
Mastic contractors in Eastergate
Mastic packages for new-build and refurbishment projects in Eastergate and across West Sussex. CHAS accredited and fully insured, with a 12-month guarantee.
- Perimeter gaps outside the sealant’s range
- Frame perimeters left unsealed or poorly sealed
- Failed sealant in an existing building being refurbished
Construction mastic near Eastergate
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our construction mastic in Eastergate
External mastic depends on the weather in a way most internal trades don’t. Cold or damp mornings, frost and condensation on frames can all hold external sealing up, so we plan elevations with the forecast and the programme in mind. Internal areas can typically carry on while the outside waits. We work on floor and skirting junctions, brick and block movement joints and cladding and panel joints, and the usual reasons a site gets in touch are a mastic package split between trades with no clear owner and early adhesion failures on new external joints. Whether you call it commercial sealant work, mastic application or joint sealing, in Eastergate it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Construction in and around smaller places such as Eastergate is often barn conversions, small groups of houses or extensions to halls and schools. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.

- Where
- Eastergate (PO20)
- Region
- West Sussex
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
How a job runs
Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then handed back before the next one starts. Smaller jobs around Eastergate can be grouped with others nearby. A fixed quote is given before anything starts.
- We price from the drawings, specification and programme you send.
- You receive a fixed quote listing scope, products and phasing.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Work follows the programme, area by area, as rooms and elevations become ready.
- Every joint is prepared, set to depth and sealed with the specified product.
- Snags are cleared before handover and completed areas carry our 12-month guarantee.
Preparing the site
- Flag any permit to work we will need
- Explain the parking and delivery arrangements
- Agree which areas must stay open
Quotes
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 email us to discuss it first.
Related advice
What sealant work can’t fix
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:
- Damage to finishes by other trades after we have sealed
- Specifying the product where the designer hasn’t
- Faulty frames rather than failed sealant
If in doubt, speak to us on 01277 525 020 or use the quote form and we’ll say what we think.
Where we work in Eastergate
- Sanitary and kitchen joints
- Internal decorators’ caulk
- Floor and skirting junctions
- Brick and block movement joints
- Window and door perimeters
- Cladding and panel joints
Questions about Eastergate
Is Sussex Business Village, near Eastergate, within your area?
Yes. We cover Eastergate and the area around it, including industrial estates, business parks and retail parks such as Sussex Business Village. Photos and a short description are enough for a first look.
Can you take on a job at a hospital such as Bognor Regis War Memorial Hospital?
Yes, provided the work is planned with the site’s estates team. Each area is agreed with the ward or department and the estates team in advance.
Are you CHAS accredited?
CHAS and Constructionline are both in place, and each applicator is CSCS-carded. Public liability insurance is in place.
What does a mastic package normally include?
Inside and out: frame perimeters, movement joints, caulk where called for, sanitary and kitchens.
When can the area be used after sealing?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.
Is colour matching possible?
In many cases, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We’ll confirm the colours available for the specified product.
Do you need to see the site first?
It depends on the job. Straightforward work can often be priced from photos and measurements, while larger or less clear jobs get a site visit first.
What sets the cost
Your fixed quote is built from the real scope. It allows for:
- Phasing around occupants
- The site’s rules and procedures
- Joint width, depth and condition
- Which sealant the job calls for
We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote and we’ll price your job on its own details.
Before you send an enquiry
Diagnosis starts before we arrive. Tell us:
- Rough lengths or quantities, or drawings if you have them
- Anything awkward about access or site hours
- Photos of the joints, close up and from further back
- Any dates the work must fit around
Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. For a chat about it beforehand, call the office on 01277 525 020 or email the details over.
After the work
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:
- Get the mastic subcontractor involved early in the programme
- Don’t force external sealing on a damp or frosty day
- Brief the final clean team to avoid blades near sealant
- Bring the mastic contractor in after the last trades are through
Any damage after we’ve finished should go on the snag list right away. We can return to clear snags before handover.
In wet areas, a weak sanitary joint shows up quickly once the building is occupied. Leaks behind showers and basins damage finishes and floors, and the repair falls into the defects period. Getting the product and preparation right first time avoids that.
Also near Eastergate
Also in Eastergate
When to call us in Eastergate
Dust is the enemy of adhesion on a construction site. Plaster dust, release agents, protective film residue and damp all stop sealant bonding, so preparation matters as much here as on a reseal.
Common reasons buildings call us in:
- Existing joints on a refurb that need cutting out and resealing
- Window and door perimeters that won’t pass inspection
- Frame gaps too wide for sealant alone
- Early adhesion failures on new external joints
For contractors refurbishing units at places like Sussex Business Village, which lies east of Eastergate, the mastic covers cladding panels, roller-door and window perimeters.
Before you book anyone
- The named product and why it was chosen
- Their approach to joint depth and backing
- Their public liability cover
- Will failed sealant be removed rather than covered?
Building owners, agents and FMs in Eastergate
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Eastergate can sit alongside others in a wider programme.
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
Sites and facades in and around Eastergate
The South East is one of the drier parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, which is why external dates are agreed with the site manager. Central London is about 52 miles from Eastergate. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and each scheme needs its mastic sealed to programme.
Building work at universities like University of Chichester (to the south-west of Eastergate) is often timed for the summer, mastic included. For contractors at a school such as Eastergate CofE Primary School, sealing has to be finished before term starts.
Eastergate is about 4 miles north of Bognor Regis, in West Sussex. Businesses, contractors and managing agents in Eastergate use us for work on mastic packages, as part of our coverage of West Sussex. Eastergate is one of 373 places we cover in West Sussex for mastic packages. We also cover Portsmouth, some 19 miles away.
If you need construction mastic in PO20, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on St Georges Walk, Highview Road and Critchmere Drive and the roads nearby. We also cover Westergate (1 mile west), Nyton (1 mile west), West Barnham (1 mile south-east), Fontwell (1 mile north) and Barnham (1 mile south-east). A short drive away, we cover Worthing (11 miles east), Bognor Regis (4 miles south), Chichester (5 miles west), Selsey (9 miles south-west), Littlehampton (6 miles east) and Lancing (15 miles east).
What’s near Eastergate
Around Eastergate, our work takes us to commercial buildings near Ormiston Six Villages Academy. The closest station to Eastergate is Barnham station, roughly 1 mile south-east of the centre. A little further out are Bognor Regis War Memorial Hospital (3.4 miles south) and Tote Copse Castle (1.5 miles west). For a walk, there’s WWT Arundel.