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

Facade Sealing contractors in Broadstone

Facade joint and window perimeter sealing on commercial buildings across Broadstone, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Sealant pulling away from frames or panels
  • Weathered joints at frame-to-structure perimeters
  • Leaks at window and door perimeters
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Need facade sealing in Broadstone?

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

Work for main contractors and building owners

Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

About our facade sealing in Broadstone

Our facade sealing work covers external facade joints, window and door perimeters, cladding panel joints and the perimeter joints where frames meet the structure on commercial buildings in Broadstone. Where sealant is the specified fix, we also take on coping and flashing joints. Most enquiries involve perimeter sealant that has split or peeled away and water coming in around window frames, on stone and brick facade joints, coping and flashing joints and shopfront frames. A specialist sealant contractor works differently from a general builder: on jobs in Broadstone, preparation and product choice get the time they need.

Conversions of older rural buildings near smaller places such as Broadstone bring stone, flint, brick and timber up against new glazing. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.

Location
Broadstone (ME17)
Region
Kent
Cover
A 12-month guarantee
Price
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Different surfaces, different methods

Cladding panel joints

Panel joints on cladding and rainscreen systems take movement every day. The sealant has to match the movement and the panel finish, as the specification sets out.

Coping and flashing joints

Where the specification calls for sealant at copings or flashings, we can seal them. These joints take full exposure to weather and need a durable external sealant.

Why deal with it now?

Open facade joints also let air and dirt through: occupants notice draughts and cold spots around windows. A new seal closes the gap for both. One visit to deal with every failing joint makes more sense than several trips to a place like Broadstone, rather than one at a time. Send photos of each area and we will quote for the lot.

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.

Why clients in Broadstone choose us

  • CHAS accredited
  • Work to your specification and the manufacturer’s guidance
  • One number for every site we cover
  • Fully insured, including public liability cover

Take a look at how commercial sealant jobs are priced and our accreditations and insurance.

Doing it in-house

Redoing a failed joint typically costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.

Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Common questions from Broadstone clients

Can you work at a site such as Roebuck Business Park, by Broadstone?

Yes. Estates, retail parks and business parks around Broadstone, Roebuck Business Park among them, are all within reach. A few photographs and the unit address let us price the work.

Is a smaller place like Broadstone outside your area?

Not at all. Broadstone is within our area. We work across Greater London and the South East. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.

Do you seal facades in winter?

Wet joints or temperatures outside the product’s range mean waiting. We plan for weather and keep you updated as the work goes on.

Is any job too small?

Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.

Can you work on upper floors?

That comes down to the access arranged for the job. Share what access exists or is planned when you send details, and we will agree the approach together.

Will you check whether the sealant is causing the leak?

Yes. Photos help, and you can give us a call on 01277 525 020 or email drawings and photos to arrange a visit. Failed perimeter sealant is a common cause, but not the only one, and we will tell you which.

Do you work to architects’ specifications?

Yes. Include it with the drawings when you ask for a quote, and we will price the work to it, flagging anything that needs clarifying.

Facade sealing in Broadstone: the local picture

Broadstone is about 39 miles from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and each scheme needs its mastic sealed to programme. Broadstone sits in one of the drier corners of the country, the South East. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so we time external mastic for dry faces and agree it with the site team.

For contractors refurbishing units at places like Roebuck Business Park, 2.8 miles to the north of Broadstone, the mastic covers cladding panels, roller-door and window perimeters. Older buildings in the area around Broadstone, such as Leeds Castle, which lies north-west of Broadstone, need care when sealed: the product has to suit soft or historic materials.

Broadstone is about 8 miles south-east of Maidstone, in Kent. Broadstone sits inside our coverage and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. Broadstone is one of 931 places in Kent on our list for facade joints. Our London page has more on work in that area, about 39 miles away.

Anyone looking for facade sealing in ME17 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Boughton Park, Headcorn Road and Eastwood Road or close by, we can quote for facade joints. Sites close to Broadstone are covered too, including Eastwood (1 mile north-west), Grafty Green (1 mile north-east), Liverton Street (1 mile north-east), Boughton Malherbe (1 mile north-east) and Ulcombe (1 mile north-west). Nearby towns on our patch include Maidstone (8 miles north-west), Ashford (10 miles south-east), Sittingbourne (10 miles north), Faversham (12 miles north-east), Kings Hill (12 miles north-west) and Davington (12 miles north-east).

Around Broadstone

Around Broadstone, our work takes us to commercial buildings near The Kings Head Public House. Broadstone’s nearest station is Lenham station, roughly 2.9 miles north-east of the centre. Other landmarks nearby include Coldbridge Castle (1.2 miles east) and The Dog Collar Museum (3.6 miles north-west).

Map of Broadstone © OpenStreetMap contributors

When to call us in Broadstone

Adhesive failure, where the sealant peels away from one face, typically comes from poor preparation. Contamination, moisture or skipping the primer the maker specifies leave a weak bond, and movement soon pulls it away.

Look out for the following:

  • Failed sealant on precast panel joints
  • Unsightly perimeter sealant on a visible elevation
  • Damp patches beside frames after rain
  • Air leaks through failed facade joints

University estates such as Canterbury Christ Church University (to the north of Broadstone) tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.

What your quote should include

  • Health and safety accreditation such as CHAS
  • What level of public liability insurance do they hold?
  • The terms of the workmanship guarantee
  • Their approach to joint depth and backing

Choosing a commercial sealant contractor

On site: what to expect

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. If others near Broadstone need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.

  1. First we review photographs, drawings or what we saw on a visit, and agree how each joint will be reached.
  2. Failed sealant is cut out along its full length.
  3. Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
  4. Backing rod, or bond-breaker tape in shallow joints, limits the depth.
  5. A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
  6. We walk the finished joints with you before handing over.

Preparing the site

  • Let building users know which areas are affected
  • Tell us what induction or permit system the site runs
  • Move anything stored against the joints

Request a quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, phone 01277 525 020 or email a schedule or drawings.

Get a quick quote

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