Cheapest fixed energy tariff for a 1 bed flat in the UK
Find fixed deals suited to typical 1 bed flat usage (not business). Compare whole-of-market options by postcode and see what “cheap” really means once standing charges, payment method and meter type are included.
- See fixed tariffs available for your exact postcode and meter type
- Understand total monthly cost (unit rates + standing charges)
- Know what to check: exit fees, contract length, and eligibility
Estimates only. Availability and prices vary by region, meter type and payment method. Compare using your postcode for accurate options.
Fast answer: what’s the cheapest fixed energy tariff for 1 bed flat UK?
The cheapest fixed energy tariff for 1 bed flat UK is the fixed deal with the lowest estimated annual cost for your postcode once unit rates and standing charges are combined. Because prices vary by region, meter type and payment method, the only reliable way to identify it is to compare live fixed tariffs using your postcode and current usage.
Key takeaway 1
“Cheapest” for a flat is usually about total cost, not the lowest unit rate. Standing charges can make a big difference on low usage.
Key takeaway 2
Fixed tariffs can include exit fees and may be poor value if prices fall. Always check contract length and fees before committing.
Key takeaway 3
Your meter type (single-rate, Economy 7, smart meter, prepay) changes what fixed tariffs you can access and how “cheap” looks.
Compare fixed tariffs for a 1 bed flat (postcode-based)
To find the cheapest fixed tariff for a 1 bed flat, you need to compare on the same inputs suppliers use to price you:
- Postcode (region affects network costs and standing charges)
- Fuel type (electric-only flats vs dual fuel: gas + electricity)
- Payment method (direct debit vs prepayment can change available deals)
- Meter type (single-rate, Economy 7, smart, prepay)
- Estimated usage (kWh/year) or recent bills
Get a fixed-tariff quote (2–3 minutes)
Enter your details to see fixed tariffs available for your postcode. We’ll show estimated total costs based on the information you provide.
What a 1 bed flat typically pays on a fixed tariff (and why it varies)
Even for the same size flat, total bills can differ a lot due to insulation, heating type (gas boiler vs electric heaters), how many people live there, and how long you’re home. Fixed tariffs also price differently by region and meter setup.
Scenario A: all-electric 1 bed flat (lower usage)
A single occupant in a well-insulated flat with modern appliances and careful heating.
- Assumed fuel
- Electricity only
- Assumed annual usage
- ~1,800–2,500 kWh electricity (estimate)
- What matters most
- Standing charge + single-rate vs Economy 7 fit
Scenario B: gas + electric 1 bed flat (higher heating demand)
Two occupants, home more often, gas boiler for heating/hot water.
- Assumed fuel
- Dual fuel (gas + electricity)
- Assumed annual usage
- ~2,000–3,100 kWh electricity + ~6,000–9,000 kWh gas (estimate)
- What matters most
- Total annual cost across both fuels + exit fees
These scenarios are illustrative only. Your cheapest fixed tariff may differ even with similar usage because regional charges and supplier availability vary. Compare with your postcode for accurate estimates.
Fixed tariff comparison: what to look at (not just the headline rate)
Use this table to judge whether a fixed tariff is genuinely “cheapest” for your 1 bed flat. It focuses on the checks that most often change the outcome for flats.
| What you’re comparing | Why it matters for a 1 bed flat | What to do |
|---|---|---|
| Estimated annual cost | This is the best single “cheapest” indicator because it combines unit rates and standing charges. | Compare costs using the same usage across tariffs. |
| Standing charge | Low-usage flats can feel standing charges more sharply. | Check it for each fuel, and note it varies by region. |
| Contract length | Short fixed deals offer flexibility; longer deals may provide budget certainty. | Pick a term that fits your tenancy and moving plans. |
| Exit fees | If you move out or want to switch early, exit fees can wipe out savings. | Check the fee per fuel and the conditions (supplier terms). |
| Payment method rules | Some fixed deals are only priced for certain payment methods. | Compare like-for-like: direct debit vs prepay. |
| Meter compatibility | Economy 7 and prepay meters can limit options and change costs. | Confirm your meter type (your bill usually states it). |
Quick decision checklist: fixed tariffs suit you if…
- You want budget predictability for a set term.
- You’re happy with the term length (common for renters: shorter terms).
- You’ve checked exit fees and they feel manageable.
- You have a clear sense of your usage (from bills or a recent reading pattern).
A fixed tariff may not suit you if…
- You expect to move soon and may need to switch early.
