South East England and London

Construction Mastic in Kent

We cover 931 towns and villages in Kent for construction mastic, with failed joints always cut out and a 12-month guarantee on our workmanship.

Need construction mastic in Kent?

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Get a quick quote 01277 525 020

Construction mastic across Kent

Mastic packages for new-build and refurbishment projects. Pick your town below to see the details for your area, and call or email us for a quote.

Main towns

How construction mastic works in Kent

Getting a subcontractor through site induction should be simple. Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member, and we are fully insured. RAMS, an insurance certificate and CSCS details can be confirmed with the quote if you tell us what you need. We work on brick and block movement joints, cladding and panel joints and internal decorators’ caulk, and the failures we are asked to look at most are inconsistent sealant finishes from plot to plot and snag items on joints that need redoing before handover.

Tell us your site hours and access windows and we’ll plan around them. While we’re working, the area stays contained and tidy, and your contact hears from us before we move to the next area.

First we look at the scope on site or from drawings.
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.

What you’ll pay

Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

Why choose Mastic Doctor

Coloured sealants to suit the setting, where available
A fixed quote before work starts
Work carried out by CSCS-carded applicators
CHAS accredited

Ask for a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.

Local landmarks in Maidstone

Recent enquiries here include premises near Paper Makers Arms, Maidstone Grammar School and St Philip's Church, among other places. Nearby too are River Len LNR (under half a mile north-east), South Borough Primary School (under half a mile south) and St Augustine Academy (1.2 miles west). For rail, the closest station is Maidstone West station, about 0.6 miles north-west. Nearby you will also find Maidstone Carriage Museum (under half a mile north-west) and Oakwood Hospital (1.8 miles west). Open spaces near Maidstone include Burham Down and Boxley Hills.

Construction mastic across Kent: the area picture

In places such as Maidstone, Ashford and Canterbury, and across Kent, refurbishment leaves plenty of facade joints to seal alongside new build. Each junction between new and existing materials needs the right sealant, primer and backing.

All of Greater London is inside the ULEZ, and much of the South East is within easy reach of the capital, and every job in Kent starts with access, parking and site rules. Coastal places in Kent often have hotels, guest houses and holiday accommodation with busy seasons, which makes the quieter months a good time for sealant work.

Maidstone: Building work at universities like University for the Creative Arts (to the west of Maidstone) is often timed for the summer, mastic included. Projects at colleges like MidKent College Maidstone Campus (1.4 miles west of Maidstone) tend to run to term dates, so the mastic is planned tightly.

How the quote is worked out

Quotes vary with the job. It mainly depends on:

Site requirements such as inductions and permits
Distance, for remote addresses
Whether old sealant has to be cut out first
Phasing around occupants

The product called for affects the cost, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.

What we need to price the job

However big the job, these details speed things up:

Approximate linear metres or a joint schedule
Access details, including height
Clear photos of the problem areas
Any specification or named product

The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or call 01277 525 020 or send details through our quote form if you’d rather talk the job through.

Why act early?

It helps to bring the mastic subcontractor in before the package is urgent. We can check joint widths, flag frames with gaps that won’t seal and confirm products against the specification. Leave it late and they turn up on the snag list.

Questions to ask before you book

Will failed sealant be removed rather than covered?
Proof of insurance
How long is the guarantee, and what does it include?
Do they follow the manufacturer’s priming guidance?

Why it fails

Three-sided adhesion is a frequent fault on new work. Fixed to three faces, the sealant rips the first time the joint opens.

Site and facilities staff are often the first to spot these:

A mastic package split between trades with no clear owner
New external sealant already peeling away
Snag items on joints that need redoing before handover
Missed perimeter joints on a new elevation

Building owners, agents and FMs in Kent

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.

Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.

What sealant work can’t fix

Some faults sit outside our scope, and we say so rather than covering them up:

Joint design decisions that belong to the architect or engineer
Deciding which fire-stopping product a penetration needs
Frame gaps too wide for sealant, which the installer needs to correct

Questions we are asked in Kent

What does a mastic package normally include?

The scope comes from the specification and drawings, but frames, sanitary, kitchens, caulk where specified and snagging are typical.

Will you just go over the old sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.

What guarantee comes with a mastic package?

Each package is backed by a 12-month guarantee. We carry five million pounds of public liability insurance.

Will you come and look before quoting?

That depends on the size and complexity of the job. Straightforward work can often be priced from photographs and measurements, and bigger or more complex jobs typically get a visit.

How do we ask for a quote?

There are four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.

Do you have public liability insurance?

Yes. We’re fully insured, and the certificate can go with your quote.

How long do sealant joints last?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.