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

Sealant specialists in Radfield

Commercial sealant contractors in Radfield, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Greasy, split joints in a kitchen or tea point
  • Smeared sealant across finishes from a rushed job
  • Window and door perimeter joints that have cracked open
1
Send details
Tell us about the site, with photos if you have them.
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
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Need commercial sealant contractors in Radfield?

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Maintenance after handover

Cleaning and maintenance staff play a part too. Share these points with them:

  • Don’t let cleaning or traffic back on before the cure time is up
  • Look at the sealant around anything that has been moved or replaced
  • Make sure ventilation in wet areas is switched on and working
  • Brief cleaning contractors to avoid scourers and blades on sealant

We stand behind the workmanship with a 12-month guarantee. File the handover note with the building records so it’s easy to find if a joint we sealed gives trouble inside the 12 months.

Once sealant fails in a movement joint, grit and debris get in. With nothing soft to close against, the materials either side take the load and start to break up. At that point it’s a repair job rather than a reseal.

Commercial mastic work in Radfield

On older buildings, particularly those put up before 2000, some old mastics and sealants may contain asbestos. We ask to see the asbestos register or survey before old sealant is disturbed, because the duty to manage asbestos sits with the dutyholder. Anything suspect is left alone until it has been tested (removing asbestos-containing materials isn’t something we do). The enquiries we see most involve mouldy silicone around WCs, urinals and vanity tops and gaps behind commercial kitchen worktops and sinks, across washrooms and tea points, kitchen worktops and splashbacks and floor and threshold joints. A single leaking joint is often how a building in Radfield first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.

In an occupied building in Radfield, the job is planned so areas stay in use: we agree the order with you and hand back each area with its cure time.

Work in smaller places such as Radfield tends to come one building at a time: a pub kitchen, a hall, a small office. We plan the visit so everything on the list is done in one go, with the right products and colours on hand.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Radfield (ME9)
Region
Kent
Cover
12 months on every job
Quote
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026

Commercial clients in Radfield

Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

Shops, offices and hotels in and around Radfield

With the shore within about 3 miles, Radfield counts as a coastal location. Exposed frontages near the sea are hard on sealant, so the product has to suit the weather as well as the look. Sea-facing elevations are normally where failed joints show first. At about 40 miles from central London, Radfield is within reach of the capital. This part of the South East is dense with business parks and out-of-town offices. Occupiers with several premises in the region tend to prefer one contractor and one point of contact.

Offices and shops close to stations such as Teynham station, 0.9 miles east of Radfield, tend to be busy all day, so sealant work is planned around opening hours. For a hotel such as Hempstead House Hotel, 0.5 miles west of Radfield, the colour of a joint at the bar or the bath matters to the look of the room.

Radfield is about 2 miles east of Sittingbourne, in Kent. Any commercial site in Radfield is covered. We work across 931 places in Kent. For work in that direction, see our London page.

Anyone looking for commercial sealant contractors in ME9 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. We also cover 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). Nearby towns on our patch 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).

Landmarks near Radfield

Around Radfield, our work takes us to commercial buildings near Sittingbourne Community College and Fox pub and the streets around them. Radfield’s nearest station is Teynham station, roughly 0.9 miles east of the centre. Other landmarks nearby include Bayford Court (2 miles north-west) and Sittingbourne Heritage Museum (1.9 miles west).

Map of Radfield © OpenStreetMap contributors

Diagnose, treat, sign off

Diagnose, treat, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. For a building around Radfield, 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. First, details reach us through the quote form or a site visit.
  2. We diagnose the cause of failure and price a fixed scope.
  3. Work is phased around your occupiers where areas need to stay in use.
  4. Old sealant is cut out completely, never sealed over.
  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.

Before we start on site

  • Clear stock, furniture or equipment away from the joints
  • Tell us your opening times and when work is allowed
  • Confirm the product named in the specification

Getting a fixed quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, ring 01277 525 020 or email us.

Get a price

Advice

Quoting for work in Radfield

Your fixed quote is built from the real scope. It allows for:

  • Induction, permit and paperwork requirements
  • Phasing around occupants
  • Removal of failed or old sealant
  • Travel to remote or island sites

What a job costs comes down to how many linear metres there are, what has to come out first and how the joints are reached. Call for a quote once you have the details.

What we need to price the job

A few photographs plus some basic facts will normally do. Please tell us:

  • Specification clauses that apply
  • Approximate linear metres or a joint schedule
  • Asbestos survey details if the building is older
  • Access details, including height

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, give us a call on 01277 525 020 or email us.

Radfield: questions and answers

Our building in Radfield is near the coast: does that change the sealant?

It can. Coastal exposure works external joints harder than inland weather. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.

Is Radfield too small for you to travel to?

Not at all. Radfield is within our area. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.

Which sealant will you use?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Are you CHAS accredited and on Constructionline?

Yes. We are CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.

Do you work for facilities managers and managing agents?

Yes. You send the details, we return a fixed quote, and the job is done and signed off.

How is commercial sealant work priced?

Photos, drawings or a schedule of the joints are normally enough to start. Where we need to see it, we’ll arrange a site visit, then send a fixed quote.

Will your applicators have CSCS cards?

Yes. If you need card details for site access, let us know and we’ll send them with the quote.

When to bring in a specialist

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

Signs you need commercial sealant contractors in Radfield

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.

Clients normally get in touch after noticing one or more of the following:

  • Black mould through washroom sealant that won’t clean off
  • Earlier reseals applied straight onto the failed bead
  • Messy, uneven beads from earlier work that let the building down
  • Frame mastic that has hardened and come away from the wall

Parks like Kent Science Park, 2.9 miles south-west of Radfield, see tenants come and go, and every move-in brings joints to seal.

Comparing quotes

  • Whether primer will be used where the manufacturer specifies it
  • Will CSCS-carded applicators be on site?
  • Their public liability cover
  • What the guarantee covers, and for how long

Questions to ask before you appoint anyone

Accreditations

Trusted. Accredited. Insured.