Kent · England
Hersden New Build Mastic
New build mastic in Hersden from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps opening as the house dries out and settles
- Worktop and upstand sealant coming away
- Shower seals failing in the first year or two
New build mastic in Hersden, done properly
Some owners wait for the first year’s movement before having joints redone. For small cosmetic gaps, that’s reasonable, but a failed shower or bath seal shouldn’t wait. Common call-outs are for sealant work across a run of new homes and untidy sealant flagged on a snagging list, on windows & doors, show homes and bathrooms & en suites.
In smaller places like Hersden, new homes tend to come as small developments or single plots. Each still needs its sealant and floor joints finished properly from day one.
Big or small, you get the same 12-month guarantee in Hersden and across Kent.
- Location
- Hersden (CT3)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
When something else is needed
To be straight with you, there are a few things sealant won’t fix:
- A tray or bath that isn’t properly supported, until it’s fixed
- Settlement cracks that need a surveyor
- Deciding who is responsible under a builder’s warranty
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Show homes
- Kitchens
- Windows & doors
- Plot handovers
- Skirting & floors
- Bathrooms & en suites
Also near Hersden
Also in Hersden
Why act early in Hersden
Resealing everything on a snagging list in one visit is usually simpler than chasing joints one at a time. It’s one visit, one quote and one set of cure times. Homes in smaller places like Hersden can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Why us?
- White, clear, grey or another colour, product permitting
- We are fully insured
- Arbo and Everbuild products
- 12-month guarantee on every job
Common problems we fix in Hersden
On many sites, sealant goes on in the final rush before handover. Dusty, unprimed joints are common, so the bead never bonds properly.
Look out for any of the following:
- Worktop and upstand sealant coming away
- Shower seals failing in the first year or two
- Second-fix sealing on new plots
- Cracked caulk along new skirting
If you’ve bought a new home near Sturry station, the sealant around baths, showers and frames is worth checking in the first year or two.
Before booking anyone
- How the colour is chosen
- Whether VAT is included
- How hidden problems are handled
- What guarantee comes with the work
How the visit works
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself generally takes a few hours for most snagging lists, longer for a run of plots, depending on the size of the job. For a job in Hersden, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out.
- We clean out the dust and grit left from the build.
- 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.
Preparing for the visit
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
- Mention any leaks or damp you’ve noticed
Get a quote
For new build mastic in Hersden, ring 0345 464 0079 or send 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.
Advice
Different surfaces, different methods
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
Show homes
We seal show-home bathrooms, kitchens and frames to a tidy standard. We’ll plan around viewing times.
Work for landlords, hotels and businesses
For anyone letting property in or around Hersden, several properties can be quoted together. Just tell us the addresses and what each one needs.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
What new build mastic looks like in Hersden
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Hersden, as everywhere, new build mastic is only as good as the preparation behind it.
Hersden is about 4 miles south of Herne Bay, in Kent. We carry out new build mastic for homeowners, landlords and businesses in Hersden and the surrounding area. Hersden is one of 922 towns and villages in Kent where we work for new build mastic. Our Chelmsford page covers work nearby.
Jobs for new build mastic in CT3 is quoted and booked the same way as anywhere else. Streets in the area include The Firs, The Sycamores and Chequer Tree Close, and we cover them all. Neighbouring places we cover for new build mastic include Westbere (1 mile south-west), Stodmarsh (1 mile south-east), Hoath (1 mile north), Knave's Ash (1 mile north) and Sturry (2 miles west). Within a short drive, we also cover Canterbury (4 miles south-west), Margate (11 miles north-east), Dover (14 miles south-east), Ramsgate (11 miles east), Broadstairs (12 miles east) and Whitstable (6 miles north-west).
Local landmarks in Hersden
Typical jobs here are in homes near Frank Montgomery School, Spires Academy and Ye Olde Yew Tree Inn and the streets around them. Hersden’s nearest station is Sturry station, about 1.9 miles south-west. Nearby you’ll also find Canterbury Castle (4.5 miles south-west) and St Martins Hospital (3.4 miles south-west). Not far away are West Blean and Thornden Woods.
FAQs for Hersden
I let a flat near Sturry station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Do you cover smaller places like Hersden?
Yes. Hersden is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.
Are you fully insured?
Yes. Mr Mastic is fully insured.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.
Do you do commercial work?
Yes. We can plan bigger jobs in stages.
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.