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

Mastic sealant contractors in Charing Heath

Planning work on a mastic joint in Charing Heath? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Old repairs sealed over failed mastic
  • Cracked, hardened mastic round windows on a block
  • Draughts at frames across a block
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 accredited
£5m public liability

Mastic sealing for businesses in Charing Heath

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Different surfaces, different methods

External movement joints

The joint width has to suit the movement and the sealant’s capability, often around 2:1 width to depth, as the manufacturer advises.

Planned maintenance

Planned resealing replaces emergency callouts and keeps budgets predictable.

Mastic sealing in Charing Heath

Owners and agents typically inherit a building’s mastic rather than choose it and it slowly wears out: it sits round windows and doors, along external joints and through communal areas. Once it cracks, hardens or comes away, draughts and water find a way in along with complaints. We work on shopfronts below residential blocks, window and door perimeters on blocks and communal entrances and stairwells, and what we’re called in for most is window mastic that has split and shrunk and worn sealant at communal door frames. Facilities teams, main contractors and managing agents in Charing Heath tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

For owners with a single building near Charing Heath, we plan to finish in one visit where possible. Send photographs of the frames and joints and we will give a fixed quote.

A 12-month guarantee applies to all our work in Kent. If an installation problem shows up, phone 01277 525 020 or send details through our quote form and we will arrange a return visit.

Location
Charing Heath (TN27)
Region
Kent
Cover
A 12-month guarantee
Quotes
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Mastic sealing around Charing Heath: how the place shapes the job

Charing Heath lies roughly 42 miles out from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres; their frame mastic often ages block-wide. Charing Heath is in the South East, one of the UK’s drier regions. Even so, frame mastic only goes on in dry, workable conditions, and south- and west-facing elevations, which take the most sun and rain, often age first.

If you look after a block within reach of Charing station, 1.2 miles east of Charing Heath, frame and balcony mastic can be renewed on one programme. Older community buildings, Church of the Holy Trinity among them, often have frames of mixed ages whose mastic varies.

Charing Heath is about 7 miles north-west of Ashford, in Kent. We cover commercial sites throughout Charing Heath. Charing Heath is one of 931 places in Kent on our list. We also cover London, around 42 miles from Charing Heath.

Anyone looking for mastic sealing in TN27 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Wind Hill Lane, Cherry Tree Road and Charing Heath Road and the roads nearby. If your building is just outside Charing Heath, we cover Lenham Heath (1 mile north-west), Stonebridge Green (1 mile south-west), Lenham Forstal (1 mile north-west), Charing (1 mile east) and Cold Harbour (2 miles north). A short drive away, we cover Maidstone (11 miles west), Ashford (7 miles south-east), Canterbury (15 miles east), Sittingbourne (9 miles north), Whitstable (15 miles north-east) and Faversham (9 miles north-east).

Landmarks near Charing Heath

In Charing Heath, that means premises near The Red Lion Inn and the streets around them. The closest station to Charing Heath is Charing station, about 1.2 miles east. Other landmarks nearby include Coldbridge Castle (2.9 miles west).

Map of Charing Heath © OpenStreetMap contributors

Questions we’re asked in Charing Heath

Is a smaller place like Charing Heath outside your area?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Will you take on a block within reach of Charing station?

Yes. Managing agents, landlords, property factors and housing associations are who this service is for. We work to your notice and access arrangements.

How long does a job like this take?

That varies with the scale of the job, though a typical visit typically takes a day or two for a single block, longer for an estate programme. For bigger or phased jobs, we will set out a timescale with the quote.

Can people stay in the building while you reseal?

The work is planned around occupiers. Dates and areas are agreed with you so residents or tenants can be told and communal access is kept open.

What if the old mastic contains asbestos?

We don’t remove asbestos-containing materials. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.

How do you reach windows on upper floors?

Every block is different. We agree access with you at quote stage so there are no surprises.

How soon can the area be used again?

We will confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.

What happens if it’s left?

Looking at mastic during planned maintenance costs little. Waiting until leaks appear means working under pressure and less choice about when. Halls, stores and units around places like Charing Heath may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

Why choose Mastic Doctor in Charing Heath

  • Colours chosen to suit frames, cladding or finishes where possible
  • One contact handling all your sites
  • A fixed quote before work starts
  • A Constructionline member, so easy to vet

Read what affects the cost or how we’re accredited.

Site staff or a sealant specialist?

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

On site: what to expect

At the end of each section, the masking comes off, the area is cleaned and every joint is checked with your site contact. Where the sealant needs time to cure before use, we tell you and sign the area. For a building around Charing Heath, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. Each block or building is walked and the failed joints recorded with the likely cause.
  2. We send a fixed quote that sets out the joints, the products and the programme.
  3. The programme is fixed with you, including dates you can pass on to residents or tenants.
  4. We remove the old mastic completely and clean the joint faces back.
  5. Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
  6. Each building is checked on completion and the work carries our 12-month guarantee.

What we need from you

  • Have the specification and drawings to hand
  • Arrange parking or a loading space
  • Point out any areas we must not close

Get a fixed quote

To get a fixed quote, call the office on 01277 525 020 or email drawings and photos, telling us the site location and the nature of the job. You can also send details through our quote form.

Ask for a quote

Read more

Looking after the joints

Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:

  • List the paperwork your organisation requires when you send details
  • Plan resealing building by building rather than complaint by complaint
  • Look at the sunniest and most exposed elevations first
  • Log resealing dates block by block

Add mastic joints to your cyclical inspections. Check for splits, open joints, brittle mastic and lifting edges, and note the building and elevation.

Mastic fails gradually, then all at once in a wet spell. Resealing when cracking first shows avoids water damage and saves internal repairs.

When to call us in Charing Heath

We often find joints filled solid with no backing rod, so the mastic is glued to the joint bottom too. That three-sided adhesion stops it stretching and it tears.

Typical triggers for a call:

  • Mastic failing across several blocks on an estate
  • Failed external movement joints
  • A mix of products and colours from past repairs
  • No planned programme for sealant

With historic buildings such as Godinton House, 4.7 miles south-east of Charing Heath, in the wider area, owners of older properties around Charing Heath should expect mastic to need a product that suits old masonry.

What your quote should include

  • Are they CHAS accredited or on Constructionline?
  • Proof of insurance
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • How they handle RAMS and site documents

Questions to ask before you appoint anyone

Accreditations

Trusted. Accredited. Insured.