Kent · England

New Build Mastic in Hernhill

Plot mastic for developers and snagging failed sealant in new homes for Hernhill, backed by a 12-month guarantee. Call for a quick quote.

  • Cracked sealant around new window and door frames
  • Cracked caulk along new skirting
  • Plot mastic for developers ahead of handover

Trusted new build mastic in Hernhill

Why deal with it now?

Resealing everything on a snagging list in one visit is normally simpler than chasing joints one at a time. You get one visit and one clear quote. Where a wall is exposed, as many are in small places like Hernhill, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

Why us?

  • We agree the colour with you first
  • An ARBOMaster approved applicator
  • Tidy, careful work
  • Sanitary silicone with an anti-fungal additive in wet areas

See what affects the cost and our reviews.

New build mastic in Hernhill

Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. While the builder’s snagging or warranty period runs, report it to them first, and if it isn’t put right, get in touch with us. We’re often asked to deal with gaps between new skirting and floors and plot mastic for developers ahead of handover, on windows & doors, plot handovers and bathrooms & en suites.

In a village or hamlet like Hernhill, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.

There’s a 12-month guarantee on every job, large or small.

Place
Hernhill (ME13)
Region
Kent
Cover
12 months on all our work
Quotes
A clear price before we start
Telephone
0345 464 0079
Updated
26 October 2026
Applicator in a navy top running a bead of silicone up a shower screen wall profile

What happens on the day

The work is kept neat and contained to the joints we’re treating, so you can get on with your day. The job generally takes a few hours for most snagging lists, longer for a run of plots, and we explain the cure time before we leave. For a village or hamlet like Hernhill, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. We go through the snagging list or plot schedule and agree the joints to do.
  2. We cut out every bit of the failed or messy sealant.
  3. We clean off dust from the build and prime the surfaces where the product needs it.
  4. New sealant suited to each joint is applied and tooled neatly.
  5. Each area is checked and left with its cure time.

Preparing for the visit

  • Mention any leaks or damp you’ve noticed
  • Mention any tricky access
  • Where the joints are inside, avoid wetting them before we arrive

Getting a quote

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

Get a quick quote

Related advice

New build mastic in Hernhill: local notes

Hernhill is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so any gaps are best picked up early. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

For new homes near Selling station, it’s worth checking the sealant early, while snags are still fresh.

Hernhill is about 3 miles east of Faversham, in Kent. Wherever you are in the ME13 postcode area, our applicators can take on new build mastic. Our Kent coverage runs to 922 places, and Hernhill is one of them. Chelmsford is on our list too, around 36 miles away.

Work in ME13 is quoted and booked the same way as anywhere else. Close by, we work in Slutshole (1 mile south-west), Staplestreet (1 mile south-west), Dargate (1 mile north-east), Culmers (1 mile north-west) and Goodnestone (1 mile north-west). Further out, we also cover Ashford (12 miles south), Canterbury (6 miles east), Sittingbourne (10 miles west), Whitstable (4 miles north-east), Faversham (3 miles west) and Herne Bay (8 miles north-east).

Near you in Hernhill

We work in homes and buildings around Red Lion pub and Mount Ephraim Gardens, among other places. For rail, the closest station is Selling station, about 2.3 miles south-west of the centre. Well-known places in the area include Chilham Castle (4.5 miles south) and Whitstable and Tankerton Hospital (5.3 miles north-east). For a walk, there’s Blean Woods RSPB Reserve.

Map of Hernhill © OpenStreetMap contributors

Keeping the joints in good condition

A little care helps the new joints last. Our advice:

  • Clean sealant with mild detergent, not abrasives
  • Raise failed sealant with the developer while you are covered
  • Check bath and shower seals every few months as the house settles
  • Open a window or run the fan after bathing

Keep pictures of the joints and any snagging correspondence with your builder. It’s useful if you need to raise other issues later.

Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small and the new finishes intact.

Hernhill questions

Is Hernhill within the area you cover?

Yes, Hernhill is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

Can you do new build mastic in Hernhill?

Yes. We work across London and the South East, and Hernhill is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear quote.

Can you match the sealant colour to my new kitchen or bathroom?

White and clear are the most common, but other colours are available. We choose one to suit the room before we begin.

Is it worth trying it myself?

It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

Do you work for letting agents?

Yes. We work in homes, commercial premises and hotels.

What do you put in the joint?

We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.

When is the sealant fully cured?

Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.

Are you insured?

Yes. We are fully insured.

What the job involves on each surface

Bathrooms and en suites

New-build bathrooms and en suites are where sealant fails most often. The old sealant comes out and anti-fungal sanitary silicone goes in after cleaning and priming.

Show homes

In a show home, the sealant is on display. We lay neat, even beads in colours to suit the finishes.

What we are called out for in Hernhill

Not every new-build joint gets the right sealant: caulk where water collects, or a rigid product on a moving joint. Neither lasts long.

Signs it’s time to call us include:

  • Cracked caulk along new skirting
  • Cracks appearing as a new home settles
  • Plot mastic for developers ahead of handover
  • Shower seals failing in the first year or two

Around Hernhill, as everywhere, new build mastic is only as good as the preparation behind it.

Comparing quotes

  • How long to leave it before use
  • How much experience the applicator has
  • What guarantee comes with the work
  • Is the old sealant removed completely?

Choosing a sealant specialist

Landlords, agents and businesses in Hernhill

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

When something else is needed

In fairness, some problems need a different trade:

  • Deciding who is responsible under a builder’s warranty
  • Damaged fittings that need replacing
  • Movement caused by a poorly fitted tray or bath

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.

Joints and surfaces we work on

  • Plot handovers
  • Windows & doors
  • Bathrooms & en suites
  • Kitchens
  • Show homes
  • Skirting & floors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job