East Sussex · England

New-build mastic & snagging in Lions Green, East Sussex

Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Lions Green and across East Sussex. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Joints pulling apart as timber shrinks
  • Sealant that never bonded to the surface
  • Worktop and upstand sealant coming away

New build mastic in Lions Green

New build mastic for homes and businesses in Lions Green

Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. Both get the same care over preparation. We’re often asked to deal with internal frame sealant that has split and gaps opening as the house dries out and settles, on plot handovers, skirting & floors and show homes.

For a small place like Lions Green, the journey and access are planned in advance, and the work itself is the same as on any site.

The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.

Silicone being applied where a shower enclosure meets beige wall tiles
Place
Lions Green (TN21)
Wider area
East Sussex
Guarantee
One year on every job
Quote
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026

What new build mastic looks like in Lions Green

London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

Around Lions Green, as everywhere, new build mastic is only as good as the preparation behind it. For jobs in and around Lions Green, choosing the right material for each joint is as important as a tidy finish.

Lions Green is about 5 miles east of Uckfield, in East Sussex. Wherever you are in the TN21 postcode area, we cover new build mastic for homes and businesses. Lions Green is one of 289 places in East Sussex we cover for new build mastic. You can also see our page for Brighton, roughly 17 miles from Lions Green.

Jobs for new build mastic in TN21 is quoted and booked the same way as anywhere else. We also cover the places around Lions Green: 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). Larger places within reach include 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).

Local landmarks in Lions Green

Around Lions Green, our work takes us to homes and buildings near The Star Inn, among other places. Well-known places in the area include Tickerage Castle (3.6 miles north-west) and Sussex Farm Museum (1.2 miles east). For a walk, there’s Selwyns Wood.

Map of Lions Green © OpenStreetMap contributors

What the job involves on each surface

Windows and doors

External mastic around new windows and doors is sometimes rushed or missed. We reseal it with a weatherproof, flexible sealant.

Bathrooms and en suites

Trays and baths in new builds settle as they’re used. The joint is stripped back before the new bead goes in with baths filled first.

Landlord and commercial work in Lions Green

Letting agents and landlords in Lions Green can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.

What happens if it’s left?

It often makes sense to do all the sealant items on a snagging list together. You get one visit and one clear quote to plan around. Older cottages and farmhouses around Lions Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

Doing several joints on one visit is normally more efficient than separate visits. You’ll get one clear quote for the whole job.

Why us?

  • Fully insured
  • Quality sealants from Arbo and Everbuild
  • 12-month guarantee on every job
  • Over 20 years’ experience

Read what affects the cost or customer reviews.

When it isn’t the sealant

Sealant is not the answer to every problem, and we’d rather say so up front. It won’t solve:

  • Plumbing faults behind the sealant
  • A tray or bath that is not properly supported, until it’s fixed
  • Structural cracks in walls or ceilings

If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.

Surfaces we seal

  • Bathrooms & en suites
  • Kitchens
  • Skirting & floors
  • Windows & doors
  • Show homes
  • Plot handovers

Looking after it afterwards

Good habits help new joints last longer. Our tips:

  • Record problems with dated pictures
  • Keep water off fresh sealant until it has cured
  • Open a window or run the fan after bathing
  • Check bath and shower seals every few months as the house settles

Do not stand on the bath edge or the lip of the tray in the first few weeks. If a bath or tray moves when you stand in it, get it looked at.

The sooner you deal with untidy or cracking sealant, the less there is to put right. Left alone, a small crack can become a leak.

Quotes for new build mastic in Lions Green

The quote reflects the job in front of us. We look at:

  • Whether there’s mould to deal with
  • Which sealant suits the joint
  • Working hours on commercial sites
  • The size of the job

A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.

What to tell us for a quote

When you contact us, these details help:

  • The type of property
  • Roughly how big the job is
  • Photos by email, if that’s easy
  • What the problem is, such as mould, gaps, leaks or cracking

Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job.

Common questions in Lions Green

Is Lions Green in your area for new build mastic?

Yes, Lions Green is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.

Is there a guarantee on new build mastic in Lions Green?

Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.

Do you work for hotels and businesses?

Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.

Do the sealants smell?

That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.

Can tenants book the work?

Yes. Check with your landlord; we can send the quote to them too.

Do you work for landlords and businesses?

Yes. We work for householders, landlords, letting agents, businesses and hotels in Lions Green.

Will the old sealant be removed?

Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.

How much does new build mastic cost in Lions Green?

Size, access and the old material all affect the cost. Call for a quick quote.

How the visit works

All our tools and materials come with us in the van. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours for most snagging lists, longer for a run of plots. For a village or hamlet like Lions Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. First, the list of joints is agreed from your snagging sheet or plot schedule.
  2. Every bit of the old builder’s sealant is cut out.
  3. We clean out the dust and grit left from the build.
  4. Primer goes on where the surface and product need it, then the new sealant.
  5. We tool every joint neatly and tell you when each area can be used.

Getting ready for the visit

  • Tell us about any water getting in
  • For indoor joints, keep the area dry beforehand if you can
  • Mention any parking rules near the property

Get a quote

Need a quote? Please call 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before work begins.

Get a price

Related advice

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job