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

Sealant applicators in Sandwich

Commercial sealant contractors for Sandwich, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • Weathered facade sealant that no longer flexes
  • Shrunken sealant along kitchen worktops and splashbacks
  • Mouldy silicone around WCs, urinals and vanity tops
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Commercial sealant contractors across Sandwich

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

When something else is needed

Part of a good diagnosis is knowing where sealant stops. You’ll hear from us if the cause turns out to be any of the following:

  • Broken glass or blown double-glazed units
  • Suspect materials that need testing and specialist removal
  • Leaks from pipework, wastes or valves (that’s plumbing)

Not sure which it is? You can give us a call on 01277 525 020 or send photos by email and we will tell you honestly before you book.

Surfaces we seal

  • Floor and threshold joints
  • Movement joints in walls and floors
  • External facade joints
  • Washrooms and tea points
  • Window and door perimeters
  • Kitchen worktops and splashbacks

Commercial sealant contractors for commercial buildings in Sandwich

Some sealants used before 2000 can contain asbestos, so older stock needs a check first. Before anything is cut out, we ask for the asbestos register or survey, because the duty to manage asbestos sits with the dutyholder. If a material is suspected, work stops until it’s tested, and we don’t remove asbestos-containing materials ourselves. The enquiries we see most involve messy, uneven beads from earlier work that let the building down and earlier reseals applied straight onto the failed bead, on window and door perimeters, washrooms and tea points and floor and threshold joints. Most enquiries from Sandwich start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.

If you look after more than one building near Sandwich, the work can be planned as one programme, so standards and paperwork match across every site.

Around smaller places such as Sandwich, small firms often work from converted barns, yards and rural units. Old masonry and timber meet new glazing and partitions in these buildings, and every junction needs a sealant that suits it.

Work we carry out comes with a 12-month guarantee. Should something we installed fail, give us a call on 01277 525 020 or send details through our quote form and we’ll come back to it.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Sandwich (CT13)
Wider area
Kent
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026

Building owners, agents and FMs in Sandwich

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.

CHAS accredited and a Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.

Commercial sealant contractors in Sandwich: the local picture

Sandwich is within about 3 miles of the coast. For shops, hotels and offices, that means frontage and frame joints that weather faster than they would inland. Sea-facing elevations are typically where failed joints show first. A number of hotels sit less than 2 miles from Sandwich. A hotel refurbishment is full of joints that guests will see, and a matched colour keeps them discreet, with rooms done in turn while the rest stay let.

Shops and cafés around stations like Sandwich station (to the south-east of Sandwich) trade from early, so work is timed around them. If you run an office at a site such as Birnham Farm Business Centre, which lies south-west of Sandwich, the sealant at reception desks, tea points and frames ages with each fit-out. A hotel such as The Fleur De Lys Hotel (to the north of Sandwich) shows how much sealant a hospitality building has on show, from bathroom joints to the bar.

Sandwich is about 5 miles north-west of Deal, in Kent. Commercial clients in Sandwich use us for work on sealant joints, as part of our coverage of Kent. Our Kent coverage takes in 931 places. There’s a separate page for London, about 64 miles away.

If you need commercial sealant contractors in CT13, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Cattle Market, Market Street and High Street and the roads nearby. If your building is just outside Sandwich, we cover Great Stonar (1 mile north), Felderland (1 mile south), Worth (1 mile south), Woodnesborough (1 mile south-west) and Statenborough (1 mile south-west). Further afield, our area takes in Canterbury (11 miles west), Margate (8 miles north), Dover (10 miles south), Folkestone (15 miles south-west), Ramsgate (5 miles north-east) and Broadstairs (7 miles north-east).

Near you in Sandwich

We work on buildings around Ham Fen, Sir Roger Manwood's School and The Red Cow Public House, among other places. There’s a railway station in Sandwich itself: Sandwich station. A little further out are The Precinct Toy Collection (less than half a mile north) and Ramsgate General Hospital (5 miles north-east). Green spaces nearby include Monk's Wall nature reserve.

Map of Sandwich © OpenStreetMap contributors

FAQs: Sandwich

Is Sandwich too small for you to travel to?

No. Small places get the same service as large ones. Our area covers London and the South East counties. Good photos up front let us bring everything on the first visit.

Will our hotel in Sandwich need to close for the work?

In most cases no closure is needed: we work room by room or floor by floor. Housekeeping and our team agree each day’s rooms.

Can weather delay the job?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.

How do you keep disruption to occupiers down?

It’s normal for us to work in occupied buildings. We agree the order of areas, protect what’s nearby and close off only the section we are sealing.

How do you choose the sealant?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

How long does a typical visit take?

We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.

Do you take on multi-site sealant work?

Yes, we can. Send a list of addresses and what’s needed at each, and fixed prices follow, with a suggested sequence.

Our process

Diagnose, treat, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. If neighbouring businesses or buildings around Sandwich need work too, visits can be combined. Tell us your site hours and we’ll plan around them.

  1. Send details through our quote form, or ask for a site visit.
  2. The cause is diagnosed and the scope priced as a fixed quote.
  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. Each joint gets a suitable sealant, laid to depth and tooled.
  6. A final walk-round, then the 12-month guarantee applies.

Preparing the site

  • Have the specification and drawings to hand
  • Flag any permit to work we’ll need
  • Point out parking and an unloading spot

Getting a fixed quote

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.

Get a price

Advice

Aftercare for building managers

Keep the joints in good shape with a few simple steps:

  • Check joints after other trades have worked nearby
  • Keep washroom and kitchen extraction working
  • Keep barriers up until the new sealant has cured
  • Log reseals in the O&M or maintenance records

Add the resealed joints to your planned maintenance inspections. Regular checks pick up small failures before they become leaks, especially on exposed elevations and in washrooms. Should something look amiss, you can give us a call on 01277 525 020 or use the quote form and send a picture.

Movement joints that fill with debris stop working. The joint can no longer close, so its edges crack or spall. At that point it’s a repair job rather than a reseal.

What sets the cost

We price every job individually. The main factors are:

  • Travel to remote or island sites
  • Specialist products, such as fire-rated or hygienic sealants
  • How much there is to seal
  • Removal of failed or old sealant

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.

Before you send an enquiry

The more we know, the firmer the quote. Helpful details to send:

  • Your programme or deadline
  • Anything awkward about access or site hours
  • What the building is and how it’s used
  • The site address and postcode

Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.

Leave it or put it right?

Sealant is often treated as an afterthought by the trade that fitted the element. Choosing the product, setting the depth and preparing the faces are what a specialist brings, the three things that decide how long a joint lasts. You notice the difference years later, not on the day. Over time, UV, weather and movement wear any sealant out. Renewing it in good time keeps the building weathertight.

The price depends on how many linear metres there are, how much old material needs removing and the access. Call for a quote when you’re ready.

Why us?

  • A range of standard colours, depending on the product
  • 12 months’ guarantee on every job
  • Sealing commercial buildings since 2005
  • Matching to RAL references, product permitting

Read our cost guide and our accreditations.

Accreditations

Trusted. Accredited. Insured.