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

Coloured Sealant contractors in Lewes

Planning work on a colour-matched joint in Lewes? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Old colour-matched joints lifting at the edges
  • Dirty, discoloured joints in public areas
  • Shop fits that need consistent sealant colours across sites
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
Fully insured: £5m PL

Coloured sealant for Lewes sites

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Leave it or put it right?

Leaving a failed coloured joint risks more than appearance. Behind the bead, moisture can damage substrates and finishes, so resealing protects the finishes as well as the look. In Lewes, as anywhere, the simplest time to fix a failed joint is before it leaks. After a leak, there’s drying, repairs and redecoration on top.

Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we’ll explain how it’s made up.

Why appoint us

  • A Constructionline member, so easy to vet
  • Over 20 years of commercial sealing
  • Failed material removed, not covered up
  • Fully insured

Take a look at what affects the cost or how we’re accredited.

Coloured sealant in Lewes

Colour is often written into the specification, by RAL reference or by matching a sample. Standard sealant ranges cover many colours, so we check what the specified product is made in at quote stage. We don’t promise an exact custom match, but we’ll show you the closest options. The enquiries we see most involve marked sealant in hotel bathrooms and discoloured joints on a visible elevation, across natural stone and brick, shop-fit joinery and counters and powder-coated and anodised frames. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Lewes, preparation and product choice get the time they need.

Smaller commercial landlords and businesses in a town like Lewes often have a handful of sealant jobs that can go on one visit: a frontage, a staff washroom, a kitchen and a few window perimeters, for instance. One fixed quote then covers the lot.

Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

Place
Lewes (BN7, BN8, BN6, RH15)
Wider area
East Sussex
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

When to bring in a 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.

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

When something else is needed

A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is any of the following:

  • Custom-mixed sealant colours
  • Restoring stained stone or masonry next to old sealant
  • Preventing all fading from sunlight and weathering

If you are not sure, just phone 01277 525 020 or use the quote form and we’ll give you a straight answer.

Surfaces we seal

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

Maintenance after handover

Keep the joints in good shape with a few simple steps:

  • Note which sealant colour was used where
  • Keep the same sealant colour across a brand
  • Check a trial length in real light
  • Keep harsh solvents away from visible joints

Let the joints cure as the manufacturer advises before they’re cleaned. Coloured sealant marks more visibly than white while it is fresh.

Share the colour reference with anyone working on the finishes. It stops mismatched repairs creeping in.

Your questions answered

Does your area include sites such as Riverside Industrial Estate, near Lewes?

Yes. Estates, retail parks and business parks around Lewes, Riverside Industrial Estate among them, are all within reach. Photos and a short description are enough for a first look.

Will our hotel in Lewes need to close for the work?

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

Can you send site paperwork?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

What happens if old sealant might contain asbestos?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.

Do you have public liability insurance?

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

Do you hold CHAS accreditation?

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

Is any job too small?

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

Shops, offices and hotels in and around Lewes

Less than 3 miles from Lewes there are at least three named estates and business parks. Tenant changes on such sites bring fit-outs, and fit-outs bring new joints, often in a colour the occupier specifies. Lewes lies roughly 43 miles out from central London. Business parks and retail centres are common around the capital’s motorway corridors. Multi-site occupiers here often want one sealant contractor across all their buildings.

Refits at hotels like Shelley's Hotel, under half a mile to the south of Lewes, bring joints at vanity tops, bars and reception desks that guests see every day. Occupiers with premises at both Riverside Industrial Estate and Phoenix Industrial Estate could have the sealant at each handled under one quote.

Lewes is about 7 miles north-east of Brighton, in East Sussex. We cover commercial sites throughout Lewes, for single jobs and planned programmes alike. Lewes is one of 308 places we cover in East Sussex. We also cover Brighton, some 7 miles away.

Anyone looking for coloured sealant in BN7, BN8, BN6 and RH15 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Streets here include Market Lane, Market Street and High Street. You will find Lewes on or near the A26 and A275, so getting applicators and materials to site is simple. If your building is just outside Lewes, we cover South Malling (1 mile north-east), Southover (1 mile south-east), Cliffe (1 mile east), Offham (1 mile north-west) and Hamsey (1 mile north). Bigger towns within reach include Eastbourne (14 miles south-east), Seaford (8 miles south-east), Hailsham (11 miles east), Crowborough (14 miles north-east), Uckfield (8 miles north-east) and Newhaven (6 miles south). Among the larger centres in East Sussex is Lewes, and its commercial and public buildings are all within our area.

Landmarks near Lewes

Locally, jobs take us to sites close to Priory School, St Pancras Catholic Primary School and Railway Land, among other places. For rail, the closest station is Lewes station, roughly 0.6 miles south-east of the centre. Other landmarks nearby include Lewes Victoria Hospital (0.5 miles west) and Museum of Agricultural Bygones (3.9 miles east). The countryside around Lewes includes Offham Hill and Malling Down.

Map of Lewes © OpenStreetMap contributors

How a job runs

At the end of each section, we remove the tape, clean down and inspect every joint. Where the sealant needs time to cure before use, we tell you and sign the area. In a town such as Lewes, most jobs are single buildings. Your photos, drawings or a site visit come first, followed by a fixed quote.

  1. First we agree which sealant type the joint needs.
  2. We compare the target colour with the colours available.
  3. You approve the colour, on site if it’s critical.
  4. The existing bead comes out, then faces are cleaned and backed.
  5. Edges are masked and the coloured sealant applied and tooled.
  6. Masking comes off and the work is checked with you.

Preparing the site

  • Let us know about inductions and permits
  • Send your site hours and access windows
  • Send any specification or drawings in advance

Request a quote

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, give us a call on 01277 525 020 or email drawings and photos.

Ask for a quote

Read more

Common problems we fix in Lewes

Failed sealant still has to be dealt with, whatever its colour: it can crack, peel or harden with age and movement. The fix is a full cut-out and a new bead in the right colour.

Typical triggers for a call:

  • Joints that need to match a new RAL frame colour
  • Fit-outs with a sealant colour in the specification
  • Smeared sealant on stone or joinery
  • Old sealant that has yellowed, darkened or faded

Offices and shops close to stations such as Lewes station, 0.6 miles to the south-east of Lewes, tend to be busy all day, so sealant work is planned around opening hours.

What your quote should include

  • Whether primer will be used where the manufacturer specifies it
  • The terms of the workmanship guarantee
  • Will failed sealant be removed rather than covered?
  • Will CSCS-carded applicators be on site?

Our contractor checklist

Accreditations

Trusted. Accredited. Insured.