Construction and new-build mastic in Kingsnorth, Medway
Construction mastic in Kingsnorth, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Snag items on joints that need redoing before handover
- Old sealant on a refurbishment that needs stripping before new work
- Caulk cracking where joints are moving more than expected
Construction mastic for Kingsnorth sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle construction mastic in Kingsnorth
External mastic depends on the weather in a way most internal trades don’t. Cold or damp mornings, frost and condensation on frames can all hold external sealing up. Internal sealing often fills those days. We work on window and door perimeters, internal decorators’ caulk and cladding and panel joints, and what we are called in for most is early adhesion failures on new external joints and window and door perimeters that won’t pass inspection. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Kingsnorth, that means joint design, primers and backing rod as standard.
For a site near Kingsnorth, the mastic visit is planned so the right sealants, primers and backing rod are on hand. Send drawings or photographs and the programme and we will quote to suit.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we’re clear about what is covered before work starts.
- Place
- Kingsnorth (ME3)
- Wider area
- Medway
- Guarantee
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
From enquiry to 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 any cutting starts, and the work usually takes a few days on a modest refurbishment and longer on multi-plot or multi-storey schemes. Jobs in and around smaller places like Kingsnorth are normally planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.
- Drawings, the sealant specification and your programme come to us for pricing.
- We return a fixed quote that ties the mastic package to your programme.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it 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
- Have the specification and drawings to hand
- Share the asbestos register for older buildings
- Send your site hours and access windows
Request a quote
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.
Related advice
Towns and villages near Kingsnorth
Also in Kingsnorth
Questions we’re asked in Kingsnorth
Does the sea air around Kingsnorth change the choice of sealant?
It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. We check the specified product suits the exposure and pay close attention to preparation.
Is Kingsnorth too far out for you?
No. Small places get the same service as large ones. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.
Are you insured?
Yes. Mastic Doctor is fully insured, public liability included.
When can you be on site?
Give us your site hours and any access windows in your enquiry, and we will plan around them. Our office runs Monday to Friday, 8am until 5pm.
Will you quote for a small job?
We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.
Can fire-rated sealing at service penetrations be included?
It can be part of the package where specified. Tell us what records you need and we will confirm with the quote.
Building owners, agents and FMs in Kingsnorth
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
Leave it or put it right?
Sealing over damaged or contaminated new joints might save a day. Sealant can’t grip a contaminated or existing bead and the defect reappears in the defects period. We cut out and redo the joint properly. Older rural buildings around Kingsnorth move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.
There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.
Why us?
- Colour options checked against the specified product
- 12 months’ guarantee on every job
- One phone line for London, the South East and Scotland
- RAL and finish matching where the product range allows
New build and refits around Kingsnorth
With the shore within about 1 mile, Kingsnorth counts as a coastal location. On a coastal site, facade and perimeter joints face driven rain and, closer to the beach, salt, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Central London is about 30 miles from Kingsnorth. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, so mastic packages have to keep pace with busy programmes.
On a campus such as University of Greenwich - Medway (3.4 miles south-west of Kingsnorth), new teaching buildings and residences are normally built and refurbished around the academic year. For contractors at a school such as The Hundred of Hoo Academy, sealing has to be finished before term starts. New wings at hospitals like Medway Maritime Hospital (to the south-west of Kingsnorth) bring long runs of window and panel joints to seal.
Kingsnorth is about 4 miles north of Gillingham, in Medway. Businesses, contractors and managing agents in Kingsnorth can call on us for mastic packages, as part of our coverage of Medway. Our Medway coverage takes in 54 places, from busy centres to rural villages. London is covered too, some 30 miles away.
Commercial sites across ME3 are covered for mastic packages. Buildings on Jetty Road and Jacob's Lane are within our area. We also cover Tunbridge Hill (1 mile north), Sharnal Street (1 mile north-west), Fenn Street (1 mile north-west), Hoo St Werburgh (2 miles west) and High Halstow (2 miles north-west). Bigger towns within reach include Gillingham (4 miles south), Chatham (6 miles south-west), Rochester (5 miles south-west), Rainham (5 miles south), Strood (6 miles south-west) and Luton (5 miles south-west).
Around Kingsnorth
For rail, the closest station is Gillingham (Kent) station, roughly 3.6 miles south-west of the centre. Well-known places in the area include Medway Maritime Hospital (4.2 miles south-west) and Upnor Castle (3.5 miles south-west). For a walk, there’s Bishop Saltings.
Site staff or a sealant specialist?
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
What sealant work can’t fix
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Glazing units that are cracked or misted
- Designing joint widths or choosing the specification (that sits with the designer)
- Frame gaps too wide for sealant, which the installer needs to correct
Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we’ll tell you honestly.
Joints and surfaces we work on
- Sanitary and kitchen joints
- Cladding and panel joints
- Brick and block movement joints
- Window and door perimeters
- Internal decorators’ caulk
- Floor and skirting junctions
Cost factors for mastic packages
These are the things that shape the price:
- Working within restricted access windows
- Distance, for remote addresses
- The site’s rules and procedures
- How much existing material needs removing
The product called for affects the cost, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
Before you send an enquiry
To price the job accurately, we need a clear picture of the site. Send us:
- Whether the building will be occupied during the work
- The postcode of the building
- The product your specification calls for
- Approximate linear metres or a joint schedule
To get a fixed quote, speak to us on 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. Our quote form is another easy route.