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

Mastic sealing for building owners and managing agents in Goodnestone, Kent

Mastic sealing in Goodnestone, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Mastic failing across several blocks on an estate
  • Movement joints with sealant missing
  • Repeated reactive repairs to the same buildings
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
£5m public liability

Mastic sealing across Goodnestone

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Looking after the joints

Regular inspection catches problems early. Specifically:

  • Include mastic in your cyclical inspections
  • Plan resealing building by building rather than complaint by complaint
  • Keep a record of when each building was resealed
  • Make it easy for occupiers to report draughts

Our workmanship is covered for 12 months, so report any failure in that time. Beyond that, routine checks spot the next round of repairs.

One failed perimeter typically means others on the same building are close so a single failure is a sign to check the rest. Doing them together saves going back again and again.

How we handle mastic sealing in Goodnestone

Most buildings come with mastic joints nobody has looked at since handover, and it ages quietly: window perimeters, door frames, external joints and communal junctions all rely on it. Once it cracks, hardens or comes away, draughts and water find a way in along with complaints. Most enquiries involve the same joint failures repeated across a portfolio and brittle perimeter mastic across a building, across communal entrances and stairwells, window and door perimeters on blocks and shopfronts below residential blocks. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Goodnestone it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

For buildings around smaller places like Goodnestone, we group work so one trip covers it. Photos of each elevation help us quote accurately.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Goodnestone (CT3)
Wider area
Kent
Guarantee
A 12-month guarantee
Quote
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

Looking after buildings in and around Goodnestone

The South East is one of the drier parts of the UK. External mastic still waits for dry faces and the right temperature, and south- and west-facing elevations, which take the most sun and rain, often age first. At about 60 miles from central London, Goodnestone is within reach of the capital. Managed blocks of flats are a big part of commuter-belt property; their frame mastic often ages block-wide.

For a school such as Goodnestone Church of England Primary School, perimeter mastic on windows and doors is a holiday job. Churches, halls and community buildings such as Church of the Holy Cross are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time.

Goodnestone is about 7 miles east of Canterbury, in Kent. Our applicators travel to Goodnestone for work on mastic joints. 931 places across Kent fall within our area, Goodnestone among them. We also cover London, around 60 miles from Goodnestone.

Business premises anywhere in CT3 are within our area. Among the streets we cover are The Street, Saddlers Hill and Fitzwalters Meadow. Sites close to Goodnestone are covered too, including 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). Nearby towns on our patch 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).

Near you in Goodnestone

Recent enquiries here include premises near The Fitzwalter Arms. The closest station to Goodnestone is Adisham station, about 1.5 miles west of the centre. Well-known places in the area include St Martins Hospital (5.7 miles west).

Map of Goodnestone © OpenStreetMap contributors

FAQs: Goodnestone

Can you quote for a block close to Adisham station?

Yes, and several blocks can go on one quote. Photos of each elevation help us quote accurately.

Does your area include sites such as Wingham Industrial Estate, near Goodnestone?

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

Do you do block-wide mastic programmes?

Yes. Each building is inspected, quoted and scheduled in turn, and the programme can start with the worst.

How long do sealant joints last?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Can you take on resealing for a block portfolio?

Yes, that’s exactly who this service is for. Buildings are scheduled in turn so you can plan around it.

Does weather matter for sealant work?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

Will you just go over the old sealant?

No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

What we can’t put right

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:

  • Substrate edges that need repairing first
  • Roof leaks, gutters or failed flashings that aren’t sealant joints
  • Broken glass or failed sealed units

Not sure which it is? You can call the office on 01277 525 020 or email the details over and we will tell you honestly before you book.

Surfaces we seal

  • Balcony and threshold joints
  • Shopfronts below residential blocks
  • External wall and movement joints
  • Window and door perimeters on blocks
  • Communal kitchens and washrooms
  • Communal entrances and stairwells

On site: what to expect

We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. Rural sites near Goodnestone may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.

  1. We inspect each building and record the joints that have failed.
  2. The quote is fixed and split as suits you.
  3. Dates and areas are agreed so occupiers can be told.
  4. Old mastic is removed and the joint faces prepared.
  5. New sealant goes in with backing rod and primer where needed.
  6. We check the finished work and confirm the guarantee.

Before we start on site

  • Tell us your opening times and when work is allowed
  • Let building users know which areas are affected
  • Send asbestos survey details if the building is pre-2000

Request a quote

The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or call the office on 01277 525 020 or email a schedule or drawings to discuss it first.

Ask for a quote

Related advice

What we are called out for in Goodnestone

In communal areas, joints take knocks from bins, bikes, buggies and deliveries, and low-level joints get damaged. Regular cleaning wears them further.

Common reasons buildings call us in:

  • Window mastic that has split and shrunk
  • Worn sealant at communal door frames
  • Draught complaints from residents or tenants
  • Patchy repairs in mismatched sealant

For owners of several units at places like Wingham Industrial Estate, 1.5 miles north of Goodnestone, one programme can deal with frame and external mastic across the lot.

What to look for in a quote

  • Do they follow the manufacturer’s priming guidance?
  • What the guarantee covers, and for how long
  • How they’ll work around occupants
  • Will failed sealant be removed rather than covered?

How to choose a sealant contractor

Quoting for work in Goodnestone

Your fixed quote is built from the real scope. It takes account of:

  • How much there is to seal
  • The product specified
  • Phasing around occupants
  • The site’s rules and procedures

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Details that help us quote

To price the job accurately, we need a clear picture of the site. Send us:

  • What the building is and how it’s used
  • A wide shot and a close-up of the area
  • Specification clauses that apply
  • Anything awkward about access or site hours

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, call the office on 01277 525 020 or send photos by email.

Commercial clients in Goodnestone

Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.

Accreditations

Trusted. Accredited. Insured.