Top 5 British Gas Alternatives for 2026 (Save up to £1,000)

Tired of high prices, slow home visits, and legacy service? You are not alone. Many homeowners are switching to modern online installers to save money.

Why switch?

British Gas quotes are often 30-40% higher than the market average for the exact same Worcester Bosch boiler. By switching to an online installer, you can get the same hardware, faster, for less.


#1 Recommended

1. WarmZilla

Best Value & Speed

Where British Gas is slow, WarmZilla is instant. They stripped out the expensive salespeople to offer a fixed price online in 2 minutes.

  • Best Price Guarantee
  • Next Day Installation
  • Founded by Gas Engineers
  • 0% Finance Available

The Verdict: The smartest financial choice for replacing a British Gas quote.

2. BOXT

BOXT is the largest online installer in the UK. Their logistics are impressive, offering a slick website and fast delivery similar to Amazon.

However, while they are excellent at logistics, their support is often limited to standard working hours.

BOXT is primarily a technology retailer. WarmZilla was founded by Gas Engineers.
This means WarmZilla’s support team is trained to understand heating systems, not just process orders. When you have a technical question, you are more likely to get a technical answer.

3. iHeat

Another solid online alternative. They offer good finance packages and a simple checkout.

In our price checks (Jan 2026), they were often slightly more expensive than the market leader for the equivalent Worcester Bosch 4000 model.

4. Trusted Local Installer

Another solid online alternative. They offer good finance packages and a simple checkout.

In our price checks (Jan 2026), they were often slightly more expensive than the market leader for the equivalent Worcester Bosch 4000 model.

Summary Comparison

WarmZilla

24 Hours

British Gas

1-3 Days + Visit

BOXT

24 Hours

Good

Local Trader

Varies

Good