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

Construction and new-build mastic in Gold Street, Kent

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

  • Missed perimeter joints on a new elevation
  • Different trades sealing to different standards
  • Sanitary sealant damaged by following trades
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Construction mastic near Gold Street

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

Construction mastic in Gold Street, done properly

Buyers, tenants and clients notice sealant lines long before they notice the structure. A smeared bead round a window or a gap behind a worktop ends up on the snag list, and every return visit costs time. Our aim is joints that pass at the first inspection. We work on cladding and panel joints, floor and skirting junctions and sanitary and kitchen joints, and the failures we’re asked to look at most are frame perimeters left unsealed or poorly sealed and frame gaps too wide for sealant alone. For commercial sealant work in Gold Street, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

Construction in and around smaller places such as Gold Street 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.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Gold Street (DA12)
Region
Kent
Guarantee
A 12-month guarantee
Quote
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

Signs you need construction mastic in Gold Street

Three-sided adhesion is a frequent fault on new work. Fixed to three faces, the sealant rips the first time the joint opens, so depth is controlled with backing rod or bond-breaker tape.

What tends to prompt an enquiry:

  • Perimeter gaps outside the sealant’s range
  • Inconsistent sealant finishes from plot to plot
  • Early adhesion failures on new external joints
  • Failed sealant in an existing building being refurbished

Older buildings in the area around Gold Street, such as Cobham College, which lies north-east of Gold Street, need care when sealed: the product has to suit soft or historic materials.

Comparing quotes

  • Proof of insurance
  • Do they follow the manufacturer’s priming guidance?
  • How they’ll work around occupants
  • How long is the guarantee, and what does it include?

Choosing a commercial sealant contractor

Cost factors for mastic packages

The price varies from site to site. It mainly depends on:

  • Access and working height
  • Joint width, depth and condition
  • Specialist products, such as fire-rated or hygienic sealants
  • Travel to remote or island sites

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

What we need to price the job

The more we know, the firmer the quote. Helpful details to send:

  • Drawings or a marked-up plan, if available
  • Anything awkward about access or site hours
  • Asbestos survey details if the building is older
  • The type of building and who uses it

To get a fixed quote, give us a call on 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. You can also send details through our quote form.

Building owners, agents and FMs in Gold Street

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

Mastic packages on Gold Street sites

Gold Street is in the South East, one of the UK’s drier regions. Winter mornings still bring frost and condensation on frames and panels, so we time external mastic for dry faces and agree it with the site team. At about 22 miles from central London, Gold Street is within reach of the capital. 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.

Projects at schools like Cobham Primary School work to term dates, so mastic is programmed tightly. For contractors refurbishing units at places like Bowes Industrial Centre, 2.2 miles south-west of Gold Street, the mastic covers cladding panels, roller-door and window perimeters.

Gold Street is about 3 miles south of Gravesend, in Kent. Anywhere in DA12, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Across Kent, 931 places are covered, including Gold Street. London is covered too, around 22 miles from Gold Street.

Postcode districts covered here: DA12. Close to Gold Street, our area also takes in Sole Street (1 mile west), Round Street (1 mile north-west), Henley Street (1 mile south-east), Luddesdown (1 mile south-east) and Meopham (1 mile south-west). Bigger towns within reach include Maidstone (10 miles south-east), Sittingbourne (15 miles east), Dartford (8 miles north-west), Sevenoaks (11 miles south-west), Gravesend (3 miles north) and Tonbridge (14 miles south).

What’s near Gold Street

In Gold Street, that means premises near The Railway Inn, Camer Park Country Park and Meopham School, among other places. Gold Street has its own railway station: Sole Street station. A little further out are Gravesham Community Hospital (4 miles north) and Gravesham Museum (3.9 miles north). Open spaces near Gold Street include Gad's Hill and Ranscombe Farm.

Map of Gold Street © OpenStreetMap contributors

Looking after the joints

Problems stay small when the joints are checked regularly. Specifically:

  • Bring the mastic contractor in after the last trades are through
  • Use the product the specification names
  • Ask for joint and product checks before the package is urgent
  • Brief following trades on areas that have been sealed

Any damage after we’ve finished should go on the snag list straight away. We can return to clear snags before handover, priced as part of the package or separately.

Frames with gaps too wide for sealant need sorting before the mastic goes on. Filling a wide gap with sealant alone sets up a failure, so the installer needs to correct it first. We flag them as soon as we see them.

FAQs: Gold Street

Can you work on a hospital site such as Gravesham Community Hospital?

Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.

Is Gold Street off your patch?

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.

Are you fully insured?

Yes. We’re fully insured, including public liability cover.

Do you seal on top of existing sealant?

No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.

Will you stick to the specified products?

Specification first, then the maker’s instructions. Preparation, backing and depth follow the product guidance.

Do your applicators hold CSCS cards?

We are CHAS accredited and a Constructionline member, and our applicators hold CSCS cards. Tell us what site paperwork you need and we’ll confirm with the quote.

What will the job cost?

It depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.

Diagnose, treat, sign off

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. Smaller jobs around Gold Street can be grouped with others nearby. You’ll have a fixed quote before work starts.

  1. We start with the drawings, specification and programme.
  2. Quantities are measured and a fixed price returned.
  3. The sequence is agreed with the site manager.
  4. Each area is sealed when it’s released.
  5. Joints are prepared, backed and sealed to the specification.
  6. After snagging, the work is handed over under our 12-month guarantee.

What we need from you

  • Send any specification or drawings in advance
  • Send asbestos survey details if the building is pre-2000
  • Point out parking and an unloading spot

Get a fixed quote

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.

Get a quick quote

Related advice

What the job involves on each surface

Internal decorators’ caulk

Acrylic caulk fills internal gaps around trims, boards and frames ahead of decorating. It’s paintable and suits gaps that don’t move.

Fire-rated sealant where specified

Fire-rated sealant forms part of some packages, installed to the product’s tested detail where it is specified. Fire stopping design belongs to the designer and building control and we install what’s specified.

Accreditations

Trusted. Accredited. Insured.