Hampshire · England

Sheet Glazing Silicone

Glazing silicone in Sheet from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Water tracking down the inner face of the glass
  • Cracked silicone between glass panels
  • Rooflight joints letting water in

Glazing silicone near Sheet

Should I try it myself first?

If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.

Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.

Glazing silicone in Sheet

A frameless shower screen depends on its silicone. Leaks generally come from the wall joint or the tray joint and both get fresh anti-fungal silicone. Typical jobs include leaking glazing joints on a rooflight and glazing silicone that has cracked or come away, across conservatory frames, glass balustrade bases and glass-to-glass joints.

Mastic can only go onto a dry, clean joint, so window work in Sheet is booked around the forecast. Let us know about access to all the frames, upstairs ones included.

Every job is covered by a one-year guarantee.

Fresh white silicone going into the corner where a shower screen meets the tiled wall
Where
Sheet (GU32, GU31)
Region
Hampshire
Guarantee
12 months on all our work
Quote
A clear price before any work starts
Call
0345 464 0079
Page updated
26 October 2026

Honest limits

Before you book, it’s worth knowing the limits:

  • Cracked or broken glass
  • A sagging or failing conservatory roof
  • Condensation trapped between two panes

If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.

Joints and surfaces we work on

  • Rooflights
  • Glass balustrade bases
  • Shower screens
  • Glass-to-frame joints
  • Glass-to-glass joints
  • Conservatory frames

Why deal with it now?

A leaking joint will not fix itself. Water can damage frames, walls, flooring and furniture, so it pays to deal with it early. Around Sheet, 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, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we’ll go through it with you.

What you get with us

  • You choose the colour before work begins
  • Sanitary silicone with an anti-fungal additive in wet areas
  • A sealant colour to suit the surroundings
  • We are fully insured

Read how sealant jobs are priced and our reviews.

What happens on the day

All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. It normally takes anything from an hour or two to most of a day, depending on the size of the job. Somewhere as small as Sheet, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. First, we trace the leak and check it’s coming through a sealant joint.
  2. Old silicone is cut away from the glass and frame without scratching either.
  3. Surfaces are cleaned with a solvent suited to glass and the frame.
  4. We apply a neutral-cure glazing silicone and tool it smooth.
  5. We look over every joint and, where we can, test it with water.

Before we arrive

  • Let us know about stairs, lifts or work at height
  • On commercial sites, let us know about site rules
  • Where the joints are inside, avoid wetting them before we arrive

How to get a quote

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, phone 0345 464 0079 or send us an email.

Get a price

Advice

Surface by surface

Glass-to-glass joints

These joints are on show, so we take care to leave a neat bead.

Rooflights

Rooflight leaks can come from the sealant or the roof. We check which it is.

How we quote for glazing silicone

The quote reflects the job in front of us. We take into account:

  • Whether old sealant or filler has to be cut out
  • Mould in or behind the old joints
  • Which sealant suits the joint
  • How many rooms, windows or areas are involved

Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.

Asking for a quote

When you contact us, it’s useful to know:

  • Whether it has been sealed before
  • What’s wrong with the joints now
  • How many joints, rooms or windows are involved
  • Where the job is, and your postcode

If you’re in Sheet and need glazing silicone, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.

Common problems we fix in Sheet

Sunlight breaks sealant down and roof joints get the most sun. Old silicone hardens, cracks and loses its grip on the glass.

Most people get in touch when they notice one of these:

  • Rooflight joints letting water in
  • Water running down inside the glass
  • A quick top-up bead that didn’t last
  • Failed joints on frameless glass

For an older house near a landmark such as Church of St Mary Magdalene, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Questions to ask before you book

  • What product goes in the joint
  • What the cure time is
  • How hidden problems are handled
  • Whether you can choose the colour

How to choose a mastic man

Sheet questions

Can you do glazing silicone in Sheet?

Yes. Our work covers London and the South East, and Sheet is part of that. Just ring 0345 464 0079 or email us with a few details of the job.

Do you cover smaller places like Sheet?

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

Do you replace glass?

No. We renew the sealant. Glass and sealed units need a glazier.

What should I tell you?

A short description and the location, with pictures by email if possible. We will ask anything else we need to know.

How long should I leave it?

Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint.

Where is Mr Mastic based?

Mr Mastic is based in Crawley. We cover Sheet and the rest of Hampshire, along with the rest of our area.

Is a special sealant needed for glass?

A glazing silicone chosen for the joint. Neutral-cure silicone is the usual choice.

Should I try DIY first?

It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

Frames and glazing around Sheet

With historic houses such as Uppark (about 4.5 miles south) nearby, there’s older building stock in the area around Sheet as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

Managing a site like Sheet Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Petersfield station? Then leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.

Sheet is about 1 mile north-east of Petersfield, in Hampshire. Anywhere in GU32, we can carry out glazing silicone at your property. Sheet is one of 683 towns and villages in Hampshire we cover for glazing silicone. Portsmouth is on our list too, about 16 miles from Sheet.

Here we cover the GU32 and GU31 postcode area for glazing silicone. We cover properties on Mill Lane, Village Street and Farnham Road and the roads around them. Neighbouring places we cover for glazing silicone include Petersfield (1 mile south-west), Steep (1 mile north-west), Steep Marsh (1 mile north-west), Stroud (2 miles west) and Oakshott (2 miles north-west). Larger places within reach include Havant (11 miles south), Horndean (8 miles south-west), Alton (10 miles north), Waterlooville (10 miles south-west), Purbrook (11 miles south-west) and Bordon (7 miles north).

Near you in Sheet

Typical jobs here are in homes near The Queens Head pub, Churcher's College and The Petersfield School, among other places. The closest station to Sheet is Petersfield station, roughly 1.1 miles south-west. Other landmarks nearby include Petersfield Community Hospital (1.3 miles south-west) and Bear Museum (1.1 miles south-west). The countryside around Sheet includes Liss Riverside Railway Walk South and Wheatham Hill.

Map of Sheet © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job