Construction and new-build mastic in Thong, Kent
We carry out mastic packages for new-build and refurbishment projects in Thong and the surrounding area. Send details for a fixed quote.
- Early adhesion failures on new external joints
- Snag items on joints that need redoing before handover
- Different trades sealing to different standards
Need construction mastic in Thong?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Should maintenance staff do it?
Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
Construction mastic in Thong
Mastic follows everyone else, which means it absorbs every delay upstream. The sequence is set with the site team and updated as plots or floors are handed over. Sealing too early only means coming back once others have damaged it. If you have internal caulk splitting as the building dries out and inconsistent sealant finishes from plot to plot, we can help, on brick and block movement joints, window and door perimeters and sanitary and kitchen joints alike. For commercial sealant work in Thong, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
Sites around smaller places like Thong can be a fair drive from suppliers, so we come with everything the package needs, timed to the stage the job has reached. Send drawings or photographs and the programme and we will quote to suit.
Our workmanship is guaranteed for 12 months, in Thong as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Where
- Thong (DA12)
- Region
- Kent
- Guarantee
- A 12-month guarantee
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
Aftercare for building managers
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:
- Keep finished joints away from paint, plaster and scrapers
- Plan external elevations with the weather in mind
- Don’t schedule sealing before decorators and flooring are done
- Brief the final clean team to avoid blades near sealant
If a joint is damaged after sealing, flag it early. We can return to clear snags before handover as agreed in the quote.
Snag items left to the last week put handover at risk. Clearing snags area by area spreads the work out and keeps handover on track.
When it isn’t the sealant
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Frames fitted out of tolerance
- Joints damaged after sign-off by following trades
- Faulty frames rather than failed sealant
Not sure which it is? You can give us a call on 01277 525 020 or email drawings and photos and we will tell you honestly.
Where we work in Thong
- Cladding and panel joints
- Floor and skirting junctions
- Brick and block movement joints
- Window and door perimeters
- Internal decorators’ caulk
- Sanitary and kitchen joints
New build and refits around Thong
Thong lies within about 3 miles of the sea. Facades and window perimeters on coastal schemes take more wind-driven rain, and salt air nearer the shore, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. A 2-mile radius around Thong takes in several hotels. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades.
Extensions at sites like Gravesham Community Hospital (to the north-west of Thong) typically sit beside working departments, and the mastic follows strict access rules. Historic houses such as Cobham College, 1.5 miles south of Thong, are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products. When units on a site such as Lion Business Park, 2 miles to the north of Thong, are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
Thong is about 2 miles south-east of Gravesend, in Kent. We send applicators to Thong for mastic packages. We work across 931 places in Kent, large and small. Our London page has more on work in that area (22 miles or so).
Anyone looking for construction mastic in DA12 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Close to Thong, our area also takes in Upper Ifield (1 mile east), Shorne Ridgeway (1 mile east), Shorne (1 mile east), Chalk (1 mile north) and Higham (2 miles east). Further afield, our area takes in Maidstone (11 miles south-east), Sittingbourne (15 miles east), Dartford (8 miles west), Sevenoaks (13 miles south-west), Northfleet (3 miles north-west) and Swanley (10 miles west).
Near you in Thong
Locally, jobs take us to sites close to Shorne Woods Country Park and Thamesview School, among other places. The nearest railway station is Sole Street station, roughly 2.2 miles south-west of the centre. A little further out are Rochester Castle (4.5 miles east) and Gravesham Museum (2.6 miles north-west). The countryside around Thong includes Rede Common and Gad's Hill.
Our process
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. If others near Thong need work, visits can be combined. You’ll have a fixed quote before work starts.
- We walk the site or review drawings to understand the package.
- A fixed quote sets out scope, products and phasing.
- Paperwork is agreed and applicators are inducted on site.
- We seal plot by plot or floor by floor in line with the programme.
- Any frame gaps or issues outside our scope are flagged to the site team.
- Final snagging is completed and the 12-month guarantee applies.
Getting the site ready
- Let building users know which areas are affected
- Flag any permit to work we’ll need
- Send your site hours and access windows
Quotes
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or send photos by email.
Advice
What the job involves on each surface
Fire-rated sealant where specified
Not every penetration suits a sealant. Collars, wraps, batts and boards are specified for other services, and we will tell you if the detail calls for something else. Record requirements are agreed with the quote.
Window and door perimeters
Gaps around frames have to be within the sealant’s range. Gaps outside the product’s range are raised with the site team before sealing starts.
Questions about Thong
Is Thong too far out for you?
No. Places such as Thong are covered as much as the big towns. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.
Does your area include sites such as Lion Business Park, near Thong?
Yes, sites like Lion Business Park are within our area, along with the rest of Thong. Send details of the unit and the work through our quote form for a quick quote.
Can you work plot by plot or floor by floor?
We follow the trades through the building. Areas are sealed as they’re released by the site team.
When can the area be used after sealing?
We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.
Will you quote for a small job?
We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.
Do you do fire-rated sealing on new builds?
Fire-rated sealing at service penetrations and linear gaps can be included where specified. Record requirements are confirmed at quote stage.
Do you seal on top of existing sealant?
No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
For managing agents and facilities managers
As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.