By Local TV Aerials and Satellites – Same-day engineers across
East Sussex
and West Sussex
If your TV picture freezes, pixelates or disappears whenever the weather turns bad, you are far from alone. Across Sussex, weather-related aerial and satellite faults are among the most common problems we deal with. High winds, heavy rain, rapid pressure changes and coastal storms all affect TV reception, but they should not cause a total loss of picture in a healthy system.
If your signal collapses quickly whenever the weather changes, there is almost always an underlying technical issue that needs attention. A properly installed system should maintain a stable picture during most weather conditions. In this 2026 guide we explain why weather affects TV signals, the ten most common causes of weather-related failures, what you can safely check yourself and when it is best to call an engineer.
We work daily across Brighton and Hove,
Lewes,
Eastbourne,
Worthing,
Crawley
and surrounding areas, allowing us to identify exactly which weather-related problems affect homes and businesses in Sussex.
For fast assistance, you can request a same-day repair via our
TV aerial repair service
or our satellite repair service,
or call us on 0800 802 1791.
1. Why Bad Weather Affects TV Signals
Digital aerial and satellite signals travel long distances through the atmosphere. Weather affects the density and moisture of the air, which influences how well the signal reaches your home. Rain absorbs and scatters signals. Wind can move equipment. Low pressure can reduce signal strength. But these natural effects should only cause minor variations.
If your TV picture collapses quickly, it is usually because the system is already weakened by issues such as poor alignment, damaged cables or ageing equipment. Weather simply exposes the fault.
Ofcom offers general guidance explaining how outdoor conditions affect digital television reception:
Ofcom TV reception advice
For a deeper look at this, see our guide to why TVs pixelate and freeze.
2. High Winds Moving the Aerial or Satellite Dish
Sussex is well known for strong winds, especially coastal areas such as
Seaford,
Shoreham
and Newhaven.
Even small movements of an aerial or dish can break the line-of-sight needed for stable reception.
- Picture freezes during gusts of wind
- Reception returns when the wind calms
- Satellite dishes show “No Signal” during storms
- Pixelation that comes and goes throughout the day
Satellite dishes are especially sensitive—millimetres of movement can disrupt the signal. We frequently strengthen and realign brackets, masts and dishes as part of our
fault-finding service.
3. Rain Fade on Satellite Systems
Rain fade describes the natural weakening of satellite signals during heavy rain. Some rain fade is normal, but if your picture disappears at the first sign of rain, the system lacks sufficient signal margin.
Underlying issues usually include:
- Slight dish misalignment
- A weakened or water-damaged LNB
- Old or poor-quality coaxial cable
- A dish that is too small for your location
Once alignment and component condition are restored, the system can withstand heavy rain without failing.
4. Water Ingress into Cables
Damaged cables are one of the biggest causes of weather-related faults. Cracked sheathing allows water to travel down the cable and interfere with the signal.
- Pixelation during or after rain
- Signal failure that improves as the cable dries
- Specific channels dropping out
- Visible cracks or discolouration on the cable
Replacing old cable with modern double-screened satellite-grade coax normally fixes the problem immediately.
If you are unsure whether your cables are the issue, this can be checked quickly during a visit or as part of our
cabling services.
5. Moisture Entering the Aerial or LNB
Wet weather often exposes equipment with deteriorating seals. Moisture in the aerial housing or the LNB produces intermittent and unpredictable dropouts.
- Picture worsens immediately after rainfall
- Signal fluctuates as the equipment dries out
- White corrosion or rust visible on components
Replacing the affected aerial or LNB ensures long-term weather resistance. For Freesat and Sky systems we use weather-sealed LNBs designed for coastal areas.
6. Trees Causing Interference in Wind or Rain
Wet or windy foliage can block or scatter TV signals. In summer, dense leaves absorb significantly more signal than winter branches.
- Signal drops during windy weather
- Better reception in winter than summer
- Intermittent dropouts depending on wind direction
If trees are the cause, we normally reposition the aerial or dish to achieve a clear path. This is especially important for satellite installations, where line-of-sight must be precise.
7. Ageing Aerials Struggling During Weather Changes
Aerials degrade over time. Metal fatigue, corrosion and loose elements reduce their ability to pick up a stable signal, especially during changing weather.
Symptoms include:
- Gradual decline in performance over years
- Pixelation in mild weather and failure in storms
- Bent or rusted elements on the aerial
Upgrading to a modern high-gain aerial usually resolves weather-based issues completely.
8. Low Signal Areas in Sussex Affected More by Weather
Parts of Sussex such as Lewes, areas of Brighton, inland villages and locations behind hills naturally receive weaker Freeview or satellite signals. When your baseline signal is already low, bad weather pushes it below the threshold needed for a stable picture.
Solutions include high-gain aerials, dish relocation, masthead amplifiers or upgraded cabling. We often combine approaches for the best result.
9. Faulty Amplifiers or Boosters
Many homes use amplifiers to distribute signals to multiple rooms. Older or weather-damaged amplifiers often cut out during storms due to moisture or voltage fluctuations.
- All TVs fail at the same time
- Signal drops during lightning or heavy rain
- Amplifier boxes feeling unusually warm
Replacing the amplifier and resealing outdoor connectors usually resolves the instability.
10. Loose or Corroded Brackets, Masts and Fixings
Over years of exposure, brackets rust and bolts loosen, causing the aerial or dish to wobble. Even small movement affects alignment during bad weather.
- Visible wobbling in wind
- Dish arm sagging or bending
- Rust or corrosion on brackets and fixings
Replacing damaged hardware and realigning the system provides long-term stability.
When Weather Reveals an Underlying Problem
Most homeowners assume weather causes the problem. In reality, weather exposes a weakness that is already there. Examples include:
- A dish that is slightly off alignment appears fine on dry days
- A cracked cable only fails when water enters
- A failing amplifier cuts out during humidity changes
- An ageing aerial struggles during wind but recovers afterwards
Fixing these underlying issues prevents weather from causing repeat failures.
When to Call a Professional Engineer
Call an engineer if:
- Your signal fails regularly during wind or rain
- Pixelation affects multiple channels
- Multiple rooms experience issues at the same time
- The aerial or dish looks loose, rusted or damaged
- Trees or buildings appear to block line-of-sight
A professional engineer can diagnose the true cause using digital meters and safely access roofs, chimneys and high walls to fix alignment issues.
Same-Day Aerial and Satellite Repairs Across Sussex
Local TV Aerials and Satellites provides same-day aerial and satellite repairs across Sussex. We fix aerials, dishes, LNBs, cables, amplifiers and communal IRS systems, and we also install newer technologies such as Starlink and Freely TV.
If bad weather is disrupting your TV signal and you want fast, expert help, call us on 0800 802 1791.
