Kent · England

New-build mastic & snagging in Hamstreet, Kent

New build mastic for Hamstreet, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Cracked sealant around new window and door frames
  • New-build shower sealant that has already split
  • Sealant applied over dusty or wet surfaces

Need new build mastic in Hamstreet?

Honest limits

A few problems are outside what sealant work can do:

  • Settlement cracks that need a surveyor
  • Movement caused by a poorly fitted tray or bath
  • Deciding who is responsible under a builder’s warranty

If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.

Where we work in Hamstreet

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

New build mastic for homes and businesses in Hamstreet

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 that stalls, we can do it. Common call-outs are for shower seals failing in the first year or two and second-fix sealing on new plots, on show homes, kitchens and plot handovers.

Somewhere as small as Hamstreet, 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.

Our work is backed for twelve months.

Location
Hamstreet (TN26)
Region
Kent
Guarantee
One year on every job
Quotes
A clear price before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Mr Mastic applicator sealing the vertical joint between a glass shower screen and tiled wall

Signs you need new build mastic in Hamstreet

Sealant is often one of the last jobs before handover. Dusty, unprimed joints are common, and the sealant sits on grit instead of the surface.

If you can see any of these, it’s time to have the joints looked at:

  • Smeared, uneven beads picked up at snagging
  • Frame joints opening as the plaster dries
  • Gaps behind new kitchen upstands
  • Joints pulling apart as timber shrinks

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

Comparing quotes

  • How long to leave it before use
  • Are they insured?
  • Whether VAT is included
  • How long the guarantee is

10 questions to ask before booking

Common questions in Hamstreet

Do you cover smaller places like Hamstreet?

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.

I let a flat near Ham Street station. Can you help?

Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or send us an email with the details for a clear quote.

Do you hold any approvals?

Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.

What should I tell you?

Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.

Do you remove the old sealant?

Yes. All of the old material is cut out and the joint cleaned.

Who should fix failed sealant in a new build?

Start with the builder if you are in the snagging or warranty period. Once that’s done, or if they won’t put it right, we can reseal it properly.

Is the work guaranteed?

Yes. All our work carries a one-year guarantee.

Do I need to be at home?

If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.

DIY sealant or a professional job?

If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.

Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.

How it works

We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours in a single home, and the area is left clean. Somewhere like Hamstreet needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We start by going through the snagging items or plot schedule with you.
  2. Every bit of the old builder’s sealant is cut out down to clean surfaces.
  3. Joints are vacuumed and cleaned of building dust.
  4. Primer goes on where the surface and product need it, then the new sealant.
  5. Each bead is tooled and the cure times explained.

Preparing for the visit

  • For business premises, tell us about site rules or sign-in
  • Let us know about stairs, lifts or work at height
  • Keep pets and children clear of the area while we work

Get a quote

We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.

Get a quick quote

Read more

New homes and floors in Hamstreet

Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

In and around Hamstreet, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.

Hamstreet is about 5 miles south of Ashford, in Kent. Whether you are in the middle of Hamstreet or further out, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. We cover 922 towns and villages across Kent, large and small. You can also see our page for Crawley, about 45 miles away.

Every address in TN26 is covered for new build mastic. Streets in the area include The Street, Dukes Meadow and Rectory Walk, and we cover them all. Neighbouring places we cover for new build mastic include Orlestone (1 mile north-west), Ruckinge (1 mile east), Kenardington (2 miles west), Bromley Green (2 miles north) and Stone Cross (2 miles north-east). Further out, we also cover Ashford (5 miles north), Folkestone (14 miles east), Hythe (10 miles east), Hawkinge (14 miles east), Tenterden (7 miles west) and Cheriton (13 miles east).

Around Hamstreet

Typical jobs here are in homes near The Dukes Head pub, among other places. Hamstreet has its own railway station: Ham Street station. Other landmarks nearby include Brenzett Aeronautical Museum (3.9 miles south) and William Harvey Hospital (5.8 miles north-east). The countryside around Hamstreet includes Orlestone Forest.

Map of Hamstreet © OpenStreetMap contributors

What affects the quote in Hamstreet

We don’t publish a price list. The quote depends on:

  • Access and height
  • How many rooms, windows or areas are involved
  • The size of the job
  • Whether old sealant or filler has to be cut out

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, and we’ll explain the quote if you ask.

What to tell us for a quote

A few details help us give you an accurate quote. When you ask for a quote, tell us:

  • Where the property is
  • Access, such as stairs, a lift or height
  • What the problem is, such as mould, gaps, leaks or cracking
  • Whether it has been sealed before

For new build mastic in Hamstreet, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.

Work for landlords, hotels and businesses

Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.

Landlords and letting agents in Hamstreet can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.

Why deal with it now?

Resealing everything on a snagging list in one visit is normally simpler than chasing joints one at a time. It’s one visit, one quote and one set of cure times. Where a wall is exposed, as many are in small places like Hamstreet, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or email us and we will give you an honest view and a quote.

Why choose Mr Mastic in Hamstreet

  • Anti-fungal sanitary silicone in wet areas
  • More than 20 years in sealant work
  • Quality sealants from Arbo and Everbuild
  • Colour agreed with you before we start

Read what affects the cost or what customers say.

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