Greater London · England
Colindale Glazing Silicone
Glazing silicone for Colindale, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Shower screens leaking along the wall or tray
- Cracked silicone between glass panels
- Glazing silicone that has cracked or come away
Why it’s worth doing now in Colindale
Glazing joints need a sealant made for the job. General-purpose sealant from a DIY shop may not suit glass or the frame so we choose a glazing silicone instead. In a flat in Colindale, 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.
What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
Why Colindale customers choose us
- We agree the colour with you first
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal sanitary silicone in wet areas
- A sealant colour to suit the surroundings
Take a look at how sealant jobs are priced or what customers say.
Glazing silicone for homes and businesses in Colindale
We work across Colindale on glazing joints for homes and businesses. Conservatories, rooflights, glass panels and shower screens are all part of the job. If you have cracked silicone between glass panels and mouldy sealant around glass panels, we can put it right.
Many London homes are flats, with windows high above the street. In a converted house or block, the lease normally says who is responsible for the windows, so it’s worth checking before booking.
We stand behind the work with a one-year guarantee.
- Location
- Colindale (NW9, NW4, HA8)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we are called out for in Colindale
Glass and frames expand and contract with the temperature, and they don’t move by the same amount. Over years, that movement tears the silicone.
Signs it’s time to call us include:
- Drips on the inside of a conservatory window
- Leaks from the base of a shower screen
- A quick top-up bead that didn’t last
- Failed sealant around rooflight glass
Colindale is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
What your quote should include
- What the quote includes, VAT included or not
- What happens if the job turns out different
- Whether they seal over old material or remove it
- How long the guarantee is
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Stick to mild cleaners on glass
- Act on drips or damp patches early
- Open vents or windows to let moisture out
- Don’t use a blade near the sealant
Avoid scraping near the new silicone when you clean. Stick to a soft cloth.
Conservatory leaks rarely stay small. Water travels along the frame and into the wall, so get it looked at when you first see it.
What glazing silicone looks like in Colindale
Historic houses like Heath Hall (about 3.5 miles east) are a reminder that the area around Colindale has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking.
Rented homes near Hendon station change hands often, and a shower screen or conservatory joint that leaks is easier to reseal while the property is empty. For site and facilities teams at buildings such as Colindale Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Colindale is about 1 mile south-east of Burnt Oak, in Greater London. Anywhere in NW9, we can carry out glazing silicone at your property. We cover 764 towns and villages across Greater London. You can also see our page for London, roughly 9 miles from Colindale.
We work across NW9, NW4 and HA8 for glazing silicone. If you need glazing silicone at a property on Cecil Road, Booth Road and Ajax Avenue or anywhere close by, we can help. Colindale is on the A5150, which makes it straightforward to reach. We also cover the places around Colindale: West Hendon (1 mile south), The Hyde (1 mile south), The Burroughs (1 mile east), Hendon (1 mile south-east) and Kingsbury (1 mile south-west). Within a short drive, we also cover London (9 miles south-east), City of Westminster (7 miles south-east), Marylebone (7 miles south-east), Kensington (7 miles south), St Pancras (7 miles south-east) and Shoreditch (9 miles south-east).
Around Colindale
Typical jobs here are in homes near Sunny Hill Park, Saracens High School and Kisharon College and the streets around them. For rail, the closest station is Hendon station, about 1 mile south-east. A little further out are Edgware Community Hospital (1.3 miles north-west) and Brent Cross Shopping Centre (1.5 miles south-east). Open spaces near Colindale include Darland's Lake and Parliament Hill.
What affects the cost of glazing silicone
We don’t publish a price list, because no two jobs are the same. What we look at:
- Any mould that needs treating
- The size of the job
- Whether old sealant or filler has to be cut out
- Whether the work is at height
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and send you a clear quote before any work starts.
What we need to know
When you contact us, it’s useful to know:
- Any previous sealing or DIY work
- The rough size of the job
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or drop us an email.
Questions from Colindale
Is Colindale in your area for glazing silicone?
Yes. Our work covers London and the South East, and Colindale is part of that. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
Can you help a landlord with a rental near Hendon station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Can you reseal a frameless shower screen?
Yes. We remove the old sealant and reseal the wall and tray joints.
Do you have insurance?
Yes. Full insurance covers our work.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. Our area covers 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.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
How long before the joint can be used?
Different products cure at different speeds, so follow the cure time we give you.
The process
At the end, we look at the finished work together. The visit itself normally takes a few hours for most jobs, depending on the size of the job. In a London area like Colindale, the main things to plan are parking and access: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- We look at the glazing and agree which joints need resealing.
- We cut away the failed silicone.
- We clean and prepare the joint.
- We apply and tool the new silicone.
- We inspect the work and test it where we can.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about stairs, lifts or work at height
Ask for a quote
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before work begins.
Read more
Also near Colindale
Other services in Colindale
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What the job involves on each surface
Conservatory frames
Frame-to-wall joints on a conservatory move with the weather. They’re resealed with a suitable sealant.
Glass balustrade bases
Glass balustrades sit in a channel that is often finished with sealant. Failed sealant there lets water collect.