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

Mastic contractors in Basted

Mastic packages for new-build and refurbishment projects throughout Basted and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Caulk cracking where joints are moving more than expected
  • New external sealant already peeling away
  • A long mastic snag list close to completion
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Construction mastic near Basted

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

Construction mastic in Basted

Mastic Doctor has been a subcontractor on construction projects for over 20 years. Quantities come off the drawings, the sequence is agreed with the site manager and the work follows the trades. For construction mastic on a scheme in Basted, send drawings through our quote form, or phone or email us to talk it through. If you have window and door perimeters that won’t pass inspection and perimeter gaps outside the sealant’s range, we can help, on window and door perimeters, cladding and panel joints and brick and block movement joints alike. One point of contact handles commercial sealant work in Basted from the first photographs to the final walk-round, for single jobs and planned programmes alike.

Sites around smaller places like Basted can be a fair drive from suppliers, so we come with everything the package needs, timed to the stage the job has reached. Drawings, photos and the programme let us give a fixed quote.

We sign every job off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.

Place
Basted (TN15)
Wider area
Kent
Cover
12 months on our workmanship
Quotes
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

What happens if it’s left?

Getting the mastic contractor involved early pays off. We can check joint widths, flag frames with gaps that won’t seal and confirm products against the specification rather than at the snagging stage. Called in at the end, the same issues surface during handover. Converted and older buildings near places like Basted tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.

The product called for affects the cost, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

Why choose Mastic Doctor in Basted

  • 12-month guarantee on workmanship
  • Coloured sealants to suit the setting, where available
  • Commercial sealant work since 2005
  • Failed material removed, not covered up

Read how commercial sealant jobs are priced and how we’re accredited.

After the work

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

  • Keep finished joints away from paint, plaster and scrapers
  • Share drawings and the specification as soon as possible
  • Ask installers to correct oversized gaps first
  • Use the product the specification names

Record which products went where in the handover file. That helps the building owner maintain the joints later and avoids guesswork when joints are renewed. We can confirm the handover information you need when we quote.

External joints sealed in poor weather are a common cause of early failure. Waiting for a dry joint and the right temperature is better than redoing work so external sequencing builds in some flexibility.

Your questions answered

Do you cover business parks and estates near Basted, such as Bourne Enterprise Centre?

Yes. Estates, retail parks and business parks around Basted, Bourne Enterprise Centre among them, are all within reach. To start, just call the office on 01277 525 020 or email us with the unit, the joints involved and your access times.

Do you take on work at healthcare sites like Sevenoaks Hospital?

Yes, provided the work is planned with the site’s estates team. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

When is resealing likely to be due?

It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.

Do you work in Basted?

Yes. We cover Basted, within our coverage of Greater London, South East England and Scotland. To discuss a job, ring 01277 525 020 or send details through our quote form.

Can you work plot by plot or floor by floor?

Our work is sequenced around the programme. Each plot, floor or elevation is sealed when it’s ready.

Do you offer coloured sealant?

It depends on the product specified. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.

Can staff carry on working while you are here?

Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.

What we are called out for in Basted

Frames installed with uneven gaps make perimeter sealing harder. Sealant has a range of joint widths it can cope with. Better to raise it at the start than seal a joint that’s bound to fail.

If one of these sounds familiar, it’s time for a closer look:

  • A mastic package split between trades with no clear owner
  • Early adhesion failures on new external joints
  • Existing joints on a refurb that need cutting out and resealing
  • Sanitary sealant damaged by following trades

Recladding or extending a unit at a site like Bourne Enterprise Centre, 1 mile to the north of Basted, brings panel joints and frame perimeters into the programme.

Before you book anyone

  • Health and safety accreditation such as CHAS
  • What level of public liability insurance do they hold?
  • How they handle RAMS and site documents
  • Whether primer will be used where the manufacturer specifies it

Choosing a commercial sealant contractor

Honest limits

A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be any of the following:

  • Joint design decisions that belong to the architect or engineer
  • Glazing units that are cracked or misted
  • Frame gaps too wide for sealant, which the installer needs to correct

If you are not sure, just call 01277 525 020 or use the quote form and we’ll give you a straight answer before you book.

Surfaces we seal

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

Diagnose, treat, sign off

We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. Jobs in and around smaller places like Basted are normally planned as a single visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.

  1. First we look at the scope on site or from drawings.
  2. You receive a fixed quote covering scope, products and sequence.
  3. Paperwork is agreed and applicators are inducted on site.
  4. Sealing follows the programme as areas are released.
  5. Problems we find, such as oversized gaps, are raised straight away.
  6. Final snagging is completed and the 12-month guarantee applies.

Before we start on site

  • Send any specification or drawings in advance
  • Let building users know which areas are affected
  • Tell us your opening times and when work is allowed

Ask for a quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or email the details over.

Get a quick quote

Related advice

General trades versus a specialist

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

Sites and facades in and around Basted

Basted lies roughly 23 miles out from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, which keeps mastic packages in demand. The South East is one of the drier parts of the UK. Winter mornings still bring frost and condensation on frames and panels, which is why external dates are agreed with the site manager.

Hospital estates such as Sevenoaks Hospital (to the west of Basted) tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan. When a school such as Borough Green Primary School is extended or refurbished, the mastic package is often squeezed into the holidays.

Basted is about 5 miles east of Sevenoaks, in Kent. Anywhere in TN15, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Basted is one of 931 places in Kent on our list. For work in that direction, see our London page, about 23 miles away.

Postcode districts covered here: TN15 for mastic packages. For a building on Basted Mill and Plough Hill or nearby, we can quote for mastic packages. Close to Basted, our area also takes in Claygate Cross (1 mile south-east), Crouch (1 mile south-east), Borough Green (1 mile north), Platt (1 mile north-east) and Plaxtol (1 mile south). Nearby towns on our patch include Maidstone (10 miles east), Dartford (12 miles north), Sevenoaks (5 miles west), Royal Tunbridge Wells (10 miles south), Gravesend (11 miles north) and Tonbridge (6 miles south).

Local landmarks in Basted

We work on buildings around The Plough Public House, Wrotham School and Ivy Hatch Nature Reserve. Basted’s nearest station is Borough Green & Wrotham station, about 0.9 miles north of the centre. Nearby you will also find Ightham Court (1.3 miles north-west) and Sevenoaks Hospital (4.8 miles west).

Map of Basted © OpenStreetMap contributors
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