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

Facade and window perimeter sealing in Borden, Kent

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

  • Perimeter sealant that has split or peeled away
  • Leaks at window and door perimeters
  • Hard, chalky sealant that no longer flexes
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
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
£5m public liability

Facade sealing across Borden

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

How we handle facade sealing in Borden

Most facade joint failures trace back to the joint, not just the sealant. The width has to suit the expected movement and the sealant’s movement capability, while rod fixes the depth and stops the bead sticking to the rear, often at around 2:1 width to depth, as the manufacturer advises. If you’re dealing with weathered joints at frame-to-structure perimeters and sealant pulling away from frames or panels, we can put it right, on shopfront frames, cladding panel joints and window and door perimeters alike. Looking for mastic applicators who cover Borden? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.

For a site near Borden, the mastic visit is planned so the right sealants, primers and backing rod are on hand, timed to the stage the job has reached. Drawings, photographs and the programme let us give a fixed quote.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

Location
Borden (ME9)
Wider area
Kent
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Do you need facade sealing in Borden?

Most facade joints fail through age and weathering. UV and weather harden the sealant until it can’t stretch with the building.

What tends to prompt an enquiry:

  • Facade joints cracked through the middle
  • Discoloured or dirty facade joints
  • Hard, chalky sealant that no longer flexes
  • New sealant peeling off old mastic

Hotels like The Bull Hotel (to the east of Borden) rarely close for long, so refurbishment mastic is phased floor by floor.

Questions to ask before you book

  • Their plan for phasing and protecting the area
  • How the existing material will be dealt with
  • How they handle RAMS and site documents
  • Are they CHAS accredited or on Constructionline?

Choosing a commercial sealant contractor

When to bring in a specialist

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

Facade sealing around Borden: what changes locally

There are a number of hotels within about 2 miles of Borden. When hotels extend or refit, the work is usually squeezed between peak periods, mastic included. At about 36 miles from central London, Borden is within reach of the capital. Towns within reach of London tend to keep building, from flats to offices and schools, and each scheme needs its mastic sealed to programme.

For contractors refurbishing units at places like Kent Science Park, 1.6 miles south-east of Borden, the mastic covers cladding panels, roller-door and window perimeters. On a healthcare site such as Sittingbourne Memorial Hospital (1.3 miles east of Borden), new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.

Borden is about 1 mile south-west of Sittingbourne, in Kent. Across the ME9 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. 931 places across Kent fall within our area, Borden among them. We also cover London, some 36 miles away.

Postcode districts covered here: ME9 for facade joints. For a building on The Street, Mountview and Homestead View or nearby, send details and we will quote for facade joints. Nearby places we also cover include Heart's Delight (1 mile south-east), Tunstall (1 mile south-east), Sittingbourne (1 mile north-east), Highsted (2 miles south-east) and Rodmersham Green (2 miles south-east). A short drive away, we cover Maidstone (9 miles south-west), Ashford (15 miles south-east), Whitstable (14 miles east), Faversham (8 miles east), Minster (7 miles north-east) and Kings Hill (14 miles west).

Local landmarks in Borden

In Borden, that means premises near Westlands School and Cromers Wood. The nearest railway station is Sittingbourne station, about 1.4 miles north-east. Nearby you will also find Court Hall Museum (1.6 miles north-east) and Bayford Court (1.7 miles north-east).

Map of Borden © OpenStreetMap contributors

From enquiry to sign-off

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself usually takes longer on a full elevation than on a handful of window perimeters, and it always depends on dry weather, and our waste is bagged and taken away as we go. If others near Borden need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.

  1. First we review photos, drawings or what we saw on a visit, and agree how each joint will be reached.
  2. The old bead is cut away completely, not overlaid.
  3. Both faces are cleaned and, where the product needs it, primed.
  4. Closed-cell rod fixes the depth, and the sealant grips two sides only.
  5. A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
  6. The completed runs are checked with you, then the 12-month guarantee applies.

Getting the site ready

  • Tell us which areas need to stay in use
  • Send asbestos survey details if the building is pre-2000
  • Move anything stored against the joints

Request a quote

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

Get a price

Related advice

Different surfaces, different methods

Brick and stone facades

Joints in natural stone need care to avoid staining. The specified stone-compatible sealant is what we use.

Cladding panel joints

Panel joints on cladding and rainscreen systems take movement every day. We use a product rated for the movement and suited to the panel surface.

After the work

Problems stay small when the joints are checked regularly. Specifically:

  • Note when each elevation was last resealed
  • Keep sills, gutters and drainage paths clear
  • Plan facade sealing alongside redecoration
  • Never let anyone seal over old sealant

Anything drilled through a facade joint breaks the seal. Ask the installer to reseal it properly with a compatible product.

In pre-2000 buildings, check the asbestos register before old sealant is cut out. Some older mastics contain it, and if it’s suspected, we stop until it has been tested.

Honest limits

Being straight saves everyone time. New sealant won’t cure:

  • Work on the window or framing system itself
  • Joints too narrow for the movement they take, which need redesign
  • Water getting in through cracked render or porous masonry

If you’re not sure, just phone 01277 525 020 or use the quote form and we’ll give you a straight answer.

Surfaces we seal

  • Cladding panel joints
  • Shopfront frames
  • Coping and flashing joints
  • Stone and brick facade joints
  • Perimeter joints where frames meet the structure
  • Window and door perimeters

Questions we are asked in Borden

Can you work around term dates at a campus such as Canterbury Christ Church University?

Yes. We plan campus work around teaching, exams and residence turnarounds. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Will you take on work at estates like Kent Science Park, close to Borden?

Yes, sites like Kent Science Park are within our area, along with the rest of Borden. Photos and a short description are enough for a first look.

Do you install glazing systems?

No. That work needs a glazing specialist. What we seal are the joints around frames and panels on commercial buildings.

Are you fully insured?

Yes. We are fully insured, and the certificate can go with your quote.

Do you take on multi-site work?

Yes. A group of buildings can go on one quote, and you deal with one contact throughout across South East England, Greater London and Scotland.

What will the job cost?

Each job is quoted on its own details. To get one, ring 01277 525 020 or send details through our quote form with a description of the work.

Can weather delay the job?

It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Internal work is far less affected.

Accreditations

Trusted. Accredited. Insured.