Greater London · England
Glazing & conservatory sealant in Somers Town, Greater London
Glazing joints in Somers Town need attention? We cut out the old, prepare the joints and apply the right sealant.
- Drips on the inside of a conservatory window
- Water escaping where a screen meets the wall
- Leaking glazing joints on a rooflight
About our glazing silicone in Somers Town
Sealant on glazing does not last for ever. Sun, rain and movement wear it down, and once it cracks, water follows. Resealing puts that right. If you have leaking glazing joints on a rooflight and silicone pulling away from the glass, we can help, whatever the surface.
Many London homes are flats, with windows high above the street. In a converted house or block, the lease usually says who is responsible for the windows, so it’s worth checking before booking.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Somers Town (NW1W, NW1, W1T)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Glass balustrade bases
We reseal the joint where the glass meets the base channel. We don’t install or replace glass.
Conservatory frames
Conservatory frame joints are a common source of leaks. We cut out the old sealant and reseal.
What affects the cost of glazing silicone
The quote reflects the job in front of us. We take into account:
- Whether there’s mould to deal with
- The number and length of the joints
- Access and height
- The type of sealant required
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, call 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- If someone has resealed it before
- Any access issues, like height or stairs
- Pictures of the joints, sent by email
- Where the property is
Need a quote? Please ring 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and give you a clear quote before we start.
What happens on the day
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours, depending on how many joints need doing, including the tidy-up. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- We look at the glazing and agree which joints need resealing.
- We cut away the failed silicone.
- The surfaces are cleaned with a suitable solvent.
- We apply and tool the new silicone.
- We inspect the work and test it where we can.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Clear items away from the joints we are working on
- Try not to wet indoor joints just before the visit
Getting a quote
Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job, and we’ll come back to you with a quote.
Read more
Why deal with it now?
Glazing joints need a sealant made for the job. A general-purpose tube may not bond well or may react with the frame, so we use neutral-cure glazing silicone. In a flat in Somers Town, 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 usually makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why choose Mr Mastic in Somers Town
- Homes, businesses and hotels
- Anti-fungal silicone where joints get wet
- Over 20 years’ experience
- White, clear, grey or coloured to suit, where the product allows
Read our cost guide and our reviews.
Honest limits
We will always be straight with you, so here’s what sealant can’t fix:
- Misting between the panes of a double-glazed unit (a failed unit for a glazier)
- Leaks from the roof covering or flashing (a roofer’s job)
- A roof that has moved or dropped
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Conservatory frames
- Glass-to-glass joints
- Rooflights
- Shower screens
- Glass-to-frame joints
- Glass balustrade bases
Windows and doors in Somers Town
In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking. With historic houses such as Handel Hendrix House (about 1.4 miles south-west) nearby, there’s older building stock in the area around Somers Town as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
As a London address, Somers Town can be tricky for parking: let us know about parking bays, permits or a driveway. If you look after a building such as St Mary and St Pancras Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Somers Town is about 1 mile north-west of St Pancras, in Greater London. For glazing silicone in and around Somers Town, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover Greater London from our Crawley base, Somers Town included. Across Greater London, we cover 764 places, and Somers Town is one of them.
We cover every part of the NW1W, NW1 and W1T postcode area for glazing silicone. Streets in the area include Euston Road, Duke's Road and Phoenix Road, all of which we cover. With the A400 and A501 close by, Somers Town is easy for our applicators to reach. Nearby, we also carry out glazing silicone in Euston (1 mile south), Kings Cross (1 mile east), Agar Town (1 mile north), Bloomsbury (1 mile south-east) and Fitzrovia (1 mile south-west). Larger places within reach include London (3 miles south-east), Kensington (4 miles south-west), Walthamstow (6 miles north-east), Whitechapel (3 miles east), Hampstead (3 miles north-west) and Ruislip (12 miles west).
Near you in Somers Town
Typical jobs here are in homes near Regent High School, Wellcome Collection and Lewis Cubitt Park and the streets around them. Also close by are UCL School of Slavonic and East European Studies (within half a mile south) and Prince Arthur pub (within half a mile south-west). Somers Town has its own railway station: London Euston station. Other landmarks nearby include Brunswick Centre (0.6 miles south-east) and Montfichet's Tower (1.8 miles south-east). Not far away are Barnsbury Wood and St. James's Park Lake.
Somers Town: your questions answered
Is parking an issue for glazing silicone in Somers Town?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Can you do glazing silicone in Somers Town?
Yes. We work across London and the South East, and Somers Town is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Can a conservatory leak be sealed?
That depends where the water is getting in. Sealant joints we can renew, but roof panels and structural problems need a conservatory specialist or roofer.
How do I get a quote for glazing silicone in Somers Town?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or send us an email and let us know what needs doing and where.
Where are you based?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Why not top up the existing silicone?
Silicone doesn’t stick to silicone and water gets between the layers. We cut out the old sealant first.
Is it possible to redo the silicone on a shower screen?
Yes. We cut out the old silicone and reseal the glass-to-wall and glass-to-tray joints.
How long does the job take?
It depends on the size of the job, but as a guide it takes a few hours for most jobs. We will tell you when we quote.
Looking after it afterwards
Aftercare is simple:
- Avoid strong solvents on or near the sealant
- Do not leave a drip for the next storm
- Avoid scraping close to the bead
- Inspect the sealant on glazing annually
Squeegee a shower screen after each shower and let the room air. That slows mould growth on the bead.
A leaking shower screen may not show at first. It can damage the floor or the ceiling below long before you see it.
When to call us in Somers Town
The wrong sealant is a common cause. Not every silicone sticks properly to glass, and acetoxy types can attack some frame materials.
These are the problems we’re asked about most:
- Sealant that was laid over old silicone and failed
- Water getting into a conservatory at the joints
- Glass-to-glass joints that have split
- Failed sealant around rooflight glass
If you live in an older home near St Mary's Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
Before you book anyone
- What preparation is included
- What the cure time is
- Whether the sealant suits the joint
- What the quote includes, VAT included or not