Boxt Discount Codes & Deals for October 2026

1. Choose a Boxt promo code from NetVoucherCodes and select 'Copy'.
2. The Boxt website will open up ready for you to start browsing.
3. Find the products and services you wish to purchase and head to the checkout.
4. Paste you voucher codes into the box labelled 'Got a promo code'?.
5. Click 'apply' to see your savings!

I’d usually look at BOXT when I want to get a job sorted quickly rather than spend days chasing quotes.

The biggest draw for me is how straightforward it is. You answer a few questions online, get a fixed price, and can book installation without the usual back-and-forth. If I were replacing a boiler, that would be the bit that makes the biggest difference, especially when next working day installation is available.

It’s also one of those sites where the savings are not just about one promo code. I’d check the live offers first, then compare that with the Price Match Promise, because if there’s a like-for-like quote elsewhere, BOXT says it will beat it by £50. On a higher-value purchase, that’s a much more useful saving than a small code.

I also like that it’s not just boilers anymore. If you’re comparing air conditioning, heat pumps, EV chargers or solar, it’s all there in one place, which makes the site feel more useful if you’re doing a bigger home upgrade rather than one single fix.

Use the BOXT Price Match Promise before you book

• BOXT says it will beat a like-for-like installation quote by £50.
• This applies across products including boilers, air conditioning, heat pumps and EV chargers.
• It’s worth comparing quotes before checkout, especially on larger installations.

Use refer-a-friend if someone you know already uses BOXT

• Existing customers can get a £100 voucher by referring a friend.
• Referred customers can also get £100 towards their first BOXT purchase.
• This can be more valuable than a standard code on bigger installations.

Check the BOXT offers page first

• BOXT regularly lists live deals on its promos page.
• Current examples include Blue Light discounts, free Hive offers, and category deals across boilers, solar and heat pumps.
• It’s worth checking this before you rely on a single BOXT promo code.

Spread the cost with finance options

• BOXT offers finance on boilers and other larger installations.
• Useful if you want to secure a replacement quickly without paying everything upfront.
• This is especially helpful on urgent purchases like boiler replacements.

Spread the cost of your purchase

Boxt offers interest-free credit options on purchases, allowing you to spread the cost over time with no additional charges. This is a great way to make larger investments more manageable without paying more in the long run!

Enjoy Bundle Offers

Save money by bundling products and services at BOXT. You'll often find packages that include multiple services or products at a discounted rate compared to purchasing them individually. You may also be able to use a Boxt Boiler promo code alongside this for an even better deal!

Get Free Filters at BOXT

Boxt puts a free filter in every boiler they install, worth up to £130 RRP. These filter nasty bacteria and unwanted residue from the system water to protect the boiler and ensure it stays in top condition for much longer.

With Boxt's all-inclusive plan, you get a new A-rated boiler, annual servicing and unlimited repairs or a replacement from only £33.35 a month. Get your fixed monthly price online with no hidden costs or hassle. There are also no callout fees needed with your BOXT Life plan. Just contact the team and they'll send an engineer round for free. There's also no deposit required with this plan and you don't have to worry about price rises.

Order your boiler online by 3pm for next working day installation by one of their accredited engineers and control your boiler from their handy app. All of these boilers also come with a 10-year warranty and you can even get a free mini-Hive Thermostat with your boiler installation. Remember to also use a Boxt discount code on your order to save money on your Life Plan.

If you need a replacement urgently, speed usually matters more than waiting for a sale. But if you’ve got a bit of time, it’s still worth checking what live promotions are running before you book.

• BOXT’s promos page is the best place to check for current offers.
• Heating-related deals tend to matter most before colder months and during seasonal campaigns.
• For bigger home upgrades like solar, batteries or air conditioning, waiting for a live offer can make a bigger difference than a standard BOXT voucher code.