Construction and new-build mastic in Arnos Grove, Greater London
Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Arnos Grove. Send details for a fixed quote.
- Perimeter gaps outside the sealant’s range
- Old sealant on a refurbishment that needs stripping before new work
- New external sealant already peeling away
Need construction mastic in Arnos Grove?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Surface by surface
Bathrooms, en suites and washrooms
In bathrooms and washrooms, an anti-mould sanitary silicone goes around every fitting. Joints are cleaned, sealed and tooled neatly and baths are loaded where appropriate before sealing.
Snagging before handover
The last pass before handover is where mastic snags are cleared. Snags are cleared room by room.
Construction mastic in Arnos Grove
On a new build, the mastic package is one of the last trades through each area, so it lands at exactly the point the programme is tightest. Mastic Doctor takes on mastic packages for main contractors and developers on schemes in Arnos Grove, following the trades through the building as rooms and elevations become ready. We work on internal decorators’ caulk, brick and block movement joints and sanitary and kitchen joints, and what we are called in for most is failed sealant in an existing building being refurbished and different trades sealing to different standards. Searching for sealant specialists in Arnos Grove? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Around Arnos Grove, as across London, much of the work is refurbishing existing buildings as well as building new ones. New frames, overcladding and fit-outs all end in perimeter and facade joints, frequently with occupants close by, so tidy, well-planned work matters.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.
- Place
- Arnos Grove (N11, N14, N13)
- Region
- Greater London
- Guarantee
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
When something else is needed
Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be one of these:
- Frame gaps too wide for sealant, which the installer needs to correct
- Glazing units that are cracked or misted
- Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
If in doubt, phone 01277 525 020 or use the quote form and we will say what we think before you book.
What we seal
- Internal decorators’ caulk
- Cladding and panel joints
- Sanitary and kitchen joints
- Window and door perimeters
- Floor and skirting junctions
- Brick and block movement joints
Questions about Arnos Grove
Will you plan work around the academic year at somewhere like American University in London?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Does your area include sites such as Brunswick Industrial Estate, near Arnos Grove?
Yes. We cover Arnos Grove and the area around it, including industrial estates, business parks and retail parks such as Brunswick Industrial Estate. To start, just ring 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.
What happens if the weather stops external sealing?
Weather matters for external sealing: the joint needs to be dry and within the product’s temperature range. External work is sequenced with some flexibility.
Can you work plot by plot or floor by floor?
We follow the trades through the building. Each plot, floor or elevation is sealed when it’s ready and we tell you if something stops an area being sealed.
Do you work in Arnos Grove?
Yes. We cover Arnos Grove, and the simplest way to start is to speak to us on 01277 525 020 or email drawings and photos.
Can the sealant be colour-matched?
That depends on the product. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.
Can you send site paperwork?
Each site asks for different documents, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.
General trades versus a specialist
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.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
On site: what to expect
Occupied buildings need a little choreography. The work area is signed and kept contained, keep walkways clear and work section by section so the rest of the building stays in use. For a job in Arnos Grove, access comes first. Give us the hours we can be on site and we’ll schedule to suit.
- First we take quantities off the drawings and read through the specification.
- You receive a fixed quote listing scope, products and phasing.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- We seal each plot or floor as it’s released to us.
- Each joint is prepared, backed to depth and sealed in the product the specification names.
- Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.
Getting the site ready
- Warn occupants and staff about the work
- Tell us which areas need to stay in use
- Share the asbestos register for older buildings
Request a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.
Read more
How the quote is worked out
To price the job, we consider:
- Travel to remote or island sites
- The product specified
- How much existing material needs removing
- Whether the work must be split into stages
The specified product makes a difference, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.
Before you send an enquiry
However big the job, these details speed things up:
- Access details, including height
- Rough lengths or quantities, or drawings if you have them
- The asbestos register, for older buildings
- The product your specification calls for
Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.
Facades, frames and programmes in Arnos Grove
Arnos Grove has a good number of hotels close by, all within 2 miles. When hotels extend or refit, the work is normally squeezed between peak periods, mastic included. Site traffic in Arnos Grove falls within London’s ULEZ, like everywhere else in Greater London. Add booked deliveries and tight storage, and the mastic package needs planning with the site team.
Hospital estates such as Priory Hospital (1.2 miles north of Arnos Grove) tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan. For contractors on a campus like American University in London (3.9 miles south of Arnos Grove), facade and perimeter sealing has to fit around students and term dates. Hotel extensions and refits, at places such as Southgate Hotel London, 1.1 miles north of Arnos Grove, normally run between busy periods, so the sealing is squeezed into short windows.
Arnos Grove is about 3 miles north-east of Finchley, in Greater London. Any commercial site in Arnos Grove is covered, whether it’s a single job or part of a planned programme. We work across 764 places in Greater London, large and small. For work in that direction, see our London page, about 8 miles away.
If you need construction mastic in N11, N14 and N13, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on Oak Lane, High Road and York Road or close by, send details and we’ll quote for mastic packages. You will find Arnos Grove on or near the A109 and A1004. Nearby places we also cover include New Southgate (1 mile west), Bounds Green (1 mile south), Southgate (1 mile north), Palmers Green (1 mile east) and Oakthorpe Park (1 mile east) for mastic packages. A short drive away, we cover London (8 miles south), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (9 miles south), St Pancras (6 miles south) and Shoreditch (7 miles south).
What’s near Arnos Grove
Recent enquiries here include premises near The Ranelagh pub, Broomfield School and Broomfield Park. Arnos Grove’s nearest station is New Southgate station, about 0.6 miles west. Nearby you’ll also find Broomfield House Museum (0.5 miles east) and The Mall Wood Green (1.7 miles south-east). Green spaces nearby include Highgate Hill and Darland's Lake.
Also near Arnos Grove
Other services in Arnos Grove
Leave it or put it right?
It helps to bring the mastic subcontractor in before the package is urgent. We can check joint widths, flag frames with gaps that won’t seal and confirm products against the specification, which avoids last-minute problems. Leave it late and they turn up on the snag list. Getting scaffold, permits or access booked in Arnos Grove takes effort, so it makes sense to deal with every failing joint while access is in place.
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
What you get with us
- 12 months’ guarantee on every job
- Commercial sealant work since 2005
- One contact handling all your sites
- Colours confirmed for the specified product
See our cost guide and how we’re accredited.