West Berkshire · England

New-build mastic & snagging in Greenham, West Berkshire

Our applicators work in Greenham on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and a 12-month guarantee.

  • Gaps between new skirting and floors
  • Internal frame sealant that has split
  • Second-fix sealing on new plots

Trusted new build mastic in Greenham

New build mastic for homes and businesses in Greenham

New homes move as they dry out. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. If you have untidy sealant flagged on a snagging list and joints pulling apart as timber shrinks, we can put it right, on skirting & floors, plot handovers and kitchens alike.

Work in a small place like Greenham just needs the journey and access planning, and once on site, the job is the same as anywhere.

Whatever the size of the job, you get the same 12-month guarantee in Greenham and across West Berkshire.

Applicator in a navy top running a bead of silicone up a shower screen wall profile
Location
Greenham (RG19, RG14)
Region
West Berkshire
Guarantee
12 months on all our work
Quote
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

What we can’t put right

In fairness, there are a few things sealant won’t fix:

  • Settlement cracks that need a surveyor
  • Baths and trays that move too much for sealant to cope with
  • Broken tiles or a split tray

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

Surfaces we seal

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

Can I do it myself?

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

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.

New build mastic around Greenham

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.

In and around Greenham, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. For new homes near Newbury Racecourse station, it’s worth checking the sealant early, while snags are still fresh.

Greenham is about 1 mile south-east of Newbury, in West Berkshire. Our applicators cover new build mastic for homes and businesses in Greenham and nearby. Greenham is one of 155 places in West Berkshire we cover for new build mastic. Reading is on our list too, about 15 miles from Greenham.

Every address in RG19 and RG14 is within our area for new build mastic, from the main roads to the quietest streets. Whether your property is on Water Lane, Greenham Road and Draytons View or anywhere close by, we can help. If you’re just outside Greenham, we cover Sandleford (1 mile south-west), Newbury (1 mile north-west), Newtown Common (2 miles south-west), Wash Common (2 miles south-west) and Burghclere Common (2 miles south). Further out, we also cover Burghfield Common (11 miles east), Hungerford (9 miles west), Spencers Wood (15 miles east), Calcot (12 miles east), Lambourn (13 miles north-west) and Burghfield Hill (11 miles east).

Around Greenham

Locally, jobs take us to homes and businesses close to St Bartholomew's School, Sandleford Priory and The Old London Apprentice pub. The nearest railway station is Newbury Racecourse station, roughly 0.9 miles north of the centre. Other landmarks nearby include West Berkshire Community Hospital (1.5 miles north-east) and Donnington Castle (2.7 miles north-west). Open spaces near Greenham include Audrey's Meadow.

Map of Greenham © OpenStreetMap contributors

The process

On the day, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before work begins. The work generally takes a few hours in a single home. Somewhere as small as Greenham, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We start by going through the snagging items or plot schedule with you.
  2. The failed sealant is removed completely, with no layer left behind.
  3. We clean out the dust and grit left from the build.
  4. We prime where needed and apply a sealant suited to each joint.
  5. Each bead is tooled and the cure times explained.

How to prepare

  • Tell us if parking is tricky
  • Mention any sign-in or site rules at work premises
  • Let us know about earlier repairs to the joints

Getting a quote

Want a quote for new build mastic? Please ring 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.

Get a price

Related advice

How we quote for new build mastic

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

  • Any mould that needs treating
  • Any working-time requirements on site
  • Which sealant suits the joint
  • The old material and how stubborn it is

There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or send us an email and we’ll talk you through it.

What to tell us for a quote

To make quoting easier, please include:

  • Whether it’s a home or a business
  • Photos by email, if that is easy
  • Roughly how big the job is
  • What’s wrong with the joints now

To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.

Different surfaces, different methods

Windows and doors

Internal joints between frames and plaster often crack as a new house dries. We remove cracked sealant and apply a flexible one.

Skirting and floors

New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.

Landlords, agents and businesses in Greenham

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.

Housing providers, facilities teams and property managers book us too in Greenham and across West Berkshire. Several sites can be quoted together.

Keeping the joints in good condition

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

  • Clean sealant with mild detergent, not abrasives
  • Raise failed sealant with the developer while you are covered
  • Resist patching a failed seal with a tube from the DIY shop
  • Act quickly if a seal starts to leak

Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries and can be resealed later.

A failed seal in a new home lets water into joists, plasterboard and ceilings. Catching it early keeps the fix to the sealant and protects the rest of the house.

Greenham: your questions answered

Is Greenham within the area you cover?

Yes. Greenham is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Do you work for landlords with property near Newbury Racecourse station?

Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.

Is the work guaranteed?

Yes. There’s a 12-month guarantee on every job.

Do you work through snagging lists?

Yes. Send it with pictures and we will quote for the sealant items. If something isn’t sealant, we will say so.

What do you need from me for a quote?

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

Can you reseal over the builder’s sealant?

No. Over-sealing traps mould and water and soon fails. We remove every bit of the old bead before resealing.

Can you quote for more than one area?

Yes, we can. Several rooms, windows or areas can go on one quote.

Do you work for developers?

Yes. Plot mastic and second-fix sealing for developers is part of our work. Send us the plot schedule and we will quote.

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