Greater London · England
Glazing & conservatory sealant in Plaistow, Greater London
Professional glazing silicone in and around Plaistow, with every bit of old sealant taken out first and a 12-month guarantee.
- Failed sealant around rooflight glass
- Shower screens leaking along the wall or tray
- Failed joints on frameless glass
Glazing silicone for homes and businesses in Plaistow
Glass and frames expand and contract differently, so the sealant between them does a lot of work. Once it splits or comes away, water finds a way through. We replace it with a glazing silicone that suits the glass and frame. Common call-outs are for black or yellowed silicone on glass joints and silicone pulling away from the glass, on glass-to-frame joints, shower screens and glass-to-glass joints.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out, in Plaistow as anywhere.
There’s a 12-month guarantee on every job, large or small.
- Location
- Plaistow (BR1, BR2, BR3)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
Replacing windows or a shower screen isn’t needed for a failed joint. If the glass and frame are sound, new silicone is often all it takes. In a flat in Plaistow, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Combining jobs into one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Plaistow
- We’re fully insured
- Quality sealants from Arbo and Everbuild
- Sanitary silicone with an anti-fungal additive in wet areas
- Any old sealant cut out fully, not covered over
See our cost guide and what customers say.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Structural problems with a conservatory roof
- A broken pane or roof panel
- Leaks from the roof covering or flashing (a roofer’s job)
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before booking.
Surfaces we seal
- Glass-to-glass joints
- Shower screens
- Glass balustrade bases
- Rooflights
- Conservatory frames
- Glass-to-frame joints
Questions from Plaistow
Can you do glazing silicone in Plaistow?
Yes, Plaistow is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Can you help a landlord with a rental near Sundridge Park station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Is the work guaranteed?
You get our 12-month guarantee to every job we do.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Can you reseal a frameless shower screen?
Yes. The old bead comes off without marking the glass, and the joints are cleaned and resealed.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Which silicone is used for glass joints?
Glass needs a sealant made for glazing. Ours is a neutral-cure glazing silicone and anti-fungal silicone in wet areas.
The process
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take anything from an hour or two to most of a day, depending on the size of the job. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Plaistow. It helps if you can point us to a visitor permit or a bay close to the door.
- First we agree the joints to be done.
- Old sealant is removed from the glass and frame.
- The surfaces are cleaned with a suitable solvent.
- We apply and tool the new silicone.
- The joints are checked before we leave.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
- Mention any sign-in or site rules at work premises
Ask for a quote
If you are in Plaistow and need glazing silicone, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Read more
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Clear the conservatory gutters regularly
- Avoid strong solvents on or near the sealant
- Do not leave a drip for the next storm
- Keep scrapers and blades away from the silicone
Follow the cure time we give you before the joints get wet. After that, clean glass with a mild cleaner.
Act on black or lifting silicone early. Peeling silicone lets water in behind and the leak gets worse.
Towns and villages near Plaistow
Also in Plaistow
What affects the cost of glazing silicone
For a quick quote, just ask. The main things that affect it are:
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
- Which sealant suits the joint
- Any mould that needs treating
Commercial jobs are quoted on the same basis as homes: 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 will go through it with you.
What to tell us for a quote
To make quoting easier, please include:
- Any access issues, like height or stairs
- Photos by email, if that’s easy
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
How the job changes by surface
Rooflights
A rooflight faces rain and sun from above. The sealant around the glass and frame wears faster than most.
Glass-to-frame joints
Old sealant is removed carefully from the glass before new glazing silicone goes in.
Plaistow homes and the weather
In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. 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.
Letting a property close to Sundridge Park station? Then leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies. For an older house near a landmark such as St Mary’s Church, the joint between an old wall and a newer frame is normally the first place rain gets in. Plaistow is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Plaistow is about 1 mile north of Bromley, in Greater London. Every kind of property in Plaistow can book us for glazing silicone. The work is guaranteed for a year. Plaistow is one of 764 places in Greater London where we work for glazing silicone. We also work in London, around 7 miles away.
Work in BR1, BR2 and BR3 works the same way as everywhere else we cover. We cover properties on Saxon Road, Arcus Road and Croft Road. Neighbouring places we cover for glazing silicone include Downham (1 mile north), Sundridge (1 mile east), Grove Park (1 mile north-east), Bromley (1 mile south) and Chinbrook (1 mile north-east). We also work in nearby towns such as London (7 miles north-west), City of Westminster (10 miles north-west), Marylebone (10 miles north-west), Kensington (11 miles north-west), St Pancras (9 miles north-west) and Shoreditch (8 miles north-west).
Landmarks near Plaistow
Locally, jobs take us to homes and businesses close to Holy Trinity College Bromley, The Railway Tavern and Haberdashers' Aske's Knights Academy, among other places. The closest station to Plaistow is Sundridge Park station, roughly 0.6 miles south-east of the centre. Nearby you’ll also find Greenwich Castle (4.1 miles north) and Prefab Museum (1.3 miles north-west). Open spaces near Plaistow include Downham Woodland Walk and Summer Hill.