
Lions Green construction mastic
Sealant work in Lions Green for main contractors, managing agents and facilities managers: mastic packages for new-build and refurbishment projects, quoted at a fixed price.
- Bath and shower joints scraped during the final clean
- Oversized or tapered gaps around new frames
- Mastic snags holding up handover
Construction mastic across Lions Green
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How the job changes by surface
Bathrooms, en suites and washrooms
In bathrooms and washrooms, an anti-mould sanitary silicone goes around every fitting. Each joint is prepared, sealed and finished with a neat tooled line.
Fire-rated sealant where specified
Fire-rated sealant forms part of some packages, installed to the product’s tested detail where it is specified. Fire stopping design belongs to the designer and building control and we install what’s specified.
Construction mastic in Lions Green
Most of the packages we price run well beyond frames: external door and window perimeters, internal decorators’ caulk where specified, sanitary joints in bathrooms and washrooms, kitchen worktops and splashbacks, and snagging before handover. One contractor for all of it keeps the responsibility in one place. We work on internal decorators’ caulk, sanitary and kitchen joints and brick and block movement joints, and the failures we’re asked to look at most are sanitary sealant damaged by following trades and new external sealant already peeling away. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Lions Green it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around smaller places like Lions Green, building work usually means conversions of farm buildings, a few new houses or an extension to a hall or school. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.
Work we carry out in East Sussex comes with a 12-month guarantee. Should something we installed fail, phone 01277 525 020 or send details through our quote form and we’ll come back to it.
- Where
- Lions Green (TN21)
- Wider area
- East Sussex
- Cover
- A 12-month guarantee
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026

Maintenance after handover
After handover, these steps help:
- Get the mastic subcontractor involved early in the programme
- Allow flexibility for external sealing in damp or cold weather
- Don’t schedule sealing before decorators and flooring are done
- Keep product details for future maintenance
A new structure shifts as it loses construction moisture. The right product in each joint copes with that while rigid fillers and caulk can crack where movement is larger. We can advise if a joint needs a different product.
One unsealed frame can let water into finished internal areas. That normally means redoing finishes in a completed area, and a delay to handover. A check of every frame before decorators start is worth the time.
Our process
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. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Smaller jobs around Lions Green can be grouped with others nearby. A fixed quote is given before anything starts.
- Drawings, the sealant specification and your programme come to us for pricing.
- You receive a fixed quote listing scope, products and phasing.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed 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.
- We close out snagging and hand over with a 12-month guarantee.
What we need from you
- Point out parking and an unloading spot
- Warn occupants and staff about the work
- Make sure the joints can be reached
Quotes
For a fixed quote, ring 01277 525 020 or email the details over, telling us the site location and the nature of the job. Our quote form is another easy route.
Read more
Doing it in-house
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Questions about Lions Green
Can you work at a site such as Merrydown Business Park, by Lions Green?
Yes, sites like Merrydown Business Park are within our area, along with the rest of Lions Green. To start, just ring 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.
Is a hospital such as Hellingly Hospital Railway somewhere you can work?
Yes, hospitals are one of the sectors we cover. We follow the site’s permits, sign-in and infection-control procedures in every area.
Will you come and look before quoting?
It depends on the job. Straightforward work can often be priced from photographs and measurements, and bigger or more complex jobs usually get a visit.
Can you fit around our programme?
We seal plot by plot or floor by floor as areas are released. The sequence is settled with your site team.
Do you take on mastic snagging only?
Yes, we can. Send the snag list or photos and we will price it.
How do you choose the sealant?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
How long does a job like this take?
The duration is planned around your programme and the access we’re given. You’ll have an expected duration with the quote.
Building owners, agents and FMs in Lions Green
CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
Whether you are 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.
Towns and villages near Lions Green
What else we do in Lions Green
When to call us in Lions Green
Wide, tapered or inconsistent gaps around frames are a common problem. Every product has limits on how wide a joint it can bridge and gaps beyond it need packing or adjusting by the frame installer. We flag them early rather than filling them with sealant that won’t last.
Site and facilities staff are often the first to spot these:
- Old sealant on a refurbishment that needs stripping before new work
- Sealant knocked or painted over by other trades
- Snag items on joints that need redoing before handover
- A mastic package split between trades with no clear owner
On a healthcare site such as Hellingly Hospital Railway, which lies south-east of Lions Green, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.
Questions to ask before you book
- The terms of the workmanship guarantee
- Their public liability cover
- Their pre-qualification and accreditations
- Will failed sealant be removed rather than covered?
Contractors’ notes for Lions Green
Lions Green is about 41 miles from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, so mastic packages have to keep pace with busy programmes. Lions Green is in the South East, one of the UK’s drier regions. Winter mornings still bring frost and condensation on frames and panels, which is why external dates are agreed with the site manager.
With historic properties like Horselunges Manor (4 miles south of Lions Green) in the area, refurbishment work often meets old masonry that needs compatible sealants. New units and refits on sites such as Merrydown Business Park, 1.2 miles to the south-east of Lions Green, need their panel and perimeter joints sealed to the specification.
Lions Green is about 5 miles east of Uckfield, in East Sussex. Commercial clients in Lions Green can call on us for mastic packages. Lions Green is one of 308 places in East Sussex on our list for mastic packages. Our Brighton page has more on work in that area, about 17 miles away.
We cover the TN21 postcode districts. Nearby places we also cover include Waldron (1 mile north-west), Burlow (1 mile south-east), Horam (1 mile south-east), Maynard's Green (2 miles east) and Roser's Cross (2 miles north). A short drive away, we cover Eastbourne (11 miles south), Bexhill-on-Sea (13 miles south-east), Seaford (12 miles south), Lewes (10 miles south-west), Hailsham (6 miles south) and Crowborough (8 miles north).
Around Lions Green
Around Lions Green, our work takes us to commercial buildings near The Star Inn, among other places. Nearby you’ll also find Tickerage Castle (3.6 miles north-west) and Sussex Farm Museum (1.2 miles east). Open spaces near Lions Green include Selwyns Wood.