BOXT Discounts & Promo Codes
We know everyone loves a bargain, right? So check out our active promo codes and discounts across our product range below, so you can feel confident you're paying the best price possible for your installation.
Looking for a particular product offer? Use the links below...
Boilers
Boiler offers
Free boiler service plan for a year
Use code FREESERVICEPLAN when you buy a new boiler to get year's boiler service plan for free¹.
Boiler offers
Save £150 with the Smart Energy Bundle
Save £150 on the Worcester Bosch Greenstar 4000 and Bosch EasyControl thermostat - both with a 10 year manufacturer guarantee.
Boiler offers
Install date discounts
Save up to £150 on selected install dates at checkout
Boiler offers
Bluelight Card Discount
Bluelight Card holders can save £60 on new boiler installations
The BOXT Price Match Promise
With BOXT, you can rest assured that you’re always paying the best price. In fact, we promise that if you get a like-for-like installation quote that’s cheaper than ours, we’ll beat it by £50.
Air Conditioning
Air con offers
Bluelight Card Discount
Bluelight Card holders can save £60 on air conditioning installations
Join our thousands of happy customers
Solar panels, Heat pumps & Battery storage
Solar offers
Buy One Panel, Get One Free
With BOXT, for every panel you pay for, we'll give you one free
Heat pump offers
Boiler Upgrade Scheme
Eligible households can save £7,500 on heat pump installations, via the Boiler Upgrade Scheme
Battery storage offers
Up to £750 rebate on Tesla Powerwall 3
Get up to £750 rebate on Tesla Powerwall 3 installations.
Existing customers
Existing customer offers
Refer a friend
Refer a friend and they'll get £100 off their install, and you get a £100 voucher. It's win-win!
Existing customer offers
Returning customer discount
If you've bought from BOXT before, you can save £100 on your next install². Talk to our team to find out how to claim your discount.
¹Only one promo code can be used per order. Service Plan is free for 12 months then automatically renewed at £8.99 a month for homeowners or £11.99 for landlords, unless cancelled. Offer ends 31st March, 2026. Click here for full Terms & Conditions of Free Service Plan offer.
²Terms and Conditions apply to returning customer discount. Click here to learn more.