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

Sealant specialists in Dukes Green

We carry out sealant work for offices, shops, hotels and other commercial buildings in Dukes Green. Send details for a fixed quote.

  • Movement joints packed with grit and debris
  • Water staining near frames, panels or ceilings
  • Messy, uneven beads from earlier work that let the building down
1
Send details
Photos, drawings or a schedule, or we visit.
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.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Commercial sealant contractors near Dukes Green

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

Looking after the joints

To get the most from the new sealant:

  • Respect the cure time before reopening an area
  • Check the asbestos register before anyone disturbs old sealant in an older building
  • Check joints after other trades have worked nearby
  • Log reseals in the O&M or maintenance records

We stand behind the workmanship with a 12-month guarantee. File the handover note with the building records.

Tenants and staff spot black or split sealant quickly. Planned replacement saves fielding the same complaint again and again.

Commercial sealant contractors for commercial buildings in Dukes Green

A reseal stands or falls on the preparation underneath it. Old silicone gives new sealant nothing to grip, so every trace of it is removed. Primer is used wherever the manufacturer calls for it on that surface. Site teams most often ask us about untidy joints in a reception, shop floor or lobby and black mould through washroom sealant that won’t clean off, across floor and threshold joints, window and door perimeters and external facade joints. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Dukes Green is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

The most common commercial job in Dukes Green is resealing joints that have simply reached the end of their life: split, chalky or peeling, with leaks or mould starting behind it.

Business units in the countryside around places like Dukes Green are often converted barns, stables or farmyards. Old masonry beside new aluminium, timber and plasterboard gives plenty of joints between materials that move differently.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.

Where
Dukes Green (BN26)
Region
East Sussex
Cover
A 12-month guarantee
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

What sets the cost

Your fixed quote is built from the real scope. It takes account of:

  • Working within restricted access windows
  • Specialist products, such as fire-rated or hygienic sealants
  • Quantities, in metres or numbers
  • How accessible the joints are

Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

What we need to price the job

Good information means a firmer quote. When you get in touch, include:

  • Whether the building will be occupied during the work
  • Clear photos of the problem areas
  • The product your specification calls for
  • Where the site is, with the postcode

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. If you have questions first, speak to us on 01277 525 020 or email a schedule or drawings.

When something else is needed

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Leaks from pipework, wastes or valves (that’s plumbing)
  • Faulty windows rather than failed perimeter sealant
  • Structural cracks or movement the joints weren’t designed for

If in doubt, call 01277 525 020 or email a schedule or drawings and we will say what we think before you book.

Surfaces we seal

  • Window and door perimeters
  • External facade joints
  • Floor and threshold joints
  • Kitchen worktops and splashbacks
  • Washrooms and tea points
  • Movement joints in walls and floors

Should maintenance staff do it?

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.

From enquiry to sign-off

We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. For work around Dukes Green, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.

  1. We start with the evidence: photos, drawings or a look on site.
  2. A fixed quote follows, with removal and preparation included.
  3. Sequence, access and working times are settled before the first joint is touched.
  4. The failed sealant comes out and the faces are prepared, with primer where required.
  5. Backing goes in, the new sealant is laid and tooled, and the area is left neat.
  6. Completed areas are signed off with you under our 12-month guarantee.

Getting the site ready

  • Send your site hours and access windows
  • Agree which areas must stay open
  • Have the specification and drawings to hand

Quotes

To get a fixed quote, ring 01277 525 020 or send details through our quote form with the site address and an outline of the work. Our quote form is another easy route.

Get a quick quote

Read more

What Dukes Green’s businesses ask us to seal

Dukes Green lies within about 3 miles of the sea. Shopfronts, frames and external joints on commercial buildings there take wind-driven rain and, closer to the shore, salt in the air. A matched colour is only half the brief on an exposed frontage. Less than 3 miles from Dukes Green there are two named estates and business parks. Sites like these see regular refits, with shopfronts, offices and staff areas to seal, often in a colour the occupier specifies.

For a hotel such as Dean's Place Hotel, less than half a mile north of Dukes Green, the colour of a joint at the bar or the bath matters to the look of the room. A business with units at Berwick Court Farm Business Park and Cradle Hill Industrial Estate needn’t use two contractors for its sealant.

Dukes Green is about 3 miles north-east of Seaford, in East Sussex. We send applicators to Dukes Green for sealant joints. 308 places across East Sussex fall within our area, including Dukes Green. Brighton is covered too, some 13 miles away.

Anyone looking for commercial sealant contractors in BN26 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Just outside Dukes Green, we also work in Lullington (1 mile north-east), Alfriston (1 mile north), Winton (1 mile north), Milton Street (1 mile north-east) and Alciston (2 miles north). Bigger towns within reach include Eastbourne (6 miles east), Bexhill-on-Sea (14 miles east), Seaford (3 miles south-west), Lewes (8 miles north-west), Hailsham (6 miles north-east) and Uckfield (12 miles north).

Near you in Dukes Green

We work on buildings around Dean's Place Hotel and the streets around them. For rail, the closest station is Berwick (Sussex) station, about 2.8 miles north. Nearby you will also find Chailey Heritage Marine Hospital (3.8 miles west) and Arlington Castle (1.2 miles north-east). The countryside around Dukes Green includes Firle Beacon.

Map of Dukes Green © OpenStreetMap contributors

FAQs: Dukes Green

Is a smaller place like Dukes Green outside your area?

No. Places such as Dukes Green are covered as much as the big towns. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

Do you cover business parks and estates near Dukes Green, such as Berwick Court Farm Business Park?

Yes. We cover Dukes Green and the area around it, including industrial estates, business parks and retail parks such as Berwick Court Farm Business Park. To start, just speak to us on 01277 525 020 or send details through our quote form with the unit, the joints involved and your access times.

What guarantee do you give on resealing?

It’s backed by our 12-month guarantee. Should a joint we sealed give trouble during those 12 months, let us know and we will look at it.

Is it fine to apply new sealant on top of old?

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.

How many days will you need on site?

We plan the time on site around your programme and access. You will have an expected duration with the quote.

Can you take on work for an FM or managing agent?

Yes. We quote, schedule and report back in the way that suits your process.

How do you choose the sealant?

If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

When to call us in Dukes Green

External sealant takes a steady beating from the weather. Sunny elevations dry the surface out and exposed ones take driving rain. Once it stiffens, the joint opens up at the next big temperature swing.

Clients typically get in touch after noticing one or more of the following:

  • Messy, uneven beads from earlier work that let the building down
  • Mouldy silicone around WCs, urinals and vanity tops
  • Weathered facade sealant that no longer flexes
  • Frame mastic that has hardened and come away from the wall

For premises near Berwick (Sussex) station, which lies north of Dukes Green, footfall is part of the plan: work is phased so shops and offices keep trading.

Questions to ask before you book

  • What site paperwork they can supply
  • The terms of the workmanship guarantee
  • Proof of insurance
  • Will CSCS-carded applicators be on site?

Questions to ask before you appoint anyone

Accreditations

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