Mastic sealant contractors in Wood Green
Planning work on a mastic joint in Wood Green? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- No planned programme for sealant
- Brittle perimeter mastic across a building
- Open joints in brickwork or panels
Mastic sealing for businesses in Wood Green
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Cost factors for mastic joints
These are the things that shape the price:
- Which sealant the job calls for
- Site requirements such as inductions and permits
- Backing rod, priming and other preparation
- Distance, for remote addresses
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you will have a fixed figure to work with.
Sending details for a quote
However big the job, the same details help:
- When you need the work done
- Whether the building will be occupied during the work
- Drawings or a marked-up plan, if available
- Whether an asbestos survey exists
Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. For smaller jobs, photos and a description will do.
Mastic sealing in Wood Green, done properly
Managing agents and housing associations usually need paperwork before anyone starts. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are a Constructionline member and CHAS accredited, and we carry public liability insurance. We work on window and door perimeters on blocks, communal entrances and stairwells and communal kitchens and washrooms, and the usual reasons a site gets in touch are mastic failing across several blocks on an estate and no planned programme for sealant. Searching for sealant specialists in Wood Green? We have been sealing commercial buildings since 2005.
London has a large stock of purpose-built blocks, mansion flats and converted buildings managed by agents and housing associations. Window and door perimeters, balcony joints and communal areas all have mastic that ages together across a building.
The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Place
- Wood Green (N22, N8)
- Region
- Greater London
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Questions we’re asked in Wood Green
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. The building manager’s rules go straight into our method. All of Greater London is inside the ULEZ, and our planning allows for it
Do you work in occupied care homes around Wood Green?
Yes. We agree rooms and times with the manager and work a few areas at a time. Noise and disruption are kept to a minimum.
Who decides which product is used?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
Can weather delay the job?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
What if the old mastic contains asbestos?
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.
Can you take on resealing for a block portfolio?
Yes, block and estate work is a core part of what we do. We work through buildings in a planned order with dates agreed in advance.
How long before the joints can be used?
The product and site conditions decide that. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
Building owners, agents and FMs in Wood Green
We work for building owners and managing agents on everything from one building to a spread of sites. One quote can cover more than one site, so there’s one set of paperwork to deal with.
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
On site: what to expect
When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before anything is cut or cleaned, with the work itself typically taking a day or two for a single block, longer for an estate programme. Planning a London job such as one in Wood Green starts with access. Give us the hours we can be on site and we will schedule to suit.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- New sealant goes in with backing rod and primer where needed.
- We check the finished work and confirm the guarantee.
Getting the site ready
- Arrange parking or a loading space
- Tell us what induction or permit system the site runs
- Share the asbestos register for older buildings
Getting a fixed quote
Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings that you can work with. For a chat about it beforehand, speak to us on 01277 525 020 or email us.
Read more
What happens if it’s left?
Draughts round window perimeters cost occupiers comfort and the windows typically get the blame. Resealing the perimeters is often the simpler fix where the frames themselves are sound. Repeat call-outs disrupt occupied London buildings, so cutting the old sealant out fully and doing it right once is the better route.
A quote for 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.
Why us?
- Coloured sealants to suit the setting, where available
- A fixed quote before work starts
- Fully insured, including public liability cover
- Specification-led, product-correct work
Take a look at our cost guide and our accreditations and insurance.
What the job involves on each surface
External movement joints
Brickwork, blockwork and panel joints let a building move. Failed sealant in a movement joint lets water in.
Commercial and mixed-use buildings
Commercial buildings have mastic at shopfronts, entrances and external joints. A planned programme suits multi-building portfolios.
Places near Wood Green
More services for Wood Green
Doing it in-house
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Looking after buildings in and around Wood Green
Wood Green has five care or nursing homes no more than 2 miles away. Owners of care premises can bring window and door mastic into a phased programme planned around the home. London blocks come with residents to inform, access to agree and often a concierge or estate office to work with. We work to your notice and access plan.
Older community buildings, Church of St Michael and All Angels among them, often have frames of mixed ages whose mastic varies. Property owners at sites such as St. George's Industrial Estate (0.7 miles north-east of Wood Green) can have mastic renewed between lettings. Buildings close to stations like Alexandra Palace station (0.5 miles west of Wood Green) are often flats over shops, with frame mastic to keep sound.
Wood Green is about 3 miles south-west of Edmonton, in Greater London. We cover commercial sites throughout Wood Green, whether it’s a single job or part of a planned programme. Wood Green is one of 764 places we cover in Greater London for mastic joints. For work in that direction, see our London page.
Anyone looking for mastic sealing in N22 and N8 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Vincent Square, Station Road and Gathorne Road or close by, send details and we will quote for mastic joints. Access to Wood Green is via the B151 among other routes, so getting applicators and materials to site is simple. Just outside Wood Green, we also work in Noel Park (1 mile south-east), Turnpike Lane (1 mile south), Hornsey (1 mile south-west), Crouch End (1 mile south-west) and Stroud Green (2 miles south). Nearby towns on our patch include London (7 miles south), City of Westminster (6 miles south), Marylebone (6 miles south), Kensington (8 miles south-west), St Pancras (5 miles south) and Shoreditch (5 miles south).
Near you in Wood Green
We work on buildings around St Thomas More Catholic School, Woodside Park and The Nag's Head pub and the streets around them. Wood Green’s nearest station is Alexandra Palace station, about 0.5 miles west of the centre. Nearby you will also find Broomfield House Museum (1.3 miles north) and The Mall Wood Green (less than half a mile south). Open spaces near Wood Green include Railway Fields and Highgate Hill.