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

Commercial sealant contractors in Brompton, Medway

Sealant work for offices, shops, hotels and other commercial buildings across Brompton, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Weathered facade sealant that no longer flexes
  • Damp patches where an external joint has failed
  • Earlier reseals applied straight onto the failed bead
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
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
Constructionline member
Fully insured: £5m PL

Commercial sealant contractors near Brompton

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

What happens if it’s left?

On many buildings the mastic was done by whichever trade was on site. A specialist applicator takes care of product choice, joint depth and preparation, the three things that decide how long a joint lasts. It shows over the following seasons rather than at handover. In a smaller place such as Brompton, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.

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 we’ll put a fixed figure on it.

Why appoint us

  • Constructionline member for supplier checks
  • One number for every site we cover
  • Fully insured, including public liability cover
  • Sealing commercial buildings since 2005

See our cost guide and our accreditations.

Commercial sealant contractors in Brompton

Some sealants used before 2000 can contain asbestos, so older stock needs a check first. We ask to see the asbestos register or survey before old sealant is disturbed, since managing asbestos is the dutyholder’s responsibility. Anything suspect is left alone until it has been tested, and we don’t remove asbestos-containing materials ourselves. If you have damp patches where an external joint has failed and window and door perimeter joints that have cracked open, we can put it right, on window and door perimeters, kitchen worktops and splashbacks and external facade joints alike. Searching for sealant specialists in Brompton? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.

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

Around smaller places such as Brompton, 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.

Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Brompton (ME4, ME7, ME2)
Wider area
Medway
Guarantee
A 12-month guarantee
Quotes
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026

How a job runs

When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, with the work itself normally taking a few hours to several days on most single sites, depending on joint lengths and access. What matters most for a job in Brompton is a clear list of what needs doing, so send photos of each area. You will then get a fixed price for the work.

  1. First, details come to us: photographs, drawings or a schedule of the areas.
  2. Next comes a diagnosis and a fixed quote.
  3. Site hours, access windows and the order of areas are agreed before we start.
  4. The failed bead is removed and the joint faces cleaned until they’re sound and dry.
  5. The depth is set, primer is used where the maker calls for it, and the fresh bead is applied and tooled.
  6. Each area is inspected, signed off and backed by our 12-month guarantee.

What we need from you

  • Flag any permit to work we will need
  • Agree which areas must stay open
  • Move anything stored against the joints

Request a quote

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.

Get a price

Read more

Work for main contractors and building owners

Whether you’re a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

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.

Brompton: questions and answers

Is Railway Street Industrial Park, near Brompton, within your area?

Yes. Our area takes in Brompton and its surroundings, with estates and business parks such as Railway Street Industrial Park included. Photos and a short description are enough for a first look.

Will our hotel in Brompton 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.

Does the weather affect the work?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

Can you handle sealant work across several sites?

Yes. We regularly take on multi-site work and planned maintenance programmes, priced site by site or as one programme.

Do you cover Brompton?

Yes. We cover Brompton, and you can give us a call on 01277 525 020 or email drawings and photos to get started.

How many days will you need on site?

That varies with the scale of the job, but the work normally takes as long as the agreed scope needs, from a single visit to a programme spread over several weeks. For bigger or phased jobs, we will set out a timescale with the quote.

Do you seal on top of existing sealant?

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

Working on commercial sites near Brompton

With the shore within about 2 miles, Brompton counts as a coastal location. Shopfronts, frames and external joints on commercial buildings there take wind-driven rain and, closer to the shore, salt in the air. We choose a product rated for the exposure, then confirm the colours available for it. Brompton has seven care or nursing homes no more than 2 miles away. In care settings, a neat joint at a kitchen worktop or a lounge window is part of keeping the place easy to clean.

Units at places like Pentagon Shopping Centre (to the south-west of Brompton) are refitted as brands change, and the joints have to suit each new scheme. Industrial estates such as Railway Street Industrial Park (to the east of Brompton) have offices, trade counters and welfare areas whose sealant ages like any other building’s. Premises within reach of Chatham station, 0.7 miles south-west of Brompton, often have busy frontages where joints are seen by everyone passing.

Brompton is about 1 mile east of Rochester, in Medway. Brompton sits inside our coverage and the rest of Medway, with the same fixed quotes and 12-month guarantee as everywhere else. Across Medway, 54 places are covered, including Brompton. For work in that direction, see our London page.

We take on sealant joints across the ME4, ME7 and ME2 postcode area, for business premises of every kind. Among the streets we cover are Dock Road, Globe Lane and South Road, and sites on any of them can send details for a fixed quote. Just outside Brompton, we also work in Chatham Waterfront (1 mile south-west), Rochester Riverside (1 mile west), Frindsbury (1 mile north-west), Luton (1 mile south) and Hale (2 miles south-east). Bigger towns within reach include Rainham (4 miles south-east), Park Wood (4 miles south-east), Lordswood (4 miles south), Twydall (3 miles south-east), Hoo St Werburgh (3 miles north-east) and Wigmore (4 miles south-east).

Around Brompton

Recent enquiries here include premises near King George V Public House, Brompton Academy and Hospital and Medical Tuition Service. Other local landmarks include St Michael the Archangel Church (0.8 miles south-west), Great Lines Heritage Park (under half a mile south-east) and Former Ordnance Store At Chatham Gun Wharf (less than half a mile south-west). For rail, the closest station is Chatham station, roughly 0.7 miles south-west. A little further out are Medway Maritime Hospital (0.8 miles south-east) and Pentagon Shopping Centre (less than half a mile south-west). For a walk, there’s Rede Common and Gad's Hill.

Map of Brompton © OpenStreetMap contributors

Maintenance after handover

Problems stay small when the joints are checked regularly. In particular:

  • Respect the cure time before reopening an area
  • Ask cleaners to use a soft cloth and mild cleaner on sealant
  • Look at the sealant around anything that has been moved or replaced
  • Add sealant to the planned maintenance inspection list

Keep an eye out for other trades after we’ve gone. When fittings are moved or cabling added, the sealant nearby is easily disturbed. If that happens, speak to us on 01277 525 020 or send photos by email and we’ll price putting it right.

Sealant installed at the same time typically fails in sequence. The first failures are often a warning about the rest. We’ll tell you which sealant joints need doing first and which can wait.

Honest limits

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

  • Faulty windows rather than failed perimeter sealant
  • Leaking roofs, gutters or flat-roof membranes (those need a roofer)
  • Water from a services leak rather than a joint

If in doubt, speak to us on 01277 525 020 or email a schedule or drawings and we’ll say what we think.

Joints and surfaces we work on

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

What affects the price in Brompton

Quotes vary with the job. Expect it to depend on:

  • Location, for remote and island sites
  • The total length or number of joints
  • Site requirements such as inductions and permits
  • Specialist products, such as fire-rated or hygienic sealants

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote and we’ll explain how it’s made up.

What we need to price the job

A few photos plus some basic facts will normally do. It helps to include:

  • Rough lengths or quantities, or drawings if you have them
  • How the joints are reached, and at what height
  • Clear photos of the problem areas
  • Whether the building will be occupied during the work

Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings that you can work with. For a chat about it beforehand, ring 01277 525 020 or use the quote form.

Accreditations

Trusted. Accredited. Insured.