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

Construction Mastic in Bowmans

Mastic packages for new-build and refurbishment projects throughout Bowmans and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Frame gaps too wide for sealant alone
  • Old sealant on a refurbishment that needs stripping before new work
  • Frame perimeters left unsealed or poorly sealed
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
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Construction mastic for businesses in Bowmans

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

About our construction mastic in Bowmans

On a new build, the mastic package is one of the last trades through each area. Mastic Doctor takes on mastic packages for main contractors and developers, sealing plot by plot or floor by floor as areas are released. If you have cracks opening in caulked internal joints and frame perimeters left unsealed or poorly sealed, we can help, on sanitary and kitchen joints, brick and block movement joints and window and door perimeters alike. One point of contact handles commercial sealant work in Bowmans from the first photos to the final walk-round, whether it’s one building or several.

For a contractor on a smaller site near Bowmans, one mastic visit at the right stage saves return trips. Tell us when scaffold comes down and when decoration finishes, and we’ll plan around those stages.

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

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Bowmans (DA1, DA2, DA5)
Region
Kent
Guarantee
12 months on every job
Quotes
A fixed quote before we start
Call
01277 525 020
Last updated
3 November 2026

Looking after the joints

Cleaning and maintenance staff play a part too. Pass these on to them:

  • Bring the mastic contractor in after the last trades are through
  • Share drawings and the specification as soon as possible
  • Don’t force external sealing on a damp or frosty day
  • Record the products used in the O&M file

At handover, keep the product details with the O&M information. 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.

Construction mastic in Bowmans: the local picture

Bowmans is about 13 miles from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and each scheme needs its mastic sealed to programme. A 2-mile radius around Bowmans takes in several hotels. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades.

University estates such as University of Greenwich (to the east of Bowmans) tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal. New units and refits on sites such as Tower Retail Park (0.8 miles north of Bowmans) need their panel and perimeter joints sealed to the specification. For contractors at a school such as Wentworth Primary School, sealing has to be finished before term starts.

Bowmans is about 2 miles west of Dartford, in Kent. Commercial clients in Bowmans can call on us for mastic packages, as part of our coverage of Kent. Bowmans is one of 931 places we cover in Kent for mastic packages. Our London page has more on work in that area (13 miles or so).

We take on mastic packages across the DA1, DA2 and DA5 postcode area, for business premises of every kind. Among the streets we cover are Swan Lane, Dale Road and Ross Road, and sites on any of them can send details for a fixed quote. With the A2018 nearby, Bowmans is easy to get to with materials and equipment. We also cover Wilmington (1 mile south), Crayford (1 mile north), Coldblow (1 mile west), Joyden's Wood (1 mile south-west) and Barnes Cray (1 mile north-east). Nearby towns on our patch include Sevenoaks (11 miles south), Gravesend (9 miles east), Northfleet (7 miles east), Swanley (3 miles south), Kings Hill (15 miles south-east) and Swanscombe (5 miles east).

Landmarks near Bowmans

Recent enquiries here include premises near Wilmington Grammar School for Girls, Bird in Hand pub and St Columba's Catholic Boys' School, among other places. The nearest railway station is Crayford station, roughly 0.6 miles north of the centre. A little further out are Stone Castle (4.1 miles east) and West Hill Hospital (1.3 miles east). The countryside around Bowmans includes Wansunt Pit.

Map of Bowmans © OpenStreetMap contributors

Your questions answered

Is Bowmans too far out for you?

Not at all. Bowmans is within our area. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Could you schedule work at a campus like University of Greenwich for the vacation?

Yes. We plan campus work around teaching, exams and residence turnarounds. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

How do you work with the site programme?

We seal plot by plot or floor by floor as areas are released. The sequence is settled with your site team and updated as the programme moves.

Can staff carry on working while you are here?

In most cases, yes. We phase the work so most of the building stays in use, with each area protected and signed.

Can you send site paperwork?

Requirements differ from site to site, so tell us what you need and we’ll confirm it when we quote.

Does weather matter for sealant work?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.

What guarantee comes with a mastic package?

Our workmanship carries a 12-month guarantee from sign-off. Damage by others after we’ve finished isn’t covered.

Work for main contractors and building owners

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules.

On site: what to expect

Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. For a job in Bowmans, the main thing is a clear picture of the work, so send photos of each area. You will then get a fixed price for the work.

  1. Drawings, specification and programme come to us.
  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. Every joint is cleaned, set to depth and sealed with the specified product.
  6. After snagging, the work is handed over under our 12-month guarantee.

Preparing the site

  • Let us know about inductions and permits
  • Warn occupants and staff about the work
  • Tell us your opening times and when work is allowed

Getting a fixed quote

Send us photographs, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.

Ask for a quote

Related advice

When to bring in a specialist

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.

Different surfaces, different methods

Window and door perimeters

Gaps around frames have to be within the sealant’s range. Gaps outside the product’s range are raised with the site team.

Fire-rated sealant where specified

Fire-rated sealant is one type of fire-stopping product. Other products are used for some services and gaps. Record requirements are agreed with the quote.

What sets the cost

Your fixed quote is built from the real scope. It allows for:

  • Distance, for remote addresses
  • Removal of failed or old sealant
  • Working within restricted access windows
  • The size and state of each joint

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.

Details that help us quote

The more we know, the firmer the quote. When you get in touch, include:

  • Asbestos survey details if the building is older
  • When you need the work done
  • The postcode of the building
  • Any specification or named product

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.

Accreditations

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