British Gas Scottish Power (September 2026)
Overview
There is no single best choice: compare price, service, app and green-energy evidence separately.
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Tariffs and pricing
Annual estimates use the stored consumption assumptions. Check current regional rates, terms and eligibility before switching.
Customer reviews
Each review service uses its own method and scale, so the measures below should be read separately.
App quality and features
App-store scores are shown by platform. No winner is declared where either ratings sample is missing or too small.
Customer service and support
Only like-for-like service measures with data for both suppliers are ranked.
Complaints and performance
Complaint figures are shown with each supplier’s reporting period. No winner is declared when periods differ or one figure is missing.
Green Energy Comparison
Published fuel-mix figures are shown only where both a source URL and reporting period are present in the stored data.
Our verdict
| If you care most about | Choose |
|---|---|
| The lowest annual cost on our assumptions | British Gas |
| Overall customer service | Scottish Power |
| A well-rated mobile app | Scottish Power |
| A greener fuel mix | British Gas |
There is no single best choice: compare price, service, app and green-energy evidence separately.
Use the decision table to match the available evidence to the factors that matter most to your household.
- Cheapest variable tariff at £1,551 / year
- 4.5 Trustpilot from 353,681 reviews
- iOS app rated 4.5 out of 5
- 98% of emails answered within 2 days
- Cheapest overall tariff carries a £50 exit fee
- 20% of Trustpilot reviews are 1-star
- 16% of Google Play ratings are negative
- Cheapest variable tariff at £1,611 / year
- 4.4 Trustpilot from 203,838 reviews
- iOS app rated 4.8 out of 5
- 94% of emails answered within 2 days
- 19% of Trustpilot reviews are 1-star
Frequently asked questions
Which is cheaper, British Gas or Scottish Power?
On the stored annual-cost assumptions, British Gas is £1,551 and Scottish Power is £1,611. British Gas is lower by about £60 a year.
Can British Gas and Scottish Power complaint rates be compared directly?
No direct complaint-rate winner is declared because British Gas and Scottish Power do not both have figures for the same stated reporting period.
Which supplier leads on customer service?
On the comparable customer-service measure used in the decision table, Scottish Power leads.
Which supplier has the better app evidence?
On the comparable app measure used in the decision table, Scottish Power leads.
Do tariff eligibility rules matter?
Yes. Specialist, time-of-use, EV, heat-pump and export tariffs can have equipment, meter or account requirements. Check the current supplier terms before applying.
Which supplier has the greener evidence?
On the comparable green-energy measure used in the decision table, British Gas leads. This row is based on published fuel-mix percentages.
Which is better overall, British Gas or Scottish Power?
There is no single overall winner in this repaired draft. Price, service, app and green-energy evidence are kept as separate choices in the decision table.
When was this comparison updated?
The structured source payload is for September 2026.
What changed this month
This month, Scottish Power's iOS sampled positive reviews rose from 1 to 3, British Gas's fixed tariffs available rose from 1 to 3, and Scottish Power's iOS sampled reviews avg stars rose from 2.33 to 6. There were 30 other data changes this month — see the full changelog below for details.
Data changes this month (42)
British Gas
- Trustpilot rating4.4 → 4.5
- Trustpilot reviews350,018 → 353,681
- Trustpilot 5-star %65 → 66
- Trustpilot 3-star %4 → 3
- Trustpilot positive reviews %73 → 74
- Trustpilot neutral reviews %4 → 3
- Trustpilot net-positive %50 → 51
- iOS app ratings count13,000 → 14,000
- iOS app days since last update9 → 15
- iOS sampled reviews avg starsnow available (1.67)
- iOS sampled negative reviews0 → 3
- Play Store rating4.0881915 → 4.1812863
- Play Store ratings count13,409 → 13,701
- Play Store days since last update10 → 18
- Play Store positive ratings %77.4 → 80.1
- Play Store negative ratings %19.1 → 16.4
- Play Store net-positive %58.3 → 63.7
- Avg social media response timenow available (55)
- Cheapest variable tariff£1,744.71 → £1,550.78
- Cheapest fixed tariff£1,833.95 → £1,649.29
- Cheapest tariff£1,744.71 → £1,550.78
- Cheapest fixed tariff exit fee£150 → £200
- Cheapest fixed tariff term24 months → 21 months
- Tariff count3 → 5
- Fixed tariffs available1 → 3
- Shortest fixed term24 months → 21 months
Scottish Power
- Trustpilot reviews198,589 → 203,838
- Trustpilot negative reviews replied %91 → 92
- iOS app ratings count86,000 → 87,000
- iOS app days since last update26 → 28
- iOS sampled reviews avg stars2.33 → 6
- iOS sampled positive reviews1 → 3
- iOS sampled negative reviews2 → 0
- Play Store rating4.7281113 → 4.731496
- Play Store ratings count95,532 → 96,905
- Play Store days since last update27 → 28
- Play Store positive ratings %94.2 → 94.3
- Play Store neutral ratings %1.3 → 1.2
- Play Store net-positive %89.7 → 89.8
- Cheapest variable tariff£1,804.74 → £1,610.81
- Cheapest fixed tariff£1,990.1 → £1,829.85
- Cheapest tariff£1,804.74 → £1,610.81
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Scottish Power Review
Annual estimates use the stored consumption assumptions. Check current regional rates, terms and eligibility before switching.
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British Gas Review
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Written by
Rob Gibbs
Hi, I'm Rob, and I run Energy-Review.co.uk. I initially started this project in 2018 when I was looking to switch energy suppliers and found there wasn't a website that provided simple, data-backed reviews on all the suppliers available. Since then, I have spent a lot of time (too much, some may say!) looking at all publicly available data about each supplier and writing reviews using this information. These reviews are updated as regularly as possible, and any data is backed up by a source where necessary. I have also started writing guides on various energy-related topics, which hopefully you will find useful. If you find any issues, please use our contact form to let us know.