Greater London · England
Northfields Glazing Silicone
Our applicators work in Northfields on glazing silicone for conservatories, rooflights, glass panels and shower screens. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Water tracking down the inner face of the glass
- Leaks where conservatory glass meets the frame
- Cracked silicone between glass panels
About our glazing silicone in Northfields
We do not replace glass, and misting between panes means a failed sealed unit. What we do is the silicone around the glass, which is where many leaks start. Typical jobs include water getting into a conservatory at the joints and failed sealant around rooflight glass, across glass-to-frame joints, glass balustrade bases and conservatory frames.
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, which is when draughts and damp patches appear in homes in Northfields.
You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or drop us an email.
- Place
- Northfields (W5, W13, TW8)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What we do, step by step
We keep the work tidy and contained to the area we’re working on, so you can get on with your day. The job generally takes a few hours, depending on how many joints need doing, and we tell you how long to leave it before we go. In a London area like Northfields, the main things to plan are parking and access: let us know about parking, the floor we will 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.
- 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.
Preparing for the visit
- Clear items away from the joints we’re working on
- Let us know about parking restrictions
- Keep children and pets away from the work area
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
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Places near Northfields
What else we do in Northfields
What affects the quote in Northfields
The price is agreed before any work begins. It takes into account:
- Mould in or behind the old joints
- How many areas need sealing
- Any working-time requirements on site
- The number and length of the joints
Leaving a failed joint usually makes the job bigger, not smaller. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- The address or postcode of the job
- If someone has resealed it before
- A few photos by email, if you can
- What’s wrong with the joints now
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or send us an email with the details, and photos are welcome.
What glazing silicone looks like in Northfields
In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. With historic houses such as Boston Manor (about 0.5 miles south) nearby, there’s older building stock in the area around Northfields as well as newer homes. 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.
Schools such as Mount Carmel Catholic Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Brentford station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.
Northfields is about 1 mile south of Ealing, in Greater London. Whether you are in the middle of Northfields or further out, we cover glazing silicone for every kind of property, from flats and houses to offices and hotels. Northfields is one of 764 towns and villages in Greater London where we work for glazing silicone. There’s also a page for London, roughly 9 miles from Northfields.
Jobs for glazing silicone in W5, W13 and TW8 works the same way as everywhere else we cover. Local streets include Burns Road, South Road and Elers Road. Main roads around Northfields include the A3002, which makes travel easy. Close by, we work in Brentford (1 mile south-east), Gillette Corner (1 mile south-west), Brentford End (1 mile south), Osterley (2 miles south-west) and Spring Grove (2 miles south-west). Within a short drive, we also cover London (9 miles east), City of Westminster (7 miles east), Marylebone (7 miles east), Kensington (5 miles east), St Pancras (9 miles east) and Shoreditch (10 miles east).
Landmarks near Northfields
Typical jobs here are in homes near Ealing Fields High School, Great Ealing School and Ealing Park Tavern, among other places. Also close by are Library for Iranian Studies (1.8 miles east) and Lammas Park (within half a mile north). The closest station to Northfields is Brentford station, about 0.8 miles south of the centre. A little further out are Gunnersbury Park House - Large Mansion (1.2 miles east) and Treaty Centre (3 miles south-west). Not far away are Middle Lake and Long Wood.
Why act early in Northfields
You do not need new glazing because the sealant has gone. Sound glass and frames generally just need resealing, and we’ll tell you if that’s not the case. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Northfields, the repair is bigger than the sealant job would have been.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Why Northfields clients choose us
- A sealant colour to suit the surroundings
- 4.9 on Google from 180+ five-star reviews
- Neat joints and a tidy finish
- Old sealant always removed completely
Take a look at our cost guide and our reviews.
How the job changes by surface
Glass balustrade bases
The base joint is cut out and resealed. Glass fitting is a separate trade.
Shower screens
A screen’s wall joint and tray joint are where leaks start. Both are resealed with anti-fungal silicone.
Landlord and commercial work in Northfields
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
What we are called out for in Northfields
Silicone won’t bond to a dirty surface. Where the joint wasn’t cleaned and degreased, the bead can peel away early.
Keep an eye out for any of the following:
- Silicone pulling away from the glass
- Mouldy sealant around glass panels
- Failed sealant around rooflight glass
- Failed joints on frameless glass
As a London address, Northfields can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
What your quote should include
- Whether you can choose the colour
- Who turns up on the day
- What product goes in the joint
- When the joint can take water or movement
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, 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 do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Northfields: your questions answered
Is Northfields in your area for glazing silicone?
Yes. Our work covers London and the South East, and Northfields is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Can parking be tricky for a visit in Northfields?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator.
Are you fully insured?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Can landlords and businesses book you?
Yes, often. Several properties can be quoted together.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
What should I tell you?
Let us know what needs doing and where, with photos by email if possible. If we need more, we’ll ask.