Kent · England

New-build mastic & snagging in Lenham Forstal, Kent

Plot mastic for developers and snagging failed sealant in new homes for Lenham Forstal, backed by a 12-month guarantee. Ask us for a quote.

  • Cracked caulk along new skirting
  • Cracked sealant around new window and door frames
  • Beads laid onto grit and dust from the build

Book new build mastic in Lenham Forstal

Leave it or put it right?

Running a new bead over the builder’s sealant might look tidy for a few weeks, but it won’t bond to the old layer. A lasting seal starts with removing the old one completely. Around Lenham Forstal, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.

Why us?

  • 12-month guarantee on every job
  • Over 20 years’ experience
  • Sealant colour chosen to suit
  • We never seal over old sealant

See what affects the cost or customer reviews.

New build mastic for homes and businesses in Lenham Forstal

We never seal over a failed new-build bead. Fresh silicone can’t bond to the old layer, so it all comes out before we clean, dry and reseal. We work on windows & doors, plot handovers and skirting & floors, and the jobs we see most are leaking shower tray seals in a new home and sealant that never bonded to the surface.

For a small place like Lenham Forstal, the journey and access are planned in advance, and once on site, the job is the same as anywhere.

Whatever the size of the job, it’s backed by our 12-month guarantee in Lenham Forstal and across Kent.

Close-up of hands using a sealant gun on the joint between a glass shower screen and tiles
Place
Lenham Forstal (ME17)
Wider area
Kent
Cover
One year on every job
Price
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026

What we’re called out for in Lenham Forstal

Once people move in, baths and trays take weight and bed down. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used and the sealant may split.

Look out for these signs:

  • Gaps behind new kitchen upstands
  • Sealant applied over dusty or wet surfaces
  • Shower seals failing in the first year or two
  • Untidy sealant flagged on a snagging list

If you’ve bought a new home near Lenham station, the sealant around baths, showers and frames is worth checking in the first year or two.

What to look for in a quote

  • How long the guarantee is
  • How long to leave it before use
  • Whether VAT is included
  • Whether you can choose the colour

Our hiring checklist

Joints and finishes in Lenham Forstal homes

The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

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

Lenham Forstal is about 8 miles north-west of Ashford, in Kent. Every kind of property in Lenham Forstal is covered for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. We cover 922 towns and villages across Kent, large and small. We also work in Chelmsford, around 37 miles away.

Here we cover the ME17 postcode area for new build mastic. Whether your property is on The Forstal, Mount Castle Lane and Burgess Fields or a nearby road, we can help. Close by, we work in Lenham Heath (1 mile south-east), Charing Heath (1 mile south-east), Stonebridge Green (1 mile south), Leadingcross Green (2 miles north-west) and Lenham (2 miles north-west). We also work in nearby towns such as Maidstone (10 miles west), Ashford (8 miles south-east), Canterbury (15 miles east), Sittingbourne (9 miles north), Faversham (9 miles north-east) and Minster (14 miles north).

Local landmarks in Lenham Forstal

In Lenham Forstal, that means homes and buildings near Kiln Wood. For rail, the closest station is Lenham station, about 1.7 miles north-west. A little further out are Coldbridge Castle (2.3 miles south-west).

Map of Lenham Forstal © OpenStreetMap contributors

Keeping the joints in good condition

Once the sealant has cured, a few habits help it last:

  • Report sealant problems to your builder during the snagging period
  • Get a leaking seal dealt with straight away
  • Keep water off fresh sealant until it has cured
  • Wipe joints with warm soapy water

Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry.

Don’t let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you.

Your questions about new build mastic in Lenham Forstal

Do you cover smaller places like Lenham Forstal?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Can you help a landlord with a rental near Lenham station?

Yes. We work for landlords and agents as well as householders. You can phone 0345 464 0079 or email us with the details for a clear quote.

What do you need from me for a quote?

Where the job is, what the problem is and roughly how big it is. Photos by email help too.

How long will you be here?

As a guide, most jobs take anything from a few hours to several days, depending on the number of plots. Bigger jobs take longer.

Can I add another job to the visit?

Of course. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.

How long should I leave it?

Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint before we leave.

My new home is still under warranty. Should I contact you?

Start with the builder if you are in the snagging or warranty period. If it is not resolved, we will cut it out and reseal it.

Do you guarantee your work?

Yes: twelve months. If there’s a problem with our work in that time, tell us and we will put it right.

The process

Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes anything from a few hours to several days, depending on the number of plots. In a small place like Lenham Forstal, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  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. A sealant chosen for each area goes in and is tooled smooth.
  5. We check every joint and tell you how long each needs to cure.

Before we arrive

  • Let us know about earlier repairs to the joints
  • Where the joints are inside, avoid wetting them before we arrive
  • Move anything stored near the joints

Get a quote

Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will take it from there.

Ask for a quote

Advice

Landlord and commercial work in Lenham Forstal

If you manage several properties in or around Lenham Forstal, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.

What affects the quote in Lenham Forstal

Call for a quick quote. What matters most is:

  • Any working-time requirements on site
  • Access and height
  • The size of the job
  • The number of rooms or windows

Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.

What we need to know

To make quoting easier, please include:

  • A few pictures by email, if you can
  • Roughly how big the job is
  • Whether it’s a home or a business
  • The address or postcode of the job

It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.

Can I do it myself?

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

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