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

Commercial sealant contractors in Bonnington, Kent

Commercial sealant contractors in Bonnington, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Smeared sealant across finishes from a rushed job
  • Shrunken sealant along kitchen worktops and splashbacks
  • Earlier reseals applied straight onto the failed bead
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Commercial sealant contractors in Bonnington

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

What the job involves on each surface

Movement joints in walls and floors

Movement joints in walls and floors let the structure expand and contract. Failed seals let grit and water in, and the edges start to suffer. The joints are resealed using a sealant matched to the movement and any traffic.

Washrooms and toilets

Around WCs, urinals, vanity tops, IPS panels and cubicles, sealant is wet most of the day. Old sealant comes out and a sanitary silicone with anti-mould additives goes in.

Commercial mastic work in Bonnington

Some sealants used before 2000 can contain asbestos, so older stock needs a check first. We ask to see the asbestos register or survey before old sealant is disturbed, since managing asbestos is the dutyholder’s responsibility. If a material is suspected, work stops until it’s tested, and we don’t remove asbestos-containing materials ourselves. If you have smeared sealant across finishes from a rushed job and gaps behind commercial kitchen worktops and sinks, we can help, on kitchen worktops and splashbacks, movement joints in walls and floors and external facade joints alike. One point of contact handles commercial sealant work in Bonnington from the first photos to the final walk-round, whether it’s one building or several.

The most common commercial job in Bonnington is resealing joints that have simply reached the end of their life: split, chalky or peeling, with leaks or mould starting behind it.

A job in a smaller place like Bonnington is usually a single building. We’ll want a full list and photos first, so the right products come on the day and nothing waits for a second trip.

Work we carry out in Kent comes with a 12-month guarantee. If an installation problem shows up, call the office on 01277 525 020 or email drawings and photos and we will arrange a return visit.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Bonnington (TN25)
Wider area
Kent
Guarantee
12 months on our workmanship
Price
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026

When to bring in a specialist

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.

Redoing a failed joint usually costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

What we can’t put right

Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:

  • Faulty windows rather than failed perimeter sealant
  • Old mastic that tests positive for asbestos
  • Roof leaks that only look like a joint problem

If you are not sure, just speak to us on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer before you book.

Surfaces we seal

  • Window and door perimeters
  • Washrooms and tea points
  • Kitchen worktops and splashbacks
  • Floor and threshold joints
  • External facade joints
  • Movement joints in walls and floors

When to call us in Bonnington

Outside, sunlight and rain wear sealant down year after year. Sunny elevations dry the surface out and exposed ones take driving rain. Once it stiffens, the joint opens up at the next big temperature swing.

These are often picked up first by site or facilities staff:

  • Mouldy silicone around WCs, urinals and vanity tops
  • Smeared sealant across finishes from a rushed job
  • External beads that have gone brittle and cracked
  • Greasy, split joints in a kitchen or tea point

A business with units at Bliby Business Centre and Evegate Business Park needn’t use two contractors for its sealant.

Before you book anyone

  • Will CSCS-carded applicators be on site?
  • What the guarantee covers, and for how long
  • Health and safety accreditation such as CHAS
  • Their approach to joint depth and backing

Our contractor checklist

Diagnose, treat, sign off

A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. On site, the work usually takes part of a day on a small job and longer where several buildings or phases are involved, and our waste is bagged and taken away as we go. Smaller jobs around Bonnington can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.

  1. First, details reach us through the quote form or a site visit.
  2. The cause is diagnosed and the scope priced as a fixed quote.
  3. Work is phased around your occupiers where areas need to stay in use.
  4. Old sealant is cut out completely, never sealed over.
  5. Each joint gets a suitable sealant, laid to depth and tooled.
  6. A final walk-round, then the 12-month guarantee applies.

What we need from you

  • Send any specification or drawings in advance
  • Point out parking and an unloading spot
  • Tell us what induction or permit system the site runs

Quotes

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call 01277 525 020 or email us.

Get a price

Related advice

Aftercare for building managers

To get the most from the new sealant:

  • Make sure contractors see the asbestos survey before cutting out old mastic
  • Look at the sealant around anything that has been moved or replaced
  • Respect the cure time before reopening an area
  • Keep abrasive pads and scrapers off resealed joints

Put sealant on the planned maintenance checklist. A periodic look catches splits and lifting edges early, with external elevations and wet areas first in line. Should something look amiss, you can call the office on 01277 525 020 or send photos by email and send a picture.

Each spell of wet weather pushes more water through an open joint. Behind a panel or frame, that water can sit unseen for a long time. Catching it at the sealant stage avoids the bigger repair.

Frontages, fit-outs and joints in Bonnington

At least three named trading, business or retail sites lie within about 3 miles of Bonnington. Tenant changes on such sites bring fit-outs, and fit-outs bring new joints, often in a colour the occupier specifies. Bonnington lies roughly 53 miles out from central London. This part of the South East is dense with business parks and out-of-town offices. Firms with branches across the South East can use one contractor for every site.

Parks like Bliby Business Centre, 1.8 miles north-west of Bonnington, see tenants come and go, and every move-in brings joints to seal. For premises near Ham Street station, which lies west of Bonnington, footfall is part of the plan: work is phased so shops and offices keep trading.

Bonnington is about 5 miles south-east of Ashford, in Kent. Bonnington sits inside our coverage and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. We work across 931 places in Kent. Brighton is covered too, some 49 miles away.

Work on sealant joints is covered throughout TN25, whatever the building. Among the streets we cover are Cherry Orchard Lane and Bourne Road. We also cover Aldington (1 mile north-east), Clap Hill (1 mile north-east), Aldington Frith (1 mile north-west), Stonestreet Green (1 mile north-east) and Postling Green (1 mile east). Bigger towns within reach include Ashford (5 miles north-west), Canterbury (15 miles north-east), Folkestone (10 miles east), Hythe (7 miles east), Hawkinge (10 miles east) and Wincheap (14 miles north-east).

Near you in Bonnington

Around Bonnington, our work takes us to commercial buildings near Poulton Wood and Walnut Tree Inn. The closest station to Bonnington is Ham Street station, about 3.6 miles west of the centre. A little further out are William Harvey Hospital (3.8 miles north) and Lympne Castle (4.2 miles east). Not far away are Hatch Park.

Map of Bonnington © OpenStreetMap contributors

Questions about Bonnington

Is Bliby Business Centre, near Bonnington, within your area?

Yes. Our area takes in Bonnington and its surroundings, with estates and business parks such as Bliby Business Centre included. To start, just ring 01277 525 020 or send photos by email with the unit, the joints involved and your access times.

Do you offer colour-matched sealant for buildings in Bonnington?

Yes, sealants come in a wide range of standard colours, and matching to RAL references, cladding, stone or frames is a common request. The quote lists the colours the product is made in.

How is commercial sealant work priced?

The main factors are metres of joint, removal, access, the product and how many phases there are. For a fixed quote, send details through our quote form.

Can you supply RAMS and insurance details?

We’ll confirm the paperwork you need, such as RAMS, an insurance certificate or CSCS details, with the quote. We hold CHAS accreditation and Constructionline membership and carry five million pounds of public liability insurance.

Who decides which product is used?

A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

What about asbestos in old mastic?

It’s possible in older buildings, especially those built before 2000. Before cutting anything out, we ask for the asbestos register or survey, and if something is suspected, work stops until it’s tested.

Can you work to our specification?

Yes. Include it with the drawings when you ask for a quote, and we will price the work to it.

Accreditations

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