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

Coloured Sealant in Arnos Grove

Coloured and colour-matched sealant for visible joints in Arnos Grove and across Greater London. CHAS accredited and fully insured, with a 12-month guarantee.

  • A run of joints in mismatched shades
  • Smeared sealant on stone or joinery
  • Old sealant that has yellowed, darkened or faded
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
Constructionline member
£5m public liability

Coloured sealant across Arnos Grove

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

From enquiry to sign-off

At the end of each section, we remove the tape, clean down and inspect every joint. If an area should be left alone while the sealant cures, we say how long and put signs out. Most London premises stay occupied while we are on site, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.

  1. The sealant type is chosen for the joint first, then the colour.
  2. We compare your RAL reference or sample with the colours made for that sealant.
  3. A short trial length can be approved before the full run on visible work.
  4. We remove the existing bead, clean the faces and set the depth.
  5. The coloured sealant is applied and tooled with clean, masked edges.

Preparing the site

  • Explain the parking and delivery arrangements
  • Point out any areas we must not close
  • Send any specification or drawings in advance

Ask for a quote

Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. The easiest way is to call 01277 525 020 or send photos by email.

Get a price

Advice

About our coloured sealant in Arnos Grove

Matching to anodised or powder-coated frames is a common request. We compare the RAL reference with the colours made for the specified sealant. Where nothing in the range is close enough, a paintable hybrid or PU sealant may be an alternative, if the joint and specification allow. If you have previous reseals that don’t match the original and discoloured joints on a visible elevation, we can put it right, whatever the surface. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Arnos Grove, that means joint design, primers and backing rod as standard.

For managing agents and FMs looking after premises in Arnos Grove, access is typically the first question: 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.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Arnos Grove (N11, N14, N13)
Wider area
Greater London
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026

Questions about Arnos Grove

Do you work in London buildings with loading restrictions?

Yes, most London buildings have access rules of some kind, and we plan around them. Say when the building is occupied and when it’s quiet, and we’ll plan accordingly. All of Greater London is inside the ULEZ, and our planning allows for it

Is Brunswick Industrial Estate, near Arnos Grove, within your area?

Yes. Our area takes in Arnos Grove and its surroundings, with estates and business parks such as Brunswick Industrial Estate included. Photos and a short description are enough for a first look.

Do you take on colour-matched sealant for shop fits and multi-site roll-outs?

Yes. Tell us the product and colour reference and we’ll confirm availability and a fixed quote follows. We plan around trading hours where we can, within our working week.

Do you seal on top of existing sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.

Which sealant will you use?

The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Do you hold CHAS accreditation?

Yes. We are CHAS accredited and a Constructionline member.

Do you work to architects’ specifications?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.

Why deal with it now?

Matching new joints to the existing ones is easier when the whole run is done together. Piecemeal repairs over several years tend to drift in colour. Getting scaffold, permits or access booked in Arnos Grove takes effort, so while access is arranged it pays to renew all failing joints, not just the worst.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.

What you get with us

  • Joints cleaned back to sound surfaces
  • Colours confirmed for the specified product
  • CHAS accredited
  • Over 20 years of commercial sealing

Read how commercial sealant jobs are priced or our accreditations and insurance.

Different surfaces, different methods

Shop-fit and joinery finishes

Retail fit-outs mix many finishes in a small space. We choose sealant colours that suit each junction as agreed with the designer.

Natural stone

Stone facades and stone interiors vary widely. Colour is agreed on site where possible.

What we can’t put right

We check first that sealant really is the fix. It won’t put right:

  • Colour variation across natural stone or brick that no single shade can match
  • Exact bespoke colour matches beyond the product’s range
  • Paint over sealant on joints that move too much

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

Surfaces we seal

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

Site staff or a sealant specialist?

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.

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

For managing agents and facilities managers

If you look after buildings for someone else, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.

CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.

Shops, offices and hotels in and around Arnos Grove

There are six care or nursing homes within about 2 miles of Arnos Grove. Care homes need tidy, cleanable joints in kitchens, corridors and communal rooms, often in colours that suit the décor. Most London commercial buildings run contractors through a reception, a permit system and booked goods-lift slots. We work within them, one zone at a time.

Like every part of Greater London, Arnos Grove is covered by the ULEZ, so vehicle access, loading and parking are planned before the first visit. If you have premises on more than one site, say at Brunswick Industrial Estate and Friern Bridge Retail Park, one contractor and one quote can cover both. Premises within reach of New Southgate station, 0.6 miles to the west of Arnos Grove, often have busy frontages where joints are seen by everyone passing.

Arnos Grove is about 3 miles north-east of Finchley, in Greater London. If you’re looking for coloured sealant in Arnos Grove, we can help, as we do across Greater London. Arnos Grove is one of 764 places we cover in Greater London. For work in that direction, see our London page.

Work on colour-matched joints is covered throughout N11, N14 and N13, whatever the building. Among the streets we cover are Oak Lane, High Road and York Road, and sites on any of them can send details for a fixed quote. With the A109 and A1004 nearby, Arnos Grove is easy to get to with materials and equipment. Just outside Arnos Grove, we also work in New Southgate (1 mile west), Bounds Green (1 mile south), Southgate (1 mile north), Palmers Green (1 mile east) and Oakthorpe Park (1 mile east). Nearby towns on our patch include London (8 miles south), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (9 miles south), St Pancras (6 miles south) and Shoreditch (7 miles south).

Local landmarks in Arnos Grove

Around Arnos Grove, our work takes us to commercial buildings near The Ranelagh pub, Broomfield School and Broomfield Park and the streets around them. Arnos Grove’s nearest station is New Southgate station, about 0.6 miles west. Well-known places in the area include Broomfield House Museum (0.5 miles east) and The Mall Wood Green (1.7 miles south-east). Open spaces near Arnos Grove include Highgate Hill and Darland's Lake.

Map of Arnos Grove © OpenStreetMap contributors
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