- You’re on very low usage and a higher standing charge could dominate your bill.
- You’re comfortable with price changes and prefer flexibility (for example, a variable tariff).
- Your meter type is unclear (risk of comparing the wrong options).
Costs, exclusions and common pitfalls (especially for flats)
These are the issues that most often stop a “cheap-looking” fixed deal being the cheapest once you live with it.
1) Standing charges can dominate low-usage bills
If you’re out most of the day or you’re a single occupant, standing charges can be a large share of your monthly cost. That’s why you should compare estimated annual cost rather than chasing a single cheap unit rate.
2) Exit fees and moving home
Many fixed deals include exit fees if you leave before the end of the term. If you’re renting and may move, weigh flexibility against the fixed price.
3) Economy 7 and day/night usage mismatch
If you have Economy 7 but most of your usage is during the day, a deal that looks good on paper may not suit you. Always compare using your actual (or best-estimate) split.
4) Prepayment and eligibility differences
If you’re on a prepay meter, the range of fixed tariffs may differ. Compare specifically for your payment method rather than assuming the same deals apply.
FAQs
What counts as a “fixed” energy tariff in the UK?
A fixed energy tariff is one where the unit rates and standing charges are set for an agreed period (for example, 12 months). You still pay more or less depending on how much energy you use. Fixed tariffs can include exit fees and other terms, so always read the tariff details.
Is the cheapest fixed tariff usually dual fuel or electricity-only for a 1 bed flat?
It depends on whether your flat has mains gas. If you’re electricity-only, you can only compare electricity tariffs, and the “cheapest” outcome is heavily influenced by electricity standing charge and your usage. If you have gas, comparing dual fuel can be convenient, but it isn’t automatically cheaper—compare total estimated annual cost.
Do fixed tariffs vary by postcode in the UK?
Yes. Electricity and gas costs can vary by region because of network charges and how suppliers price different areas. That’s why the same fixed tariff can cost different amounts in different postcodes, and why you should compare using your own postcode rather than relying on national averages.
Can I switch energy supplier if I rent a 1 bed flat?
In many cases, yes—if you’re the bill payer. However, your tenancy agreement may have conditions such as switching back to the original supplier when you leave. Always take opening and closing meter readings, keep confirmations, and check your tenancy terms before switching.
What details do I need to find the cheapest fixed tariff for my flat?
You’ll get the best result with your postcode, whether you want gas, electricity or both, your payment method (direct debit or prepay), your meter type (single-rate or Economy 7), and your estimated annual usage (or a recent bill). If you’re unsure, start with postcode and supplier details—your comparison can be refined.
Are exit fees always charged on fixed tariffs?
No. Some fixed tariffs have no exit fees, while others do. The amount and the rules vary by tariff and supplier, and may differ for gas and electricity. Always check the tariff terms before you switch, especially if you might move home or want the option to change again.
Is it better to fix energy prices when the Ofgem price cap changes?
Not always. The Ofgem price cap affects the maximum rates on standard variable tariffs for typical customers, but it doesn’t mean a fixed tariff will be cheaper. If you want certainty, fixing can help budgeting, but compare the estimated total cost and consider exit fees in case prices move in your favour later.
How long does an energy switch usually take in the UK?
Switching timescales can vary, but many switches complete within a few working days. You should not lose supply during a switch. Exact timelines depend on your supplier, meter setup and any outstanding issues (such as incorrect details), so check what you’re told during the application.
How we assess “cheapest” for a 1 bed flat (methodology)
Our approach
Because fixed tariffs vary by postcode, meter type and payment method, we do not publish a static list of “the cheapest” deals on this page. Instead, we explain the decision factors and direct you to compare live fixed tariffs using your postcode.
When we refer to “cheapest”, we mean the tariff with the lowest estimated annual cost for your specific circumstances, calculated from:
- unit rates (per kWh)
- standing charges (daily)
- your stated or estimated annual usage
- your region (from postcode)
- your meter type and payment method
Page details
- Written by
- EnergyPlus Editorial Team
- Reviewed by
- Energy Specialist
- Last updated
- August 2026
Sources (UK)
We aim to keep this guide accurate and practical. If you spot something that looks out of date, use the quote journey to view current tariff information for your postcode, as those results reflect live pricing and availability.
Ready to find your cheapest fixed tariff for a 1 bed flat?
Compare fixed tariffs available for your postcode and get an estimated total cost that includes standing charges. No guesswork, no generic averages.
Back to Energy Suppliers