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

Coloured and colour-matched sealant in St Leonards, Hampshire

Coloured sealant in St Leonards, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.

  • Coloured joints that have cracked with movement
  • Previous reseals that don’t match the original
  • Old sealant that has yellowed, darkened or faded
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
Constructionline member
£5m public liability

Coloured sealant for businesses in St Leonards

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

Doing it in-house

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.

How we handle coloured sealant in St Leonards

Natural materials vary across a single elevation: sandstone, granite, brick and stained timber rarely have one flat colour. We choose a colour that reads well across the surface rather than chasing one spot, with a sample on site if colour is critical. If you have old sealant that has yellowed, darkened or faded and previous reseals that don’t match the original, we can help, whatever the surface. A single leaking joint is often how a building in St Leonards first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.

For a business in St Leonards, it usually makes sense to put the sealant work into one visit: shopfront, washroom, kitchen and any external joints done together. That keeps travel and disruption down, and where colour matters on the frontage, we will confirm what’s available for the product.

We stand by our work: 12 months, guaranteed. That covers our preparation and application.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
St Leonards (BH24)
Wider area
Hampshire
Guarantee
12 months on every job
Price
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026

Building owners, agents and FMs in St Leonards

Building owners and managing agents use us on everything from one building to a spread of sites. One quote can cover more than one site, so there’s one set of paperwork to deal with.

Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

How a job runs

Before we leave any area, the masking comes off, the area is cleaned and every joint is checked with your site contact. Where the sealant needs time to cure before use, we tell you and sign the area. Several jobs near St Leonards can be grouped on one trip. Tell us your site hours and we will plan around them.

  1. Photos or drawings show us the finishes and joints.
  2. Colour options from the specified product’s range are shared with you.
  3. Tell us your site hours and access windows and we will plan around them.
  4. Joints are prepared, primed where specified and backed.
  5. The agreed colour is installed and tooled neatly.

What we need from you

  • For older buildings, check the asbestos register before work
  • Point out parking and an unloading spot
  • Let us know about inductions and permits

Request a quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to call 01277 525 020 or email drawings and photos.

Ask for a quote

Related advice

Questions we’re asked in St Leonards

Is St Leonards off your patch?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

Does a hotel in St Leonards need to shut while its sealant is renewed?

In most cases no closure is needed: we work room by room or floor by floor. The plan is built around your bookings.

Are you CHAS accredited and on Constructionline?

Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.

Can we specify the colour by RAL number?

Yes. RAL references are a common way to specify sealant colour. We check what that product is made in and agree the nearest option.

Does coloured sealant change colour outdoors?

Some change over time is normal. How much depends on the product, the colour and the exposure, and we can’t promise a colour that never alters.

Is any job too small?

Small jobs are welcome alongside larger packages. Send details for a fixed quote.

Can we approve the colour on site?

Yes. Where colour is critical, we can agree a short sample bead in a discreet spot. Cured sealant can look slightly different from the wet bead.

When something else is needed

Part of a good diagnosis is knowing where sealant stops. You’ll hear from us if the cause turns out to be one of these:

  • Repairing damaged frames or cladding
  • Stopping sealant from ever changing colour outdoors
  • Overpainting a joint that needs a non-paintable product

Not sure which it is? You can speak to us on 01277 525 020 or email a schedule or drawings and we’ll tell you honestly.

Surfaces we seal

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

Quoting for work in St Leonards

We price every job individually. The main factors are:

  • Whether the work must be split into stages
  • How much existing material needs removing
  • Quantities, in metres or numbers
  • Which sealant the job calls for

Pricing colour-matched joints depends on quantities, condition and access, and any specification that applies. Ask us for a fixed quote.

What we need to price the job

There’s no need for a formal survey. These details are enough to start:

  • When you need the work done
  • Whether the building will be occupied during the work
  • The asbestos register, for older buildings
  • Approximate linear metres or a joint schedule

For a fixed quote, give us a call on 01277 525 020 or send photos by email. You can also send details through our quote form.

Surface by surface

Office fit-outs

Partition frames and joinery are often in a set colour. We choose sealant colours to suit as specified.

Natural stone

Sandstone, limestone and granite each have distinct tones. Colour is agreed on site where possible.

What St Leonards’s businesses ask us to seal

At least three named trading, business or retail sites lie within about 3 miles of St Leonards. Each new occupier on a park like these tends to refit, from reception to staff kitchen, often in a colour the occupier specifies. There are a number of hotels within about 2 miles of St Leonards. A hotel refurbishment is full of joints that guests will see, and a matched colour keeps them discreet.

In hotels such as St Leonards Hotel, under half a mile to the east of St Leonards, refurbishments typically mean bathroom, bar and reception joints where a matched sealant colour has to sit with the finishes. Sites a few miles apart, such as Ashley Heath Industrial Estate and Long Meadow Industrial Estate, can share one programme and one point of contact. Industrial estates such as Ashley Heath Industrial Estate (1.4 miles north-west of St Leonards) have offices, trade counters and welfare areas whose sealant ages like any other building’s.

St Leonards is in Hampshire. Anywhere in BH24, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. St Leonards is one of 723 places in Hampshire on our list for colour-matched joints. There’s a separate page for Southampton, about 21 miles away.

Business premises anywhere in BH24 are within our area. Streets here include Cedar Avenue, Birch Close and Malmesbury Road. We also cover Ashley Heath (1 mile north), St Ives (1 mile north-east), Matchams (1 mile south-east) and Avon Castle (2 miles east). Nearby towns on our patch include Lymington (14 miles east), New Milton (10 miles south-east), Ringwood (3 miles north-east), Barton on Sea (10 miles south-east), Ashley (10 miles south-east) and Milford on Sea (13 miles south-east).

Local landmarks in St Leonards

We work on buildings around Avon Heath Country Park. A little further out are St Leonard's Hospital (0.9 miles south-west) and Stapehill Abbey (3.9 miles south-west). Open spaces near St Leonards include Linbrook Lake and Blashford Lakes.

Map of St Leonards © OpenStreetMap contributors
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