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

Construction Mastic in Bessels Green

We carry out mastic packages for new-build and refurbishment projects in Bessels Green and the surrounding area. Send photographs or drawings for a fixed quote.

  • Sanitary sealant damaged by following trades
  • Inconsistent sealant finishes from plot to plot
  • Oversized or tapered gaps around new frames
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Construction mastic near Bessels Green

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Questions we are asked in Bessels Green

Is a hospital such as Sevenoaks Hospital somewhere you can work?

Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Do you cover business parks and estates near Bessels Green, such as Salters Heath Business Centre?

Yes, sites like Salters Heath Business Centre are within our area, along with the rest of Bessels Green. Photos and a short description are enough for a first look.

Can you handle several sites?

Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.

What happens if the weather stops external sealing?

Weather matters for external sealing: each sealant has a temperature range, and the joint must be dry. We plan external elevations with that in mind.

How do you choose the sealant?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

How soon can the area be used again?

That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we’ll confirm the curing time on the day.

What if there’s asbestos in the old mastic?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

About our construction mastic in Bessels Green

External mastic depends on the weather in a way most internal trades don’t. Each sealant has a temperature range, and damp, frost or condensation on frames stops work. Internal areas can usually carry on while the outside waits. The enquiries we see most involve cracks opening in caulked internal joints and a mastic package split between trades with no clear owner, across floor and skirting junctions, brick and block movement joints and internal decorators’ caulk. One point of contact handles commercial sealant work in Bessels Green from the first photographs to the final walk-round, for single jobs and planned programmes alike.

In the countryside around places like Bessels Green, conversion schemes put new frames into old stone, flint, brick or timber. A product that grips an irregular face, with a colour that suits the building’s character, is usually what’s needed.

Work we carry out comes with a 12-month guarantee. If an installation problem shows up, phone 01277 525 020 or email the details over and we’ll arrange a return visit.

Location
Bessels Green (TN13, TN14)
Region
Kent
Guarantee
12 months on every job
Price
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Aftercare for building managers

Keep the joints in good shape with a few simple steps:

  • Check frame gaps are within the sealant’s range before sealing
  • Get the mastic subcontractor involved early in the programme
  • Put any product change through the designer first
  • Ask cleaners to use soft cloths around fresh sealant

Once an area is sealed, protect it from following trades. New beads should be left to cure before cleaning or decorating nearby.

Snag items left to the last week put handover at risk. Clearing snags area by area spreads the work out and keeps handover on track.

Building owners, agents and FMs in Bessels Green

Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.

Why deal with it now?

Patching snags as they appear can feel quicker than a proper close-out. A planned sweep of each plot or floor catches the lot in one go. Snagging can be priced as a separate stage. One visit to deal with every failing joint makes more sense than several trips to a place like Bessels Green. Send photos of each area and we will quote for the lot.

There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we’ll price your job on its own details.

Why us?

  • Standard and matched colours in many product ranges
  • Public liability insurance in place
  • CSCS-carded applicators
  • RAL and finish matching where the product range allows

Read our cost guide or our accreditations.

Construction mastic around Bessels Green: points for this area

Several hotels sit less than 2 miles from Bessels Green. Hotel extensions and refits typically have to fit around bookings, so mastic dates are tight. At about 19 miles from central London, Bessels Green is within reach of the capital. 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.

New wings at hospitals like Sevenoaks Hospital (1.7 miles east of Bessels Green) bring long runs of window and panel joints to seal. School extensions, at buildings such as Riverhead Infants' School, usually run to the summer holidays, mastic included.

Bessels Green is about 1 mile west of Sevenoaks, in Kent. If you are looking for construction mastic in Bessels Green, we can help, as we do across Kent. Bessels Green is one of 931 places in Kent on our list. There’s a separate page for London, roughly 19 miles from Bessels Green.

We take on mastic packages across the TN13 and TN14 postcode area, whatever the building. Among the streets we cover are High Street, Witches Lane and Cranmer Road, and sites on any of them can send details for a fixed quote. Sites close to Bessels Green are covered too, including Chipstead (1 mile north-west), Riverhead (1 mile north-east), Kippington (1 mile south-east), Dunton Green (1 mile north-east) and Sevenoaks (1 mile east). Nearby towns on our patch include Dartford (12 miles north), Royal Tunbridge Wells (11 miles south-east), Gravesend (14 miles north-east), Tonbridge (8 miles south-east), Northfleet (13 miles north-east) and Swanley (8 miles north).

Around Bessels Green

In Bessels Green, that means premises near Montreal Park, New Beacon School and The King's Head Public House. The closest station to Bessels Green is Sevenoaks station, roughly 1 mile east. A little further out are Kemsing Castle Bank (3.6 miles north-east) and Sevenoaks Hospital (1.7 miles east). Not far away are Betsom's Hill and Dryhill Nature Reserve.

Map of Bessels Green © OpenStreetMap contributors

Diagnose, treat, sign off

We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. If others near Bessels Green need work, visits can be combined, which keeps travel down. 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. We agree with the site team which areas come first.
  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.

Getting the site ready

  • For older buildings, check the asbestos register before work
  • Point out any areas we must not close
  • Tell staff and tenants when we will be in

Quotes

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, speak to us on 01277 525 020 or email us.

Get a quick quote

Read more

Honest limits

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Oversized gaps that need packing or adjustment by others
  • Approving fire stopping as compliant
  • Faulty frames rather than failed sealant

If you’re not sure, just give us a call on 01277 525 020 or email us and we’ll give you a straight answer before you book.

Surfaces we seal

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

When to call us in Bessels Green

On a live site, contamination is the biggest threat to a new joint. Plaster dust, release agents, protective film residue and damp all stop sealant bonding.

Look out for the following:

  • A long mastic snag list close to completion
  • Inconsistent sealant finishes from plot to plot
  • Internal caulk splitting as the building dries out
  • Perimeter gaps outside the sealant’s range

Units on estates such as Salters Heath Business Centre, under half a mile to the south of Bessels Green, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.

Before you book anyone

  • Their plan for phasing and protecting the area
  • What the guarantee covers, and for how long
  • Are they CHAS accredited or on Constructionline?
  • Which product they’ll use, and why it suits the joint

How to choose a sealant contractor

Accreditations

Trusted. Accredited. Insured.