Kent · England
New-build mastic & snagging in Harrietsham, Kent
Professional new build mastic in and around Harrietsham, with old sealant always removed completely and a 12-month guarantee.
- Beads laid onto grit and dust from the build
- Shower seals failing in the first year or two
- Smeared, uneven beads picked up at snagging
How we handle new build mastic in Harrietsham
In a new home, every joint should have a clean, even bead. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water reaches anything behind it. We work on skirting & floors, bathrooms & en suites and plot handovers, and common reasons people get in touch are sealant applied over dusty or wet surfaces and untidy sealant flagged on a snagging list.
In and around Harrietsham, floors range from older timber boards to tiles and newer finishes, each moving in its own way. Skirting and threshold joints need a sealant that suits the floor.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Harrietsham (ME17)
- Wider area
- Kent
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Signs you need new build mastic in Harrietsham
Baths and trays settle under load once the home is lived in. 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.
It’s worth asking for a quote if you see:
- Leaking shower tray seals in a new home
- Internal frame sealant that has split
- Plot mastic for developers ahead of handover
- Skirting joints opening in the first winter
Around Harrietsham, as everywhere, new build mastic is only as good as the preparation behind it.
Comparing quotes
- What happens if the job turns out different
- Whether the sealant suits the joint
- Whether you can choose the colour
- Are they insured?
What we cannot put right
It helps to know what we cannot do:
- Settlement cracks that need a surveyor
- A tray or bath that isn’t properly supported, until it’s fixed
- Disputes or warranty claims with your builder
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.
What we seal
- Show homes
- Bathrooms & en suites
- Skirting & floors
- Kitchens
- Plot handovers
- Windows & doors
Also near Harrietsham
More services for Harrietsham
For landlords and businesses
Landlords and agents in Harrietsham can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
How the job changes by surface
Windows and doors
Draughts around new frames are often a sealant gap. We check and reseal the frame edges.
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
Harrietsham questions
Do you cover Harrietsham for new build mastic?
Yes. We work across London and the South East, and Harrietsham is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job.
Do you cover smaller places like Harrietsham?
Yes, Harrietsham is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is there a guarantee?
Yes, for a year. If there’s a problem with our work in that time, tell us and we will put it right.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
How much does new build mastic cost in Harrietsham?
Size, access and the old material all affect the cost. Ask us for a quote.
Do you have insurance?
Yes, we are fully insured for every job we do.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator.
Do you remove the old sealant?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
New build mastic around Harrietsham
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you’ve bought a new home near Harrietsham station, the sealant around baths, showers and frames is worth checking in the first year or two.
Harrietsham is about 7 miles east of Maidstone, in Kent. Wherever you are in the ME17 postcode area, we can carry out new build mastic at your property. Our Kent coverage runs to 922 places, Harrietsham among them. Chelmsford is on our list too, around 35 miles away.
Every address in ME17 is covered for new build mastic, from the main roads to the quietest streets. Whether your property is on Church Road, Station Road and Norris Walk or a nearby road, we can help. Nearby, we also carry out new build mastic in Marley (1 mile east), Pollhill (1 mile west), Chegworth (1 mile west), Sandway (1 mile south-east) and Platt's Heath (1 mile south). We also work in nearby towns such as Maidstone (7 miles west), Ashford (11 miles south-east), Sittingbourne (7 miles north), Faversham (10 miles north-east), Minster (13 miles north-east) and Kings Hill (12 miles west).
Around Harrietsham
Locally, jobs take us to homes and businesses close to Kiln Wood, The Lenham School and The Roebuck Public House, among other places. Harrietsham has its own railway station: Harrietsham station. Nearby you will also find The Dog Collar Museum (2.1 miles west) and Leeds Castle (2.2 miles west).
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Ventilate bathrooms well, especially in the first year
- Act quickly if a seal starts to leak
- Resist patching a failed seal with a tube from the DIY shop
- Put sealant faults on your snagging list early
Follow the cure time we give you before the area gets wet. Silicone is normally left for about a day before water reaches them.
Do not let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What happens on the day
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for most snagging lists, longer for a run of plots. In a smaller place like Harrietsham, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
Getting ready for the visit
- Mention if the joints have been sealed before
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand, and we will come back to you with a quote.