Kent · England
Harbourland New Build Mastic
New build mastic across Harbourland and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Cracked caulk along new skirting
- Sealant that never bonded to the surface
- Leaking shower tray seals in a new home
What affects the cost of new build mastic
Your quote is based on your job. We look at:
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- The amount of work
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Helping us quote
Before you ask for a quote, have a think about:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that is easy
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.
How we handle new build mastic in Harbourland
New homes move as they dry out. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. We work on bathrooms & en suites, plot handovers and kitchens, and people most often call us about sealant work across a run of new homes and cracks appearing as a new home settles.
For a small place like Harbourland, 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 Harbourland and across Kent.
- Location
- Harbourland (ME14)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Common problems we fix in Harbourland
Once people move in, baths and trays take weight and bed down. A bath sealed empty drops slightly when filled, straining the joint.
These are the problems we are asked about most:
- Cracks appearing as a new home settles
- Frame joints opening as the plaster dries
- Shower seals failing in the first year or two
- Gaps between new skirting and floors
Around Harbourland, as everywhere, new build mastic is only as good as the preparation behind it.
What your quote should include
- What the quote includes, VAT included or not
- Are they insured?
- What happens if the job turns out different
- What preparation is included
The process
At the end, we look at the finished work together. The visit itself usually takes anything from a few hours to several days, depending on the number of plots, depending on the size of the job. Somewhere as small as Harbourland, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely, with no layer left behind.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
How to prepare
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
How to get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
Advice
When it isn’t the sealant
We’ll always be straight with you, so here’s what new sealant will not do:
- Cracked trays, tiles or worktops
- Your warranty claim itself, which is between you and the builder
- 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 will tell you honestly before you book.
Surfaces we seal
- Show homes
- Plot handovers
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
- Kitchens
Joints and finishes in Harbourland homes
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For new homes near Maidstone East station, it’s worth checking the sealant early, while snags are still fresh.
Harbourland is about 2 miles north of Maidstone, in Kent. Every kind of property in Harbourland is covered for new build mastic. Every job comes with our one-year guarantee. 922 places in Kent are on our list. We also work in London, around 31 miles away.
Jobs for new build mastic in ME14 is quoted and booked the same way as anywhere else. We also cover the places around Harbourland: Penenden Heath (1 mile south), Foley Park (1 mile south), Grove Green (1 mile south-east), Ringlestone (1 mile west) and Sandling (1 mile west). Within a short drive, we also cover Sittingbourne (9 miles north-east), Sevenoaks (15 miles west), Gravesend (12 miles north-west), Tonbridge (13 miles south-west), Faversham (15 miles east) and Northfleet (13 miles north-west).
Landmarks near Harbourland
Typical jobs here are in homes near The King's Arms, Valley Park School and Vinters Valley Park, among other places. Harbourland’s nearest station is Maidstone East station, roughly 1.3 miles south-west of the centre. Other landmarks nearby include KIMS hospital (0.9 miles south-east) and Queen's Own Royal West Kent Regiment Museum (1.4 miles south-west). Not far away are Burham Down and Boxley Hills.
Harbourland questions
Is Harbourland within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Harbourland in your area for new build mastic?
Yes, Harbourland is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
When is the best time to reseal in a new build?
For failed seals that let water through, the best time is now. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
Is it normal for sealant to crack in a new home?
Cracking in the first couple of years is common as timber and plaster dry out. Rushed application on dusty surfaces makes it worse.
I rent my home. Can I book you?
We are happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you.
How long does the job take?
A typical job takes a few hours in a single home, including preparation and clearing up. Your quote will say how long we expect yours to take.
Aftercare tips
A little care helps the new joints last. Our advice:
- Record problems with dated photos
- Report sealant problems to your builder during the snagging period
- Keep water off fresh sealant until it has cured
- Check bath and shower seals every few months as the house settles
Watch the joints as the house settles. Small gaps can appear as the house dries and can be resealed later.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Catching it early keeps the fix to the sealant and the new finishes intact.
For landlords and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Surface by surface
Plot handovers
Send us the schedule and any sealant specification. We seal bathrooms, kitchens, frames and floors.
Bathrooms and en suites
En suite showers are a common source of leaks into the room below. A proper reseal keeps water in the tray.