Kent · England
Hazelwood Glazing Silicone
Glazing silicone for conservatories, rooflights, glass panels and shower screens for homes and businesses in Hazelwood and across Kent. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Leaking glazing joints on a rooflight
- Silicone pulling away from the glass
- Drips on the inside of a conservatory window
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Look over the glazing joints once a year
- Use gentle products around the joints
- Clean glass with a mild cleaner and a soft cloth
- Ventilate the conservatory to cut condensation
Follow the cure time we give you before the joints get wet so the silicone can set properly. After that, clean glass with a mild cleaner.
Damp patches, drips and condensation along a joint are worth checking. The cause may be sealant or another part and we will find out which.
About our glazing silicone in Hazelwood
Not every silicone suits glass. We use a neutral-cure glazing silicone that is suited to glass and the frame, and we tool it to a neat, even finish. We work on shower screens, glass-to-frame joints and glass balustrade bases, and the jobs we see most are water getting into a conservatory at the joints and black or yellowed silicone on glass joints.
Outdoor sealant needs dry, clean surfaces, so work on frames around Hazelwood is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
We stand behind the work with a 12-month guarantee, so you are covered after we have gone.

- Where
- Hazelwood (TN14)
- Region
- Kent
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Glazing silicone in Hazelwood: local notes
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Down House (about 1 mile west) are a reminder that the area around Hazelwood 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.
If you live in an older home near St Mary's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Chelsfield station change hands often, and glazing joints are worth checking at the end of a tenancy, before a small leak grows.
Hazelwood is about 4 miles south of Orpington, in Kent. Jobs in Hazelwood get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Across Kent, we cover 922 places, Hazelwood among them. We also work in London, around 14 miles away.
Postcode districts we cover here for glazing silicone: TN14. You’ll find streets such as Hazelwood Road, Cudham Lane North and Spinney Way. If you’re just outside Hazelwood, we cover Downe (1 mile west), Luxted (1 mile south-west), Cudham (1 mile south), Single Street (1 mile south-west) and Green Street Green (1 mile north-east). We also work in nearby towns such as Dartford (10 miles north-east), Sevenoaks (6 miles south-east), Gravesend (15 miles north-east), Tonbridge (13 miles south-east), Northfleet (14 miles north-east) and Swanley (6 miles north-east).
Near you in Hazelwood
Around Hazelwood, our work takes us to homes and buildings near George and Dragon pub and Green Street Green Primary School and the streets around them. The closest station to Hazelwood is Chelsfield station, roughly 2.1 miles north-east. Well-known places in the area include Orpington Hospital (2.1 miles north-east) and Crofton Roman Villa (2.7 miles north). The countryside around Hazelwood includes Betsom's Hill and Downe Bank Nature Reserve.
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
For anyone letting property in or around Hazelwood, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Questions from Hazelwood
Do you cover Hazelwood for glazing silicone?
Yes, Hazelwood is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Is Hazelwood within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
How long does the job take?
A typical job takes a few hours, depending on how many joints need doing. We’ll confirm how long when we quote.
I rent my home. Can I book you?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Is it possible to redo the silicone on a shower screen?
We can. We remove the old silicone carefully before cleaning and resealing.
Which silicone is used for glass joints?
We pick a glazing silicone to suit the materials. Neutral-cure silicone is the usual choice, as some acetoxy types can attack certain metals.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Can you replace a misted double-glazed unit?
No. We renew the sealant. Glass and sealed units need a glazier.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Surface by surface
Rooflights
We reseal the glazing joints on rooflights. If the leak is from the roof around it, a roofer needs to look.
Glass balustrade bases
Balustrade bases are exposed outdoors. A sound sealant joint keeps them tidy and dry.
Places near Hazelwood
More services for Hazelwood
Do you need glazing silicone in Hazelwood?
New silicone over old silicone won’t bond. Many failed joints we see have been topped up rather than cut out, and water gets between the layers.
These are the problems we’re asked about most:
- Glazing silicone that has cracked or come away
- Water running down inside the glass
- Shower screens leaking along the wall or tray
- Cracked silicone between glass panels
Schools such as Downe Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before you book
- What insurance they hold
- Is VAT in the price?
- Is the old sealant removed completely?
- How the surfaces are prepared before sealing
Leave it or put it right?
A leaking joint won’t fix itself. Water can damage frames, walls, flooring and furniture so early action saves a bigger repair. Older cottages and farmhouses around Hazelwood can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why book with us
- An ARBOMaster approved applicator
- Colour picked to suit the job
- We leave the area clean and tidy
- Any old sealant cut out fully, not covered over
Take a look at how sealant jobs are priced or our reviews.
What we do, step by step
At the end, we look at the finished work together and explain the cure time. The visit itself generally takes a few hours, depending on how many joints need doing, depending on the size of the job. In a small place like Hazelwood, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We trace the leak and confirm it’s a sealant joint.
- The failed silicone is cut out without marking the glass or frame.
- We clean the glass and frame so the new silicone bonds.
- A neutral-cure glazing silicone is applied and tooled.
- We check the finished joints and test with water where it’s safe.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about earlier repairs to the joints
- Mention any parking rules near the property
Getting a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or drop us an email.
