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

Coloured Sealant in Itchen

Planning work on a colour-matched joint in Itchen? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Dirty, discoloured joints in public areas
  • Joints that need to match a new RAL frame colour
  • Weathered sealant that no longer matches
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Coloured sealant across Itchen

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Quoting for work in Itchen

Quotes vary with the job. Expect it to depend on:

  • Specialist products, such as fire-rated or hygienic sealants
  • The site’s rules and procedures
  • Removal of failed or old sealant
  • Travel to remote or island sites

Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.

Before you send an enquiry

A few photos plus some basic facts will normally do. It helps to include:

  • Any specification or named product
  • The type of building and who uses it
  • The asbestos register, for older buildings
  • The postcode of the building

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or speak to us on 01277 525 020 or use the quote form to discuss it first.

Coloured sealant for commercial buildings in Itchen

Natural materials vary across a single elevation: sandstone, granite, brick and stained timber rarely have one flat colour. The aim is a sealant colour that sits comfortably against the whole surface. Most enquiries involve weathered sealant that no longer matches and failed coloured sealant that has split or peeled, across cladding panels, powder-coated and anodised frames and natural stone and brick. A single leaking joint is often how a building in Itchen 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.

Around smaller places such as Itchen, small firms often work from converted barns, yards and rural units. Old masonry and timber meet new glazing and partitions in these buildings, and every junction needs a sealant that suits it.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

Location
Itchen (SO19, SO14)
Wider area
Southampton
Guarantee
12 months on our workmanship
Price
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Your questions answered

Must a hotel around Itchen close while you work?

Rarely, if ever. We take a few rooms out at a time. Tell us your quiet periods and access windows and we will plan around them.

Is Itchen off your patch?

Not at all. Itchen is within our area. We work across Greater London and the South East. Good photos up front let us bring everything on the first visit.

What hours do you work?

The office is staffed Monday to Friday, from 8am until 5pm. Let us know your site hours and access windows, and the work will be planned around them.

Will your applicators have CSCS cards?

Yes. Should the site need card details in advance, let us know and we’ll send them with the quote.

Do you seal on top of existing sealant?

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

Do you have public liability insurance?

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

Do you work on hotel and retail fit-outs?

Yes. We work with shop fitters, hotel groups and office fit-out contractors. Our area takes in Greater London, the South East and Scotland.

Maintenance after handover

A few simple habits keep the new joints working:

  • Keep the same sealant colour across a brand
  • Agree the sealant colour early and write it into the specification
  • Check a trial length in real light
  • Note which sealant colour was used where

Give the sealant its full cure time before cleaning or handling the area. Coloured sealant marks more visibly than white while it is fresh, so brief cleaners and other trades.

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

What we can’t put right

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

  • Colour variation across natural stone or brick that no single shade can match
  • Paintable products in joints they aren’t suited to
  • A colour that never alters with age

If you’re not sure, just phone 01277 525 020 or send details through our quote form and we’ll give you a straight answer before you book.

What we seal

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

Work for main contractors and building owners

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

Whether you’re 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.

Working on commercial sites near Itchen

Itchen sits close to the coast, within about 1 mile. Shopfronts, frames and external joints on commercial buildings there take wind-driven rain and, closer to the shore, salt in the air. Sea-facing elevations are typically where failed joints show first. A 2-mile radius around Itchen takes in plenty of hotels. Hotel refurbishments are where a matched sealant colour earns its place: bathroom, bar and reception joints have to sit with the finishes; work is planned so the hotel keeps trading.

Industrial estates such as Central Trading Estate, 0.9 miles west of Itchen, have offices, trade counters and welfare areas whose sealant ages like any other building’s. Sites a few miles apart, such as Central Trading Estate and Basepoint Business Centre, can share one programme and one point of contact. For a hotel such as Marsh Hotel (0.9 miles west of Itchen), the colour of a joint at the bar or the bath matters to the look of the room.

Itchen is about 2 miles south-east of Southampton, in Southampton. We send applicators to Itchen for colour-matched joints, handled exactly as we handle every other area. Itchen is one of 30 places in Southampton on our list.

Commercial sites across SO19 and SO14 are covered. If your site is on Sea Road, Oak Road and West Road or close by, send details and we will quote for colour-matched joints. Access to Itchen is via the A3025, so getting applicators and materials to site is simple. Close to Itchen, our area also takes in Peartree Green (1 mile north-west), Northam (1 mile north-west), Sholing (1 mile east), Bitterne (1 mile north-east) and St Mary's (1 mile west). Further afield, our area takes in Shirley (3 miles north-west), Regents Park (3 miles west), Maybush (4 miles north-west), Coxford (4 miles north-west), Freemantle (3 miles west) and Lordswood (4 miles north-west). Itchen ranks among the main centres of Southampton, with offices, shops, schools and other public and commercial buildings, and we cover them all.

What’s near Itchen

In Itchen, that means premises near Houndwell Park, Woolston School and Oasis Academy Sholing. Itchen has its own railway station: Woolston station. Other landmarks nearby include Bitterne Local History Society Heritage And Research Centre (0.9 miles north) and Marlands Shopping Centre (1.6 miles west). For a walk, there’s Netley Common.

Map of Itchen © OpenStreetMap contributors

Diagnose, treat, sign off

Where the site stays busy, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then reopened once the sealant allows before the next one starts. If neighbouring businesses or buildings around Itchen need work too, visits can be combined. Tell us your site hours and we will plan around them.

  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. Where colour is critical, a sample bead can be agreed in a discreet spot.
  4. We take out the existing bead, clean the joints and fit backing.
  5. We apply the agreed colour and tool it neatly, with masking where the finish needs it.

Before we start on site

  • Send your site hours and access windows
  • Agree which areas must stay open
  • Clear stock, furniture or equipment away from the joints

Get a fixed quote

For a fixed quote, call 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. You can also send details through our quote form.

Ask for a quote

Advice

What the job involves on each surface

Natural stone

Natural stone rarely has one colour, and the sealant has to work with that. A stone-safe neutral-cure product is used in the closest available colour.

Powder-coated and anodised frames

Anodised and metallic frames rarely have an identical sealant colour. We will suggest the nearest standard colours for approval.

Accreditations

Trusted. Accredited. Insured.