Hampshire · England

New Build Mastic in Viables

We cover Viables 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.

  • Smeared, uneven beads picked up at snagging
  • Cracked sealant around new window and door frames
  • Leaking shower tray seals in a new home

Book new build mastic in Viables

New build mastic in Viables, done properly

If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. If you are still within the builder’s snagging or warranty period, tell them first. If you are dealing with sealant work across a run of new homes and joints pulling apart as timber shrinks, we can put it right, whatever the surface.

In smaller places like Viables, new homes tend to come as small developments or single plots. The sealant around baths, showers, frames and skirtings needs to be right from the start.

We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.

Mr Mastic applicator sealing the vertical joint between a glass shower screen and tiled wall
Place
Viables (RG21, RG22, RG25)
Wider area
Hampshire
Cover
A year, on every job
Quotes
A clear quote up front
Telephone
0345 464 0079
Page updated
26 October 2026

Your questions about new build mastic in Viables

Will you come out to Viables?

Yes, Viables 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 cover Viables for new build mastic?

Yes. We work across London and the South East, and Viables is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.

How long does the job take?

That depends on how much there is to do, but as a guide it takes a few hours for most snagging lists, longer for a run of plots. We’ll give you a better idea when we quote.

Can I add another job to the visit?

Yes, and it often makes sense. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.

Do you work for developers?

Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send the schedule and any specification and we will give you a quote.

Can tenants book the work?

Yes. Ask your landlord first, and we can send them the quote if that helps.

How long before the joint can be used?

Cure times vary by product. Before we leave, we will tell you the cure time.

Can you match the sealant colour to my new kitchen or bathroom?

White and clear are the most common, but sealant comes in other colours too. We match the colour to the finish before we begin.

What we do, step by step

Every visit runs the same way: we check the joints, 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. In a smaller place like Viables, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.

  1. We go through the snagging list or plot schedule and agree the joints to do.
  2. We cut out every bit of the failed or messy sealant.
  3. We clean off dust from the build and prime the surfaces where the product needs it.
  4. A sealant chosen for each area goes in and is tooled smooth.
  5. Each area is checked and left with its cure time.

Getting ready for the visit

  • Let us know about earlier repairs to the joints
  • Mention any leaks or damp you’ve noticed
  • Mention any sign-in or site rules at work premises

How to get a quote

Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.

Ask for a quote

Advice

What we’re called out for in Viables

Once people move in, baths and trays take weight and bed down. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used and the sealant may split.

Signs it’s time to call us include:

  • Smeared, uneven beads picked up at snagging
  • Sealant that never bonded to the surface
  • Gaps opening as the house dries out and settles
  • Frame joints opening as the plaster dries

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

Comparing quotes

  • Is VAT in the price?
  • Whether they seal over old material or remove it
  • The length of the guarantee
  • How long to leave it before use

Choosing a sealant specialist

Keeping the joints in good condition

A little care helps the new joints last. We recommend:

  • Keep water off fresh sealant until it has cured
  • Act quickly if a seal starts to leak
  • Watch for new gaps as the house dries out
  • Resist patching a failed seal with a tube from the DIY shop

Avoid standing on the rim of the bath or the edge of the tray. Report any movement in a bath or tray.

Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small and the new finishes intact.

Why act early in Viables

Small cosmetic gaps can wait for the house to settle, but a leaking seal can’t. If you’re unsure which you have, call 0345 464 0079 or email us with pictures and we’ll give you a straight answer. Homes in smaller places like Viables can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.

The cost reflects the work involved, not guesswork. That is why we ask a few questions first and give you a clear quote before any work starts.

What you get with us

  • Sealant colour chosen to suit
  • Fully insured
  • A 12-month guarantee on all work
  • 180+ five-star Google reviews

See our cost guide or what customers say.

What affects the cost of new build mastic

Your quote is based on your job. We look at:

  • Any working-time requirements on site
  • Any mould that needs treating
  • How many areas need sealing
  • The number and length of the joints

Combining jobs into one visit is generally more efficient than separate visits. We will give you a clear quote for the lot.

What we need to know

There’s no need for technical detail. It helps if you can tell us:

  • How many joints, rooms or windows are involved
  • The type of property
  • Access, such as stairs, a lift or height
  • What’s wrong with the joints now

We don’t publish a price list. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or email us.

What new build mastic looks like in Viables

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.

For new homes near Basingstoke station, it’s worth checking the sealant early, while snags are still fresh.

Viables is about 1 mile south-east of Basingstoke, in Hampshire. Anywhere in RG21, we can carry out new build mastic at your property. 683 places in Hampshire are on our list, large and small. Our Reading page covers work nearby.

All of RG21, RG22 and RG25 is covered for new build mastic, from the main roads to the quietest streets. New build mastic is available to properties on Grove Road, Porter Road and Morley Road and the roads around them. If you’re just outside Viables, we cover Cliddesden (1 mile south), Eastrop (1 mile north), Oakridge (1 mile north), Lychpit (2 miles north-east) and Old Basing (2 miles north-east). Larger places within reach include Farnborough (14 miles east), Fleet (11 miles east), Aldershot (14 miles east), Alton (8 miles south-east), Yateley (13 miles north-east) and Tadley (8 miles north).

Local landmarks in Viables

We work in homes and buildings around The Costello School, Queen Mary's College and Hackwood Park. The nearest railway station is Basingstoke station, about 1.3 miles north. Other landmarks nearby include Willis Museum (0.9 miles north) and Festival Place (1.1 miles north). Not far away are The Mill Field and Farleigh Hill.

Map of Viables © OpenStreetMap contributors

Work for landlords, hotels and businesses

Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we are fully insured.

Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.

What sealant work cannot fix

A few problems are outside what sealant work can do:

  • Deciding who is responsible under a builder’s warranty
  • Plumbing faults behind the sealant
  • A tray or bath that isn’t properly supported, until it’s fixed

If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.

Joints and surfaces we work on

  • Plot handovers
  • Bathrooms & en suites
  • Show homes
  • Skirting & floors
  • Windows & doors
  • Kitchens
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job