Mastic sealing for building owners and managing agents in Dukes Green, East Sussex
Mastic sealing for building owners, managing agents and housing associations in Dukes Green. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Damp patches beside frames
- Draughts at frames across a block
- A mix of products and colours from past repairs
Need mastic sealing in Dukes Green?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Mastic sealing in Dukes Green, done properly
Owners and agents normally inherit a building’s mastic rather than choose it and it slowly wears out: it sits round windows and doors, along external joints and through communal areas. When it hardens, splits or pulls away, water and draughts follow, and occupiers start reporting it. If you are dealing with draught complaints from residents or tenants and a mix of products and colours from past repairs, we can help. A specialist sealant contractor works differently from a general builder: in Dukes Green, that means joint design, primers and backing rod as standard.
For owners with a single building near Dukes Green, we plan to finish in one visit where possible. Send photos of the frames and joints and we’ll give a fixed quote.
Work we carry out comes with a 12-month guarantee. If an installation problem shows up, phone 01277 525 020 or email drawings and photos and we will arrange a return visit.
- Place
- Dukes Green (BN26)
- Wider area
- East Sussex
- Cover
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
What happens if it’s left?
Adding sealant to cyclical maintenance is an easy win. Leaving it until there’s a leak turns it into reactive work with less control over timing. Halls, stores and units around places like Dukes Green may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.
Why clients in Dukes Green choose us
- Colours chosen to suit frames, cladding or finishes where possible
- One number for every site we cover
- CHAS accredited
- CSCS-carded applicators
See our cost guide and our accreditations.
Towns and villages near Dukes Green
Other services in Dukes Green
Frames, entrances and external joints in Dukes Green
With the shore within about 3 miles, Dukes Green counts as a coastal location. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first, so it’s worth inspecting those sides more often. The South East is one of the drier parts of the UK. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.
Student accommodation around universities such as University of Brighton (to the west of Dukes Green) is usually managed block by block, which suits a planned mastic programme. For owners of several units at places like Berwick Court Farm Business Park, 1.5 miles to the north of Dukes Green, one programme can deal with frame and external mastic across the lot. For a school such as Alfriston School, perimeter mastic on windows and doors is a holiday job.
Dukes Green is about 3 miles north-east of Seaford, in East Sussex. If you are looking for mastic sealing in Dukes Green, we can help, as we do across East Sussex. Our East Sussex coverage takes in 308 places, large and small. There’s a separate page for Brighton, roughly 13 miles from Dukes Green.
Work on mastic joints is covered throughout BN26, for business premises of every kind. Nearby places we also cover include Lullington (1 mile north-east), Alfriston (1 mile north), Winton (1 mile north), Milton Street (1 mile north-east) and Alciston (2 miles north) for mastic joints. Further afield, our area takes in 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. For rail, the closest station is Berwick (Sussex) station, about 2.8 miles north. Other landmarks nearby include Chailey Heritage Marine Hospital (3.8 miles west) and Arlington Castle (1.2 miles north-east). The countryside around Dukes Green includes Firle Beacon.
Site staff or a sealant specialist?
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
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.
Diagnose, treat, sign off
We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact. Rural sites near Dukes Green may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.
- We inspect the joints, building by building, and record what has failed and why.
- We send a fixed quote that sets out the joints, the products and the programme.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
Preparing the site
- Warn occupants and staff about the work
- Send asbestos survey details if the building is pre-2000
- Point out parking and an unloading spot
Getting a fixed quote
To get a fixed quote, ring 01277 525 020 or email a schedule or drawings. You can also send details through our quote form.
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Your questions answered
Is Dukes Green too small for you to travel to?
No. Places such as Dukes Green are covered as much as the big towns. London and every South East county are within our area. Good photos up front let us bring everything on the first visit.
Can you quote for a block close to Berwick (Sussex) station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Send the address, photographs of the elevations and your access arrangements, and we will give a fixed quote.
Which sealant will you use?
A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Can you take on resealing for a block portfolio?
We do. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords and work can be quoted per building or as a whole.
How long will the new sealant last?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
Do you guarantee the mastic work?
Our workmanship carries a 12-month guarantee, backed by public liability insurance.
Does weather matter for sealant work?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.
How the job changes by surface
Estate-wide resealing programmes
Using the same products throughout keeps the estate consistent.
External movement joints
External movement joints take up expansion and contraction. Failed sealant in a movement joint lets water in.
For managing agents and facilities managers
Whether you’re a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
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 will confirm them with the quote.
Keeping the joints sound
After handover, a little attention goes a long way:
- Mention RAMS, insurance or CSCS requirements up front
- Start inspections with the most exposed faces
- Have the asbestos survey to hand for older buildings
- Make it easy for occupiers to report draughts
Ask residents or tenants to report draughts or leaks round windows early. Early reports catch failures before damage spreads.
The longer failed joints are left, the more likely the substrate edges break up. Then the edges may need repairing first and the job grows.