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

Commercial sealant contractors in Hartley, Kent

Sealant work for offices, shops, hotels and other commercial buildings across Hartley, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Frame sealant that has cracked, shrunk or pulled away
  • Layers of sealant, all of them failing
  • Leaks that seem to come through a sealant line
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Commercial sealant contractors for businesses in Hartley

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

Sealant specialists in Hartley

Having a single contact for all your sites makes sealant far simpler to manage. Single jobs, multi-site packages and planned programmes all come to us, handled with the same process each time: details in, a fixed quote back, the sealing done, then our 12-month guarantee. To get a programme moving in Hartley, phone 01277 525 020 or email drawings and photos with the site addresses. If you’re dealing with gaps behind commercial kitchen worktops and sinks and wall and floor joints that have lost their seal, we can help, whatever the surface. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Hartley, preparation and product choice get the time they need.

In Hartley, as anywhere, the first joints to go are usually the ones that work hardest: south-facing perimeters, entrance thresholds and busy washrooms.

Business units in the countryside around places like Hartley are often converted barns, stables or farmyards. Old masonry beside new aluminium, timber and plasterboard gives plenty of joints between materials that move differently, and a sealant colour that suits the building’s character is often part of the brief.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

Place
Hartley (TN17)
Region
Kent
Cover
12 months on our workmanship
Quotes
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Work for main contractors and building owners

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Hartley. One quote can cover more than one site, so there’s one set of paperwork to deal with.

For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules.

FAQs: Hartley

Does your area include sites such as Hartley Dyke Business Centre, near Hartley?

Yes, sites like Hartley Dyke Business Centre are within our area, along with the rest of Hartley. Send details of the unit and the work through our quote form for a quick quote.

Do hotels near Hartley have to close for sealant work?

Almost never. The work is phased so most rooms stay available. The plan is built around your bookings.

Does the weather affect the work?

Outside, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.

Will the building have to shut during the work?

It’s mostly about sequence: areas are phased, access windows agreed and enough washrooms or entrances left in use. Tell us what has to stay open and we will plan the job around it.

What guarantee do you give on resealing?

Our workmanship is guaranteed for 12 months. We are fully insured for public liability as well.

Do you check for asbestos before removing sealant?

It’s possible in older buildings, especially those built before 2000. Before cutting anything out, we ask for the asbestos register or survey, and anything suspect is left until it has been tested.

Is it fine to apply new sealant on top of old?

No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

Signs you need commercial sealant contractors in Hartley

In wet areas the enemy is typically mould rather than movement. Damp, harsh cleaning products and poor ventilation let mould take hold inside the bead, and once established it rarely cleans out. Replacement with a sanitary anti-mould silicone is the lasting answer.

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

  • Weathered facade sealant that no longer flexes
  • Gaps behind commercial kitchen worktops and sinks
  • Movement joints packed with grit and debris
  • Untidy joints in a reception, shop floor or lobby

If you run an office at a site such as Hartley Dyke Business Centre, less than half a mile to the north-east of Hartley, the sealant at reception desks, tea points and frames ages with each fit-out.

What your quote should include

  • The named product and why it was chosen
  • Who will actually carry out the work
  • Their public liability cover
  • The terms of the workmanship guarantee

How to choose a sealant contractor

How a job runs

Before we leave any area, the masking comes off, the area is cleaned and every joint is checked. If an area should be left alone while the sealant cures, we say how long and put signs out. For work around Hartley, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. You send photos, drawings or a list of the joints and areas involved, or we arrange a site visit.
  2. The failure is diagnosed and a fixed quote issued for the work agreed.
  3. We plan around your site hours and access windows, phasing the work where areas have to stay in use.
  4. We strip the failed bead and prepare both faces of the joint.
  5. We fit backing to the right depth, prime where specified and lay the new bead.
  6. We walk the completed areas with you and sign them off under the 12-month guarantee.

Preparing the site

  • Let building users know which areas are affected
  • Tell us which areas need to stay in use
  • For older buildings, check the asbestos register before work

Request a quote

For a fixed quote, phone 01277 525 020 or send photos by email. Our quote form is another easy route.

Ask for a quote

Related advice

Keeping the joints sound

After handover, these steps help:

  • Act on the first lifting edges rather than waiting
  • Look at the sealant around anything that has been moved or replaced
  • Respect the cure time before reopening an area
  • Brief cleaning contractors to avoid scourers and blades on sealant

Put sealant on the planned maintenance checklist. Regular checks pick up small failures before they become leaks. Should something look amiss, you can give us a call on 01277 525 020 or email a schedule or drawings and send a picture.

Occupiers often notice failing sealant before the facilities team does. Planned replacement saves fielding the same complaint again and again.

Why deal with it now?

Putting off a reseal usually moves the cost rather than avoiding it. Water past a frame perimeter or a washroom joint can reach plasterboard, insulation, floor coverings and the ceiling below, and the bill then involves other trades. Resealing while only the sealant has failed keeps the job small. Converted and older buildings near places like Hartley tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Why us?

  • 12 months’ guarantee on every job
  • Constructionline member for supplier checks
  • Work to your specification and the manufacturer’s guidance
  • Fully insured, including public liability cover

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

Surface by surface

Fire-rated seals where specified

Not every penetration suits a sealant. Other products, such as collars, wraps and batts, are specified for different services, and we’ll tell you if the detail calls for something else.

Shop fronts and retail fit-outs

Shop fits put sealant right in front of customers. Counters, display units, shopfront frames and floor trims all need a neat line. We will confirm the colours available for the specified product.

Shops, offices and hotels in and around Hartley

Two named trading, business or retail sites lie within about 3 miles of Hartley. Tenant changes on such sites bring fit-outs, and fit-outs bring new joints. Central London is about 39 miles from Hartley. The South East around the capital has large numbers of business parks, offices and retail centres, especially around the motorway corridors. Firms with branches across the South East can use one contractor for every site.

A hotel such as The George Hotel (to the north-east of Hartley) shows how much sealant a hospitality building has on show, from bathroom joints to the bar. Occupiers with premises at both Hartley Dyke Business Centre and Hawkhurst Station Business Park could have the sealant at each handled under one quote.

Hartley is about 8 miles south-east of Paddock Wood, in Kent. We cover Hartley, with the same fixed quotes and 12-month guarantee as everywhere else. Our Kent coverage takes in 931 places. Brighton is covered too, some 33 miles away.

We cover the TN17 postcode districts. We cover commercial and managed buildings on Hartley Road, Campion Crescent and Hartley Court Gardens. If your building is just outside Hartley, we cover Swattenden (1 mile east), Cranbrook (1 mile north-east), Baker's Cross (2 miles north-east), Gill's Green (2 miles south) and Beal's Green (2 miles south). Nearby towns on our patch include Maidstone (13 miles north), Royal Tunbridge Wells (11 miles west), Tonbridge (13 miles north-west), Kings Hill (14 miles north), Foley Park (14 miles north) and Paddock Wood (8 miles north-west).

Landmarks near Hartley

In Hartley, that means premises near Crane Valley and the streets around them. Well-known places in the area include Benenden Hospital (4.7 miles east) and Sissinghurst Castle (3.8 miles north-east).

Map of Hartley © OpenStreetMap contributors
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