The Mastic Doctor team standing beside their branded vans outside an office building
Kent · England

Construction and new-build mastic in Frogham, Kent

Construction mastic for Frogham, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • New external sealant already peeling away
  • Cracks opening in caulked internal joints
  • Window and door perimeters that won’t pass inspection
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Construction mastic for businesses in Frogham

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

For managing agents and facilities managers

We work for building owners and managing agents on everything from one building to a spread of sites around Frogham. Several sites can go on one quote, which keeps the paperwork simple.

Whether you’re a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Construction mastic in Frogham

Getting a subcontractor through site induction should be simple. Our applicators are CSCS-carded, and we’re CHAS accredited and a Constructionline member, and we are fully insured. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. Most enquiries involve early adhesion failures on new external joints and failed sealant in an existing building being refurbished, on internal decorators’ caulk, floor and skirting junctions and window and door perimeters. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Frogham, preparation and product choice get the time they need.

Construction in and around smaller places such as Frogham is often barn conversions, small groups of houses or extensions to halls and schools. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.

Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Frogham (CT15)
Wider area
Kent
Guarantee
12 months on every job
Price
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026

Common questions from Frogham clients

Is Aylesham Industrial Estate, near Frogham, within your area?

Yes. We cover Frogham and the area around it, including industrial estates, business parks and retail parks such as Aylesham Industrial Estate. Photos and a short description are enough for a first look.

Is Frogham too small for you to travel to?

No. Small places get the same service as large ones. Our area covers London and the South East counties. Good photographs up front let us bring everything on the first visit.

What guarantee comes with a mastic package?

It’s backed by our 12-month guarantee on the workmanship. Protecting sealed areas from following trades helps avoid damage.

Do you need to see the site first?

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

How do you work with the site programme?

We follow the trades through the building. Areas are sealed as they’re released by the site team.

What does a mastic package typically include?

It depends on the specification, but frames, sanitary, kitchens, caulk where specified and snagging are typical.

What site paperwork can you supply?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

Different surfaces, different methods

Kitchens and utility areas

Kitchen joints are sealed after fitting and before final clean. The sealant is a kitchen-grade product.

External facade and movement joints

External movement joints often need primer, depending on the substrate. Primer goes on where the sealant maker calls for it, and seal only with a dry joint inside the product’s temperature range.

From enquiry to sign-off

When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, with the work itself typically taking a day or two on a small fit-out and several weeks on a large multi-storey package. Jobs in and around smaller places like Frogham are typically planned as a single visit, so photos and measurements up front really help. That way the right products come on the day.

  1. We price from the drawings, specification and programme you send.
  2. We return a fixed quote that ties the mastic package to your programme.
  3. Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
  4. We seal each plot or floor as it’s released to us.
  5. Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
  6. Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.

Before we start on site

  • Flag any permit to work we will need
  • Tell us your opening times and when work is allowed
  • Make sure the joints can be reached

Get a fixed quote

Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. If you have questions first, call the office on 01277 525 020 or email drawings and photos.

Ask for a quote

Advice

Mastic packages on Frogham sites

Frogham sits in one of the drier corners of the country, the South East. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so the external programme keeps a little slack. At about 61 miles from central London, Frogham is within reach of the capital. Towns within reach of London tend to keep building, from flats to offices and schools, so mastic packages have to keep pace with busy programmes.

Projects at schools like Nonington Church of England Primary School work to term dates, so mastic is programmed tightly. Recladding or extending a unit at a site like Aylesham Industrial Estate (1.8 miles north-west of Frogham) brings panel joints and frame perimeters into the programme.

Frogham is about 6 miles north-west of Dover, in Kent. Across the CT15 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Frogham is one of 931 places we cover in Kent for mastic packages. We also cover London, around 61 miles from Frogham.

If you need construction mastic in CT15, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Sites close to Frogham are covered too, including Barfrestone (1 mile south-east), Snowdown (1 mile north-west), Nonington (1 mile north), Woolage Village (1 mile west) and Elvington (1 mile east). Bigger towns within reach include Canterbury (8 miles north-west), Margate (14 miles north-east), Dover (6 miles south-east), Folkestone (9 miles south), Ramsgate (12 miles north-east) and Broadstairs (14 miles north-east).

Around Frogham

The nearest railway station is Snowdown station, roughly 0.8 miles north-west. Well-known places in the area include Buckland Hospital (6 miles south-east).

Map of Frogham © OpenStreetMap contributors

Maintenance after handover

Your facilities or cleaning team can help the joints last. Share these points with them:

  • Keep scrapers and abrasive pads off new beads
  • Don’t force external sealing on a damp or frosty day
  • Keep finished joints away from paint, plaster and scrapers
  • Put any product change through the designer first

A new structure shifts as it loses construction moisture. The right product in each joint copes with that. We can advise if a joint needs a different product.

In wet areas, a weak sanitary joint shows up quickly once the building is occupied. Water gets behind trays, vanity tops and panels, leaving the remedial work to the contractor. Getting the product and preparation right first time avoids that.

When to bring in a specialist

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.

Common problems we fix in Frogham

Most mastic snags on new buildings come from sequencing rather than product. Sealing before decorators, flooring or other trades have finished leaves joints exposed to damage, so they end up back on the snag list.

What tends to prompt an enquiry:

  • Different trades sealing to different standards
  • Missed perimeter joints on a new elevation
  • Cracks opening in caulked internal joints
  • Early adhesion failures on new external joints

With historic properties like Goodnestone Park, 2.4 miles to the north of Frogham, in the area, refurbishment work often meets old masonry that needs compatible sealants.

Comparing quotes

  • What site paperwork they can supply
  • Can the work be phased to keep areas open?
  • Their pre-qualification and accreditations
  • Their approach to joint depth and backing

Questions to ask before you appoint anyone

Accreditations

Trusted. Accredited. Insured.