take on mastic joints across the N2, N3 and NW11 postcode area, for business premises of every kind. Buildings on Oak Lane, Maya Road and High Road are within our area for mastic joints. With the A1 nearby, East Finchley is easy to get to with materials and equipment. If your building is just outside East Finchley, we cover Hampstead Garden Suburb (1 mile south-west), Fortis Green (1 mile east), Temple Fortune (1 mile south-west), Muswell Hill (1 mile east) and Golders Green (2 miles south-west). Bigger towns within reach include London (7 miles south-east), City of Westminster (5 miles south), Marylebone (5 miles south), Kensington (6 miles south), St Pancras (5 miles south-east) and Shoreditch (6 miles south-east).
Around East Finchley
Recent enquiries here include premises near Tollington School, Francis Skaryna Belarusian Library and Museum and Bishop Douglass School Finchley. Also close by are Lyttelton Playing Fields (0.5 miles south) and The Bald Faced Stag pub (0.5 miles east). East Finchley’s nearest station is New Southgate station, about 2.2 miles north-east of the centre. Nearby you will also find Grand Arcade (1.6 miles north) and Jewish Museum - Finchley (0.7 miles north-west). Not far away are Highgate Hill and Long Lane Pasture.
Questions about East Finchley
Is Finchley Industrial Centre, near East Finchley, within your area?
Yes, sites like Finchley Industrial Centre are within our area, along with the rest of East Finchley. Photos and a short description are enough for a first look.
Do you work for managing agents with blocks near New Southgate station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. We work to your notice and access arrangements.
Do you cover East Finchley?
Yes. East Finchley falls within our area, and the simplest way to start is to call 01277 525 020 or email us.
When can the area be used after sealing?
Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.
How do you reach windows on upper floors?
Every block is different. We agree access with you at quote stage so there are no surprises.
Do you do block-wide mastic programmes?
Yes, planned programmes suit estates and portfolios. You get a fixed quote per building or for the whole job.
Is mastic sealing guaranteed?
Our workmanship carries a 12-month guarantee, backed by public liability insurance.