
Construction and new-build mastic in Tonbridge, Kent
Mastic packages for new-build and refurbishment projects in Tonbridge. CHAS accredited and fully insured, with a 12-month guarantee.
- Missed perimeter joints on a new elevation
- Oversized or tapered gaps around new frames
- A long mastic snag list close to completion
Construction mastic for Tonbridge sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Construction mastic for commercial buildings in Tonbridge
The specification and the programme set the job. If a product is named, that’s what goes in; any alternative we suggest is put to you before anything changes. Backing, primer and depth follow what the sealant maker sets out. If you are dealing with frame gaps too wide for sealant alone and new external sealant already peeling away, we can put it right, on internal decorators’ caulk, sanitary and kitchen joints and brick and block movement joints alike. Searching for sealant specialists in Tonbridge? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.
Older town-centre buildings in places like Tonbridge are often converted to new uses or extended, which puts new frames and panels against old brick, stone or render. Getting the product and primer right for both faces is what keeps those joints sound.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Place
- Tonbridge (TN9, TN10, TN11)
- Wider area
- Kent
- Cover
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026

Questions we’re asked in Tonbridge
Would you work within a site like Tonbridge Cottage Hospital?
Yes, hospitals are one of the sectors we cover. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Could you schedule work at a campus like University of Kent - Tonbridge for the vacation?
Yes. We plan campus work around teaching, exams and residence turnarounds. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
What if there’s asbestos in the old mastic?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.
Do you work to architects’ specifications?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
Do you do fire-rated sealing on new builds?
We install fire-rated sealant where it is the specified product, working to the specification and the manufacturer’s installation guidance. If the detail calls for collars, wraps or batts instead, we will tell you.
What’s the quickest route to a quote?
You can use the quote form on this site; alternatively, call 01277 525 020 or send photos by email. Include photographs or drawings if you have them.
Can the sealant be colour-matched?
In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We will confirm the colours available for the specified product.
On site: what to expect
Inspect, seal, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. For a town like Tonbridge, we try to group jobs for the same client into one visit, with one quote covering them. Tell us when the building is open and we will plan to suit.
- We walk the site or review drawings to understand the package.
- A fixed quote sets out scope, products and phasing.
- Site paperwork is confirmed and our CSCS-carded applicators are inducted.
- We seal plot by plot or floor by floor in line with the programme.
- Problems we find, such as oversized gaps, are raised straight away.
- The package is closed out, snags cleared and backed by our 12-month guarantee.
Before we start on site
- Point out parking and an unloading spot
- Clear stock, furniture or equipment away from the joints
- Tell us what induction or permit system the site runs
Quotes
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.
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Should maintenance staff do it?
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
Redoing a failed joint typically costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
Building and refurbishing in Tonbridge
Tonbridge lies roughly 26 miles out from central London. Towns within reach of London tend to keep building, from flats to offices and schools, which keeps mastic packages in demand. There are a number of hotels within about 2 miles of Tonbridge. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
University estates such as University of Kent - Tonbridge, 0.5 miles south-west of Tonbridge, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal. When units on a site such as Kingstanding Business Park (2.8 miles south of Tonbridge) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
Tonbridge is about 12 miles south-west of Maidstone, in Kent. Any commercial site in Tonbridge is covered, whether it’s a single job or part of a planned programme. We work across 931 places in Kent, large and small. London is covered too, around 26 miles from Tonbridge.
Commercial sites across TN9, TN10 and TN11 are covered for mastic packages. If your site is on High Street, Old London Road and London Road or close by, we can quote for mastic packages. Main routes into Tonbridge include the A26 and A227, which helps when planning parking and deliveries for the job. Just outside Tonbridge, we also work in Lower Haysden (2 miles south-west), Leigh (3 miles west), Bidborough (3 miles south-west), Southborough (3 miles south) and Printstile (3 miles south-west). Bigger towns within reach include Maidstone (12 miles north-east), Sevenoaks (7 miles north-west), Royal Tunbridge Wells (4 miles south), Swanley (14 miles north), Kings Hill (7 miles north-east) and Foley Park (12 miles north-east).
Around Tonbridge
Locally, jobs take us to sites close to Haysden Country Park, Royal Rise Primary School and Hillview School for Girls, among other places. For rail, the closest station is Tonbridge station, roughly 0.6 miles south-west of the centre. A little further out are The Milne Museum (less than half a mile west) and Tonbridge Castle (less than half a mile south-west). Green spaces nearby include Tudeley Woods RSPB reserve and Barden Lake.
Cost factors for mastic packages
We price every job individually. The things that drive the figure:
- Which sealant the job calls for
- Induction, permit and paperwork requirements
- Backing rod, priming and other preparation
- Travel to remote or island sites
Pricing mastic packages depends on quantities, condition and access, plus any specification you are working to. Ask us for a fixed quote.
Before you send an enquiry
A good diagnosis starts with the right details. Tell us:
- How the joints are reached, and at what height
- Specification clauses that apply
- The postcode of the building
- Any dates the work must fit around
To get a fixed quote, ring 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. You can also send details through our quote form.
Also near Tonbridge
Also in Tonbridge
Keeping the joints sound
Your facilities or cleaning team can help the joints last. Pass these on to them:
- Ask cleaners to use soft cloths around fresh sealant
- Don’t force external sealing on a damp or frosty day
- Stick to the specified sealant rather than a generic substitute
- Share drawings and the specification as soon as possible
Our 12-month guarantee covers the workmanship from sign-off. The guarantee covers how we sealed, not later damage by other trades which is why protection after sealing matters.
A missed perimeter seal on one window can wet the reveal and the plaster inside. On a new building that means remedial work after decorating. A check of every frame before decorators start is worth the time.
How the job changes by surface
Bathrooms, en suites and washrooms
Sanitary joints around baths, showers, basins and WCs need anti-mould sanitary silicone. Joints are cleaned, sealed and tooled neatly, and any bath is loaded with water first where that’s the agreed method.
Internal decorators’ caulk
Where the specification calls for it, acrylic decorators’ caulk goes on non-moving internal gaps before painting. It’s paintable and suits gaps that don’t move.
What we are called out for in Tonbridge
A new building moves while it dries and settles. Plaster, screeds, timber and blockwork all shrink as they lose moisture, which opens up internal joints, particularly where caulk has been used in a joint that moves. Choosing the right product for each joint reduces that.
It’s worth sending us details if you spot any of the following:
- Cracks opening in caulked internal joints
- Window and door perimeters that won’t pass inspection
- Early adhesion failures on new external joints
- A long mastic snag list close to completion
Projects at schools like New Beacon School work to term dates, so mastic is programmed tightly.
What to look for in a quote
- How joint depth will be controlled
- What site paperwork they can supply
- Do they follow the manufacturer’s priming guidance?
- Their plan for phasing and protecting the area