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Energy Review
Supplier comparison

British Gas vs Tulo Energy (September 2026)

Overview

Our verdict
Too close to call

There is no single best choice: compare price, service, app and green-energy evidence separately.

Trustpilot
British Gas
4.5
353,681 reviews
Tulo Energy
4.6
822 reviews
Citizens Advice rank
British Gas
#13
Tulo Energy
N/A
Cheapest variable
British Gas
£1,551
/year
Tulo Energy
£1,611
/year
iOS app
British Gas
4.5
14,000 ratings
Tulo Energy
5
2 ratings
Affiliate
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Use our referral link, and we'll both get £50 credit once your switch is complete.

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Tariffs and pricing

British Gas
CHEAPEST
VARIABLE
Cap Tracker Plus Sep27 v1
£1,551/year
No fixed term · Variable rates can change · Exit fee £50
Best for: customers who accept a £50 exit fee to leave
FIXED 21M
Fix and Boiler Bonus v14
£1,649/year
21-month term · Exit fee £200
Best for: price certainty
Tulo Energy
VARIABLE
Tulo Vari-One
£1,611/year
No fixed term · Variable rates can change
Best for: maximum flexibility

Annual estimates use the stored consumption assumptions. Check current regional rates, terms and eligibility before switching.

Customer reviews

Trustpilot
British Gas4.5 / 5
Tulo Energy4.6 / 5
Citizens Advice
British Gas#13
Tulo EnergyN/A
Which?
British Gas59 %
Tulo EnergyN/A %

Each review service uses its own method and scale, so the measures below should be read separately.

App quality and features

App Store
British Gas4.5 · 14,000 reviews
Tulo Energy5 · 2 reviews
Google Play
British Gas4.18 · 13,701 reviews
Tulo Energy3.13 · 8 reviews

App-store scores are shown by platform. No winner is declared where either ratings sample is missing or too small.

Service and support

Citizens Advice rank
British Gas
#13
Tulo Energy
N/A
Citizens Advice score
British Gas
2.61
out of 5
Tulo Energy
N/A
out of 5
Emails ≤2 days
British Gas
98%
Tulo Energy
N/A
Avg call wait
British Gas
51 sec
Tulo Energy
N/A
ChannelBritish GasTulo Energy
PhoneWeekdays 8am–6pm, open Saturday 9am–2pm, closed Sunday
Email24/7
Social mediaBusiness hrs

Only like-for-like service measures with data for both suppliers are ranked.

SourcesChecked 1st September 2026
  1. Citizens Advice (British Gas)

Complaints and performance

Per 100k customers
British Gas
944
Q2 2026
Tulo Energy
N/A
CA per 10k
British Gas
68.7
Citizens Advice
Tulo Energy
N/A
Citizens Advice
Resolved same/next day
British Gas
43%
Tulo Energy
N/A
Resolved ≤8 weeks
British Gas
86%
Tulo Energy
N/A

Complaint figures are shown with each supplier’s reporting period. No winner is declared when periods differ or one figure is missing.

British Gas — complaint themes
Billing
51%
We focus on delivering quality service to our customers, ensuring they are billed accurately and in a timely manner as well as making sure our teams are equipped with the right tools to be able to support and help customers through to a swift resolution when they contact.
Payments
20%
We're improving our refund processes to ensure customers receive their money back more quickly when they've been paying too much.
Credit Management
12%
Reported complaint category for Q2 2026.
Customer Service
8%
We continue to make significant investment into our customer service operation recruiting more front-line agents again this quarter to support our customers. We ask our customers for feedback after our interactions which helps us understand how customers are feeling and respond where necessary. We have achieved a strong Net Promoter score of +34 this quarter which means that 58% of our customers rate us as happy.
Metering
4%
We continue to invest in Smart meters, providing meters to those who want them as well as fixing issues with existing meters or the In-House Display units.
Tulo Energy — complaint themes
No complaint-reason breakdown was available in the supplied data
SourcesChecked 1st September 2026
  1. Supplier performance page (British Gas)

Green Energy Comparison

British Gas
20%Renewable
January to March 2026
Renewable20%
Nuclear57%
Fossil fuel21%
Other2%
Tulo Energy
Fuel mix not published

Published fuel-mix figures are shown only where both a source URL and reporting period are present in the stored data.

Our verdict

Which should you choose?
If you care most aboutChoose
The lowest annual cost on our assumptionsBritish Gas
Our verdict
Too close to call

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.

British Gas
Pros
  • 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
×Cons
  • Cheapest overall tariff carries a £50 exit fee
  • 20% of Trustpilot reviews are 1-star
  • 16% of Google Play ratings are negative
Tulo Energy
Pros
  • Cheapest variable tariff at £1,611 / year
  • 4.6 Trustpilot from 822 reviews
×Cons
  • 38% of Google Play ratings are negative

Frequently asked questions

Which is cheaper, British Gas or Tulo Energy?

On the stored annual-cost assumptions, British Gas is £1,551 and Tulo Energy is £1,611. British Gas is lower by about £60 a year.

Can British Gas and Tulo Energy complaint rates be compared directly?

No direct complaint-rate winner is declared because British Gas and Tulo Energy do not both have figures for the same stated reporting period.

Which supplier leads on customer service?

The supplied data does not support a like-for-like customer-service winner.

Which supplier has the better app evidence?

The supplied data does not support a like-for-like app winner.

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?

The supplied data does not support a like-for-like green-energy winner. This row is based on published fuel-mix percentages.

Which is better overall, British Gas or Tulo Energy?

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, British Gas's fixed tariffs available rose from 1 to 3, British Gas's iOS sampled negative reviews rose from 0 to 3, and British Gas's play store days since last update rose from 10 to 18. There were 24 other data changes this month — see the full changelog below for details.

Data changes this month (32)

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Rob Gibbs

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.

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