Kent · England

New-build mastic & snagging in St Michaels, Kent

New build mastic across St Michaels and nearby, with old sealant always removed completely and a 12-month guarantee.

  • Messy sealant that spoils new finishes
  • Internal frame sealant that has split
  • Sealant that never bonded to the surface

New build mastic in St Michaels

New build mastic in St Michaels, done properly

If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first, and if it is not put right, get in touch with us. Common call-outs are for gaps between new skirting and floors and messy sealant that spoils new finishes, on plot handovers, skirting & floors and show homes.

Somewhere as small as St Michaels, new homes tend to be conversions, self-builds or a few houses rather than an estate. Each still needs its sealant and floor joints finished properly.

A 12-month guarantee comes with the work, just as it does everywhere we cover.

Applicator in a navy top running a bead of silicone up a shower screen wall profile
Location
St Michaels (TN30)
Wider area
Kent
Guarantee
One year on every job
Quote
A clear price before we start
Call
0345 464 0079
Updated
26 October 2026

Honest limits

New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:

  • Structural cracks in walls or ceilings
  • Cracked trays, tiles or worktops
  • Leaking fittings rather than failed sealant

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

Surfaces we seal

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

Landlord and commercial work in St Michaels

Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.

Hotels need rooms back in use, so we plan the work room by room. We have worked in hotels as well as homes and businesses.

When to call us in St Michaels

The wrong product is sometimes used in the wrong place: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Neither lasts long.

Any of these means the joints need attention:

  • Sealant work across a run of new homes
  • Gaps opening as the house dries out and settles
  • Frame joints opening as the plaster dries
  • Messy sealant that spoils new finishes

Whether the job is in St Michaels itself or nearby, the right material for each joint matters as much as a neat finish.

Before booking anyone

  • What happens if the job turns out different
  • Whether they seal over old material or remove it
  • How long to leave it before use
  • The length of the guarantee

10 questions to ask before you book

New build mastic around St Michaels

The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

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

St Michaels is about 8 miles south-west of Ashford, in Kent. From the centre of St Michaels to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. 922 places in Kent are on our list, from the larger towns to small villages. Crawley is on our list too, around 38 miles away.

We cover every part of the TN30 postcode area for new build mastic and the streets around it. You will find streets such as Ox Lane, Swain Road and Grange Road, and we cover them all. With the A28 close by, St Michaels is simple for us to get to. Neighbouring places we cover for new build mastic include London Beach (1 mile north), Tenterden (1 mile south), Broad Tenterden (2 miles south), Parkgate (2 miles west) and Clapper Hill (3 miles west). Larger places within reach include Maidstone (14 miles north-west), Ashford (8 miles north-east), Foley Park (15 miles north-west), Paddock Wood (15 miles north-west), Bearsted (14 miles north-west) and Park Wood (12 miles north-west).

Near you in St Michaels

Locally, jobs take us to homes and businesses close to Turners Field and Homewood School, among other places. Other landmarks nearby include Tenterden and District Museum (1.3 miles south) and Romden Castle (4.3 miles north).

Map of St Michaels © OpenStreetMap contributors

Quotes for new build mastic in St Michaels

You will get a clear quote before we start. It takes into account:

  • Whether there’s mould to deal with
  • The product the joint needs
  • Whether old sealant or filler has to be cut out
  • Whether the work is at height

Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we will go through it with you.

What to tell us for a quote

Photos help, but a description is a good start. Try to tell us:

  • What the problem is, such as mould, gaps, leaks or cracking
  • If someone has resealed it before
  • Any access issues, like height or stairs
  • Pictures of the joints, sent by email

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, call 0345 464 0079 or email us.

Surface by surface

Windows and doors

On new builds, external frame sealant can be patchy. We reseal it with a weatherproof, flexible sealant.

Kitchens

Sink joints are wet all the time. We use a sealant suited to kitchens, food-safe where it’s needed.

What happens on the day

At the end, we look at the finished work together. The visit itself usually takes a few hours for most snagging lists, longer for a run of plots, depending on the size of the job. Somewhere like St Michaels needs a little journey planning: 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. We look at why each joint failed, including any movement.
  2. We remove the failed sealant and clean the joints.
  3. We make sure the joints are dry and prime them if needed.
  4. Baths are filled with water, then the new sealant is applied.
  5. The finished joints are checked and the cure times given.

Before we arrive

  • Mention if the joints have been sealed before
  • Tell us about any water getting in
  • Mention any parking rules near the property

Getting a quote

We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job, and pictures are welcome.

Ask for a quote

Advice

Leave it or put it right?

It often makes sense to do all the sealant items on a snagging list together. It’s one visit, one quote and one set of cure times to plan around. Older cottages and farmhouses around St Michaels can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.

Why book with us

  • We’re fully insured
  • Old sealant always removed completely
  • 180+ five-star Google reviews
  • Anti-fungal silicone where joints get wet

See what affects the cost and our reviews.

FAQs for St Michaels

Is there a guarantee on new build mastic in St Michaels?

Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.

Do you cover St Michaels for new build mastic?

Yes, St Michaels is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.

Do the sealants smell?

Possibly a little. Any smell clears as the sealant cures.

Do you work for developers?

Yes. Plot mastic and second-fix sealing for developers is part of our work. Send us the plot schedule and we will quote.

Where is Mr Mastic based?

We are a Crawley-based firm. We work across South East England, London and Scotland.

How long does new build mastic take?

A typical job takes a few hours for most snagging lists, longer for a run of plots. We will confirm how long when we quote.

Do you do commercial work?

Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.

Do I need to be at home?

Access is agreed with you when the job is booked. Indoors, that normally means someone at home.

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