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

Sealant specialists in Kemsley Street

Looking for commercial sealant contractors in Kemsley Street? It’s simple: send details, get a quote, we seal, guaranteed.

  • Frame sealant that has cracked, shrunk or pulled away
  • A top-up bead over failed sealant, now lifting
  • Smeared sealant across finishes from a rushed job
1
Send details
Tell us about the site, with photos if you have them.
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
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
Constructionline member
Fully insured: £5m PL

Commercial sealant contractors for Kemsley Street sites

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

Commercial sealant contractors in Kemsley Street, done properly

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, since managing asbestos is the dutyholder’s responsibility. Anything suspect is left alone until it has been tested (removing asbestos-containing materials isn’t something we do). If you are dealing with movement joints packed with grit and debris and a top-up bead over failed sealant, now lifting, we can put it right. Facilities teams, main contractors and managing agents in Kemsley Street tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

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

Rural business units near smaller places such as Kemsley Street are frequently converted agricultural buildings. Their mix of old walls with new frames, partitions and floors means many joints between unlike materials.

Every job we finish is backed by a 12-month workmanship guarantee. If a joint we sealed fails because of how it was installed, we come back and put it right.

Where
Kemsley Street (ME7)
Region
Kent
Guarantee
A 12-month guarantee
Quotes
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Commercial sealant contractors in Kemsley Street: the local picture

The 3 miles around Kemsley Street take in at least three named trading estates, business parks or retail parks. Tenant changes on such sites bring fit-outs, and fit-outs bring new joints; brand colours often come into it. Kemsley Street lies roughly 32 miles out from central London. This part of the South East is dense with business parks and out-of-town offices. Firms with branches across the South East can use one contractor for every site.

For premises near Rainham (Kent) station (2.5 miles north-east of Kemsley Street), footfall is part of the plan: work is phased so shops and offices keep trading. Sites a few miles apart, such as Hempstead Valley Shopping Centre and Parkwood Shopping Centre, can share one programme and one point of contact.

Kemsley Street is about 3 miles south of Gillingham, in Kent. If you are looking for commercial sealant contractors in Kemsley Street, we can help, as we do across Kent. 931 places across Kent fall within our area, Kemsley Street among them. Our London page has more on work in that area (32 miles or so).

We cover the ME7 postcode districts. Close to Kemsley Street, our area also takes in Bredhurst (1 mile west), Scragged Oak (1 mile south), Dunn Street (1 mile south-west), Park Wood (1 mile north-east) and Lower Cox Street (1 mile south-east). A short drive away, we cover Maidstone (5 miles south-west), Sittingbourne (6 miles east), Gravesend (11 miles north-west), Faversham (13 miles east), Northfleet (12 miles north-west) and Minster (11 miles north-east).

Local landmarks in Kemsley Street

In Kemsley Street, that means premises near Levan Strice and Rainham School for Girls. Kemsley Street’s nearest station is Rainham (Kent) station, roughly 2.5 miles north-east. Well-known places in the area include Medway megaliths (4 miles west) and Allington Castle (4.3 miles south-west). The countryside around Kemsley Street includes Detling Hill and Burham Down.

Map of Kemsley Street © OpenStreetMap contributors

Leave it or put it right?

Leaving a failed joint rarely saves money. Water past a frame perimeter or a washroom joint can reach plasterboard, insulation, floor coverings and the ceiling below. Dealing with it while the damage stops at the bead is the cheaper route. Older rural buildings around Kemsley Street move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.

Why us?

  • Workmanship guaranteed for 12 months
  • Matching to RAL references, product permitting
  • Constructionline member
  • Colour agreed before work starts

Read what affects the cost and our accreditations.

When to call us in Kemsley Street

When a bead peels cleanly off one face, it has failed in adhesion. The usual causes are poor preparation, a missed primer, contamination on the joint face or sealant bonded to the base of the joint. It’s one of the commonest faults we find on earlier work.

Site and facilities staff are often the first to spot these:

  • Greasy, split joints in a kitchen or tea point
  • Weathered facade sealant that no longer flexes
  • Sanitary sealant that has gone black and patchy
  • Damp patches where an external joint has failed

Units at retail parks like Hempstead Valley Shopping Centre, 0.9 miles north-west of Kemsley Street, change hands and get refitted, with new joints at every frontage.

What your quote should include

  • Can the work be phased to keep areas open?
  • Who will actually carry out the work
  • The terms of the workmanship guarantee
  • Health and safety accreditation such as CHAS

How to choose a sealant contractor

When it isn’t the sealant

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • A failed roof covering or waterproofing membrane
  • Suspect materials that need testing and specialist removal
  • Cracking that needs a structural engineer to look at it

Not sure which it is? You can ring 01277 525 020 or email the details over and we’ll tell you honestly.

What we seal

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

How a job runs

We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. If others near Kemsley Street need work, visits can be combined. You’ll have a fixed quote before work starts.

  1. First, details reach us through the quote form or 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. Every failed bead is removed rather than covered.
  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

  • Send any specification or drawings in advance
  • Tell us what induction or permit system the site runs
  • Send asbestos survey details if the building is pre-2000

Request a quote

Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.

Get a quick quote

Advice

Questions about Kemsley Street

Is Kemsley Street too small for you to travel to?

Not at all. Kemsley Street is within our area. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.

Can the sealant on our Kemsley Street premises match the finishes?

Yes. Colour matching to frames, cladding, stone and shop-fit finishes is a regular part of the work. The quote lists the colours the product is made in.

Is failed sealant stripped out, or sealed over?

Removal comes first, every time. Then the joint is cleaned, primed where the maker specifies, backed to depth and resealed.

Could the old sealant in an older building contain asbestos?

Some older mastics did contain asbestos. So we check the register first and stop work on anything suspect until it’s tested. HSE guidance on asbestos is a useful reference.

Will your applicators have CSCS cards?

Yes. Should the site need card details in advance, let us know and we will send them with the quote.

How long do sealant joints last?

It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.

How is commercial sealant work priced?

Send what you have, even a few photographs and rough lengths. Questions or a site visit follow where needed, and then a fixed quote for the agreed scope.

How the quote is worked out

What shapes the price:

  • Whether old sealant has to be cut out first
  • The site’s rules and procedures
  • Location, for remote and island sites
  • Phasing around occupants

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Before you send an enquiry

Diagnosis starts before we arrive. Tell us:

  • Your programme or deadline
  • Approximate linear metres or a joint schedule
  • Whether an asbestos survey exists
  • Clear photographs of the problem areas

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or call the office on 01277 525 020 or use the quote form to discuss it first.

For managing agents and facilities managers

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Kemsley Street can form part of a wider programme.

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.

Accreditations

Trusted. Accredited. Insured.