Greater London · England
Glazing Silicone in Dollis Hill
Glazing silicone in Dollis Hill from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mouldy sealant around glass panels
- Leaks where conservatory glass meets the frame
- A quick top-up bead that didn’t last
Glazing silicone in Dollis Hill
Glass replacement is not something we do and a misted double-glazed unit needs a glazier. What we do is the silicone around the glass, which is where many leaks start. We work on conservatory frames, glass-to-frame joints and rooflights, and common reasons people get in touch are new silicone smeared over old sealant and water tracking down the inner face of the glass.
From mansion-block windows to modern glazing in new flats, London has every kind of frame. The mastic around them dries out and cracks with age, letting in draughts and water.
The work is covered for a year after we finish. If anything isn’t right with it, call 0345 464 0079 or drop us an email.
- Where
- Dollis Hill (NW2, NW10, NW9)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Frames and glazing around Dollis Hill
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking.
In the older streets around Church of St Michael, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Dollis Hill is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. For site and facilities teams at buildings such as Our Lady of Grace Catholic Junior School, its window and door frames need their mastic kept sound, just like a home’s.
Dollis Hill is about 1 mile north-east of Neasden, in Greater London. For glazing silicone in and around Dollis Hill, please phone 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover Greater London, Dollis Hill included. Dollis Hill is one of 764 places in Greater London where we work for glazing silicone. For nearby work, see our London page, about 7 miles away.
Postcode districts we cover here for glazing silicone: NW2, NW10 and NW9. Whether your property is on Brook Road, Lane Close and Crest Road or a nearby road, we can help. Other places close to Dollis Hill include Staples Corner (1 mile north-east), Neasden (1 mile south-west), Cricklewood (1 mile south-east), Willesden (1 mile south) and Brent Cross (1 mile north-east). Further out, we also cover London (7 miles south-east), City of Westminster (5 miles south-east), Marylebone (5 miles south-east), Kensington (5 miles south), St Pancras (6 miles south-east) and Shoreditch (7 miles east).
Local landmarks in Dollis Hill
Around Dollis Hill, our work takes us to homes and buildings near Woodfield School, The Crown Public House and Gladstone Park and the streets around them. Dollis Hill has its own railway station: Brent Cross West station. Well-known places in the area include Brent Cross Shopping Centre (1 mile north-east) and St Andrew's Hospital (within half a mile south). Green spaces nearby include Darland's Lake and Parliament Hill.
How we quote for glazing silicone
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The old material and how stubborn it is
- Working hours on commercial sites
- Whether there’s mould to deal with
- The size of the job
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.
What to tell us for a quote
What to tell us when you ask for a quote:
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
If you are in Dollis Hill and need glazing silicone, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Surface by surface
Glass balustrade bases
Balustrade bases are exposed outdoors. A sound sealant joint keeps them tidy and dry.
Rooflights
We reseal the glazing joints on rooflights. If the leak is from the roof around it, a roofer needs to look.
Towns and villages near Dollis Hill
Other services in Dollis Hill
Honest limits
New sealant cannot fix everything, and we’ll tell you before we start. Sealant will not put right:
- Condensation trapped between two panes
- A roof that has moved or dropped
- A broken pane or roof panel
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Where we work in Dollis Hill
- Shower screens
- Glass balustrade bases
- Rooflights
- Glass-to-glass joints
- Conservatory frames
- Glass-to-frame joints
What happens if it’s left?
Silicone around glazing needs the right product. 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 Dollis Hill, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
What you get with us
- Approved under the ARBOMaster scheme
- Any old sealant cut out fully, not covered over
- 4.9 on Google from 180+ five-star reviews
- Quality sealants from Arbo and Everbuild
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Avoid strong solvents on or near the sealant
- Open vents or windows to let moisture out
- Clear the conservatory gutters regularly
- Clean glass with a mild cleaner and a soft cloth
Keep the new joints dry for as long as we advise so the silicone can set properly. After that, clean glass with a mild cleaner.
A small conservatory leak soon spreads. Water runs along frames and down walls, so get it looked at when you first see it.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Questions from Dollis Hill
I let a flat near Brent Cross West station. Can you help?
Yes. We work for landlords and letting agents as well as householders, and several properties can go on one quote. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Is parking an issue for glazing silicone in Dollis Hill?
Parking in Dollis Hill, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
How long does glazing silicone take?
A typical job takes a few hours, depending on how many joints need doing, including the preparation. Your quote will say how long we expect yours to take.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
Where do you work from?
We work from Crawley. Our applicators cover Dollis Hill, along with the rest of our area.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Can you reseal the base of a glass balustrade?
Yes. We cut out the failed sealant and reseal the base joint using a sealant that suits the materials.
The process
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the job takes a few hours for most jobs in most cases. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- First, we check where the water gets in.
- The failed silicone is cut out without marking the glass or frame.
- The joint is cleaned and degreased.
- We lay the new bead and tool it smooth.
- Each joint is checked and, where possible, water-tested.
Before we arrive
- Let us know about parking restrictions
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
Ask for a quote
To get a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.