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

Coloured Sealant contractors in North Greenwich

We carry out coloured and colour-matched sealant for visible joints in North Greenwich and the surrounding area. Send photographs or drawings for a fixed quote.

  • Standard-colour sealant spoiling a high-end finish
  • Smeared sealant on stone or joinery
  • Dirty, discoloured joints in public areas
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Need coloured sealant in North Greenwich?

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

What the job involves on each surface

Office fit-outs

Office joinery and frames typically follow a colour scheme. We choose sealant colours to suit and agree them before work starts.

Hotel interiors

Hotels use colour-matched sealant in bathrooms, bedrooms and public areas. Sanitary silicone comes in colours too.

About our coloured sealant in North Greenwich

Stone, brick and cladding each bring their own colour challenge: a stone or brick facade shifts in tone from one area to the next. The aim is a sealant colour that sits comfortably against the whole surface. If you have hotel refurbishments with a set colour scheme and old colour-matched joints lifting at the edges, we can put it right. For commercial sealant work in North Greenwich, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

London’s commercial stock mixes period buildings turned into offices with modern glass and steel, so one job can involve stone, brick, powder-coated frames and laminate in a single visit. The right product goes on each, in a colour chosen to suit where the joint is seen.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
North Greenwich (E14, SE8, SE10)
Wider area
Greater London
Cover
12 months on our workmanship
Quotes
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026

Commercial premises in North Greenwich

The 2 miles around North Greenwich include three care or nursing homes. Care settings have kitchens, lounges and corridors where joints need to be neat and easy to clean; colours can be chosen to suit the interior. The area within 2 miles of North Greenwich holds a good number of hotels. Hotel refurbishments are where a matched sealant colour earns its place: bathroom, bar and reception joints have to sit with the finishes, with rooms done in turn while the rest stay let.

For a hotel such as Hotel Britannia International, 0.9 miles to the north of North Greenwich, the colour of a joint at the bar or the bath matters to the look of the room. If you have premises on more than one site, say at Brookmarsh Industrial Estate and Greenwich Centre Business Park, one contractor and one quote can cover both.

North Greenwich is about 1 mile north-west of Greenwich, in Greater London. Our applicators travel to North Greenwich for work on colour-matched joints. 764 places across Greater London fall within our area, North Greenwich among them.

Work on colour-matched joints is covered throughout E14, SE8 and SE10. If your site is on Creek Road, Wynan Road and Undine Road or close by, send details and we’ll quote for colour-matched joints. We also cover Isle of Dogs (1 mile south-east), Millwall (1 mile west), Cubitt Town (1 mile north-east), Deptford (1 mile south-west) and Greenwich (1 mile south-east) for colour-matched joints. Further afield, our area takes in London (3 miles west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (5 miles north-west) and Shoreditch (4 miles north-west).

Landmarks near North Greenwich

In North Greenwich, that means premises near Laban Centre, Canary Wharf College 3 and St. Paul's and the streets around them. Also close by are Mudchute Park and Farm (under half a mile north-east) and The Ferry House Public House (less than half a mile south-east). For rail, the closest station is Greenwich station, about 0.8 miles south. Well-known places in the area include Old Royal Naval College (0.7 miles south-east) and Greenwich Castle (1.1 miles south-east). For a walk, there’s Sue Godfrey Nature Park and Tower Hill.

Map of North Greenwich © OpenStreetMap contributors

Common problems we fix in North Greenwich

Failed sealant still has to be dealt with, whatever its colour: splits, adhesion loss and hardening all happen. We cut out and reseal in the agreed colour.

What tends to prompt an enquiry:

  • Shop fits that need consistent sealant colours across sites
  • A bead that fights the cladding or frame colour
  • A run of joints in mismatched shades
  • Colour changes after a rebrand or refit

Units at places like Surrey Quays Shopping Centre (to the west of North Greenwich) are refitted as brands change, and the joints have to suit each new scheme.

What your quote should include

  • Whether primer will be used where the manufacturer specifies it
  • Are they CHAS accredited or on Constructionline?
  • Which product they’ll use, and why it suits the joint
  • Can the work be phased to keep areas open?

Questions to ask before you appoint anyone

Aftercare for building managers

Problems stay small when the joints are checked regularly. Specifically:

  • Clean coloured joints with mild products
  • Don’t let trades patch coloured joints with a random sealant
  • Standardise colours across a portfolio
  • Settle the colour with the designer at the start

Include coloured sealant in planned building checks. Watch for cracks, peeling or discolouration, and plan resealing before it looks tired.

Standardise the sealant colour on multi-site work. It keeps repairs and new sites consistent for whoever reseals next.

FAQs: North Greenwich

Will you take on work at estates like Brookmarsh Industrial Estate, close to North Greenwich?

Yes. Our area takes in North Greenwich and its surroundings, with estates and business parks such as Brookmarsh Industrial Estate included. To start, just ring 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.

Can you cope with the access rules in a London building?

Yes, most London buildings have access rules of some kind, and we plan around them. Share the building’s contractor rules and we will work to them. All of Greater London is inside the ULEZ, and our planning allows for it

Can we specify the colour by RAL number?

Yes. Many specifications give the sealant colour as a RAL number. We’ll confirm the colours available for the specified product.

Can we see a sample before the full job?

Yes. We can fit a sample into the programme so sign-off doesn’t hold up the work.

How do you deal with asbestos in old sealant?

Managing asbestos is the dutyholder’s responsibility, so we’ll ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

Do you seal on top of existing sealant?

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

Are you fully insured?

Yes. We’re fully insured, and the certificate can go with your quote.

Diagnose, treat, sign off

Site rules come first: sign-in, induction and whatever permit system the building uses. Once we’re cleared to begin, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. Planning a London job such as one in North Greenwich starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.

  1. First we agree which sealant type the joint 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. We mask, seal and tool to a clean line.
  6. We remove the masking and walk the finished joints with you.

Preparing the site

  • Tell us which areas need to stay in use
  • Move anything stored against the joints
  • Let us know about inductions and permits

Quotes

For a fixed quote, speak to us on 01277 525 020 or email drawings and photos with the site address and an outline of the work. You can also send details through our quote form.

Get a price

Related advice

What sealant work can’t fix

Not every problem is a sealant problem, and we are upfront when that’s the case. It won’t fix:

  • Preventing all fading from sunlight and weathering
  • Repairing damaged frames or cladding
  • Finishes that change colour from one area to another

If you’re not sure, just give us a call on 01277 525 020 or use the quote form and we’ll give you a straight answer before you book.

Joints and surfaces we work on

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

Should maintenance staff do it?

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

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

Accreditations

Trusted. Accredited. Insured.