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

Facade and window perimeter sealing in Iwade, Kent

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

  • Draughts around frames and panels
  • Unsightly perimeter sealant on a visible elevation
  • Perimeter sealant that has split or peeled away
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
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 & Constructionline
Fully insured: £5m PL

Facade sealing for Iwade sites

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

Keeping the joints sound

Cleaning and maintenance staff play a part too. Pass these on to them:

  • Avoid harsh cleaners on facade sealant
  • Investigate damp beside windows promptly
  • Confirm the survey covers external sealants in older buildings
  • Clear debris that holds water against joints

After heavy weather, check vulnerable elevations for signs of water inside. Catching a new leak early keeps the repair small.

Don’t wait for a full elevation to fail. Small repairs stop small leaks becoming large ones behind the facade.

Facade sealing for commercial buildings in Iwade

Installing framed glazing systems isn’t part of our work. We handle the sealant joints that surround those elements: perimeter joints where frames meet the structure, panel joints and window perimeters. If you have leaks at window and door perimeters and new sealant peeling off old mastic, we can help, on perimeter joints where frames meet the structure, window and door perimeters and stone and brick facade joints alike. One point of contact handles commercial sealant work in Iwade from the first photos to the final walk-round, for single jobs and planned programmes alike.

Around places like Iwade, a lot of construction is the conversion of older buildings, which leaves joints between old walls and new frames that need a sealant able to take the movement, in a colour the planners or architect are happy with.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

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

Should maintenance staff do it?

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

What the job involves on each surface

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, often a low-modulus silicone or hybrid.

Window and door perimeters

Perimeter joints move as frames expand and contract in the sun. Rod placed at the right depth lets the bead stretch.

For managing agents and facilities managers

Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

Building owners and managing agents use us on sealant work across single buildings or whole portfolios. Several sites can go on one quote, which keeps the paperwork simple.

How a job runs

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work typically takes longer on a full elevation than on a handful of window perimeters, and it always depends on dry weather, and we clear our waste as we work. For a job in Iwade, the main thing is a clear picture of the work, so send photos of each area. A fixed quote follows.

  1. Access, site rules and timing are settled with the client up front.
  2. Weather and temperature are checked against the product’s limits.
  3. We remove the old bead and check the edges are sound.
  4. Joints are cleaned, primed if required and fitted with backing rod.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. We hand over with our 12-month workmanship guarantee.

Preparing the site

  • Flag any permit to work we will need
  • Have the specification and drawings to hand
  • Share your working hours and any access restrictions

Ask for a quote

Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings you can plan around. If you have questions first, speak to us on 01277 525 020 or email a schedule or drawings.

Ask for a quote

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Contractors’ notes for Iwade

With the shore within about 1 mile, Iwade counts as a coastal location. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, so joint design, primers and product choice deserve extra care. Iwade is about 36 miles from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and each scheme needs its mastic sealed to programme.

Recladding or extending a unit at a site like Newington Enterprise Centre, 2.7 miles south-west of Iwade, brings panel joints and frame perimeters into the programme. When a school such as Iwade School is extended or refurbished, the mastic package is often squeezed into the holidays.

Iwade is about 2 miles north of Sittingbourne, in Kent. We send applicators to Iwade for facade joints. 931 places across Kent fall within our area, including Iwade. For work in that direction, see our London page (36 miles or so).

Work on facade joints is covered throughout ME9, for business premises of every kind. For a building on The Street, Sheerstone and Sheppey Way or nearby, send details and we’ll quote for facade joints. If your building is just outside Iwade, we cover Howt Green (1 mile south), Kemsley (1 mile south-east), Milton Regis (2 miles south-east), Sittingbourne (2 miles south) and Murston (3 miles south-east). Further afield, our area takes in Maidstone (11 miles south-west), Whitstable (13 miles east), Faversham (8 miles south-east), Minster (4 miles north-east), Davington (8 miles south-east) and Foley Park (11 miles south-west).

Near you in Iwade

Locally, jobs take us to sites close to Westlands School, Milton Creek Country Park and The Woolpack pub, among other places. The nearest railway station is Kemsley station, about 1 mile south. Nearby you will also find Castle Rough (1.5 miles south-east) and Court Hall Museum (1.8 miles south).

Map of Iwade © OpenStreetMap contributors

Questions about Iwade

Can you take on a job at a hospital such as Sittingbourne Memorial Hospital?

Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.

Will you plan work around the academic year at somewhere like KITE College?

Yes, holiday working periods are the norm on campus jobs. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Do you seal on top of existing sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Are your applicators CSCS-carded?

Yes. Our applicators hold CSCS cards, as many construction sites ask for.

How many days will you need on site?

That varies with the scale of the job, but the work usually takes longer on a full elevation than on a handful of window perimeters, and it always depends on dry weather. Larger or phased jobs take longer, and we will give you a timescale with the quote.

Is colour matching possible?

Often, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We’ll confirm the colours available for the specified product.

Can you look at water coming in around a frame?

Yes. We check the sealant joints and report what we find. Where the cause seems to be elsewhere, we’d rather tell you than reseal pointlessly.

What we are called out for in Iwade

New sealant run over old sealant rarely holds. Cured silicone won’t accept a new silicone bead, so the new bead peels away within a season or two.

Typical triggers for a call:

  • Damp patches beside frames after rain
  • Air leaks through failed facade joints
  • Sealant pulling away from frames or panels
  • Patch repairs that keep failing

Further education sites such as KITE College, 2.3 miles south of Iwade, are extended and refurbished from time to time, with mastic often programmed into the summer break.

Questions to ask before you book

  • Their pre-qualification and accreditations
  • Will RAMS and insurance details be available?
  • Whether old or failed sealant will be cut out, not overlaid
  • Can the work be phased to keep areas open?

Our contractor checklist

Accreditations

Trusted. Accredited. Insured.