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

Sealant applicators in Chatham

Commercial sealant work in Chatham for contractors, FMs and building owners: sealant work for offices, shops, hotels and other commercial buildings, quoted at a fixed price.

  • Water staining near frames, panels or ceilings
  • Smeared sealant across finishes from a rushed job
  • Black mould through washroom sealant that won’t clean off
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
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 & Constructionline
Fully insured: £5m PL

Need commercial sealant contractors in Chatham?

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Keeping the joints sound

After handover, these steps help:

  • Keep abrasive pads and scrapers off resealed joints
  • Report cracked or peeling sealant early
  • Note dates and locations of sealant work for future planning
  • On pre-2000 buildings, share the asbestos information before work starts

We stand behind the workmanship with a 12-month guarantee. File the handover note with the building records so it’s easy to find if a joint we sealed gives trouble inside the 12 months.

Tenants and staff spot black or split sealant quickly. Replacing it on a planned cycle keeps complaints down.

Commercial mastic work in Chatham

Having a single contact for all your sites makes sealant far simpler to manage. We take on one-off reseals, runs of jobs across a portfolio and planned maintenance programmes, handled with the same process each time: send details, get a fixed quote, we seal, and a 12-month guarantee once it’s signed off. To get a programme moving in Chatham, give us a call on 01277 525 020 or email us with the site addresses. If you are dealing with a top-up bead over failed sealant, now lifting and gaps behind commercial kitchen worktops and sinks, we can help, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Chatham is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

In Chatham, as anywhere, the first joints to go are usually the ones that work hardest: south-facing perimeters, entrance thresholds and busy washrooms.

Places the size of Chatham typically have a broad commercial mix: business parks, retail centres, hotels, surgeries and offices above the high street. For anyone looking after more than one of them, one contractor and one point of contact for the sealant keeps things simple.

A 12-month guarantee applies to all our work. Should something we installed fail, give us a call on 01277 525 020 or send photos by email and we’ll come back to it.

Where
Chatham (ME5, ME4, ME7, ME1)
Wider area
Medway
Cover
12 months on every job
Price
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Commercial clients in Chatham

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

Common problems we fix in Chatham

Every sealant joint is a maintenance item. How long one lasts depends on the movement it takes, its exposure to sun and weather, the cleaning regime, the traffic and the product itself. In commercial buildings those factors tend to act together, which is why regular inspection pays.

Typical triggers for a call:

  • Frame mastic that has hardened and come away from the wall
  • Greasy, split joints in a kitchen or tea point
  • Sanitary sealant that has gone black and patchy
  • Weathered facade sealant that no longer flexes

Units at retail parks like Horsted Retail Park, 1.1 miles to the west of Chatham, change hands and get refitted, with new joints at every frontage.

Comparing quotes

  • What site paperwork they can supply
  • Who will actually carry out the work
  • Can the work be phased to keep areas open?
  • How long is the guarantee, and what does it include?

How to choose a sealant contractor

Leave it or put it right?

A failed seal around a window, worktop or panel doesn’t mean the element itself has to go. In many cases the element is fine and only the seal around it has given up. A careful reseal is a far smaller undertaking than replacement, though we will tell you honestly if the element itself is the problem. On a busy site in a large place like Chatham, a failed joint gets worse with every day of use, until a reseal turns into a repair. Catching it early keeps the fix simple.

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote.

Why us?

  • Health and safety: CHAS accredited
  • Failed material removed, not covered up
  • Work to your specification and the manufacturer’s guidance
  • One contact handling all your sites

Take a look at our cost guide or our accreditations and insurance.

Commercial premises in Chatham

Chatham has at least three named business or industrial parks inside a 3-mile radius. Tenant changes on such sites bring fit-outs, and fit-outs bring new joints. The area within 2 miles of Chatham holds several hotels. In hotels, sealant shows everywhere, from bathroom joints to reception counters, so colour and a clean finish matter.

