Kent · England
Herne Bay New Build Mastic
Specialist new build mastic for Herne Bay: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Worktop and upstand sealant coming away
- Joints pulling apart as timber shrinks
- Sealant applied over dusty or wet surfaces
Different surfaces, different methods
Show homes
In a show home, the sealant is on display. We lay neat, even beads in colours to suit the finishes.
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. The joint is stripped back before the new bead goes in with baths filled first.
How we handle new build mastic in Herne Bay
We work in new homes and on new-build sites across Herne Bay. Whether it’s one en suite or a run of plots, the method is the same: cut out, clean, prime where needed and reseal neatly. Common call-outs are for kitchen sealant that has pulled off the wall and new-build shower sealant that has already split, on bathrooms & en suites, show homes and plot handovers.
Small business units and shops in a town like Herne Bay have floors that take heavy wear. Threshold and floor joints are best resealed before their edges start breaking away.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Place
- Herne Bay (CT6)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

For landlords and businesses
If you manage several properties in or around Herne Bay, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
When something else is needed
It helps to know what we cannot do too:
- Leaking fittings rather than failed sealant
- Structural cracks in walls or ceilings
- Disputes or warranty claims with your builder
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Plot handovers
- Show homes
- Windows & doors
- Bathrooms & en suites
- Skirting & floors
- Kitchens
What new build mastic looks like in Herne Bay
Herne Bay is within about 1 mile of the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Herne Bay station, it’s worth checking the sealant early, while snags are still fresh.
Herne Bay is about 7 miles north of Canterbury, in Kent. Homes, rented property, offices and hotels in Herne Bay can book us for new build mastic, old or new, large or small. Every job comes with our one-year guarantee. Herne Bay is one of 922 towns and villages in Kent where we work. For nearby work, see our Chelmsford page, about 38 miles away.
Work in CT6 works the same way as everywhere else we cover. If you need new build mastic at a property on High Street, Viscount Square and Market Street or anywhere close by, our applicators can take on the job. With the A299 and B2205 close by, Herne Bay is easy for our applicators to reach for new build mastic. Nearby, we also carry out new build mastic in Hunters Forstal (1 mile south-east), Eddington (1 mile south-west), Broomfield (1 mile south-east), Herne (1 mile south) and Beltinge (1 mile east). Larger places within reach include Canterbury (7 miles south), Margate (11 miles east), Ramsgate (12 miles east), Broadstairs (13 miles east), Whitstable (5 miles west) and Deal (15 miles south-east).
Landmarks near Herne Bay
We work in homes and buildings around Herne Bay High School, Queen's Head Public House and Curtis Wood, among other places. The closest station to Herne Bay is Herne Bay station, about 0.7 miles west. Other landmarks nearby include Tankerton Castle (4.3 miles west) and Whitstable and Tankerton Hospital (3.6 miles west). Green spaces nearby include West Blean and Thornden Woods.
Aftercare tips
Looking after new joints is easy:
- Raise failed sealant with the developer while you’re covered
- Use the extractor fan every time you shower
- Look at the sealant regularly in the first couple of years
- Avoid scourers and strong chemicals on sealant
Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents.
Report failed sealant to the builder while you’re in the snagging period. After that, putting it right may fall to you so report it promptly.
What we’re called out for in Herne Bay
Not every new-build joint gets the right sealant: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Both fail early.
It’s worth asking for a quote if you see:
- Joints pulling apart as timber shrinks
- Plot mastic for developers ahead of handover
- Smeared, uneven beads picked up at snagging
- Cracked caulk along new skirting
In and around Herne Bay, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- What happens if they find a problem under the old sealant
- The length of the guarantee
- How the joint is cleaned and prepared
- Whether you can choose the colour
Herne Bay: your questions answered
Can you do new build mastic in Herne Bay?
Yes. We work across London and the South East, and Herne Bay is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.
What guarantee comes with new build mastic in Herne Bay?
All our work, in Herne Bay and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
What do you need from me for a quote?
A short description and the location. We’ll ask anything else we need to know.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint before we leave.
Do you work through snagging lists?
Yes. Send it with photos and we’ll quote for the sealant items. Items that need a plumber, tiler or the builder are flagged.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
How the visit works
Before we leave, we go over the finished joints with you. 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. A visit in Herne Bay needs access to the work and a place to park close by. If the job is outside, mention gates, side access and anything above ground floor.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
How to prepare
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
- Let us know about parking restrictions
Get a quote
Need a quote? Please ring 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
What happens if it’s left?
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Resealing promptly protects the new finishes around it. Black mould and gaps in sealant do not fix themselves, and in a busy home in Herne Bay they get worse with every use. Now is the easy time to put it right.
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or email us for an honest opinion and a quote.
What you get with us
- Sealant colour chosen to suit
- Anti-fungal sanitary silicone in wet areas
- We are fully insured
- Homes, businesses and hotels
Take a look at what affects the cost or customer reviews.
