Greater London · England
Glazing & conservatory sealant in Northwick Park, Greater London
Glazing silicone in Northwick Park from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Conservatory leaks at frame and glazing joints
- Silicone pulling away from the glass
- Water running down inside the glass
Questions from Northwick Park
Can parking be tricky for a visit in Northwick Park?
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 help a landlord with a rental near Kenton station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is the work guaranteed?
All our work has a 12-month guarantee, and we are fully insured.
Are you insured?
Yes. We are fully insured, and we can confirm the details when we quote.
How long will you be here?
That depends on how much there is to do, but most jobs take a few hours, depending on how many joints need doing. We will give you a better idea when we quote.
Do you reseal glass shower screens?
Yes. We remove the old sealant and reseal the wall and tray joints.
Do you come to Northwick Park?
Yes. We cover Northwick Park. To book, call 0345 464 0079 or email us.
Will the old sealant be removed?
Yes, every time. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
About our glazing silicone in Northwick Park
Glazing silicone that has yellowed, blackened or come away spoils the look and lets water in. We remove it without scratching the glass or frame before the new bead goes in. If you are dealing with glass-to-glass joints that have split and glazing silicone that has cracked or come away, we can put it right, whatever the surface.
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.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Where
- Northwick Park (HA1, HA3, HA0)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Northwick Park
Also in Northwick Park
DIY versus a professional finish
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Do you need glazing silicone in Northwick Park?
Not every leak is a sealant problem: failed roof panels, slipped glazing bars and blocked gutters cause them too. That’s why we trace the leak first.
The problems people normally mention when they call include:
- Conservatory leaks at frame and glazing joints
- Failed joints on frameless glass
- New silicone smeared over old sealant
- Stained, discoloured glazing silicone
Rented homes near Kenton station change hands often, and a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.
Comparing quotes
- What the cure time is
- What happens if they find a problem under the old sealant
- Whether they’re fully insured
- Whether VAT is included
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Don’t use a blade near the sealant
- Use gentle products around the joints
- Run a squeegee over the glass when you are done
- Keep conservatory gutters clear of leaves
Look over the glazing joints every year or so. Catching a split early keeps the repair small.
A small conservatory leak soon spreads. Water travels along the frame and into the wall, so get it looked at when you first see it.
Landlords, agents and businesses in Northwick Park
Landlords and letting agents in Northwick Park can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
If you manage several properties in or around Northwick Park, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
How the visit works
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes a few hours for most jobs. In Northwick Park, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- We find where water is getting in and check whether it’s a sealant joint.
- We cut out the failed silicone, taking care of the glass and frame.
- Surfaces are cleaned with a solvent suited to glass and the frame.
- Glazing silicone suited to the joint is applied and tooled.
- We check the joints and, where safe, run water over them.
How to prepare
- Clear items away from the joints we are working on
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
Get a quote
Want a quote for glazing silicone? Please ring 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
Advice
What glazing silicone looks like in Northwick Park
With historic houses such as Headstone Manor (about 1.9 miles north-west) nearby, there’s older building stock in the area around Northwick Park 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. In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking.
In the older streets around Saint Cuthberts Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Managing a site like Harrow High School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Northwick Park is about 1 mile south-west of Kenton, in Greater London. Every kind of property in Northwick Park is covered for glazing silicone. Every job comes with our 12-month guarantee. Across Greater London, we cover 764 places, Northwick Park among them. Our London page covers work nearby, about 11 miles away.
All of HA1, HA3 and HA0 is covered for glazing silicone. We cover properties on Lyon Road, Manor Road and Gayton Road and the roads around them. You will find Northwick Park on the A404, so it’s easy for us to get to. Other places close to Northwick Park include Greenhill (1 mile north-west), Harrow on the Hill (1 mile south-west), South Kenton (1 mile east), Kenton (1 mile north-east) and Harrow (1 mile west). We also work in nearby towns such as London (11 miles south-east), City of Westminster (9 miles south-east), Marylebone (9 miles south-east), Kensington (7 miles south-east), St Pancras (10 miles east) and Shoreditch (11 miles east).
Landmarks near Northwick Park
We work in homes and buildings around St Anselm's Catholic Primary School, Orley Farm School and Preston Park and the streets around them. Northwick Park’s nearest station is Kenton station, about 0.6 miles north-east of the centre. Other landmarks nearby include Northwick Park Hospital (under half a mile north-east) and Kodak Museum (1.5 miles north-west). Not far away are Masons Field and Northala Fields.
How the job changes by surface
Conservatory frames
Leaks often start where the frame meets the wall. We remove the failed sealant and renew it.
Shower screens
A screen’s wall joint and tray joint are where leaks start. We reseal both with anti-fungal silicone.
What affects the cost of glazing silicone
We quote each job individually. This is what makes a difference:
- The type of sealant required
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- Pictures of the joints, sent by email
- Whether it has been sealed before
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand.