West Berkshire · England

Glazing & conservatory sealant in Great Shefford, West Berkshire

Glazing silicone for Great Shefford, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Sealant that was laid over old silicone and failed
  • Shower screens leaking along the wall or tray
  • Black or yellowed silicone on glass joints

Book glazing silicone in Great Shefford

How we handle glazing silicone in Great Shefford

A frameless shower screen depends on its silicone. The joint down the wall and the one along the tray are common leak points and both get fresh anti-fungal silicone. We work on glass-to-frame joints, glass balustrade bases and glass-to-glass joints, and the jobs we see most are cracked silicone between glass panels and black or yellowed silicone on glass joints.

Mastic can only go onto a dry, clean joint, so window work in Great Shefford is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.

A 12-month guarantee comes with the work, just as it does everywhere we cover.

Place
Great Shefford (RG17)
Wider area
West Berkshire
Guarantee
One year on every job
Price
A clear price before any work starts
Call
0345 464 0079
Updated
26 October 2026
Fresh white silicone going into the corner where a shower screen meets the tiled wall

Leave it or put it right?

Resealing can’t fix a failed unit or a cracked panel. We will tell you that rather than seal it anyway and point you to a glazier or roofer. Around Great Shefford, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.

Why Great Shefford clients choose us

  • Old sealant always removed completely
  • Experience in homes, commercial sites and hotels
  • Approved under the ARBOMaster scheme
  • We are fully insured

Read how sealant jobs are priced or what customers say.

Great Shefford questions

Is glazing silicone in Great Shefford guaranteed?

All our work, in Great Shefford and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.

Do you cover Great Shefford for glazing silicone?

Yes. Our work covers London and the South East, and Great Shefford is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.

Do I need to be at home?

For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.

Why not top up the existing silicone?

Silicone does not stick to silicone and water gets between the layers. We cut out the old sealant first.

How long before the joint can be used?

Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.

What information do you need?

Let us know what needs doing and where, with pictures by email if possible. We will ask anything else we need to know.

Do you seal glass balustrade bases?

We can. The old sealant is removed and the joint resealed using a sealant that suits the materials.

Do you hold any approvals?

Yes. We are an ARBOMaster approved applicator.

Signs you need glazing silicone in Great Shefford

Dirt and grease stop silicone sticking. If the glass and frame weren’t cleaned properly the sealant may lift within a few years.

Keep an eye out for these signs:

  • Cracked silicone between glass panels
  • Leaks where conservatory glass meets the frame
  • Split or lifting silicone on glass
  • Water running down inside the glass

In the older streets around Church of St Mary, the joint between an old wall and a newer frame is normally the first place rain gets in.

Before you book anyone

  • Which colour the sealant will be
  • Whether the sealant suits the joint
  • How the joint is cleaned and prepared
  • How long the guarantee is

Our hiring checklist

DIY versus a professional finish

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.

How to look after the new joints

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

  • Keep harsh solvents off the silicone
  • Clear the conservatory gutters regularly
  • Keep air moving in the conservatory
  • Get a new leak looked at quickly

Keep conservatory gutters clear, so water drains away from the joints. Blocked gutters can push water where it shouldn’t go.

Don’t leave lifting or mouldy silicone on glazing. Once it starts to peel, water gets behind it and the leak gets worse.

Great Shefford homes and the weather

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.

Schools such as Shefford C.E. Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.

Great Shefford is about 8 miles north-west of Newbury, in West Berkshire. Wherever you are in the RG17 postcode area, we cover glazing silicone for homes and businesses. Our West Berkshire coverage runs to 155 places, and Great Shefford is one of them. Our Reading page covers work nearby (20 miles or so).

We cover every part of RG17 for glazing silicone. Glazing silicone is available to properties on Station Road, The Mead and Miller's Field. We also cover the places around Great Shefford: East Shefford (1 mile south-east), Weston (1 mile south-east), East Garston (2 miles north-west), Shefford Woodlands (2 miles south-west) and East Garston Woodlands (2 miles west). Larger places within reach include Newbury (8 miles south-east), Thatcham (10 miles south-east), Speenhamland (7 miles south-east), Hungerford (5 miles south-west), Lambourn (4 miles north-west) and Shaw (7 miles south-east).

What’s near Great Shefford

Open spaces near Great Shefford include Sole Common Pond.

Map of Great Shefford © OpenStreetMap contributors

What happens on the day

A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. It usually takes anything from an hour or two to most of a day, depending on the size of the job. For a village or hamlet like Great Shefford, 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, we check where the water gets in.
  2. We remove the old sealant carefully.
  3. The joint is cleaned and degreased.
  4. A neutral-cure glazing silicone is applied and tooled.
  5. We check the finished joints and test with water where it’s safe.

Preparing for the visit

  • Clear items away from the joints we are working on
  • Mention any tricky access
  • Let us know about parking restrictions

Getting a quote

Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work before giving you a price.

Get a price

Related advice

Different surfaces, different methods

Glass-to-glass joints

Where two panes meet, the silicone joint takes all the movement. It must be clean, neat and well bonded.

Glass balustrade bases

The base joint is cut out and resealed. We do not install or replace glass.

For landlords and businesses

We also work for property managers and facilities teams in Great Shefford and across West Berkshire. Several sites can be quoted together, and we are fully insured.

For anyone letting property in or around Great Shefford, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.

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