West Berkshire · England

Stockcross New Build Mastic

Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Stockcross and across West Berkshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Sealant that never bonded to the surface
  • Untidy sealant flagged on a snagging list
  • Joints pulling apart as timber shrinks

Need new build mastic in Stockcross?

New build mastic for homes and businesses in Stockcross

Developers send us the plot schedule and we work through it. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over using the right product for each joint. If you’re dealing with cracked caulk along new skirting and messy sealant that spoils new finishes, we can put it right, on skirting & floors, plot handovers and bathrooms & en suites alike.

Somewhere as small as Stockcross, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

Location
Stockcross (RG20)
Wider area
West Berkshire
Guarantee
One year on every job
Quotes
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Fresh white silicone going into the corner where a shower screen meets the tiled wall

Aftercare tips

Once the sealant has cured, a few habits help it last:

  • Clean sealant with mild detergent, not abrasives
  • Look at the sealant regularly in the first couple of years
  • Use the extractor fan every time you shower
  • Put sealant faults on your snagging list early

Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers.

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

Questions from Stockcross

Do you cover Stockcross for new build mastic?

Yes, Stockcross is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.

Do you cover smaller places like Stockcross?

Yes. Stockcross is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Can you do plot mastic on a new development?

Yes. We seal plots to the developer’s programme, room by room. Tell us the plots and the joints involved for a clear quote.

Should I go to my builder first?

While the snagging or warranty period runs, the builder should be your first contact. If it isn’t sorted, or keeps failing, get in touch with us.

I rent my home. Can I book you?

We can work for tenants, landlords or agents. Just make sure your landlord agrees.

How long will you be here?

It depends on the size of the job, but as a guide it takes anything from a few hours to several days, depending on the number of plots. We will tell you when we quote.

When is the sealant fully cured?

It depends on the product and the conditions. We tell you how long to leave it before we go.

What colour sealant will you use?

It depends on the joint: white or clear for most sanitary joints, colours for worktops, floors and frames. We agree the colour before any work starts.

Honest limits

We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:

  • Damaged fittings that need replacing
  • Structural cracks in walls or ceilings
  • Your warranty claim itself, which is between you and the builder

If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.

Surfaces we seal

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

Why act early in Stockcross

A hairline gap at a skirting can wait, but a leaking seal can’t. If you are unsure which you have, call 0345 464 0079 or drop us an email with pictures. Older cottages and farmhouses around Stockcross can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.

What you get with us

  • Full insurance on every job
  • More than 20 years in sealant work
  • Anti-fungal silicone where joints get wet
  • A 12-month guarantee on all work

See what affects the cost and what customers say.

What new build mastic looks like in Stockcross

Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

In and around Stockcross, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. If you’ve bought a new home near Newbury station, the sealant around baths, showers and frames is worth checking in the first year or two.

Stockcross is about 3 miles north-west of Newbury, in West Berkshire. For new build mastic in and around Stockcross, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover West Berkshire from our Crawley base. We cover 155 towns and villages across West Berkshire. Our Reading page covers work nearby (17 miles or so).

We cover every part of the RG20 postcode area for new build mastic. You will find streets such as Ermin Street, Chapel Road and Glebe Lane, all of which we cover. Other places close to Stockcross include Marsh Benham (1 mile south-west), Wickham Heath (1 mile north-west), Bagnor (1 mile east), Speen (1 mile south-east) and Boxford (2 miles north). We also work in nearby towns such as Newbury (3 miles south-east), Thatcham (5 miles east), Burghfield Common (14 miles east), Hungerford (6 miles west), Calcot (14 miles east) and Lambourn (9 miles north-west).

Around Stockcross

We work in homes and buildings around Trinity School, The Rising Sun pub and Hamstead Marshall Park, among other places. The closest station to Stockcross is Newbury station, about 2.6 miles south-east of the centre. A little further out are British Balloon Museum & Library Ltd (2.5 miles east) and West Berkshire Community Hospital (3.7 miles east). The countryside around Stockcross includes Rack Marsh.

Map of Stockcross © OpenStreetMap contributors

DIY sealant or a professional job?

A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.

What we do, step by step

Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours in a single home. In a small place like Stockcross, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We start by going through the snagging items or plot schedule with you.
  2. Every bit of the old builder’s sealant is cut out, with no layer left behind.
  3. Joints are vacuumed and cleaned of building dust.
  4. We prime where needed and apply a sealant suited to each joint.
  5. We tool every joint neatly and tell you when each area can be used.

Before we arrive

  • Move anything stored near the joints
  • Keep children and pets away from the work area
  • Tell us about any previous sealing or DIY attempts

Get a quote

If you’re in Stockcross and need new build mastic, ring 0345 464 0079 or email us. 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

Related advice

Landlords, agents and businesses in Stockcross

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.

Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.

Different surfaces, different methods

Skirting and floors

Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. We seal them with a sealant suited to wet areas.

Bathrooms and en suites

En suite seals are easy to miss on a snagging list until they leak. Resealing properly keeps water where it belongs.

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