Essex · England
Galleywood Glazing Silicone
Glazing silicone for conservatories, rooflights, glass panels and shower screens for homes and businesses in Galleywood and across Essex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Sealant that was laid over old silicone and failed
- Drips on the inside of a conservatory window
- Failed sealant around rooflight glass
Glazing silicone in Galleywood
Our work covers conservatory joints, rooflights and glass panels, as well as frameless shower screens and glass balustrade bases. Each joint is cut out, cleaned and resealed. Common call-outs are for silicone pulling away from the glass and sealant that was laid over old silicone and failed, on glass balustrade bases, glass-to-frame joints and rooflights.
In a smaller place like Galleywood, some walls face open ground and catch the full force of the weather, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Galleywood (CM2)
- Region
- Essex
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Landlords, agents and businesses in Galleywood
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we are fully insured.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Can I do it myself?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Also near Galleywood
Other services in Galleywood
Do you need glazing silicone in Galleywood?
New silicone over old silicone will not bond. Many failed joints we see have been topped up rather than cut out leaving a path for water.
Look out for these signs:
- Conservatory leaks at frame and glazing joints
- Sealant that was laid over old silicone and failed
- Water tracking down the inner face of the glass
- Glazing silicone that has cracked or come away
If you let a flat or house near Chelmsford station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.
Questions to ask before you book
- Who turns up on the day
- What the quote includes, VAT included or not
- Which colour the sealant will be
- How the surfaces are prepared before sealing
Galleywood homes and the weather
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Hylands (about 1.8 miles north-west) nearby, there’s older building stock in the area around Galleywood as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to Church of St Michael and All Angels include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For site and facilities teams at buildings such as St Michael's Church of England Voluntary Aided Junior School, larger buildings have plenty of frames, and the mastic around each one ages.
Galleywood is about 3 miles south of Chelmsford, in Essex. Every kind of property in Galleywood can book us for glazing silicone, old or new, large or small. The work is guaranteed for a year. Galleywood is one of 644 places in Essex we cover for glazing silicone.
We cover every part of the CM2 postcode area for glazing silicone. Local streets include The Street, Attwoods Close and Markland Close. Close by, we work in Margaretting Tye (2 miles south-west), Margaretting (3 miles west), Stock (3 miles south-west), Ramsden Heath (4 miles south) and Downham (4 miles south). Further out, we also cover Chelmsford (3 miles north), Basildon (9 miles south), Braintree (13 miles north), Brentwood (9 miles south-west), Maldon (9 miles east) and Canvey Island (13 miles south).
Local landmarks in Galleywood
Locally, jobs take us to homes and businesses close to Great Baddow High School, Galleywood Common and The Eagle Public House. The nearest railway station is Chelmsford station, about 2.6 miles north. A little further out are Peter Edwards Museum And Library (2.3 miles north) and Baddow Hospital (1.3 miles east). For a walk, there’s Hanningfield Reservoir.
What sealant work can’t fix
To be straight with you, some problems need a different trade:
- Cracked or broken glass
- A frame that needs repairing or replacing
- Water coming through the roof rather than a sealant joint
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Glass balustrade bases
- Conservatory frames
- Glass-to-glass joints
- Glass-to-frame joints
- Rooflights
- Shower screens
Leave it or put it right?
If the problem is a misted unit or a broken panel, sealant will not help. We will tell you that rather than seal it anyway and point you to a glazier or roofer. Around Galleywood, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why choose Mr Mastic in Galleywood
- A choice of colours where the product allows
- Domestic, commercial and hotel work
- 4.9 on Google from 180+ five-star reviews
- A 12-month guarantee on all work
Take a look at what affects the cost or customer reviews.
How the visit works
When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work begins. Most jobs take anything from an hour or two to most of a day, depending on the size of the job. A visit to Galleywood is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First, we trace the leak and check it’s coming through a sealant joint.
- We cut out the failed silicone, taking care of the glass and frame.
- Surfaces are cleaned with a solvent suited to glass and the frame.
- We apply a neutral-cure glazing silicone and tool it smooth.
- The finished joints are checked and, where it’s safe, tested with water.
Preparing for the visit
- Let us know about parking restrictions
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.
Advice
Your questions about glazing silicone in Galleywood
Will you come out to Galleywood?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is Galleywood in your area for glazing silicone?
Yes. We work across London and the South East, and Galleywood is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned.
What does glazing silicone cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
I rent my home. Can I book you?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
Should I try DIY first?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
What the job involves on each surface
Conservatory frames
Conservatory frame joints are a common source of leaks. We remove the failed sealant and renew it.
Rooflights
We reseal the glazing joints on rooflights. Leaks from the roof itself need a roofer.
