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

Coloured and colour-matched sealant in Three Mills, Greater London

Commercial sealant work in Three Mills for contractors, FMs and building owners: coloured and colour-matched sealant for visible joints, with a fixed quote first.

  • Stained or mouldy coloured joints in washrooms
  • Weathered sealant that no longer matches
  • Shop fits that need consistent sealant colours across sites
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS accredited
£5m public liability

Coloured sealant for businesses in Three Mills

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Different surfaces, different methods

Paintable sealants

Overpainting is most common on internal joints with little movement. We’ll tell you if a joint needs a non-paintable product.

Hotel interiors

Phased work can be planned so areas stay in use. Tell us your site hours and access windows and we will plan around them.

About our coloured sealant in Three Mills

Coloured sealant work ranges from a new shop fit to replacing failed joints on an existing building on sites in Three Mills. When replacing old joints, the new colour typically has to match what’s already there, particularly where the building’s look matters. Most enquiries involve weathered sealant that no longer matches and failed coloured sealant that has split or peeled, on hotel bathrooms and public areas, powder-coated and anodised frames and natural stone and brick. Most enquiries from Three Mills 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.

Much of the planning for a London commercial job is about getting in and out: booked loading, goods-lift times, the permit system and a place to stage materials. With access agreed, we work through the colour-matched joints a section at a time, keeping disruption to tenants low.

Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Place
Three Mills (E3, E15, E14)
Wider area
Greater London
Guarantee
12 months on our workmanship
Price
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Sealant on show in Three Mills’s commercial buildings

Most London commercial buildings run contractors through a reception, a permit system and booked goods-lift slots. Our planning starts from those rules rather than working round them later. Three Mills has at least three named business or industrial parks inside a 3-mile radius. Each new occupier on a park like these tends to refit, from reception to staff kitchen, often in a colour the occupier specifies.

For premises near West Ham station, 0.5 miles east of Three Mills, footfall is part of the plan: work is phased so shops and offices keep trading. For a hotel such as CityStay Hotel, 0.6 miles to the west of Three Mills, the colour of a joint at the bar or the bath matters to the look of the room.

Three Mills is about 1 mile south of Stratford, in Greater London. We send applicators to Three Mills for colour-matched joints, handled exactly as we handle every other area. 764 places across Greater London fall within our area, including Three Mills.

Work on colour-matched joints is covered throughout E3, E15 and E14, whatever the building. Streets here include Gay Road, Bruce Road and Edgar Road, and sites on any of them can send details for a fixed quote. Close to Three Mills, our area also takes in Mill Meads (1 mile north), Bromley-by-Bow (1 mile south-west), Old Ford (1 mile north-west), Bow (1 mile west) and Bow Common (1 mile south-west). Further afield, our area takes in London (4 miles south-west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (9 miles west), St Pancras (5 miles west) and Shoreditch (3 miles west).

Landmarks near Three Mills

We work on buildings around Manorfield Primary School, London International School of Performing Arts and Bob's Park. The nearest railway station is West Ham station, about 0.5 miles east of the centre. A little further out are Stratford Centre (1 mile north) and St Clement's Hospital (0.9 miles west). Green spaces nearby include Hollow Pond and Old Ford Island.

Map of Three Mills © OpenStreetMap contributors

Site staff or a sealant specialist?

Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

From enquiry to sign-off

We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area. For a job in Three Mills, access comes first. Give us the hours we can be on site and we will schedule to suit.

  1. We confirm the joint type and the product it needs.
  2. We compare the target colour with the colours available.
  3. You approve the colour, on site if it’s critical.
  4. The existing bead comes out, then faces are cleaned and backed.
  5. Edges are masked and the coloured sealant applied and tooled.
  6. We remove the masking and walk the finished joints with you.

Preparing the site

  • Make sure the joints can be reached
  • Have the specification and drawings to hand
  • Let us know about inductions and permits

Get a fixed quote

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, phone 01277 525 020 or email the details over.

Get a price

Related advice

When something else is needed

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • A guaranteed perfect match to every finish
  • Paintable products in joints they aren’t suited to
  • A colour that never alters with age

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

What we seal

  • Cladding panels
  • Powder-coated and anodised frames
  • Office fit-out finishes
  • Hotel bathrooms and public areas
  • Natural stone and brick
  • Shop-fit joinery and counters

What we are called out for in Three Mills

Mould and staining discolour coloured joints in some areas. Mould that has grown into sealant typically can’t be cleaned out.

If one of these sounds familiar, it’s time for a closer look:

  • Patch repairs in several different colours
  • White or grey sealant that clashes with the finish
  • Marked sealant in hotel bathrooms
  • Poorly tooled joints on visible finishes

Sites a few miles apart, such as Crescent Court Business Centre and Datapoint Business Centre, can share one programme and one point of contact.

What to look for in a quote

  • Their pre-qualification and accreditations
  • What level of public liability insurance do they hold?
  • Will failed sealant be removed rather than covered?
  • The named product and why it was chosen

Questions to ask before you appoint anyone

Cost factors for colour-matched joints

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

  • Quantities, in metres or numbers
  • Removal of failed or old sealant
  • The product specified
  • Travel to remote or island sites

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

Details that help us quote

We can often quote from photos and a few details. Please tell us:

  • Specification clauses that apply
  • Where the site is, with the postcode
  • A wide shot and a close-up of the area
  • Asbestos survey details if the building is older

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, call 01277 525 020 or email us.

Your questions answered

Must a hotel around Three Mills close while you work?

Rarely, if ever. We take a few rooms out at a time. Housekeeping and our team agree each day’s rooms.

Can you work in a London building with booked loading and goods-lift slots?

Yes, we plan every London job around the building’s own access rules. Send the building rules and access times with your enquiry.

What do you charge?

Every job gets its own fixed quote. To get one, give us a call on 01277 525 020 or send photos by email.

How do you deal with asbestos in old sealant?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

Do your applicators hold CSCS cards?

Yes. Should the site need card details in advance, tell us and we’ll confirm them with the quote.

How do we ask for a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photos and a postcode.

Can you fit around our working hours?

We’re in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.

Accreditations

Trusted. Accredited. Insured.