Windsor and Maidenhead

At a glance

Type

Unitary authority

ONS code

E06000040

Area

198 km²

Region

South East

Fire and rescue

Royal Berkshire

Police

Thames Valley

Emergency planning partnership

Thames Valley Local Resilience Forum

Largest built-up areas

Maidenhead, Ascot, Windsor and Old Windsor and Wraysbury

Council emergency pages

• Council website rbwm.gov.uk
• Emergency planning Emergency Planning Service (rbwm.gov.uk)
• Gritting and winter roads Winter services (rbwm.gov.uk)
• Current emergencies and severe weather Same page as above.

Councils announce rest centres, road closures and emergency help on these pages and their social media. Find your council by postcode (GOV.UK).

Power cuts

Report a power cut or check one: call 105 free from any phone, or use the operator’s website.

Network operator (not your supplier):

• Scottish and Southern Electricity Networks (Southern England)

Ofgem’s figures for the whole licence area, April 2024 to March 2025, counting cuts of 3 minutes or longer:

• Southern England (Scottish and Southern Electricity Networks): 41.8 interruptions per 100 customers and 51.2 minutes without power per customer (2023/24: 51.3 and 57.6)

Great Britain as a whole: 39.7 and 35.1. These are area averages, not figures for Windsor and Maidenhead alone. About this dataset

Flooding

Environment Agency: 9 flood alert areas and 20 flood warning areas overlap Windsor and Maidenhead. Waters named: The Cut, River Thames, Colne Brook, Chertsey Bourne, The Moat, Moat.

Warning areas include: Colne Brook at Colnbrook; Cut at Ryehurst Lane, Westley Mill and Paley Street; Cut at the Binghams; Moorings and properties closest to the River Thames between Maidenhead, Windsor and Eton; Properties closest to the River Thames at Datchet from Black Potts Bridge to Albert Bridge; Properties closest to the River Thames at Old Windsor, from Friday Island to Magna Carta Island; Properties closest to the River Thames at Wraysbury from Old Windsor Weir to Magna Carta Island; Properties closest to the River Thames from All Saints Church, Bisham to Little Marlow; and 12 more.

Check for flooding now · Sign up for free flood warnings (GOV.UK). Floodline: 0345 988 1188.

Weather warnings

The Met Office issues yellow, amber and red warnings for rain, wind, snow, ice, fog, thunderstorms and extreme heat. Current Met Office warnings (choose South East on the map) · What the colours mean

Health: NHS help and the nearest A&E

For urgent medical help that is not life-threatening, use NHS 111 online or call 111. Find urgent and emergency care services · Find NHS services near you (NHS website)

The nearest type 1 (major) A&E departments to the centre of each of the largest built-up areas, by straight-line distance (as the crow flies, not by road):

• Maidenhead: Wexham Park Hospital (10.7 km); Royal Berkshire Hospital (17.7 km); Hillingdon Hospital (18.5 km).
• Ascot: St Peter's Hospital (9.6 km); Frimley Park Hospital (10.8 km).
• Windsor: Wexham Park Hospital (7.8 km); St Peter's Hospital (13.4 km).

We have not found an open official list of urgent treatment centres and minor injury units for England, so they are not shown here.

About this dataset

Never Caught Out is not affiliated with the NHS.

Water supply

More than one company supplies parts of Windsor and Maidenhead:

• South East Water (about 59% of the area) · Water latest
• Affinity Water (about 24% of the area) · Supply interruptions
• Thames Water (about 17% of the area) · Network latest

To report no water, low pressure or a burst main, use the company’s page above. Your water bill names your supplier.

Water resource zones covering Windsor and Maidenhead: Bracknell (4) (South East Water, about 59% of the area); 6 Wey (Affinity Water, about 19% of the area); Slough Wycombe Aylesbury (Thames Water, about 17% of the area); 4 Pinn (Affinity Water, about 5% of the area). What a water resource zone is

What to do when the water goes off

Local risks and emergency planning

• Flooding: 20 flood warning areas and 9 flood alert areas overlap the council area (details above).
• Thames Valley Local Resilience Forum publishes a community risk register: the official list of emergencies that planners prepare for here. The register document.
• Hazards the register names include (our grouping of its wording): Flooding; Cyber attacks; Industrial and chemical accidents; Animal disease; Storms and severe weather; Pandemic; Snow and low temperatures; Telecoms failure; Transport accidents; Heatwaves; Outbreaks of infectious disease; Power cuts; Fuel shortages; Drought; Loss of water supply; Wildfires. Open the register for how likely and how serious each one is judged to be.
• Sandbags and flood help: Flooding | Extreme weather | Royal Borough of Windsor and Maidenhead (the council’s own page; councils differ on whether they supply sandbags, so check what it says).

We list only what official sources say. We do not rate how safe or risky anywhere is.

Map

Phone and broadband coverage

Ofcom’s predictions of normal coverage in Windsor and Maidenhead, January 2026. They are not live outages and not a guarantee for any address.

• Homes and businesses with 4G indoors from all four networks: 97%; from none: less than 0.1%.
• Outside homes and businesses, 4G from all four networks: 100%; from none: 0%.
• Land area with outdoor 4G from all four networks: 99%; from none: 0%.
• Premises that can get gigabit-capable broadband: 86%.
• Premises that cannot get decent broadband (10 Mbit/s down, 1 Mbit/s up) from a fixed line or fixed wireless: 16 (0%).

Check an address on Ofcom’s coverage checker · Phones when the network is down: how to reach 999 · About this dataset

Local radio

BBC Radio Berkshire

This is the BBC station for the county or area, from the BBC Sounds station list. Coverage overlaps council boundaries, so tune to whichever station you receive.

Census 2021: planning prompts

• Households with no car or van: 12.7%
• Residents aged 65 or over: 18.5%
• Households of one person aged 66 or over: 12.5%

Who would fetch food or medicines for you or a neighbour on icy or flooded roads, and who would you check on in a power cut? Ask your pharmacist about repeat prescriptions before bad weather.

Largest built-up areas

• Maidenhead
  • River Thames at Maidenhead to Windsor and Eton
  • Moorings and properties closest to the River Thames between Maidenhead, Windsor and Eton
• Ascot
• Windsor
  • Properties closest to the River Thames at Old Windsor, from Friday Island to Magna Carta Island
  • River Thames at Old Windsor
  • Properties closest to the River Thames at Wraysbury from Old Windsor Weir to Magna Carta Island
• Old Windsor and Wraysbury

Other built-up areas include Cookham, Datchet, Eton, Hurley (Windsor and Maidenhead), Waltham St Lawrence and Burchett's Green.

Neighbouring councils

Bracknell Forest, Slough, Wokingham, Buckinghamshire, Runnymede, Spelthorne, Surrey Heath

Guides for any emergency

• Power cut: call 105 free. Priority Services Register · Compensation calculator
• Power cuts
• First hour of a power cut
• Flooding
• Flood alerts and warnings
• Storms
• Cold weather
• Grab bag and evacuation
• Emergency Alerts
• A battery or wind-up radio keeps working in a power cut.
• All council pages in England · All UK council pages