East Sussex · England
Magham Down Gutter Sealing
Gutter sealing for Magham Down, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps along fascia and soffit joints
- Drips from gutter joints and end caps
- Trim joints where the sealant has failed
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
About our gutter sealing in Magham Down
It’s easy to live with a dripping gutter joint, but the water lands on the same spot every time it rains. Sealing it is quick while the gutter is still sound. We’re often asked to deal with failed sealant on a garage door frame and old sealant on roofline trims that has split, on roofline trims, soffit joints and garage door frames.
Somewhere as small as Magham Down, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.

- Where
- Magham Down (BN27)
- Wider area
- East Sussex
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Also near Magham Down
Also in Magham Down
What gutter sealing looks like in Magham Down
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Horselunges Manor (about 1.7 miles west) are a reminder that the area around Magham Down has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Rented homes near Polegate station change hands often, and a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside. Managing a site like Hailsham Community College? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Magham Down is about 2 miles north-east of Hailsham, in East Sussex. Homes, rented property, offices and hotels in Magham Down is covered for gutter sealing. The work is guaranteed for a year. Magham Down is one of 289 places in East Sussex where we work. For nearby work, see our Brighton page.
We cover every part of BN27 for gutter sealing and the streets around it. Streets in the area include Old Road and Nodes Lane. We also cover the places around Magham Down: 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). Further out, 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).
Landmarks near Magham Down
For rail, the closest station is Polegate station, roughly 4.5 miles south-west. Nearby you will also find Amberstone Hospital (0.5 miles west) and Herstmonceux Castle (2.4 miles east).
The process
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours, depending on the number of joints and the access and we leave things clean and tidy. Somewhere like Magham Down needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we find the drip and check the gutter isn’t cracked or sagging.
- We clean out the joint and take out the old sealant.
- The joint is dried, because sealant will not bond to a wet surface.
- We seal the joint with a sealant made for gutters and outdoor use.
- The run is checked and any debris near the joints is cleared.
How to prepare
- Move anything stored near the joints
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
Related advice
Looking after it afterwards
So the new joints stay in good condition:
- Do not lean ladders against the gutter itself
- Keep downpipes clear
- Deal with a drip before winter
- Look along the fascias for open joints
A sagging gutter needs its brackets checked. If it drops, the joints will open.
The sooner a gutter leak is sealed, the less water reaches the wall. We will let you know if the gutter needs more than sealant.
FAQs for Magham Down
Do you cover Magham Down for gutter sealing?
Yes. We work across London and the South East, and Magham Down is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job.
I let a flat near Polegate station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Magham Down, along with the rest of our area.
Do you install new fascias or gutters?
No. We seal leaking joints and trims. Replacement needs a gutter installer or roofer.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses, and we are fully insured.
Are you fully insured?
Yes, we are fully insured for every job we do.
When to call us in Magham Down
Debris in the gutter keeps water sitting at the joints. Water that cannot drain works its way through a weak joint and drips through.
The problems people usually mention when they call include:
- Failed sealant on a garage door frame
- Damp patches inside below a leaking gutter
- Earlier gutter repairs that have peeled off
- Open joints in fascias and soffits
Horselunges Manor, about 1.7 miles west, is one of the historic houses in the wider area around Magham Down.
What your quote should include
- How long to leave it before use
- Is the old sealant removed completely?
- What the quote includes, VAT included or not
- What happens if the job turns out different
Why deal with it now?
A dripping gutter joint keeps wetting the same patch of wall. Left, it can stain walls and lead to damp, so it’s worth sealing early. In a small place like Magham Down, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us and we will talk you through it.
Why us?
- Neat joints and a tidy finish
- 180+ five-star Google reviews
- White, clear, grey or coloured to suit, where the product allows
- Experience in homes, commercial sites and hotels
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Gutters that have dropped or pulled away
- Downpipes that are blocked or broken
- Rotten or damaged fascia boards
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before booking.
What we seal
- Gutter joints
- Gutter end caps
- Roofline trims
- uPVC fascias
- Garage door frames
- Soffit joints
Landlord and commercial work in Magham Down
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for.
