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

Commercial sealant contractors in Allhallows, Medway

We carry out sealant work for offices, shops, hotels and other commercial buildings in Allhallows and the surrounding area. Send photos or drawings for a fixed quote.

  • Weathered facade sealant that no longer flexes
  • Water staining near frames, panels or ceilings
  • Untidy joints in a reception, shop floor or lobby
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Commercial sealant contractors in Allhallows

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

From enquiry to sign-off

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. Then we strip out anything that has failed, prepare every joint and seal it. Jobs in and around smaller places like Allhallows are typically planned as a single visit, so photos and measurements up front really help. That way the right products come on the day.

  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. Where parts of the building must stay open, the work is phased.
  4. Every failed bead is removed rather than covered.
  5. Each joint gets a suitable sealant, laid to depth and tooled.
  6. We check the work with you, and the 12-month guarantee starts.

Preparing the site

  • Send any specification or drawings in advance
  • Send your site hours and access windows
  • Tell us which areas need to stay in use

Ask for a quote

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, ring 01277 525 020 or send details through our quote form.

Get a quick quote

Related advice

Commercial sealant contractors for commercial buildings in Allhallows

How long a joint lasts is decided before any sealant leaves the gun. Old silicone gives new sealant nothing to grip, so every trace of it is removed, then both faces are cleaned back to sound, dry material with no dust or grease on them. Primer is used wherever the manufacturer calls for it on that surface. If you are dealing with water staining near frames, panels or ceilings and movement joints packed with grit and debris, we can put it right. Searching for sealant specialists in Allhallows? We have been sealing commercial buildings since 2005.

A lot of what we do in Allhallows is replacing sealant that has done its years: split, chalky or peeling, with leaks or mould starting behind it.

Business units in the countryside around places like Allhallows are often converted barns, stables or farmyards. Old masonry beside new aluminium, timber and plasterboard gives plenty of joints between materials that move differently.

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

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Allhallows (ME3)
Wider area
Medway
Cover
12 months on our workmanship
Quotes
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026

Surface by surface

Window and door perimeters

Where frames meet the surrounding wall, sealant is the weather line. Failed perimeters are cut out and cleaned, backing goes into deeper gaps, and the joint is resealed with a low-modulus neutral-cure silicone or another suitable product.

Facade and cladding joints

Facade joints move every day as panels warm and cool. They need a sealant with the right movement capability, laid at the right depth. We confirm the access in place before we quote.

Building owners, agents and FMs in Allhallows

Hospitality, education, healthcare, office and retail clients come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

We work for building owners and managing agents on everything from one building to a spread of sites. Several sites can go on one quote, which keeps the paperwork simple.

Your questions answered

Can the sealant on our Allhallows premises match the finishes?

Yes, we can typically get close to most finishes from the product’s colour range. Send colour references or photos and we will confirm what’s available for the product.

Is Allhallows too far out for you?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.

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.

How do we get a quote?

Send photographs, drawings or a list of locations through our quote form. Where we need to see it, we will arrange a site visit, then send a fixed quote.

Do you check for asbestos before removing sealant?

We check the asbestos register or survey before any old sealant is disturbed. The duty to manage asbestos sits with the dutyholder and removing it isn’t something we do.

Will the building have to shut during the work?

It’s mostly about sequence: we agree access windows, phase the work and keep enough facilities open. Tell us what has to stay open and we’ll plan the job around it.

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

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

When something else is needed

Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:

  • Broken glass or blown double-glazed units
  • Removing asbestos-containing materials (a licensed or specialist contractor’s job)
  • Leaking roofs, gutters or flat-roof membranes (those need a roofer)

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

What we seal

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

Commercial sealant contractors in Allhallows: the local picture

Allhallows lies within about 1 mile of the sea. For shops, hotels and offices, that means frontage and frame joints that weather faster than they would inland. Sea-facing elevations are normally where failed joints show first. Allhallows sits in one of the drier corners of the country, the South East. That helps, but frost and condensation on glass and coated frames still stop outside sealing on some winter mornings.

Whatever the building in Allhallows, commercial sealant work starts with cutting out the failed bead and cleaning the joint back to sound material.

Allhallows is about 5 miles south-east of Canvey Island, in Medway. Looking for commercial sealant contractors in Allhallows? We can help. Our Medway coverage takes in 54 places, from busy centres to rural villages. London is covered too, around 32 miles from Allhallows.

Work on sealant joints is covered throughout ME3, for business premises of every kind. For a building on St Andrew's Walk, Avery Way and St Matthew's Way or nearby, we can quote for sealant joints. We also cover Allhallows-on-Sea (1 mile north-east), Lower Stoke (1 mile south), Middle Stoke (1 mile south), Stoke (2 miles south-west) and St Mary Hoo (2 miles west). Nearby towns on our patch include Gillingham (7 miles south-west), Chatham (9 miles south-west), Rochester (8 miles south-west), Rainham (8 miles south), Strood (9 miles south-west) and Luton (8 miles south-west).

Near you in Allhallows

Locally, jobs take us to sites close to Rose And Crown Public House, among other places. For rail, the closest station is Chalkwell station, about 5 miles north. Nearby you’ll also find Chartwell Private Hospital (5.5 miles north) and Bay Museum (3.9 miles north-west). Green spaces nearby include Bishop Saltings.

Map of Allhallows © OpenStreetMap contributors

Common problems we fix in Allhallows

A split down the middle of the bead tells a different story. Typically the movement was too much for the sealant chosen because the bead was too thin, the joint over-stretched or the movement class wrong. The same product in the same joint tends to fail the same way, so width, depth and product are checked before we quote.

It’s worth sending us details if you spot any of the following:

  • Smeared sealant across finishes from a rushed job
  • Damp patches where an external joint has failed
  • Weathered facade sealant that no longer flexes
  • Frame mastic that has hardened and come away from the wall

Shops and cafés around stations like Chalkwell station (5 miles north of Allhallows) trade from early, so work is timed around them.

Comparing quotes

  • How long is the guarantee, and what does it include?
  • Can the work be phased to keep areas open?
  • Their public liability cover
  • The named product and why it was chosen

Questions to ask before you appoint anyone

Site staff or a sealant specialist?

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

Accreditations

Trusted. Accredited. Insured.