Southampton · England

New-build mastic & snagging in Sholing, Southampton

We cover Sholing for plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.

  • Second-fix sealing on new plots
  • Untidy sealant flagged on a snagging list
  • Beads laid onto grit and dust from the build

New build mastic for Sholing homes and businesses

When it is not the sealant

We will always be straight with you, so here’s what new sealant won’t do:

  • A tray or bath that is not properly supported, until it’s fixed
  • Structural cracks in walls or ceilings
  • Disputes or warranty claims with your builder

If in doubt, call 0345 464 0079 or email us and we’ll say what we think.

What we seal

  • Kitchens
  • Show homes
  • Plot handovers
  • Skirting & floors
  • Bathrooms & en suites
  • Windows & doors

About our new build mastic in Sholing

Some new-home owners let the house settle before resealing. That makes sense for small gaps that are just cosmetic, but a seal that is letting water through needs doing now. If you’re dealing with frame joints opening as the plaster dries and smeared, uneven beads picked up at snagging, we can help, whatever the surface.

Homes around Sholing range from older cottages to newer houses, and their floors range just as widely, each moving in its own way. The sealant at skirtings and thresholds has to suit the floor it meets.

Your job is guaranteed for a year, as with all our work.

Place
Sholing (SO19)
Region
Southampton
Guarantee
A year, on every job
Quotes
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026
Mr Mastic applicator sealing the vertical joint between a glass shower screen and tiled wall

Why deal with it now?

For developers, getting the sealant right first time saves return visits. Snagging visits for failed sealant cost time on every plot. In a smaller place like Sholing, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.

Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or drop us an email for an honest opinion and a quote.

Why choose Mr Mastic in Sholing

  • An ARBOMaster approved applicator
  • We agree the colour with you first
  • White, clear, grey or coloured to suit, where the product allows
  • Experience in homes, commercial sites and hotels

See our cost guide and customer reviews.

Quotes for new build mastic in Sholing

For a quick quote, just ask. What matters most is:

  • How many rooms, windows or areas are involved
  • How much there is to do
  • When we can work, for business premises
  • Which sealant suits the joint

What you pay reflects the work, not guesswork. That is why we ask about the job first.

What to tell us for a quote

When you call or email, it’s useful to know:

  • If it’s domestic, commercial or a hotel
  • Whether it has been sealed before
  • Roughly how big the job is
  • A few pictures by email, if you can

We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job, and photos are welcome.

New build mastic around Sholing

Sholing is within about 2 miles of the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

In and around Sholing, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.

Sholing is about 2 miles south-east of Southampton, in Southampton. For new build mastic in and around Sholing, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We are based in Crawley and cover Southampton, Sholing included. Our Southampton coverage runs to 40 places, and Sholing is one of them.

Jobs for new build mastic in SO19 is quoted and booked the same way as anywhere else. Whether your property is on Bay Road, Ashby Road and Loane Road or a nearby road, our applicators can take on the job. Sholing is on the A3025, so it’s easy for us to get to. Other places close to Sholing include Itchen (1 mile west), Thornhill (1 mile north-east), Bitterne (1 mile north), Peartree Green (1 mile west) and Northam (1 mile north-west). Further out, we also cover Shirley (4 miles north-west), Regents Park (4 miles west), Maybush (5 miles north-west), Coxford (4 miles north-west), Freemantle (3 miles west) and Lordswood (4 miles north-west). Sholing is one of the larger places we cover in Southampton.

What’s near Sholing

We work in homes and buildings around The Red Lion pub, Woolston School and Westwood Woodland Park, among other places. For rail, the closest station is Sholing station, roughly 0.5 miles south-west. Other landmarks nearby include Netley Castle (1.6 miles south) and Marlands Shopping Centre (2.3 miles west). Green spaces nearby include Netley Common.

Map of Sholing © OpenStreetMap contributors

Common problems we fix in Sholing

Baths and trays settle under load once the home is lived in. A bath sealed empty drops slightly when filled, straining the joint.

Most people get in touch when they notice one of these:

  • Cracks appearing as a new home settles
  • Gaps behind new kitchen upstands
  • Sealant that never bonded to the surface
  • Leaking shower tray seals in a new home

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

Before booking anyone

  • What guarantee comes with the work
  • How the colour is chosen
  • How hidden problems are handled
  • Whether VAT is included

How to choose a mastic man

How the visit works

A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. It generally takes a few hours for most snagging lists, longer for a run of plots. In a smaller place like Sholing, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.

  1. First, the list of joints is agreed from your snagging sheet or plot schedule.
  2. Every bit of the old builder’s sealant is cut out.
  3. Joints are vacuumed and cleaned of building dust.
  4. Primer goes on where the surface and product need it, then the new sealant.
  5. Each bead is tooled and the cure times explained.

How to prepare

  • Try not to wet indoor joints just before the visit
  • Let us know about parking restrictions
  • Tell us about access, such as stairs, a lift or high-level joints

Getting a quote

If you are in Sholing and need new build mastic, call 0345 464 0079 or drop 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.

Get a price

Advice

Common questions in Sholing

Is Sholing in your area for new build mastic?

Yes, Sholing is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.

Will you come out to Sholing?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Should I try DIY first?

That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.

When is the best time to reseal in a new build?

It depends on whether water is getting through. Failed seals in wet areas need doing now, but cosmetic gaps can wait for movement to slow.

What information do you need?

Only a few details: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or drop us an email.

Do you work for letting agents?

Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.

Do you remove the old sealant?

Yes. We cut out all the old sealant and clean the joint before resealing.

Do you have insurance?

Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.

DIY sealant or a professional job?

If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.

Surface by surface

Kitchens

Sink joints are wet all the time. A kitchen sealant goes in there suited to the job.

Show homes

Tired or marked sealant in a show home can be renewed. We cut it out and reseal neatly.

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