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

Coloured Sealant in Sarratt

Our CSCS-carded applicators take on coloured and colour-matched sealant for visible joints in Sarratt. Send details for a fixed quote.

  • White or grey sealant that clashes with the finish
  • Fit-outs with a sealant colour in the specification
  • Failed coloured sealant that has split or peeled
1
Send details
Tell us about the site, with photos if you have them.
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
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m PL insurance

Coloured sealant for Sarratt sites

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

From enquiry to sign-off

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and the sealant is tooled off neatly. Jobs in and around smaller places like Sarratt are usually planned as a single visit, so photographs and measurements up front really help. Then the right materials arrive with us.

  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

  • Agree which areas must stay open
  • Move anything stored against the joints
  • Have the specification and drawings to hand

Ask for a quote

Every quote starts with the facts: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.

Ask for a quote

Read more

Coloured sealant in Sarratt, done properly

A colour-matched bead still has to work as a seal. Faces are prepared, depth is fixed with rod and the bead is tooled onto two sides only. Clean masking and steady tooling give the sharp lines colour work needs. If you have stained or mouldy coloured joints in washrooms and a run of joints in mismatched shades, 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 Sarratt, that means joint design, primers and backing rod as standard.

Work in smaller places such as Sarratt tends to come one building at a time: a pub kitchen, a hall, a small office. We plan the visit so everything on the list is done in one go, with the right products and colours on hand.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, 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
Where
Sarratt (WD3)
Wider area
Hertfordshire
Cover
A 12-month guarantee
Quote
Quoted before any work starts
Telephone
01277 525 020
Page updated
3 November 2026

Commercial clients in Sarratt

Hospitality, education, healthcare, office and retail clients come to us directly as well. The work is planned around how the building runs, so the building keeps working while we do.

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in Sarratt can sit alongside others in a wider programme.

Should maintenance staff do it?

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 where general trades tend to cut corners.

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.

Common problems we fix in Sarratt

Colour-matched sealant is typically requested because a standard bead has spoiled the finish: white silicone against dark cladding, grey against timber or a yellowed bead on stone. Replacing it with a suitable colour restores the intended look.

Site and facilities staff are often the first to spot these:

  • Patch repairs in several different colours
  • Untidy coloured beads with ragged edges
  • Shop fits that need consistent sealant colours across sites
  • Old sealant that has yellowed, darkened or faded

Premises within reach of Chorleywood station (to the south-west of Sarratt) often have busy frontages where joints are seen by everyone passing.

Before you book anyone

  • What level of public liability insurance do they hold?
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Do they follow the manufacturer’s priming guidance?
  • Health and safety accreditation such as CHAS

How to choose a sealant contractor

Why deal with it now?

Resealing a full run gives a consistent colour. Small repairs at different times rarely match, so a planned reseal often looks better value. For buildings around smaller places like Sarratt, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

The product called for affects the cost, and so does the preparation. Access, phasing and site rules also count.

Why appoint us

  • Products installed to the manufacturer’s instructions
  • Colours confirmed for the specified product
  • Failed material removed, not covered up
  • Clear, fixed quotes

See how commercial sealant jobs are priced or our accreditations.

Honest limits

Some faults sit outside our scope, and we say so rather than covering them up:

  • Repairing damaged frames or cladding
  • A colour that never alters with age
  • Overpainting a joint that needs a non-paintable product

If in doubt, speak to us on 01277 525 020 or email us and we’ll say what we think.

What we seal

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

Common questions from Sarratt clients

Can you match sealant colours for premises in Sarratt?

Yes, sealants come in a wide range of standard colours, and matching to RAL references, cladding, stone or frames is a common request. The quote lists the colours the product is made in.

Is a smaller place like Sarratt outside your area?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.

What’s the quickest route to a quote?

There are four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photos and a postcode.

Do you have public liability insurance?

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

Is any job too small?

Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.

What if there’s asbestos in the old mastic?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.

Does the weather affect the 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.

Sealant on show in Sarratt’s commercial buildings

Two care or nursing homes sit less than 2 miles from Sarratt. In care settings, a neat joint at a kitchen worktop or a lounge window is part of keeping the place easy to clean. Rainfall across the South East, Sarratt included, is lower than in many parts of the UK. That helps, but frost and condensation on glass and coated frames still stop outside sealing on some winter mornings.

A lasting commercial joint around Sarratt begins with the old bead fully out and the faces clean and dry.

Sarratt is about 3 miles north of Rickmansworth, in Hertfordshire. Commercial clients in Sarratt can call on us for colour-matched joints. Sarratt is one of 371 places we cover in Hertfordshire. London is covered too, around 21 miles from Sarratt.

We cover the WD3 postcode districts. For a building on Alexandra Road, Downer Drive and The Briars or nearby, send details and we’ll quote for colour-matched joints. Just outside Sarratt, we also work in Micklefield Green (1 mile south-east), Bucks Hill (1 mile north-east), Chandler's Cross (2 miles south-east), Loudwater (2 miles south) and Chorleywood West (2 miles south). Nearby towns on our patch include Watford (4 miles east), Hemel Hempstead (5 miles north), St Albans (8 miles north-east), Welwyn Garden City (15 miles north-east), Harpenden (11 miles north-east) and Hatfield (12 miles north-east).

Local landmarks in Sarratt

Locally, jobs take us to sites close to The Boot Public House and St Clement Danes School and the streets around them. The closest station to Sarratt is Chorleywood station, about 2.3 miles south-west. Well-known places in the area include Chiltern Open Air Museum (3.8 miles south-west) and Leavesden Hospital (4 miles east). For a walk, there’s Sarratt Bottom nature reserve and Tumbling Bay.

Map of Sarratt © OpenStreetMap contributors
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