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

Construction and new-build mastic in Goodnestone, Kent

Commercial sealant work in Goodnestone for contractors, FMs and building owners: mastic packages for new-build and refurbishment projects, quoted at a fixed price.

  • Sealant knocked or painted over by other trades
  • New external sealant already peeling away
  • Failed sealant in an existing building being refurbished
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Construction mastic across Goodnestone

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 Goodnestone

The specification and the programme set the job, not to habit. If a product is named, that’s what goes in. Joint widths, backing, primers and tooling follow the manufacturer’s guidance. Site teams most often ask us about external joints sealed in damp or cold conditions that are now failing and caulk cracking where joints are moving more than expected, on floor and skirting junctions, cladding and panel joints and brick and block movement joints. Looking for mastic applicators who cover Goodnestone? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.

Construction in and around smaller places such as Goodnestone is often barn conversions, small groups of houses or extensions to halls and schools. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.

Every job we finish is backed by a 12-month workmanship guarantee, wherever the site is. If our installation lets you down in that time, we return and fix it.

Place
Goodnestone (CT3)
Wider area
Kent
Cover
12 months on our workmanship
Quote
A fixed quote before we start
Call
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

What we are called out for in Goodnestone

On a live site, contamination is the biggest threat to a new joint. Dust, film adhesive, damp and grease on the joint faces prevent a proper bond so faces get cleaned, and primer goes on wherever the maker specifies, even on new work.

Common reasons buildings call us in:

  • Perimeter gaps outside the sealant’s range
  • Sanitary sealant damaged by following trades
  • New external sealant already peeling away
  • Caulk cracking where joints are moving more than expected

When units on a site such as Wingham Industrial Estate (1.5 miles north of Goodnestone) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.

Questions to ask before you book

  • Will RAMS and insurance details be available?
  • Their pre-qualification and accreditations
  • How they’ll work around occupants
  • How the joint faces will be prepared and primed

Our contractor checklist

Honest limits

Being straight saves everyone time. Fresh joints won’t solve:

  • Specifying the product where the designer hasn’t
  • Defective windows, doors or glazing units (the supplier or installer’s job)
  • Damage to finishes by other trades after we’ve sealed

Not sure which it is? You can speak to us on 01277 525 020 or send photos by email and we’ll tell you honestly.

Joints and surfaces we work on

  • Cladding and panel joints
  • Brick and block movement joints
  • Internal decorators’ caulk
  • Window and door perimeters
  • Sanitary and kitchen joints
  • Floor and skirting junctions

What happens if it’s left?

Refurbishments sometimes budget for new windows when the frames are sound and only the seal has failed. Sound frames often need only a new perimeter seal, which is a much smaller cost. We’ll say so if a frame itself is the problem. For buildings around smaller places like Goodnestone, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

The price depends on how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.

Why us?

  • A fixed quote before work starts
  • Health and safety: CHAS accredited
  • Old sealant cut out, never sealed over
  • Over 20 years of commercial sealing

Read our cost guide and how we’re accredited.

Surface by surface

External facade and movement joints

External movement joints often need primer, depending on the substrate. We prime where the manufacturer specifies, and seal only with a dry joint inside the product’s temperature range.

Snagging before handover

The last pass before handover is where mastic snags are cleared. Snags are cleared room by room, cutting out damaged joints and resealing them properly.

New build and refits around Goodnestone

Goodnestone lies roughly 60 miles out from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and main contractors there need mastic that keeps to the programme. Rainfall across the South East, Goodnestone included, is lower than in many parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, which is why external dates are agreed with the site manager.

Projects at schools like Goodnestone Church of England Primary School work to term dates, so mastic is programmed tightly. New wings at hospitals like St Martins Hospital, 5.7 miles west of Goodnestone, bring long runs of window and panel joints to seal.

Goodnestone is about 7 miles east of Canterbury, in Kent. We cover Goodnestone, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 931 places across Kent fall within our area, including Goodnestone. Sites around London have their own page, roughly 60 miles from Goodnestone.

We cover the CT3 postcode districts. If your site is on The Street, Saddlers Hill and Fitzwalters Meadow or close by, send details and we will quote for mastic packages. Nearby places we also cover include Chillenden (1 mile south-east), Twitham (1 mile north), Well Head (1 mile north), Ratling (1 mile south-west) and Staple (2 miles north-east) for mastic packages. Bigger towns within reach include Canterbury (7 miles west), Margate (11 miles north-east), Dover (8 miles south), Folkestone (12 miles south), Ramsgate (10 miles north-east) and Broadstairs (12 miles north-east).

Local landmarks in Goodnestone

In Goodnestone, that means premises near The Fitzwalter Arms. For rail, the closest station is Adisham station, roughly 1.5 miles west of the centre. Nearby you’ll also find St Martins Hospital (5.7 miles west).

Map of Goodnestone © OpenStreetMap contributors

Maintenance after handover

Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Ask for joint and product checks before the package is urgent
  • Flag uneven or tapered frame gaps early
  • Don’t force external sealing on a damp or frosty day
  • Record the products used in the O&M file

Our 12-month guarantee covers the workmanship from sign-off. Damage by others isn’t a workmanship fault which is why protection after sealing matters.

Snag items left to the last week put handover at risk. A planned close-out through each area as it completes keeps the list short and keeps handover on track.

Questions we are asked in Goodnestone

Is Goodnestone off your patch?

No. Places such as Goodnestone are covered as much as the big towns. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Do you take on work at healthcare sites like St Martins Hospital?

Yes. We work in healthcare settings as well as offices and schools. Each area is agreed with the ward or department and the estates team in advance.

When can the area be used after sealing?

The product and site conditions decide that. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.

Can you clear a mastic snag list before handover?

Yes. We clear snags by redoing joints rather than patching them.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

Do you take on small jobs?

We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.

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.

Diagnose, treat, sign off

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. Rural sites near Goodnestone may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.

  1. Drawings, the sealant specification and your programme come to us for pricing.
  2. A fixed quote sets out the scope, the products and the sequence.
  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. Every joint is prepared, set to depth and sealed with the specified product.
  6. Snags are cleared before handover and completed areas carry our 12-month guarantee.

Getting the site ready

  • For older buildings, check the asbestos register before work
  • Confirm the product named in the specification
  • Let building users know which areas are affected

Quotes

Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.

Get a price

Read more

Accreditations

Trusted. Accredited. Insured.