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

Commercial Sealant Contractors in Postling Green

Sealant work for offices, shops, hotels and other commercial buildings in Postling Green and across Kent. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Frame sealant that has cracked, shrunk or pulled away
  • Layers of sealant, all of them failing
  • Damp patches where an external joint has failed
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Commercial sealant contractors for Postling Green sites

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

Commercial mastic work in Postling Green

Failed sealant isn’t always the whole story. Water at a window perimeter might be coming from the frame, the cill or the wall behind. Part of the job is telling you when the fix is something other than sealant, so nobody pays for a reseal that can’t hold. Most enquiries involve untidy joints in a reception, shop floor or lobby and shrunken sealant along kitchen worktops and splashbacks, on external facade joints, floor and threshold joints and washrooms and tea points. Searching for sealant specialists in Postling Green? Mastic Doctor has worked for contractors, FMs and building owners since 2005.

We price commercial jobs in Postling Green from photographs, drawings or a site visit, and the scope is set out in writing.

Rural business units near smaller places such as Postling Green are frequently converted agricultural buildings. Their mix of old walls with new frames, partitions and floors means many joints between unlike materials.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Postling Green (TN25)
Region
Kent
Guarantee
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026

Our process

A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. On site, the work typically takes a few hours to several days on most single sites, depending on joint lengths and access, and our waste is bagged and taken away as we go. If others near Postling Green need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.

  1. Send details through our quote form, or ask for a site visit.
  2. The cause is diagnosed and the scope priced as a fixed quote.
  3. Where parts of the building must stay open, the work is phased.
  4. Every failed bead is removed rather than covered.
  5. A suitable product for each joint goes in at the right depth and is tooled.
  6. A final walk-round, then the 12-month guarantee applies.

Getting the site ready

  • Arrange parking or a loading space
  • Have the specification and drawings to hand
  • Share the asbestos register for older buildings

Quotes

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, call the office on 01277 525 020 or send photos by email.

Get a price

Read more

Do you need commercial sealant contractors in Postling Green?

If sealant tears through its centre, it has failed cohesively. That usually means the joint stretched further than the product could cope with: a bead laid too thin, an over-stretched joint or the wrong movement class. The same product in the same joint tends to fail the same way, which is why we look at the joint design as well.

Most enquiries start with one or more of the following:

  • Smeared sealant across finishes from a rushed job
  • Wall and floor joints that have lost their seal
  • Hardened, chalky sealant on south-facing or exposed elevations
  • Layers of sealant, all of them failing

On a business park such as Evegate Business Park, which lies north of Postling Green, sealant work tends to follow fit-outs: receptions, tea points, washrooms and frame perimeters.

What your quote should include

  • How the existing material will be dealt with
  • Their pre-qualification and accreditations
  • What level of public liability insurance do they hold?
  • What site paperwork they can supply

Questions to ask before you appoint anyone

Why act early in Postling Green

Reactive resealing, a leak at a time, tends to cost more overall than a plan. A planned programme groups work by building or area, cuts repeat visits and gives you a budget figure. We’ll suggest an order, worst sealant joints first. One visit to deal with every failing joint makes more sense than several trips to a place like Postling Green. Photos of every joint help us quote for the whole job.

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Why appoint us

  • Health and safety: CHAS accredited
  • Products installed to the manufacturer’s instructions
  • Coloured sealants to suit the setting, where available
  • Fixed quotes based on photos, drawings or a visit

See how commercial sealant jobs are priced or our accreditations.

What sealant work can’t fix

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Leaking roofs, gutters or flat-roof membranes (those need a roofer)
  • Broken glass or blown double-glazed units
  • Structural cracks or movement the joints weren’t designed for

If in doubt, speak to us on 01277 525 020 or email a schedule or drawings and we will say what we think.

Surfaces we seal

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

FAQs: Postling Green

Can you work at a site such as Evegate Business Park, by Postling Green?

Yes. Estates, retail parks and business parks around Postling Green, Evegate Business Park among them, are all within reach. To start, just speak to us on 01277 525 020 or send photos by email with the unit, the joints involved and your access times.

Can you supply sealant in our brand colour for a site in Postling Green?

Yes, sealants come in a wide range of standard colours, and matching to RAL references, cladding, stone or frames is a common request. Send colour references or photos and we’ll confirm what’s available for the product.

Do you work to architects’ specifications?

Yes. We follow the specification, along with the manufacturer’s installation guidance.

Will the building have to shut during the work?

Phased work can be planned so areas stay in use. Tell us your site hours and access windows and we’ll plan around them.

Are you CHAS accredited and on Constructionline?

Yes. We’re CHAS accredited and a Constructionline member, which helps with supplier vetting.

Do you check for asbestos before removing sealant?

It can, on some older buildings. That’s why we ask for the asbestos information first, and stop if a material is suspect until it’s tested. HSE guidance on asbestos is a useful reference.

When can the area be used after sealing?

Curing time varies by product, and we confirm it on the day.

Frontages, fit-outs and joints in Postling Green

At about 54 miles from central London, Postling Green is within reach of the capital. The commuter belt holds a great many offices, retail parks and business parks. Firms with branches across the South East can use one contractor for every site. Rainfall across the South East, Postling Green included, is lower than in many parts of the UK. External joints still need dry faces and the right temperature, and damp or frosty mornings can hold work up.

Premises within reach of Westenhanger station, 3.5 miles east of Postling Green, often have busy frontages where joints are seen by everyone passing.

Postling Green is about 5 miles west of Hythe, in Kent. Across the TN25 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Across Kent, 931 places are covered, including Postling Green. Our Brighton page has more on work in that area.

Business premises anywhere in TN25 are within our area. Close to Postling Green, our area also takes in Aldington (1 mile north-west), Stonestreet Green (1 mile north-west), Bonnington (1 mile west), Clap Hill (1 mile north-west) and Aldington Frith (2 miles north-west). A short drive away, we cover Ashford (6 miles north-west), Canterbury (15 miles north), Dover (15 miles east), Folkestone (9 miles east), Hythe (5 miles east) and Tower Hamlets (15 miles east).

Near you in Postling Green

In Postling Green, that means premises near Walnut Tree Inn and Poulton Wood, among other places. For rail, the closest station is Westenhanger station, roughly 3.5 miles east. A little further out are William Harvey Hospital (4.6 miles north-west) and Lympne Castle (2.8 miles east). The countryside around Postling Green includes Hatch Park.

Map of Postling Green © OpenStreetMap contributors

How the job changes by surface

Movement joints in walls and floors

Floor joints that take trolleys or forklifts need a tougher filler or sealant. The choice comes down to how much the joint moves and what runs over it.

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.

What sets the cost

A fixed quote reflects the actual work. It allows for:

  • The total length or number of joints
  • Access and working height
  • Removal of failed or old sealant
  • Distance, for remote addresses

The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site requirements come into it too.

What we need to price the job

Good information means a firmer quote. When you get in touch, include:

  • The asbestos register, for older buildings
  • Whether the building will be occupied during the work
  • Anything awkward about access or site hours
  • Any dates the work must fit around

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, call 01277 525 020 or email us.

Accreditations

Trusted. Accredited. Insured.