Isle of Wight · England

New-build mastic & snagging in Ventnor, Isle of Wight

New-build sealant joints in Ventnor need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.

  • Beads laid onto grit and dust from the build
  • Joints pulling apart as timber shrinks
  • Gaps between new skirting and floors

Trusted new build mastic in Ventnor

Keeping the joints in good condition

How long the joints last depends on use and care. Here’s what we suggest:

  • Don’t seal over failed sealant yourself
  • Use the extractor fan every time you shower
  • Follow the cure time we give you
  • Photograph failed sealant before it’s redone

Keep the bathroom ventilated, especially in the first year. Run the fan or open a window after bathing.

A seal that splits early is often a sign of movement. Have it resealed, and the tray or bath checked, before it gets worse.

How we handle new build mastic in Ventnor

Dust is the enemy of new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the new bead bonds properly. We work on skirting & floors, windows & doors and bathrooms & en suites, and common reasons people get in touch are gaps behind new kitchen upstands and smeared, uneven beads picked up at snagging.

For a new home in or near Ventnor, it’s worth checking the sealant early. Common snags include open skirting joints, lifting shower seals and gaps around frames.

All our work is covered by our one-year guarantee, wherever you are in the Isle of Wight.

Place
Ventnor (PO38)
Region
Isle of Wight
Guarantee
12 months on all our work
Quotes
A clear price before work begins
Phone
0345 464 0079
Updated
26 October 2026
Mr Mastic applicator sealing the vertical joint between a glass shower screen and tiled wall

Ventnor questions

Do you work for landlords with property near Shanklin station?

Yes. We work for letting agents and landlords as well as homeowners. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.

Is Ventnor in your area for new build mastic?

Yes, Ventnor is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear quote.

Should I go to my builder first?

If you’re still within the builder’s snagging or warranty period, report it to them first. If it isn’t sorted, or keeps failing, get in touch with us.

What information do you need?

Just the basics: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or email us.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

Do you work through snagging lists?

Yes. We often work straight from a snagging list. We agree the sealant items with you before any work starts.

Do you take on second-fix sealing for builders?

Yes. We work through plots to your schedule ready for handover. Get in touch with the number of plots and the scope and we’ll quote.

Will the old sealant be removed?

Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.

What the job involves on each surface

Skirting and floors

As timber and screed dry, skirting and floors shift. Caulk cracks; a flexible sealant moves with it.

Kitchens

Worktop, upstand and sink joints in new kitchens often get a hurried bead. We take it out and reseal neatly, colour-matched where it shows.

New build mastic in Ventnor: local notes

Ventnor is close to 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Around Ventnor, as everywhere, new build mastic is only as good as the preparation behind it.

Ventnor is about 8 miles south-east of Newport, in the Isle of Wight. We carry out new build mastic for householders, landlords and businesses in Ventnor. 125 places in the Isle of Wight are on our list. We also work in Portsmouth, about 16 miles from Ventnor.

Here we cover the PO38 postcode area for new build mastic. We cover properties on Old Station Road, Market Street and High Street and the roads around them. Being close to the A3055 and B3327, Ventnor is simple for us to get to for new build mastic. Other places close to Ventnor include Steephill (1 mile south-west), Bonchurch (1 mile east), St Lawrence (1 mile west), Wroxall (2 miles north) and Luccombe Village (2 miles north-east). We also work in nearby towns such as Newport (8 miles north-west), Ryde (9 miles north), Cowes (12 miles north), Sandown (5 miles north-east), Shanklin (3 miles north-east) and East Cowes (11 miles north). Being one of the Isle of Wight’s larger places, Ventnor has every kind of property, from flats to offices. Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.

Landmarks near Ventnor

In Ventnor, that means homes and buildings near St Francis Catholic and Church of England Primary Academy and The Blenheim pub. The closest station to Ventnor is Shanklin station, roughly 3 miles north-east of the centre. Well-known places in the area include Arthur Webster Memorial Hospital for Children (3 miles north-east) and Longshoremans Museum (under half a mile south). For a walk, there’s Alverstone Mead and St Boniface Down.

Map of Ventnor © OpenStreetMap contributors

Work for landlords, hotels and businesses

We work for landlords and agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.

From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.

DIY versus a professional finish

A DIY attempt does not rule out a professional job. We cut it out and start again.

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

Why it’s worth doing now in Ventnor

It often makes sense to do all the sealant items on a snagging list together. You get one visit and one clear quote to plan around. Around Ventnor, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.

Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

Why us?

  • Trusted Arbo and Everbuild sealants
  • We never seal over old sealant
  • Anti-fungal silicone where joints get wet
  • A sealant colour to suit the surroundings

Take a look at what affects the cost or customer reviews.

What happens on the day

Every visit runs the same way: we check the joints, protect the area around them, do the work and clear up. It usually takes anything from a few hours to several days, depending on the number of plots. Parking around Ventnor is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.

  1. Each joint is checked for movement before we start.
  2. Old sealant is cut out and the joints cleaned.
  3. We make sure the joints are dry and prime them if needed.
  4. New sealant goes in, with baths filled first so they’re at their heaviest.
  5. The finished joints are checked and the cure times given.

Before we arrive

  • Plan for the work area to be out of bounds to pets and children
  • Clear items away from the joints we are working on
  • Tell us about any previous sealing or DIY attempts

Get a quote

Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details, and photos are welcome.

Get a quick quote

Related advice

Common problems we fix in Ventnor

A new house holds a lot of water from the build, which takes a year or two to dry out. Drying timber shrinks and pulls joints apart.

It’s worth asking for a quote if you see:

  • Kitchen sealant that has pulled off the wall
  • Shower seals failing in the first year or two
  • Frame joints opening as the plaster dries
  • Sealant work across a run of new homes

If you’ve bought a new home near Shanklin station, the sealant around baths, showers and frames is worth checking in the first year or two.

What to look for in a quote

  • What guarantee comes with the work
  • Is the old sealant removed completely?
  • Is VAT in the price?
  • What happens if the job turns out different

Choosing a sealant specialist

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job