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

Facade Sealing in Tunstall

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

  • Air leaks through failed facade joints
  • Damp patches beside frames after rain
  • New sealant peeling off old mastic
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
Constructionline member
£5m PL insurance

Facade sealing for businesses in Tunstall

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

Facade sealing for commercial buildings in Tunstall

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 with products suited to facade or glazing perimeter joints. We work on cladding panel joints, shopfront frames and window and door perimeters, and what we are called in for most is leaks at window and door perimeters and unsightly perimeter sealant on a visible elevation. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Tunstall, that means joint design, primers and backing rod as standard.

Around smaller places like Tunstall, building work normally means conversions of farm buildings, a few new houses or an extension to a hall or school. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Tunstall (ME9)
Region
Kent
Cover
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026

What happens if it’s left?

Leaving failed perimeter sealant also makes the eventual job bigger: wet edges break down, so repairs may be needed before resealing. Early action keeps it simple. Converted and older buildings near places like Tunstall tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

The specified product makes a difference, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

Why us?

  • Sealing commercial buildings since 2005
  • Colour agreed before work starts
  • Constructionline member for supplier checks
  • Health and safety: CHAS accredited

Read how commercial sealant jobs are priced or our accreditations and insurance.

Keeping the joints sound

After handover, these steps help:

  • Keep pressure washers away from fresh sealant
  • Add perimeter sealant to planned maintenance checks
  • Report water ingress at frames as soon as it shows
  • Check the asbestos register before old mastic is disturbed

Blocked sills and gutters push water at the joints. Sealant copes better when water runs off the facade as designed.

Building facade joints into a maintenance cycle avoids emergency repairs. Inspect regularly and reseal sections as they start to fail, rather than waiting for a ceiling stain.

What sets the cost

To price the job, we consider:

  • Location, for remote and island sites
  • The product specified
  • The site’s rules and procedures
  • Phasing around occupants

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

What to include in your enquiry

Whether it’s one area or a whole building, the same details help:

  • Any dates the work must fit around
  • Whether the building will be occupied during the work
  • Anything awkward about access or site hours
  • The product your specification calls for

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, give us a call on 01277 525 020 or send details through our quote form.

Doing it in-house

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.

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.

FAQs: Tunstall

Could you schedule work at a campus like Canterbury Christ Church University for the vacation?

Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

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

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

Will you check whether the sealant is causing the leak?

Yes. We look at the perimeter sealant and tell you whether it has failed before quoting. Where the cause seems to be elsewhere, we’d rather tell you than reseal pointlessly.

Can you just add new sealant on top?

No. A bead run over old sealant soon lifts. Our method is a full cut-out, cleaning, backing and a new bead.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.

How long will the new sealant last?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.

Will your applicators have CSCS cards?

Yes. Should the site need card details in advance, tell us and we’ll confirm them with the quote.

Mastic packages on Tunstall sites

At about 37 miles from central London, Tunstall is within reach of the capital. Construction around the commuter belt mixes station-side flats with refurbished offices and units, which keeps mastic packages in demand. Tunstall sits in one of the drier corners of the country, the South East. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so external mastic is timed for workable conditions and agreed with the site manager.

For contractors on a campus like Canterbury Christ Church University (4.3 miles south-west of Tunstall), facade and perimeter sealing has to fit around students and term dates. Extensions at sites like Sittingbourne Memorial Hospital (1 mile north-east of Tunstall) usually sit beside working departments, and the mastic follows strict access rules. When a college such as Sittingbourne College, 0.7 miles to the north of Tunstall, builds or refurbishes, the mastic package typically has to fit around students and staff.

Tunstall is about 1 mile south-west of Sittingbourne, in Kent. Businesses, contractors and managing agents in Tunstall can call on us for facade joints. Across Kent, 931 places are covered, including Tunstall. Our London page has more on work in that area (37 miles or so).

We cover the ME9 postcode districts for facade joints. If your building is just outside Tunstall, we cover Heart's Delight (1 mile north-west), Borden (1 mile north-west), Highsted (1 mile east), Rodmersham Green (1 mile east) and Sittingbourne (1 mile north-east). Further afield, our area takes in Maidstone (9 miles south-west), Ashford (14 miles south-east), Whitstable (14 miles east), Faversham (7 miles east), Minster (7 miles north-east) and Kings Hill (14 miles west).

What’s near Tunstall

We work on buildings around Cromers Wood and Fulston Manor School. Tunstall’s nearest station is Sittingbourne station, roughly 1.4 miles north-east. Nearby you will also find Bayford Court (1.6 miles north-east) and Sittingbourne Heritage Museum (1.4 miles north-east).

Map of Tunstall © OpenStreetMap contributors

What the job involves on each surface

Precast concrete panels

Precast arrises sometimes crumble or carry old residue. Faces are cleaned to sound concrete, and damaged edges are reported.

Render and coated surfaces

Paintable sealants exist for joints that will be coated. We confirm the product with you before starting.

How a job runs

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. If others near Tunstall need work, visits can be combined. 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. Failed sealant is cut out along its full length.
  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. We walk the finished joints with you before handing over.

Before we start on site

  • Send asbestos survey details if the building is pre-2000
  • Warn occupants and staff about the work
  • Tell us your opening times and when work is allowed

Request a quote

Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to phone 01277 525 020 or send details through our quote form.

Ask for a quote

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