Refits at hotels like Bridgewood Manor Hotel (to the south-west of Chatham) bring joints at vanity tops, bars and reception desks that guests see every day. Shops and cafés around stations like Chatham station (1.7 miles north of Chatham) trade from early, so work is timed around them.

Chatham is about 29 miles east of London, in Medway. We cover Chatham, with the same fixed quotes and 12-month guarantee as everywhere else. Chatham is one of 54 places in Medway on our list for sealant joints. For work in that direction, see our London page, about 29 miles away.

Work on sealant joints is covered throughout ME5, ME4, ME7 and ME1, for business premises of every kind. Streets here include Luton High Street, Market Place and High Street, and sites on any of them can send details for a fixed quote. With the A2 and A229 nearby, Chatham is straightforward for us to reach. Sites close to Chatham are covered too, including Luton (1 mile north), Hale (1 mile north-east), Darland (1 mile east), Capstone (1 mile east) and Walderslade (1 mile south). Nearby towns on our patch include Rochester (3 miles north-west), Rainham (3 miles east), Strood (3 miles north-west), Park Wood (3 miles east), Twydall (3 miles north-east) and Hoo St Werburgh (5 miles north). Chatham is one of the busier places in Medway, and its commercial and public buildings are all within our area.

Near you in Chatham

Locally, jobs take us to sites close to The Huntsman pub, Walderslade Girls' School and Darland Banks, among other places. The closest station to Chatham is Chatham station, roughly 1.7 miles north. A little further out are Six Poor Travellers House (2.5 miles north-west) and Rochester Castle (2.6 miles north-west). Open spaces near Chatham include Blue Bell Hill and Burham Down.

Map of Chatham © OpenStreetMap contributors

Our process

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. Sites in a big town such as Chatham frequently have reception sign-in, inductions and permits to work. Tell us about inductions, permits and site hours so the plan fits.

  1. Site photographs, drawings or a visit tell us what’s there and how it has failed.
  2. You get a fixed quote covering removal, preparation and the new sealant.
  3. We agree the order of work, access windows and site hours with you.
  4. Each joint is stripped, cleaned back to sound faces and primed where the maker specifies.
  5. Backing goes in, the new sealant is laid and tooled, and the area is left neat.
  6. Completed areas are signed off with you under our 12-month guarantee.

Before we start on site

  • Agree which areas must stay open
  • For older buildings, check the asbestos register before work
  • Tell staff and tenants when we will be in

Ask for a quote

A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or speak to us on 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.

Get a price

Related advice

What we can’t put right

Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is one of these:

  • Broken glass or blown double-glazed units
  • A dripping trap, valve or pipe behind a fitting
  • Removing asbestos-containing materials (a licensed or specialist contractor’s job)

If in doubt, ring 01277 525 020 or email the details over and we will say what we think.

Surfaces we seal

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

Chatham: questions and answers

Is Horsted Retail Park, near Chatham, within your area?

Yes. Estates, retail parks and business parks around Chatham, Horsted Retail Park among them, are all within reach. Photos and a short description are enough for a first look.

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

Almost never. The work is phased so most rooms stay available. Housekeeping and our team agree each day’s rooms.

How do we get a quote?

Price depends on joint lengths and widths, how much removal is involved, the product, access and phasing. For a fixed quote, send details through our quote form.

Are you CHAS accredited and on Constructionline?

Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.

Is it fine to apply new sealant on top of old?

No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

Can you handle sealant work across several sites?

Yes, we can. Send a list of addresses and what’s needed at each, and we will put together a fixed quote and a sensible order of work.

Do you check for asbestos before removing sealant?

In buildings from before 2000 in particular, some old mastics and sealants may contain asbestos. We ask to see the asbestos register or survey before disturbing old sealant, and anything suspect is left until it has been tested.

Accreditations

Trusted. Accredited. Insured.