North Cray construction mastic
We carry out mastic packages for new-build and refurbishment projects in North Cray. Send photographs or drawings for a fixed quote.
- Different trades sealing to different standards
- Caulk cracking where joints are moving more than expected
- Bath and shower joints scraped during the final clean
Construction mastic in North Cray
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Maintenance after handover
Keep the joints in good shape with a few simple steps:
- Allow flexibility for external sealing in damp or cold weather
- Ask for joint and product checks before the package is urgent
- Bring the mastic contractor in after the last trades are through
- Keep finished joints away from paint, plaster and scrapers
Brief the sparkle clean so they don’t scrape the new joints. Blades and abrasive pads are the commonest cause of damage at the final clean, so stick to soft cloths and gentle cleaners near sealant.
Leaving the mastic snag list to the end squeezes everyone. A planned close-out through each area as it completes keeps the list short, and avoids a rush.
How we handle construction mastic in North Cray
Most of the packages we price run well beyond frames: external door and window perimeters, internal decorators’ caulk where specified, sanitary joints in bathrooms and washrooms, kitchen worktops and splashbacks, and snagging before handover. One contractor for all of it keeps the responsibility in one place and gives you a consistent finish across the job. We work on window and door perimeters, floor and skirting junctions and sanitary and kitchen joints, and the failures we’re asked to look at most are old sealant on a refurbishment that needs stripping before new work and different trades sealing to different standards. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in North Cray, preparation and product choice get the time they need.
Every London site, North Cray included, is inside the ULEZ, which applies to deliveries and contractors’ vans alike. Add booked delivery slots and limited storage, and a London mastic package needs planning before the first bead.
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 spell out the cover before we begin.
- Where
- North Cray (DA14)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Doing it in-house
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
Putting right a botched joint often costs more than sealing it well at the start, 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.
Cost factors for mastic packages
Before we quote, we look at:
- Distance, for remote addresses
- Whether old sealant has to be cut out first
- Joint width, depth and condition
- Induction, permit and paperwork requirements
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.
Before you send an enquiry
A good diagnosis starts with the right details. Tell us:
- Access details, including height
- Drawings or a marked-up plan, if available
- The asbestos register, for older buildings
- Whether the building will be occupied during the work
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photos and a description will do.
FAQs: North Cray
Can you work around term dates at a campus such as University of Greenwich Avery Hill Campus?
Yes. Education sites usually want the work in vacations or in phases during term, and we plan to suit. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
Can you work in a London building with booked loading and goods-lift slots?
Yes, we plan every London job around the building’s own access rules. Share the building’s contractor rules and we will work to them.
What happens if old sealant might contain asbestos?
The duty to manage asbestos sits with the building’s dutyholder, so we’ll ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.
Can you clear a mastic snag list before handover?
Yes. We can work through a mastic snag list area by area before handover and damaged joints are redone properly.
Do you take on multi-site work?
Yes. A group of buildings can go on one quote, and you deal with one contact throughout.
How long does a typical visit take?
It depends on the scope, though a typical visit usually takes anything from a day of snagging to several weeks of plot-by-plot sealing on a phased scheme. For bigger or phased jobs, we’ll set out a timescale with the quote.
Will you quote for a small job?
Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.
Leave it or put it right?
A cheaper sealant can look like an easy saving on a large package. A failed joint in the defects period costs far more than the product difference and external joints are where it shows first. We price the specified product and will tell you plainly where an alternative would or wouldn’t work. In North Cray, each extra visit means more notices, permits and disruption, so a proper job first time, with the old sealant fully removed, is worth it.
Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
Why appoint us
- Public liability insurance in place
- Colours chosen to suit frames, cladding or finishes where possible
- Work carried out by CSCS-carded applicators
- A fixed quote before work starts
Read how commercial sealant jobs are priced or our accreditations and insurance.
From enquiry to sign-off
Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then handed back before we move to the next. Planning a London job such as one in North Cray starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we’ll schedule to suit.
- We price from the drawings, specification and programme you send.
- A fixed quote sets out the scope, the products and the sequence.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- Areas are sealed plot by plot or floor by floor as the trades hand them over.
- Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
- Snags are cleared before handover and completed areas carry our 12-month guarantee.
What we need from you
- Point out parking and an unloading spot
- Make sure the joints can be reached
- Flag any permit to work we will need
Request a quote
A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or speak to us on 01277 525 020 or email drawings and photos if you’d rather talk the job through.
Read more
Signs you need construction mastic in North Cray
Shrinkage and settlement in the first months put new joints under strain. Plaster, screeds, timber and blockwork all shrink as they lose moisture. Picking a flexible sealant where there’s movement keeps snags down.
It’s worth sending us details if you spot any of the following:
- Failed sealant in an existing building being refurbished
- Mastic snags holding up handover
- New external sealant already peeling away
- Missed perimeter joints on a new elevation
Hospital estates such as Queen Mary's Hospital, 1.8 miles to the south-west of North Cray, 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.
Before you book anyone
- Their approach to joint depth and backing
- The terms of the workmanship guarantee
- Proof of insurance
- The named product and why it was chosen
Building and refurbishing in North Cray
Site traffic in North Cray falls within London’s ULEZ, like everywhere else in Greater London. Deliveries are booked and storage is tight, so mastic materials come in as needed. The area within 2 miles of North Cray holds several hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
Building work at universities like University of Greenwich Avery Hill Campus, 2.8 miles west of North Cray, is often timed for the summer, mastic included. Projects at schools like Royal Park Primary Academy work to term dates, so mastic is programmed tightly.
North Cray is about 2 miles east of Sidcup, in Greater London. We cover North Cray, with the same fixed quotes and 12-month guarantee as everywhere else. Across Greater London, 764 places are covered, North Cray among them. London is covered too, some 11 miles away.
If you need construction mastic in DA14, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Streets here include Water Lane, North Cray Road and Leafield Lane. Sites close to North Cray are covered too, including Bexley (1 mile north), Coldblow (1 mile north-east), Ruxley (1 mile south), Blendon (1 mile north-west) and Joyden's Wood (1 mile east). Further afield, our area takes in London (11 miles north-west), City of Westminster (14 miles north-west), Marylebone (14 miles north-west), Kensington (15 miles west), St Pancras (13 miles north-west) and Shoreditch (11 miles north-west).
Landmarks near North Cray
Around North Cray, our work takes us to commercial buildings near Foots Cray Meadows, Cleeve Park School and The White Cross pub. For rail, the closest station is Albany Park station, roughly 0.6 miles north-west. A little further out are Broadway Shopping Centre (1.7 miles north) and Bexley Hospital (1.8 miles north). Green spaces nearby include Wansunt Pit and Summer Hill.