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

Sealant applicators in Lenham Forstal

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

  • A top-up bead over failed sealant, now lifting
  • Mouldy silicone around WCs, urinals and vanity tops
  • Window and door perimeter joints that have cracked open
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Commercial sealant contractors in Lenham Forstal

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

On site: what to expect

Inspect, seal, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. Jobs in and around smaller places like Lenham Forstal are normally planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.

  1. We start with the evidence: photos, drawings or a look on site.
  2. You get a fixed quote covering removal, preparation and the new sealant.
  3. We agree the order of work, access windows and site hours with you.
  4. The failed sealant comes out and the faces are prepared, with primer where required.
  5. Depth is set with backing, then the sealant is applied, tooled and the area tidied.
  6. We hand back each area with its cure time and our 12-month guarantee.

Preparing the site

  • Agree which areas must stay open
  • Explain the parking and delivery arrangements
  • Flag any permit to work we’ll need

Quotes

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, phone 01277 525 020 or email the details over.

Get a quick quote

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Commercial sealant contractors for commercial buildings in Lenham Forstal

Mastic Doctor has been sealing joints for businesses and contractors since 2005: CHAS accredited, Constructionline member, five million pounds of public liability insurance and CSCS-carded applicators. If your site needs RAMS, an insurance certificate or CSCS details, say so and we will confirm with the quote. If you’re dealing with external beads that have gone brittle and cracked and frame sealant that has cracked, shrunk or pulled away, we can help, on window and door perimeters, floor and threshold joints and washrooms and tea points alike. A specialist sealant contractor works differently from a general builder: in Lenham Forstal, that means joint design, primers and backing rod as standard.

We price commercial jobs in Lenham Forstal from photos, drawings or a site visit, with the scope listed so everyone knows what’s included.

In and around smaller places such as Lenham Forstal, the commercial buildings we are asked about are often pubs, shops, village halls and barns converted to offices. Each has kitchens, washrooms and frames whose joints need renewing in time.

Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Lenham Forstal (ME17)
Wider area
Kent
Cover
12 months on every job
Price
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026

Surface by surface

Window and door perimeters

Inside, cracked sealant around frames and window boards is common. We use a paintable product where decorating follows and a silicone where it doesn’t, in a shade that suits the frame.

Facade and cladding joints

On a facade, a failed joint is often only visible close up. Photos from a closer viewpoint help us price.

Questions we’re asked in Lenham Forstal

Is Lenham Forstal too far out for you?

Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Can you match sealant colours for premises in Lenham Forstal?

Yes. Colour matching to frames, cladding, stone and shop-fit finishes is a regular part of the work. The quote lists the colours the product is made in.

Can you work to our specification?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.

How long does a typical visit take?

The duration is planned around your programme and the access we’re given. You’ll have an expected duration with the quote.

Are you CHAS accredited and on Constructionline?

Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.

Can areas stay open during the work?

It’s mostly about sequence: areas are phased, access windows agreed and enough washrooms or entrances left in use. Let us know what can’t close and we’ll work around it.

Does weather matter for sealant work?

Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

Sealant on show in Lenham Forstal’s commercial buildings

Lenham Forstal has a number of hotels close by, all within 2 miles. In hotels, sealant shows everywhere, from bathroom joints to reception counters, so colour and a clean finish matter. Lenham Forstal is in the South East, one of the UK’s drier regions. That helps, but frost and condensation on glass and coated frames still stop outside sealing on some winter mornings.

Shops and cafés around stations like Lenham station (to the north-west of Lenham Forstal) trade from early, so work is timed around them.

Lenham Forstal is about 8 miles north-west of Ashford, in Kent. Looking for commercial sealant contractors in Lenham Forstal? We can help, as we do across Kent. We work across 931 places in Kent, large and small. Our London page has more on work in that area, about 41 miles away.

Postcode districts covered here: ME17 for sealant joints. Buildings on The Forstal, Mount Castle Lane and Burgess Fields are within our area. Close to Lenham Forstal, our area also takes in Lenham Heath (1 mile south-east), Charing Heath (1 mile south-east), Stonebridge Green (1 mile south), Leadingcross Green (2 miles north-west) and Lenham (2 miles north-west). Bigger towns within reach include Maidstone (10 miles west), Ashford (8 miles south-east), Canterbury (15 miles east), Sittingbourne (9 miles north), Faversham (9 miles north-east) and Minster (14 miles north).

Local landmarks in Lenham Forstal

Around Lenham Forstal, our work takes us to commercial buildings near Kiln Wood and the streets around them. For rail, the closest station is Lenham station, about 1.7 miles north-west. Well-known places in the area include Coldbridge Castle (2.3 miles south-west).

Map of Lenham Forstal © OpenStreetMap contributors

Honest limits

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Suspect materials that need testing and specialist removal
  • Misted, cracked or failed glazing units (a glazier’s job)
  • Roof leaks that only look like a joint problem

If in doubt, phone 01277 525 020 or email the details over and we’ll say what we think.

Where we work in Lenham Forstal

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

What sets the cost

We price every job individually. The things that drive the figure:

  • Induction, permit and paperwork requirements
  • Working within restricted access windows
  • The size and state of each joint
  • How much there is to seal

Access can matter as much as the joints themselves: 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.

Before you send an enquiry

It doesn’t need to be a full survey. These details are enough to start:

  • Approximate linear metres or a joint schedule
  • Specification clauses that apply
  • Access details, including height
  • The site address and postcode

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to speak to us on 01277 525 020 or email drawings and photos with what you know.

Why it’s worth doing now in Lenham Forstal

Spot repairs have their place. If the rest of the bead is the same age and product, though, it’s normally close behind. We can price both options so you can decide on the facts. Around Lenham Forstal, it’s better to renew all the failing joints at once. Send photos of each area and we will quote for the lot.

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

Why appoint us

  • 12 months’ guarantee on every job
  • CHAS accredited
  • One contact handling all your sites
  • Joints cleaned back to sound surfaces

Read our cost guide or our accreditations and insurance.

Signs you need commercial sealant contractors in Lenham Forstal

No sealant joint is permanent. How long one lasts depends on the movement it takes, its exposure to sun and weather, the cleaning regime, the traffic and the product itself. On a busy commercial site several of those pile up at once, which is why regular inspection pays.

Site and facilities staff are often the first to spot these:

  • A top-up bead over failed sealant, now lifting
  • Black mould through washroom sealant that won’t clean off
  • Water staining near frames, panels or ceilings
  • Shrunken sealant along kitchen worktops and splashbacks

In hotels such as Chilston Park Hotel, 1.1 miles west of Lenham Forstal, refurbishments typically mean bathroom, bar and reception joints where a matched sealant colour has to sit with the finishes.

Comparing quotes

  • Proof of insurance
  • The named product and why it was chosen
  • How they handle RAMS and site documents
  • What the guarantee covers, and for how long

Questions to ask before you appoint anyone

Accreditations

Trusted. Accredited. Insured.