Boxt Discount Code – Save 12% in April 2026
Grab a verified BOXT discount code to shave hundreds off your new boiler—plus get a fixed-price quote and next-day installation in just 90 seconds.
Save at Boxt: Get a Boiler Subscription From £33.35 Per Month
How to redeem a promo code at Boxt
- Choose your boiler and installation options on the BOXT website to reach the final Booking stage.
- Locate the Total fixed price sidebar on the right-hand side of the screen.
- Find the text box labeled Enter your promo just below the price breakdown.
- Type or paste your discount code into this box.
- Click the Apply button to update your total and see your savings deducted from the final price.
Promo Code Tip: Make sure to apply your code before proceeding to the final payment, as BOXT only allows one promo code to be used per order and cannot usually apply them retrospectively once the booking is confirmed.
James’ Boxt Boilers Saving Tips
- Ask for a price match: Boxt promises to beat any like-for-like price, helping you secure the best deal. Compare your chosen boiler on sites like Heatable, iHeat, or Warmzilla — then ask Boxt for a price match. It’s a simple way to guarantee you’re getting the cheapest possible price on your new boiler.
- Use a discount code: Boxt regularly runs discount code deals and free accessory offers, including popular extras like a free Hive Thermostat. These limited-time deals can add serious value to your purchase, so it’s worth checking the latest offers before you buy. Savings can range from £50 to 10%.
- Use the BOXT emergency services discount: NHS staff, police officers, and armed forces personnel can unlock an exclusive £60 discount, helping reduce the cost of installation and upgrades on selected boilers.
- BOXT bundled deals: Maximise your savings with BOXT boiler bundles, combining a new boiler with valuable extras like smart thermostats, anti-scale devices, and essential add-ons — all for less than buying separately. Keep an eye out for limited-time bundle promotions to unlock even bigger savings.
- Go for a Cashback reward: Use a cashback website to claim a reward on your boiler installation (typically around £65).
About BOXT
BOXT streamlines the process of upgrading your home’s heating and energy systems by providing next-day installations at a guaranteed fixed price. You can select from a wide range of solutions, including A-rated new boilers complete with annual servicing and unlimited repairs for total reliability. Beyond heating, BOXT offers sustainable technology like solar panels, battery storage, heat pumps, and EV charging points, all of which are fully fitted and guaranteed to give you complete peace of mind.
