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

Coloured Sealant contractors in New Malden

Coloured and colour-matched sealant for visible joints in New Malden. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Old colour-matched joints lifting at the edges
  • Smeared sealant on stone or joinery
  • Colour changes after a rebrand or refit
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Coloured sealant for New Malden sites

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

How we handle coloured sealant in New Malden

Coloured sealant is a finishing trade, so it usually comes late in a programme. Adjacent finishes are masked and protected while we work. A 12-month guarantee covers our workmanship. If you’re dealing with joints that need to match a new RAL frame colour and old colour-matched joints lifting at the edges, we can help, on office fit-out finishes, cladding panels and natural stone and brick alike. Searching for sealant specialists in New Malden? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.

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. Once that’s settled, the colour-matched joints are resealed in sections so tenants are disturbed as little as possible.

Work we carry out comes with a 12-month guarantee. Should something we installed fail, call 01277 525 020 or send details through our quote form and we will come back to it.

Where
New Malden (KT3, KT1, SW20)
Wider area
Greater London
Guarantee
12 months on every job
Quote
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

After the work

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

  • Keep the same sealant colour across a brand
  • Agree the sealant colour early and write it into the specification
  • Keep the colour details for future repairs
  • Approve a sample bead on high-profile areas

Colours can soften with light and weathering. Some fading is part of normal ageing outdoors, and resealing restores the look when the time comes.

Ask for a trial bead on high-profile areas. Seeing the cured colour in place avoids surprises.

How the job changes by surface

Paintable sealants

Where no colour in the range is close, a paintable hybrid or PU sealant can sometimes be painted to match. That only works where the joint and specification allow it, as paint can crack on a moving joint.

Brick and masonry

On brick, the sealant often matches the mortar rather than the brick face. We choose a suitable shade from the product’s range.

When it isn’t the sealant

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Paintable products in joints they aren’t suited to
  • Restoring stained stone or masonry next to old sealant
  • Exact bespoke colour matches beyond the product’s range

Not sure which it is? You can phone 01277 525 020 or send details through our quote form and we’ll tell you honestly.

What we seal

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

Building owners, agents and FMs in New Malden

We work for building owners and managing agents on sealant work across single buildings or whole portfolios. One quote can cover more than one site, so there’s one set of paperwork to deal with.

Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first, and our applicators hold CSCS cards.

From enquiry to sign-off

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.

  1. First we agree which sealant type the joint needs.
  2. We compare the target colour with the colours available.
  3. The nearest colour is agreed, with a sample bead where needed.
  4. We cut out the existing bead, clean and set the depth.
  5. We mask, seal and tool to a clean line.
  6. We remove the masking and walk the finished joints with you.

Before we start on site

  • Arrange parking or a loading space
  • For older buildings, check the asbestos register before work
  • Share your working hours and any access restrictions

Ask for a quote

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Get a price

Related advice

Working on commercial sites near New Malden

The area within 2 miles of New Malden holds plenty of hotels. In hotels, sealant shows everywhere, from bathroom joints to reception counters, so colour and a clean finish matter, and the work can be phased so the rest of the hotel keeps trading. New Malden has at least three named business or industrial parks inside a 3-mile radius. Sites like these see regular refits, with shopfronts, offices and staff areas to seal; brand colours often come into it.

Sites a few miles apart, such as Shannon Commercial Centre and Wyvern Industrial Estate, can share one programme and one point of contact. A hotel such as The Bull and Bush Hotel Kingston (1.2 miles west of New Malden) shows how much sealant a hospitality building has on show, from bathroom joints to the bar. Shopping centres and retail parks such as Bentall Centre, 1.9 miles west of New Malden, see a steady turnover of shop fits, each leaving joints where colour and finish matter.

New Malden is about 3 miles south-west of Wimbledon, in Greater London. We send applicators to New Malden for colour-matched joints. 764 places across Greater London fall within our area, New Malden among them. Sites around London have their own page, about 10 miles away.

We take on colour-matched joints across the KT3, KT1 and SW20 postcode area. If your site is on High Street, Ashcombe Square and Melrose Gardens or close by, send details and we’ll quote for colour-matched joints. Main routes into New Malden include the B283. If your building is just outside New Malden, we cover Motspur Park (1 mile north-east), West Barnes (1 mile east), Norbiton (1 mile north-west), Coombe (1 mile north) and Raynes Park (1 mile east). Further afield, our area takes in London (10 miles north-east), City of Westminster (9 miles north-east), Marylebone (9 miles north-east), Kensington (7 miles north), St Pancras (11 miles north-east) and Shoreditch (12 miles north-east).

Landmarks near New Malden

Recent enquiries here include premises near Beverley Park, The Glasshouse pub and Holy Cross School and the streets around them. There’s a railway station in New Malden itself: New Malden station. Nearby you will also find Chessington Castle Hill (3.3 miles south) and Bentall Centre (1.9 miles west). For a walk, there’s Rose Walk and Kingston Hill Road area.

Map of New Malden © OpenStreetMap contributors

Questions we’re asked in New Malden

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

Yes. Inductions, permits and timed loading are routine for us in London. Share the building’s contractor rules and we’ll work to them. All of Greater London is inside the ULEZ, and our planning allows for it

Is Shannon Commercial Centre, near New Malden, within your area?

Yes, sites like Shannon Commercial Centre are within our area, along with the rest of New Malden. Send details of the unit and the work through our quote form for a quick quote.

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

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

How do I request a quote?

The quote form is the simplest route, though you can also give us a call on 01277 525 020 or email us. Include photos or drawings if you have them.

Will your applicators have CSCS cards?

Yes. If you need card details for site access, tell us and we will confirm them with the quote.

Does weather matter for sealant work?

It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.

What site paperwork can you supply?

Each site asks for different documents, so tell us what you need and we will confirm it when we quote.

Why it’s worth doing now in New Malden

It’s far cheaper to approve a sample than to strip and redo a full run. A sample takes little time. Failed sealant in a building in New Malden can quickly affect neighbours, tenants or the floor below: water travels through shared structures, and a small leak becomes a dispute between occupiers. Putting it right early is less disruptive than dealing with the consequences.

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why us?

  • 12 months’ guarantee on every job
  • Public liability insurance in place
  • Colours chosen to suit frames, cladding or finishes where possible
  • One phone line for London, the South East and Scotland

Take a look at how commercial sealant jobs are priced and our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.