Hampshire · England

New-build mastic & snagging in Fair Oak, Hampshire

Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Fair Oak and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Second-fix sealing on new plots
  • New-build shower sealant that has already split
  • Sealant that never bonded to the surface

New build mastic in Fair Oak

Keeping the joints in good condition

Simple care keeps the joints in good condition. We recommend:

  • Resist patching a failed seal with a tube from the DIY shop
  • Report sealant problems to your builder during the snagging period
  • Open a window or run the fan after bathing
  • Keep photos and emails about snagging items

Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents as they wear the bead.

Do not let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you.

New build mastic for homes and businesses in Fair Oak

For builders and developers, we work through plots to the schedule you give us. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over. Typical jobs include cracked caulk along new skirting and sealant that never bonded to the surface, across windows & doors, show homes and bathrooms & en suites.

Homes around Fair Oak 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.

A 12-month guarantee comes as standard.

Place
Fair Oak (SO50)
Wider area
Hampshire
Cover
12 months on all our work
Price
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Close-up of hands using a sealant gun on the joint between a glass shower screen and tiles

Leave it or put it right?

A tube of sealant from the DIY shop won’t fix the cause: grit, unprimed surfaces and old layers underneath. Cutting out, cleaning and priming are what make the difference. In an older home around Fair Oak, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.

The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.

Why book with us

  • Sanitary silicone with an anti-fungal additive in wet areas
  • White, clear, grey or another colour, product permitting
  • Fully insured
  • You choose the colour before work begins

Read how sealant jobs are priced and what customers say.

New build mastic around Fair Oak

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.

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

Fair Oak is about 2 miles east of Eastleigh, in Hampshire. Anywhere in SO50, we cover new build mastic for homes and businesses. Fair Oak is one of 683 places in Hampshire we cover.

Postcode districts we cover here for new build mastic: SO50. Streets in the area include Dean Road, Witt Road and Sandy Lane, all of which we cover. If you are just outside Fair Oak, we cover Horton Heath (1 mile south), Wintershill (2 miles east), Durley (2 miles south-east), Lower Upham (2 miles east) and Durley Street (2 miles east). Within a short drive, we also cover Winchester (7 miles north), Gosport (13 miles south-east), Havant (15 miles south-east), Fareham (9 miles south-east), Horndean (13 miles east) and Totton (10 miles west).

Around Fair Oak

Around Fair Oak, our work takes us to homes and buildings near The Old George Public House, Wyvern Technology College and Wyvern Technology College, among other places. The nearest railway station is Hedge End station, roughly 2.2 miles south. Other landmarks nearby include Moorgreen Hospital (2.7 miles south-west) and Eastleigh Museum (2.5 miles west). For a walk, there’s Bishops Waltham Branch LNR.

Map of Fair Oak © OpenStreetMap contributors

Different surfaces, different methods

Skirting and floors

Gaps under skirting are one of the most common new-build snags. We seal it with a flexible sealant that copes with the movement.

Plot handovers

Developers can send the plot schedule and specification for a quote. Sealant work across the plot is covered to the agreed spec.

DIY sealant or a professional job?

If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.

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

What we’re called out for in Fair Oak

Sealant applied onto damp surfaces doesn’t bond well. Site programmes do not always leave time for joints to dry before the sealant goes on.

Common reasons people contact us are:

  • Skirting joints opening in the first winter
  • Sealant work across a run of new homes
  • Beads laid onto grit and dust from the build
  • Internal frame sealant that has split

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

Questions to ask before you book

  • What guarantee comes with the work
  • How long to leave it before use
  • What product goes in the joint
  • Whether they’re fully insured

Choosing a sealant specialist

Fair Oak questions

Do you cover smaller places like Fair Oak?

Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

I let a flat near Hedge End station. Can you help?

Yes, we work for landlords and letting agents. Just call 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.

Will the old sealant be removed?

Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

What should I tell you?

The location, the problem and the rough size of the job. Photos by email help too.

Will it make a mess?

Very little: the area around the joints is protected first, and we tidy up before we go.

How much does new build mastic cost in Fair Oak?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before we start.

Do you work for hotels and businesses?

Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.

Can you do several jobs on one visit?

Yes. More than one area can go on one quote.

When something else is needed

To be straight with you, some problems need a different trade:

  • Settlement cracks that need a surveyor
  • Disputes or warranty claims with your builder
  • Plumbing faults behind the sealant

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

Surfaces we seal

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

What we do, step by step

There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes anything from a few hours to several days, depending on the number of plots from start to finish. In a smaller place like Fair Oak, 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 start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
  2. Failed or untidy sealant is cut out completely.
  3. We clean off dust from the build and prime the surfaces where the product needs it.
  4. New sealant suited to each joint is applied and tooled neatly.
  5. We check every joint and tell you how long each needs to cure.

Before we arrive

  • Where the joints are inside, avoid wetting them before we arrive
  • Let us know if you’ve seen damp or leaks
  • Keep children and pets away from the work area

Ask for a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you’re ready, ring 0345 464 0079 or drop us an email.

Get a quick quote

Read more

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