Kent · England
Marden New Build Mastic
New build mastic across Marden and nearby, with old sealant always removed completely and a 12-month guarantee.
- Kitchen sealant that has pulled off the wall
- Messy sealant that spoils new finishes
- Gaps between new skirting and floors
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Ventilate bathrooms well, especially in the first year
- Get a leaking seal dealt with right away
- Follow the cure time we give you
- Avoid running a DIY bead over the old one
Photograph failed sealant before it’s redone and keep the builder’s replies. It’s useful if you need to raise other issues later.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in keeps the job straightforward.
How we handle new build mastic in Marden
In a new home, every joint should have a clean, even bead. Smeared, patchy or cracked sealant is worth sorting early, before water reaches anything behind it. If you are dealing with smeared, uneven beads picked up at snagging and leaking shower tray seals in a new home, we can help, whatever the surface.
Where new homes go up in smaller places like Marden, it’s often a small development or a single plot. The sealant around baths, showers, frames and skirtings needs to be right from the start.
Big or small, you get the same one-year guarantee.

- Where
- Marden (TN12)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Nearby places to Marden
What else we do in Marden
Landlord and commercial work in Marden
Letting agents often deal with us directly. Tell us the address, the job and how access works.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Quotes for new build mastic in Marden
The price is agreed before any work begins. It’s based on:
- The amount of work
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- Working hours on commercial sites
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or drop us an email.
Asking for a quote
When you call or email, it’s useful to know:
- Where the property is
- If someone has resealed it before
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
Want a quote for new build mastic? Please ring 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.
What happens on the day
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. It generally takes anything from a few hours to several days, depending on the number of plots. Parking around Marden is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We go through the snagging list or plot schedule and agree the joints to do.
- We cut out every bit of the failed or messy sealant.
- Surfaces are cleaned of building dust and primed where needed.
- A sealant chosen for each area goes in and is tooled smooth.
- We check every joint and tell you how long each needs to cure.
Preparing for the visit
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
For a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Advice
Different surfaces, different methods
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. The joint is stripped back before the new bead goes in and baths are filled before sealing.
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. It’s resealed with an exterior sealant suited to the frame and wall.
Common problems we fix in Marden
Later trades and the final clean can damage fresh sealant. If it’s disturbed before curing, the joint can be left weak, and the problem shows up after you move in.
Signs it’s time to call us include:
- Internal frame sealant that has split
- Sealant applied over dusty or wet surfaces
- Gaps between new skirting and floors
- New-build shower sealant that has already split
In and around Marden, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- How the colour is chosen
- Who does the work, and how experienced they are
- What preparation is included
- How long the guarantee is
New homes and floors in Marden
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Marden station, it’s worth checking the sealant early, while snags are still fresh.
Marden is about 7 miles south of Maidstone, in Kent. Every kind of property in Marden is covered for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. Marden is one of 922 towns and villages in Kent we cover. You can also see our page for Crawley, roughly 30 miles from Marden.
Jobs for new build mastic in TN12 works the same way as everywhere else we cover. New build mastic is available to properties on High Street, The Old Market and Rookery Court and the roads around them. Other places close to Marden include Marden Beech (1 mile south-west), Claygate (2 miles west), Pearson's Green (3 miles west), Brandfold (3 miles south-west) and Capel Cross (3 miles south-west). We also work in nearby towns such as Maidstone (7 miles north), Sevenoaks (15 miles north-west), Royal Tunbridge Wells (10 miles west), Tonbridge (9 miles west), Kings Hill (8 miles north-west) and Foley Park (8 miles north).
Around Marden
There’s a railway station in Marden itself: Marden station. Well-known places in the area include South East Romany Museum (0.9 miles east).
FAQs for Marden
Is Marden in your area for new build mastic?
Yes. We work across London and the South East, and Marden is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Is Marden within the area you cover?
Yes, Marden is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you.
Who should fix failed sealant in a new build?
Start with your builder while their snagging or warranty period runs. If that does not work out, we are happy to quote with our 12-month guarantee.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
Why has my new-build shower seal failed already?
There are usually two causes: movement as the house dries and settles, and sealant laid onto dust without primer. A proper reseal deals with both.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
