Step‑by‑Step Guide to Switching Energy Suppliers
Step 1: Gather Your Energy Information
You’ll need your latest energy bill, which includes your annual usage in kilowatt‑hours (kWh) and details of your current tariff. This helps comparison tools like Energy Watch UK calculate accurate savings estimates.
Step 2: Compare Energy Deals
Use the Energy Watch UK comparison tool to review available tariffs. Simply enter your postcode and energy usage — you’ll instantly see the best fixed, variable, and green deals from top UK suppliers.
Step 3: Choose Your New Supplier
Review offers based on price, contract length, customer ratings, and whether you prefer green energy. Most households save between £150–£300 per year by choosing a cheaper tariff.
Step 4: Confirm Your Switch
Once you’ve chosen your new deal, complete the sign‑up form. Your new provider will handle all communication with your current supplier — there’s no need to contact them directly.
Step 5: Submit Your Meter Reading
Your new supplier will usually ask for a final meter reading. This ensures your old supplier produces an accurate final bill and closes your account correctly.
Step 6: Cooling‑Off Period
You’ll have a 14‑day cooling‑off period to change your mind. If you decide not to proceed, you can cancel without penalty.
Step 7: Your Switch Is Complete
After the cooling‑off period, your new supplier will take over your account. You’ll receive confirmation emails, your first bill, and information about managing your account online.
How Long Does It Take to Switch Energy Supplier?
Most UK households now complete the entire switch within 3 – 5 working days. However, the exact time can vary depending on meter type and the cooling‑off period. You’ll receive regular updates from your new supplier to track progress.
Common Mistakes to Avoid
• Not checking exit fees from your current contract
• Using estimated readings instead of actual usage
• Forgetting to compare standing charges
• Overlooking smaller suppliers with competitive rates
• Ignoring green tariffs that may offer added value
Why Use Energy Watch UK?
Energy Watch UK makes switching simple. Our free comparison tool lets you see the latest tariffs from in seconds. No hidden fees, no confusing jargon — just a clear view of your best options. We’re here to help you switch with confidence and start saving money fast.
Final Thoughts
Switching your energy supplier in 2025 is quick, safe, and worthwhile. With rising prices and more suppliers back in the market, comparing deals every year ensures you never overpay. Start your comparison with Energy Watch UK today and find out how much you could save.
Frequently Asked Questions About Switching Energy Suppliers
How long does it take to switch energy supplier in 2025?
Most UK households can switch within 3 – 5 working days under Ofgem’s Faster Switching Programme. Your supply will not be interrupted at any point.
Will my energy be cut off during the switch?
No. Your energy supply continues as normal — only your billing and tariff change. The process is automatic and handled by your new supplier.
Do I need to contact my old supplier?
No. Once you confirm your switch, your new supplier takes care of everything — including notifying your old one and arranging your final bill.
Can I switch if I’m on a fixed tariff?
Yes, but check for exit fees. Many suppliers charge around £30–£50 per fuel if you leave early. However, savings from switching may still outweigh the fee.
Can I switch if I’m in credit or debt?
If your account is in credit, your old supplier will refund you. If you’re in debt, you may still be able to switch if your debt is less than 28 days old. Otherwise, contact your supplier to discuss repayment options.
What’s the easiest way to switch suppliers?
The simplest way is to use the Energy Watch UK comparison tool. Enter your postcode and a few details to instantly view the best tariffs available in your area.
Do I need a smart meter to switch suppliers?
No — you can switch even if you don’t have a smart meter. However, smart meters make it easier to track your usage and may unlock additional tariff options.