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

Construction and new-build mastic in Bexon, Kent

Construction mastic in Bexon, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Frame perimeters left unsealed or poorly sealed
  • New external sealant already peeling away
  • A long mastic snag list close to completion
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Construction mastic for businesses in Bexon

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

Construction mastic in Bexon, done properly

On refurbishments, the mastic package normally includes cutting out old sealant as well as sealing new work. Old beads come out completely, as fresh silicone can’t grip old. New and existing joints then get the same preparation. We work on floor and skirting junctions, sanitary and kitchen joints and internal decorators’ caulk, and the usual reasons a site gets in touch are cracks opening in caulked internal joints and old sealant on a refurbishment that needs stripping before new work. A specialist sealant contractor works differently from a general builder: in Bexon, that means joint design, primers and backing rod as standard.

Construction in and around smaller places such as Bexon 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.

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

Location
Bexon (ME9)
Wider area
Kent
Cover
A 12-month guarantee
Price
Quoted before any work starts
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Your questions answered

Can you work around term dates at a campus such as Canterbury Christ Church University?

Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Is Bexon too small for you to travel to?

Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

Do you take on small jobs?

Single areas, one-off repairs and whole buildings are all quoted the same way: details, then a fixed price, then sealing, then a 12-month guarantee.

Can you come in just for snagging?

Yes. Snag-only work is something we take on, cutting out damaged or poor joints and resealing them.

How do we ask for a quote?

You can use the quote form on this site; alternatively, call the office on 01277 525 020 or use the quote form. Photos, drawings or a joint schedule help us quote quickly.

Can you follow the specification on our project?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.

Are you fully insured?

Yes. We’re fully insured, and the certificate can go with your quote.

Building owners, agents and FMs in Bexon

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in Bexon can sit alongside others in a wider programme.

If you look after buildings for someone else, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Signs you need construction mastic in Bexon

A joint without backing rod or bond-breaker often fails early. Fixed to three faces, the sealant rips the first time the joint opens, so depth is controlled with backing rod or bond-breaker tape.

Common reasons buildings call us in:

  • External joints sealed in damp or cold conditions that are now failing
  • Oversized or tapered gaps around new frames
  • Bath and shower joints scraped during the final clean
  • Mastic snags holding up handover

When units on a site such as Kent Science Park (to the north-east of Bexon) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.

Comparing quotes

  • Are they CHAS accredited or on Constructionline?
  • The named product and why it was chosen
  • Their plan for phasing and protecting the area
  • What level of public liability insurance do they hold?

Questions to ask before you appoint anyone

After the work

Once the work is signed off, a little attention goes a long way:

  • Don’t force external sealing on a damp or frosty day
  • Share drawings and the specification as soon as possible
  • Keep scrapers and abrasive pads off new beads
  • Keep product details for future maintenance

At handover, keep the product details with the O&M information. That helps the building owner maintain the joints later, and tells you what to reseal with. We can confirm the handover information you need when we quote.

In wet areas, a weak sanitary joint shows up quickly once the building is occupied. Water gets behind trays, vanity tops and panels. Proper preparation, with the right silicone first time, keeps it off the defects list.

Site staff or a sealant specialist?

The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.

Diagnose, treat, sign off

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself usually takes anything from a day of snagging to several weeks of plot-by-plot sealing on a phased scheme, and we clear our waste as we work. Rural sites near Bexon 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. You receive a fixed quote listing scope, products and phasing.
  3. You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
  4. Areas are sealed plot by plot or floor by floor as the trades hand them over.
  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

  • Send your site hours and access windows
  • Explain the parking and delivery arrangements
  • Move anything stored against the joints

Get a fixed quote

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, call 01277 525 020 or use the quote form.

Get a price

Read more

What sealant work can’t fix

Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be one of these:

  • Specifying the product where the designer hasn’t
  • Oversized gaps that need packing or adjustment by others
  • Joints damaged after sign-off by following trades

If in doubt, phone 01277 525 020 or send photos by email and we will say what we think.

What we seal

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

Construction mastic around Bexon: what changes locally

Bexon 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 external mastic is timed for workable conditions and agreed with the site manager. Bexon is about 37 miles from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and each scheme needs its mastic sealed to programme.

For contractors at a school such as Bredgar Church of England Primary School, sealing has to be finished before term starts. When a college such as Sittingbourne College, 2.2 miles north of Bexon, builds or refurbishes, the mastic package typically has to fit around students and staff.

Bexon is about 3 miles south of Sittingbourne, in Kent. Looking for construction mastic in Bexon? We can help. Bexon is one of 931 places in Kent on our list for mastic packages. For work in that direction, see our London page.

Work on mastic packages is covered throughout ME9, for business premises of every kind. If your building is just outside Bexon, we cover Tunstall (1 mile north), Dungate (2 miles east), Highsted (2 miles north-east), Heart's Delight (2 miles north) and Rodmersham Green (2 miles north-east). Bigger towns within reach include Maidstone (8 miles west), Ashford (13 miles south-east), Sittingbourne (3 miles north), Whitstable (14 miles east), Faversham (8 miles east) and Minster (9 miles north-east).

What’s near Bexon

In Bexon, that means premises near Cromers Wood and Fulston Manor School and the streets around them. The closest station to Bexon is Sittingbourne station, about 2.9 miles north of the centre. Other landmarks nearby include Sittingbourne Heritage Museum (2.8 miles north-east) and Bayford Court (3.1 miles north-east).

Map of Bexon © OpenStreetMap contributors
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