Kent · England

Longfield Hill Glazing Silicone

Glazing silicone across Longfield Hill and nearby, with old sealant always removed completely and a 12-month guarantee.

  • Mouldy sealant around glass panels
  • Shower screens leaking along the wall or tray
  • Water getting into a conservatory at the joints

Trusted glazing silicone in Longfield Hill

DIY versus a professional finish

If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.

If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.

Glazing silicone for homes and businesses in Longfield Hill

Conservatory leaks often start at a sealant joint at the glass-to-frame or frame-to-wall joints. We trace the leak to the joint and reseal it and tell you plainly if the cause is something else. We work on shower screens, conservatory frames and glass balustrade bases, and the jobs we see most are glass-to-glass joints that have split and split or lifting silicone on glass.

Homes in small places like Longfield Hill often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.

All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

Location
Longfield Hill (DA3)
Region
Kent
Cover
A year, on every job
Quote
Quoted before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Common problems we fix in Longfield Hill

Shower screen silicone gets wet every day. Mould gets into it and the edges begin to peel.

Look out for these signs:

  • Drips on the inside of a conservatory window
  • A quick top-up bead that didn’t last
  • Water escaping where a screen meets the wall
  • Water getting into a conservatory at the joints

For site and facilities teams at buildings such as Istead Rise Primary School, larger buildings have plenty of frames, and the mastic around each one ages.

What to look for in a quote

  • Is VAT in the price?
  • How long the guarantee is
  • Are they insured?
  • Who turns up on the day

How to choose a mastic man

What affects the quote in Longfield Hill

You’ll get a clear quote before work begins. It’s based on:

  • Any working-time requirements on site
  • The number and length of the joints
  • How easy the joints are to reach
  • Mould in or behind the old joints

Leaving a failed joint usually makes the job bigger, not smaller. If you are not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.

Asking for a quote

You do not need to know the technical terms. It helps if you can tell us:

  • If it’s domestic, commercial or a hotel
  • The rough size of the job
  • Photos by email, if that is easy
  • Any access issues, like height or stairs

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or drop us an email.

How it works

Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours, depending on how many joints need doing and we leave things clean and tidy. For a village or hamlet like Longfield Hill, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  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. Surfaces are cleaned with a solvent suited to glass and the frame.
  4. We apply a neutral-cure glazing silicone and tool it smooth.
  5. The finished joints are checked and, where it’s safe, tested with water.

Getting ready for the visit

  • Mention any sign-in or site rules at work premises
  • Keep pets and children clear of the area while we work
  • Where the joints are inside, avoid wetting them before we arrive

Get a quote

We quote each job on its own. Just call 0345 464 0079 or email us with the details and send pictures if you have them.

Ask for a quote

Related advice

Surface by surface

Glass-to-glass joints

Frameless glass corners and panels are joined with silicone. We reseal with a suitable glazing silicone.

Glass-to-frame joints

Glass-to-frame joints need a sealant that bonds to both. We use a glazing silicone suited to each.

Why it’s worth doing now in Longfield Hill

Fixing a leaking screen early protects what’s underneath. Water from a failed joint can soak into the floor before you notice. Around Longfield Hill, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.

Why choose Mr Mastic in Longfield Hill

  • Every job guaranteed for a year
  • More than 20 years in sealant work
  • A sealant colour to suit the surroundings
  • Any old sealant cut out fully, not covered over

Read how sealant jobs are priced and our reviews.

Landlord and commercial work in Longfield Hill

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.

Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.

Windows and doors in Longfield Hill

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 Cobham College (about 2.8 miles east) are a reminder that the area around Longfield Hill has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.

For an older house near a landmark such as Church of St Mildred, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Meopham station change hands often, and a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.

Longfield Hill is about 3 miles south of Northfleet, in Kent. Whether you’re in the middle of Longfield Hill or further out, we cover glazing silicone for every kind of property, from flats and houses to offices and hotels. Across Kent, we cover 922 places, and Longfield Hill is one of them. There’s also a page for London, roughly 20 miles from Longfield Hill.

Jobs for glazing silicone in DA3 is quoted and booked the same way as anywhere else. Whether your property is on Main Road, Nurstead Lane and Ryecroft or anywhere close by, we can help. If you are just outside Longfield Hill, we cover New Barn (1 mile north-west), Hartley (1 mile west), Nash Street (1 mile north-east), Meopham (1 mile south-east) and Longfield (1 mile north-west). We also work in nearby towns such as Maidstone (12 miles south-east), Dartford (6 miles north-west), Sevenoaks (10 miles south-west), Gravesend (4 miles north-east), Tonbridge (13 miles south) and Northfleet (3 miles north).

Around Longfield Hill

Around Longfield Hill, our work takes us to homes and buildings near Rectory Meadow and Longfield Academy and the streets around them. The closest station to Longfield Hill is Meopham station, roughly 1 mile east of the centre. Other landmarks nearby include Stone Castle (4.5 miles north-west) and Gravesham Community Hospital (4 miles north). The countryside around Longfield Hill includes Sawyers Lake.

Map of Longfield Hill © OpenStreetMap contributors

Longfield Hill questions

Is Longfield Hill within the area you cover?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Is Longfield Hill in your area for glazing silicone?

Yes, Longfield Hill is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job.

Are you ARBOMaster approved?

Yes. We hold ARBOMaster approved applicator status, and we are fully insured.

I’m a tenant. Can you help?

Of course. Ask your landlord first, and we can send them the quote if that helps.

Where do you work from?

Mr Mastic is based in Crawley. Our applicators cover Longfield Hill.

Will resealing stop my conservatory leaking?

Often, if the leak is at a sealant joint. We trace the leak first before any sealing.

Is there any odour?

Sometimes, a little. It fades as the sealant cures.

Do I have to be there?

Access is agreed with you when the job is booked. For inside work, that normally means someone being in.

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