West Berkshire · England

New Build Mastic in Stratfield Saye

New build mastic for Stratfield Saye, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Shower seals failing in the first year or two
  • Gaps behind new kitchen upstands
  • Beads laid onto grit and dust from the build

New build mastic in Stratfield Saye

Your questions about new build mastic in Stratfield Saye

Can you do new build mastic in Stratfield Saye?

Yes. Our work covers London and the South East, and Stratfield Saye is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we’ll send you a clear quote.

Do you cover smaller places like Stratfield Saye?

Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Can I send you my snagging list?

Yes. We often work straight from a snagging list. We agree the sealant items with you before work begins.

Can I do it myself?

Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.

Where do you work from?

We are a Crawley-based firm. Our area covers South East England, London and Scotland.

Do I have to be there?

It depends on the job. For work indoors, someone needs to let us in.

Can you work on commercial sites?

Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.

Are you insured?

Yes. We are fully insured.

New build mastic for homes and businesses in Stratfield Saye

Some owners wait for the first year’s movement before having joints redone. That makes sense for small gaps that are just cosmetic, but a seal that’s letting water through needs doing now. We work on plot handovers, bathrooms & en suites and show homes, and common reasons people get in touch are gaps behind new kitchen upstands and sealant applied over dusty or wet surfaces.

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

Each job carries a 12-month guarantee, whatever its size.

Location
Stratfield Saye (RG7)
Region
West Berkshire
Guarantee
One year on every job
Quotes
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026
Mr Mastic applicator sealing the vertical joint between a glass shower screen and tiled wall

Aftercare tips

So the new joints stay in good condition:

  • Keep photos and emails about snagging items
  • Avoid running a DIY bead over the old one
  • Put sealant faults on your snagging list early
  • Watch for new gaps as the house dries out

Ventilation matters in a new home, which is still drying out. Run the fan or open a window after bathing to help keep mould away.

The sooner you deal with untidy or cracking sealant, the less there is to put right. Small faults turn into leaks if left.

The process

The work is kept neat and contained to the joints we’re treating, so you can get on with your day. Expect the work to take anything from a few hours to several days, depending on the number of plots, and we tell you how long to leave it before we go. For a village or hamlet like Stratfield Saye, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  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, 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. We tool every joint neatly and tell you when each area can be used.

Getting ready for the visit

  • Let us know about earlier repairs to the joints
  • Let us know if you’ve seen damp or leaks
  • 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. A few pictures by email make the job easier to understand.

Ask for a quote

Read more

Landlords, agents and businesses in Stratfield Saye

We also work for property managers and facilities teams in Stratfield Saye and across West Berkshire. We can quote a run of properties together, and we are fully insured for the work.

Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.

What happens if it’s left?

A hairline gap at a skirting can wait, but a leaking seal cannot. Not sure whether yours can wait? You can call 0345 464 0079 or drop us an email with a few photos and we will give you a straight answer. Older cottages and farmhouses around Stratfield Saye can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

Why book with us

  • Sanitary silicone with an anti-fungal additive in wet areas
  • Full insurance on every job
  • Neat joints and a tidy finish
  • Rated 4.9 stars on Google

Take a look at our cost guide and what customers say.

Joints and finishes in Stratfield Saye homes

London and the South East are among 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 Stratfield Saye, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.

Stratfield Saye is about 5 miles east of Tadley, in West Berkshire. Anywhere in RG7, our applicators can take on new build mastic. Our West Berkshire coverage runs to 155 places, Stratfield Saye among them. For nearby work, see our Reading page (7 miles or so).

Jobs for new build mastic in RG7 works the same way as everywhere else we cover. If you need new build mastic at a property on Green Lane, Fair Oak Lane and New Street or a nearby road, our applicators can take on the job. We also cover the places around Stratfield Saye: West End Green (1 mile west), Fair Cross (1 mile north-east), Spanish Green (2 miles south), Stratfield Mortimer (2 miles north-west) and Bramley Green (2 miles south-west). Further out, we also cover Newbury (13 miles west), Thatcham (11 miles west), Burghfield Common (4 miles north-west), Speenhamland (14 miles west), Spencers Wood (4 miles north-east) and Calcot (6 miles north).

Local landmarks in Stratfield Saye

The closest station to Stratfield Saye is Mortimer station, about 1.6 miles north-west. Other landmarks nearby include Calleva Museum (3.3 miles west) and Beaumys Castle (2.4 miles north-east). Not far away are The Marshes Local Nature Reserve.

Map of Stratfield Saye © OpenStreetMap contributors

Can I do it myself?

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.

If you’ve already had a go yourself, that is fine. We cut it out and start again.

When to call us in Stratfield Saye

New homes are full of moisture from plaster, screed and concrete, and it dries out over the first couple of years. Drying timber shrinks and pulls joints apart.

Most people get in touch after spotting something like this:

  • Messy sealant that spoils new finishes
  • Cracked sealant around new window and door frames
  • Plot mastic for developers ahead of handover
  • Gaps behind new kitchen upstands

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

Questions to ask before booking

  • How the surfaces are prepared before sealing
  • Whether they seal over old material or remove it
  • Whether you can choose the colour
  • Which sealant they’ll use, and why

10 questions to ask before you book

How the job changes by surface

Plot handovers

We work through plots to your schedule, sealing each room ready for handover. Each joint is cleaned and primed where needed so the sealant lasts.

Windows and doors

On new builds, external frame sealant can be patchy. We reseal it with a weatherproof, flexible sealant.

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