Northumberland Park construction mastic
Mastic packages for new-build and refurbishment projects across Northumberland Park, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Caulk cracking where joints are moving more than expected
- Different trades sealing to different standards
- Sealant knocked or painted over by other trades
Construction mastic near Northumberland Park
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Northumberland Park: questions and answers
Do you take on jobs in Northumberland Park where loading and access are tightly controlled?
Yes. Inductions, permits and timed loading are routine for us in London. Share the building’s contractor rules and we will work to them. We allow for the ULEZ, which covers every borough
Do you cover business parks and estates near Northumberland Park, such as Compass West Industrial Estate?
Yes. Estates, retail parks and business parks around Northumberland Park, Compass West Industrial Estate among them, are all within reach. To start, just phone 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.
Who decides which product is used?
The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
Can you seal external joints in wet or cold weather?
External sealing goes ahead only with a dry joint inside the product’s temperature range. Sealing in poor conditions risks adhesion failure, so we wait rather than redo work.
Do you work to architects’ specifications?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
Can one quote cover more than one building?
Yes. Several buildings can share a single quote, with one point of contact.
Can you work to our specification?
The specified product is what goes in. Any suggested alternative is put to you before anything changes.
About our construction mastic in Northumberland Park
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, and on older buildings we ask for the asbestos survey before disturbing anything. New and existing joints then get the same preparation. If you are dealing with a mastic package split between trades with no clear owner and perimeter gaps outside the sealant’s range, we can help, whatever the surface. Whoever orders the work in Northumberland Park, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.
Every London site, Northumberland Park included, is inside the ULEZ, which applies to deliveries and contractors’ vans alike. Alongside that, sites normally need booked deliveries and a plan for where materials go.
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
- Northumberland Park (N17, N18)
- Wider area
- Greater London
- Cover
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
What happens if it’s left?
On a refurbishment, there’s a choice between resealing existing frames and replacing them. Sound frames often need only a new perimeter seal, which is a much smaller cost. We will say so if a frame itself is the problem. Failed sealant in a building in Northumberland Park can quickly affect neighbours, tenants or the floor below. Putting it right early is less disruptive than dealing with the consequences.
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.
Why appoint us
- CSCS-carded applicators
- One contact handling all your sites
- Colours confirmed for the specified product
- Products installed to the manufacturer’s instructions
Take a look at how commercial sealant jobs are priced and our accreditations and insurance.
Honest limits
We check first that sealant really is the fix. It isn’t the answer for:
- Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
- Glazing units that are cracked or misted
- Joint design decisions that belong to the architect or engineer
If in doubt, phone 01277 525 020 or email drawings and photos and we’ll say what we think before you book.
Surfaces we seal
- Cladding and panel joints
- Window and door perimeters
- Floor and skirting junctions
- Internal decorators’ caulk
- Sanitary and kitchen joints
- Brick and block movement joints
Mastic packages on Northumberland Park sites
The ULEZ covers the whole of Greater London, Northumberland Park included, so site vehicles need to meet its standards or pay the daily charge. Add booked deliveries and tight storage, and the mastic package needs planning with the site team. A 2-mile radius around Northumberland Park takes in a number of hotels. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight.
University estates such as University of Portsmouth Walthamstow Campus (to the south-east of Northumberland Park) tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal. Hospital estates such as North Middlesex University Hospital, 0.9 miles to the north-west of Northumberland Park, 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.
Northumberland Park is about 1 mile north-east of Tottenham, in Greater London. Across the N17 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Across Greater London, 764 places are covered, including Northumberland Park. London is covered too, some 7 miles away.
Work on mastic packages is covered throughout N17 and N18. If your site is on Love Lane, Park Lane and York Road or close by, we can quote for mastic packages. We also cover Upper Edmonton (1 mile north-west), Edmonton (1 mile north), South Chingford (1 mile east), Picketts Lock (2 miles north-east) and Highams Park (2 miles east) for mastic packages. Bigger towns within reach include London (7 miles south), City of Westminster (7 miles south-west), Marylebone (7 miles south-west), Kensington (10 miles south-west), St Pancras (6 miles south-west) and Shoreditch (6 miles south).
Near you in Northumberland Park
Recent enquiries here include premises near Duke's Aldridge, No.8 Tottenham pub and London Academy of Excellence Tottenham. Northumberland Park has its own railway station: Northumberland Park (London) station. Nearby you’ll also find North Middlesex University Hospital (0.9 miles north-west) and Markfield Beam Engine and Museum (1.6 miles south). Green spaces nearby include Pole Hill and Highams Park Lake.
Diagnose, treat, sign off
When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, with the work itself usually taking anything from a day of snagging to several weeks of plot-by-plot sealing on a phased scheme. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.
- We price from the drawings, specification and programme you send.
- You receive a fixed quote listing scope, products and phasing.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Work follows the programme, area by area, as rooms and elevations become ready.
- 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
- Tell us which areas need to stay in use
- Send any specification or drawings in advance
- Tell us what induction or permit system the site runs
Quotes
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call 01277 525 020 or use the quote form with what you know.
Related advice
Common problems we fix in Northumberland Park
Shrinkage and settlement in the first months put new joints under strain. Materials lose construction moisture and shrink and internal caulk in a moving joint is usually the first to crack. Picking a flexible sealant where there’s movement keeps snags down.
Any of the following is a good reason to get the joints checked over:
- Sealant knocked or painted over by other trades
- Mastic snags holding up handover
- Inconsistent sealant finishes from plot to plot
- Failed sealant in an existing building being refurbished
When units on a site such as Compass West Industrial Estate, under half a mile north of Northumberland Park, are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
What your quote should include
- How the existing material will be dealt with
- Whether their applicators hold CSCS cards
- Their approach to joint depth and backing
- Whether primer will be used where the manufacturer specifies it
Quoting for work in Northumberland Park
We price every job individually. The things that drive the figure:
- How much there is to seal
- Location, for remote and island sites
- Whether the work must be split into stages
- The site’s rules and procedures
We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.
Sending details for a quote
Whether it’s one area or a whole building, these details speed things up:
- Anything awkward about access or site hours
- Any dates the work must fit around
- Any specification or named product
- The asbestos register, for older buildings
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, call 01277 525 020 or send photos by email.
What the job involves on each surface
Snagging before handover
Snags normally come from damage by following trades, missed joints or poor earlier work. Snagging can be included or priced separately, depending on what suits the programme.
Kitchens and utility areas
Worktop upstands, sinks and splashbacks are sealed once the kitchen is fitted. The sealant is a kitchen-grade product and hygienic or food-safe grades wherever food contact is possible.