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

Mastic sealant contractors in Radfield

Work needed on a mastic joint in Radfield? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Brittle perimeter mastic across a building
  • Mastic failing across several blocks on an estate
  • Movement joints with sealant missing
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Mastic sealing near Radfield

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

Mastic sealing for commercial buildings in Radfield

For blocks and buildings in Radfield and across Kent, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Addresses, photographs of typical joints and a rough idea of quantities let us give a quick quote or we can visit. If you’re dealing with draught complaints from residents or tenants and complaints coming in block by block, we can help, whatever the surface. For commercial sealant work in Radfield, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

Owners and agents with buildings around smaller places such as Radfield tend to manage small terraces of association properties, converted barns and commercial units. Mastic around frames and on external joints wears out in time, whatever the building.

We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Radfield (ME9)
Region
Kent
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026

How the job changes by surface

External movement joints

External movement joints take up expansion and contraction. Failed sealant in a movement joint lets water in.

Planned maintenance

Mastic wears out like any building component; how fast comes down to movement, weather, UV and the product. Inspecting joints regularly keeps programmes on track.

From enquiry to sign-off

Tell us your site hours and access windows and we’ll plan around them. While we’re working, the area stays contained and tidy, and your contact hears from us before we move to the next area. If others near Radfield need work, visits can be combined. A fixed quote is given before anything starts.

  1. First comes a look at the joints and, for older buildings, the asbestos records.
  2. The products and programme are set out in a fixed quote.
  3. Failed mastic is removed completely.
  4. Joint faces are cleaned, backed and resealed.
  5. We finish each building before moving to the next.

What we need from you

  • Warn occupants and staff about the work
  • Tell us what induction or permit system the site runs
  • Share the asbestos register for older buildings

Request a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photos and a few notes.

Get a quick quote

Related advice

When something else is needed

Before quoting, we check that sealant is the right answer. It isn’t the answer for:

  • Asbestos-containing sealant, which we don’t remove
  • Broken glass or failed sealed units
  • Roof leaks, gutters or failed flashings that aren’t sealant joints

Not sure which it is? You can speak to us on 01277 525 020 or send photos by email and we’ll tell you honestly.

Where we work in Radfield

  • Shopfronts below residential blocks
  • Communal kitchens and washrooms
  • Window and door perimeters on blocks
  • Communal entrances and stairwells
  • Balcony and threshold joints
  • External wall and movement joints

Mastic sealing in Radfield: the local picture

Radfield is within about 3 miles of the coast. On buildings near the shore, the side facing the weather typically needs its mastic renewed first, and they deserve more regular inspection. Radfield sits in one of the drier corners of the country, the South East. External mastic still waits for dry faces and the right temperature, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first.

Landlords with units on estates such as Kent Science Park (to the south-west of Radfield) can bring frame, door and external mastic across several units into one programme. Trustees of buildings like Church of St Lawrence can bring frame and external mastic into a planned maintenance list. Historic properties like Belmont House and Gardens (to the south-east of Radfield) show the age of some local stock, where frame mastic must suit soft brick or stone.

Radfield is about 2 miles east of Sittingbourne, in Kent. Anywhere in ME9, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Radfield is one of 931 places we cover in Kent. For work in that direction, see our London page (40 miles or so).

We cover the ME9 postcode districts for mastic joints. Nearby places we also cover include Bogle (1 mile south-east), Tonge Corner (1 mile north), Rodmersham (1 mile south-west), Lynsted (1 mile south) and Bapchild (1 mile south-west) for mastic joints. Bigger towns within reach include Maidstone (12 miles west), Ashford (14 miles south), Canterbury (13 miles east), Whitstable (11 miles east), Faversham (5 miles east) and Herne Bay (15 miles east).

Near you in Radfield

Locally, jobs take us to sites close to Sittingbourne Community College and Fox pub and the streets around them. Radfield’s nearest station is Teynham station, roughly 0.9 miles east. A little further out are Bayford Court (2 miles north-west) and Sittingbourne Heritage Museum (1.9 miles west).

Map of Radfield © OpenStreetMap contributors

Leave it or put it right?

Open external joints let water into walls and around frames. That can lead to damp, staining and damage to finishes and those cost far more to put right. Older rural buildings around Radfield move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you will have a fixed figure to work with.

Why clients in Radfield choose us

  • Colour options checked against the specified product
  • Products installed to the manufacturer’s instructions
  • Failed material removed, not covered up
  • One contact handling all your sites

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

Common questions from Radfield clients

Can you work at a site such as Kent Science Park, by Radfield?

Yes, sites like Kent Science Park are within our area, along with the rest of Radfield. To start, just give us a call on 01277 525 020 or send details through our quote form with the unit, the joints involved and your access times.

Does a coastal location like Radfield affect which sealant is used?

It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.

Can you follow the specification on our project?

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

How do I request a quote?

You can use the quote form on this site; alternatively, call the office on 01277 525 020 or email drawings and photos. Photos, drawings or a joint schedule help us quote quickly.

Will you quote for a small job?

Single areas, one-off repairs and whole buildings are all quoted the same way: details, then a fixed price, then sealing, then a 12-month guarantee.

Is asbestos a concern with old mastic?

Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts, and if it’s suspected, work stops until it’s tested.

What paperwork can you provide?

Our credentials include CHAS, Constructionline and public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

Owners, agents and contractors

Main contractors use us as their sealant subcontractor. Programme, specification and site rules come first.

Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so the building keeps working while we do.

Quoting for work in Radfield

A fixed quote reflects the actual work. It takes account of:

  • Any access equipment needed
  • The site’s rules and procedures
  • Quantities, in metres or numbers
  • The size and state of each joint

The product called for affects the cost, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.

What we need to price the job

However big the job, the same details help:

  • Where the site is, with the postcode
  • Your programme or deadline
  • Rough lengths or quantities, or drawings if you have them
  • The product your specification calls for

Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, ring 01277 525 020 or email drawings and photos.

Accreditations

Trusted. Accredited. Insured.