East Sussex · England
Glazing & conservatory sealant in Magham Down, East Sussex
Problem with your glazing joints in Magham Down? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Water running down inside the glass
- Shower screens leaking along the wall or tray
- Rooflight joints letting water in
What the job involves on each surface
Glass-to-glass joints
Silicone joins glass panels in many frameless designs. We reseal with a suitable glazing silicone.
Rooflights
A rooflight faces rain and sun from above. The sealant around the glass and frame wears faster than most.
How we handle glazing silicone in Magham Down
Our work covers conservatory joints, rooflights and glass panels plus shower screens and the bases of glass balustrades. The old sealant comes out, the joint is cleaned and new silicone goes in. If you have water running down inside the glass and rooflight joints letting water in, we can help, on conservatory frames, glass balustrade bases and rooflights alike.
Outdoor sealant needs dry, clean surfaces, so work on frames around Magham Down is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Where
- Magham Down (BN27)
- Region
- East Sussex
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Also near Magham Down
What else we do in Magham Down
What sealant work can’t fix
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- A sealed unit that has misted inside
- Cracked or broken glass
- A roof that has moved or dropped
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer before you book.
Joints and surfaces we work on
- Conservatory frames
- Glass balustrade bases
- Rooflights
- Glass-to-frame joints
- Shower screens
- Glass-to-glass joints
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
Housing providers, facilities teams and property managers book us too in Magham Down and across East Sussex. We can quote a run of properties together, and we are fully insured for the work.
How we quote for glazing silicone
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The product the joint needs
- The old material and how stubborn it is
- Any mould that needs treating
- The number and length of the joints
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
What we need to know
Before you ask for a quote, have a think about:
- If it’s domestic, commercial or a hotel
- The rough size of the job
- Pictures of the joints, sent by email
- How we’d reach the joints
Want a quote for glazing silicone? Please call 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear price before we start.
Common questions in Magham Down
Is Magham Down within the area you cover?
Yes, Magham Down is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you work for landlords with property near Polegate station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or email us with the details for a clear quote.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
Which silicone is used for glass joints?
A neutral-cure glazing silicone that suits the glass and frame. Shower screens get anti-fungal silicone.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
How the visit works
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours, depending on how many joints need doing. For a village or hamlet like Magham Down, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree the joints to be done.
- We cut away the failed silicone.
- We clean and prepare the joint.
- New glazing silicone goes in and is finished neatly.
- The joints are checked before we leave.
Before we arrive
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
- Clear items away from the joints we are working on
Get a quote
For a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Read more
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Squeegee the shower screen after each use
- Do not use a blade near the sealant
- Keep conservatory gutters clear of leaves
- Keep air moving in the conservatory
Gentle products are best near the sealant. Strong solvents can soften or mark it.
Damp patches, drips and condensation along a joint are worth checking. It may be sealant, or something else and we will find out which.
Common problems we fix in Magham Down
Using a sealant not made for glass causes many failures. Some products do not bond well to glass and vinegar-smelling acetoxy silicone can attack some metals.
It’s worth asking for a quote if you see:
- Water escaping where a screen meets the wall
- Black or yellowed silicone on glass joints
- Silicone pulling away from the glass
- Failed joints on frameless glass
Horselunges Manor, about 1.7 miles west, is one of the historic houses in the wider area around Magham Down.
Comparing quotes
- What the quote includes, VAT included or not
- Which colour the sealant will be
- How long the guarantee is
- Who does the work, and how experienced they are
Glazing silicone in Magham Down: local notes
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Horselunges Manor (about 1.7 miles west) nearby, there’s older building stock in the area around Magham Down 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 is traditional sand mastic.
Schools such as Hailsham Community College are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Polegate station? Then glazing joints are worth checking at the end of a tenancy, before a small leak grows.
Magham Down is about 2 miles north-east of Hailsham, in East Sussex. Magham Down gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. 289 places in East Sussex are on our list. For nearby work, see our Brighton page, about 18 miles away.
Work in BN27 works the same way as everywhere else we cover. You will find streets such as Old Road and Nodes Lane, and we cover them all. Neighbouring places we cover for glazing silicone include Hellingly (1 mile west), Upper Horsebridge (1 mile west), Hailsham (2 miles south-west), Lower Horsebridge (2 miles west) and Tile Hurst (2 miles west). Within a short drive, we also cover Eastbourne (7 miles south), Hastings (12 miles east), Bexhill-on-Sea (8 miles east), Seaford (11 miles south-west), Lewes (12 miles west) and Crowborough (13 miles north-west).
What’s near Magham Down
Magham Down’s nearest station is Polegate station, about 4.5 miles south-west. A little further out are Amberstone Hospital (0.5 miles west) and Herstmonceux Castle (2.4 miles east).
