Greater London · England

Glazing & conservatory sealant in Broadfields Estate, Greater London

Glazing silicone in Broadfields Estate from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Cracked silicone between glass panels
  • Conservatory leaks at frame and glazing joints
  • Failed sealant around rooflight glass

Glazing silicone for Broadfields Estate homes and businesses

Glazing silicone in Broadfields Estate, done properly

Conservatory leaks often start at a sealant joint at the glass-to-frame or frame-to-wall joints. We find the joint that is letting water in and renew it and tell you plainly if the cause is something else. If you are dealing with glazing silicone that has cracked or come away and leaks where conservatory glass meets the frame, we can help, on rooflights, glass-to-glass joints and conservatory frames alike.

London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. The mastic around them dries out and cracks with age, which is when draughts and damp patches appear in homes in Broadfields Estate.

Each job carries a 12-month guarantee.

Place
Broadfields Estate (HA8, NW7)
Region
Greater London
Guarantee
12 months on all our work
Quotes
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026
Close-up of hands using a sealant gun on the joint between a glass shower screen and tiles

Landlords, agents and businesses in Broadfields Estate

For anyone letting property in or around Broadfields Estate, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.

We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured for the work.

Broadfields Estate questions

Do you cover Broadfields Estate for glazing silicone?

Yes. We work across London and the South East, and Broadfields Estate is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.

I let a flat near Mill Hill Broadway station. Can you help?

Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.

How long should I leave it?

That depends on the sealant used, so please follow the time we give you.

Can you reseal a frameless shower screen?

Yes, it’s a common job. The screen is resealed with anti-fungal silicone made for wet areas.

Do you take out the old sealant first?

Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.

How long does glazing silicone take?

A typical job takes a few hours, depending on how many joints need doing, including the preparation. We’ll confirm how long when we quote.

Do you do commercial work?

Yes. We’ve worked for hotels, offices and other businesses.

How do I get a quote for glazing silicone in Broadfields Estate?

The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.

When it is not the sealant

To be straight with you, some problems need a different trade:

  • A broken pane or roof panel
  • Structural problems with a conservatory roof
  • Misting between the panes of a double-glazed unit (a failed unit for a glazier)

Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.

Joints and surfaces we work on

  • Conservatory frames
  • Glass-to-glass joints
  • Rooflights
  • Glass balustrade bases
  • Glass-to-frame joints
  • Shower screens

Keeping the joints in good condition

Once the sealant has cured, a few habits help it last:

  • Check the gutters above the glazing for debris
  • Do not use a blade near the sealant
  • Check the silicone on glass every year or so
  • Use a gentle glass cleaner and a soft cloth

Use mild cleaners on and around the silicone. Harsh solvents may damage the bead.

Conservatory leaks rarely stay small. Water travels along the frame and into the wall, so get it looked at when you first see it.

Windows and doors in Broadfields Estate

Rainfall in the South East is lower than in much 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 check that before you book.

Letting a property close to Mill Hill Broadway station? Then glazing joints are worth checking at the end of a tenancy, before a small leak grows. Homes close to St Andrew include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Broadfields Estate is about 1 mile north of Edgware, in Greater London. Jobs in Broadfields Estate get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 764 towns and villages across Greater London. London is on our list too, around 12 miles away.

Here we cover the HA8 and NW7 postcode area for glazing silicone. We cover properties on Clay Lane, Mowbray Road and Cranmer Road. We also cover the places around Broadfields Estate: Edgware (1 mile south), Edgware Bury (1 mile north-west), The Hale (1 mile south-east), Deacon's Hill (1 mile north) and Burnt Oak (1 mile south-east). Larger places within reach include London (12 miles south-east), City of Westminster (9 miles south-east), Marylebone (9 miles south-east), Kensington (9 miles south), St Pancras (10 miles south-east) and Shoreditch (11 miles south-east).

Landmarks near Broadfields Estate

Around Broadfields Estate, our work takes us to homes and buildings near Edgwarebury Park, The Northgate School and London Academy. The nearest railway station is Mill Hill Broadway station, about 1.4 miles south-east of the centre. Well-known places in the area include Royal National Orthopaedic Hospital (1.4 miles west) and Elstree and Borehamwood Museum (2 miles north). Open spaces near Broadfields Estate include Darland's Lake and Edgware Way Grassland.

Map of Broadfields Estate © OpenStreetMap contributors

How it works

Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes anything from an hour or two to most of a day, depending on the size of the job. For a job in Broadfields Estate, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.

  1. We find where water is getting in and check whether it’s a sealant joint.
  2. Old silicone is cut away from the glass and frame without scratching either.
  3. The glass and frame are cleaned and degreased.
  4. We apply a neutral-cure glazing silicone and tool it smooth.
  5. We check the joints and, where safe, run water over them.

How to prepare

  • Let us know about parking restrictions
  • Mention any tricky access
  • On commercial sites, let us know about site rules

Getting a quote

It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you’re ready, phone 0345 464 0079 or drop us an email.

Get a price

Related advice

Why it’s worth doing now in Broadfields Estate

Topping up old silicone can look like a fix, but new silicone won’t bond to old, and the leak normally returns. Cutting out and resealing properly lasts. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler.

Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.

Why us?

  • We never seal over old sealant
  • Anti-fungal sanitary silicone in wet areas
  • A sealant colour to suit the surroundings
  • Homes, businesses and hotels

Take a look at our cost guide and what customers say.

Surface by surface

Glass-to-glass joints

Frameless glass corners and panels are joined with silicone. We renew it with a clear or matching glazing silicone.

Glass balustrade bases

Outdoor balustrade joints face the weather. A sound sealant joint keeps them tidy and dry.

Signs you need glazing silicone in Broadfields Estate

Dirt and grease stop silicone sticking. Where the joint wasn’t cleaned and degreased, the bead can peel away early.

It’s worth asking for a quote if you see:

  • Glazing silicone that has cracked or come away
  • Leaks from the base of a shower screen
  • Water getting into a conservatory at the joints
  • Rooflight joints letting water in

Managing a site like Rosh Pinah Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.

Comparing quotes

  • Are they insured?
  • How hidden problems are handled
  • When the joint can take water or movement
  • What the quote includes, VAT included or not

Choosing a sealant specialist

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job