Get a fixed price quote on your new Viessmann boiler with next day installation

The cost of a new boiler installation typically ranges from £1,500 to £3,500 depending on the type of boiler, your home requirements, and any additional work needed.

In many cases, our partner can arrange next-day installation if needed. Typically, most installations are completed within 3-5 working days from your enquiry.

Yes, all boiler installers are Gas Safe registered. Heatable verifies their credentials and insurance before they can join their network.

All boilers come with a manufacturer's warranty of at least 5 years, with premium options offering up to 12 years of protection for your peace of mind.

Heatable allows you to pay upfront by card, securely or spread the cost over 1–4 years at 0% APR.

Heatable has grown to become the UK's third largest boiler installer. Their commitment to strong values and high standards is reflected in over 10,000 five-star reviews from satisfied customers. Every installation they carry out is backed by a 12-month workmanship warranty, ensuring peace of mind and quality service.

Every installation comes with a new boiler, controls (like thermostats), new pipework, a full system flush, filter, flue, recycling of your old boiler and aftercare.

Discount codes are only valid until 31st October. Codes cannot be used in conjunction with any other discount codes or third-party promotions. The offer can only be applied against the gross sales price of the package including installation and cannot be exchanged for other goods, services or cash value. In order to redeem, the discount code must be used prior to any payment transaction including a deposit, full payment or finance application. £150 discount can only be applied to boiler installation purchases, £250 to battery storage installation purchases and £400 to Solar PV installation purchases, they cannot be swapped or used together. Discounts cannot be retrospectively applied or claimed in any manner. Where a finance product is used to fascinate payment, the discount amounts will be deducted from the gross sales volume prior to a financial agreement being used. Discounts cannot be applied against monthly payment amounts. Heatable Ltd are a broker, not a lender and authorised and regulated as such under the Financial Conduct Authority. Finance is subject to status and credit searches. Applicants must own their home, be over 18 years old, a UK resident of at least 3 years and have employment or lender satisfactory income. For the full terms, visit the Heatable website.

Offers are available to UK residents aged 18+ and valid only within the stated period. Each offer applies solely to the specified product(s) or service(s), with exclusions and redemption methods (e.g. promo code, referral link, or automatic checkout application) set out in the individual offer. One redemption per purchase unless otherwise specified. Offers are subject to product/service availability, standard lead times, and cannot be combined with other promotions unless expressly stated. Savings are based on the standard RRP or selling price as of the clearly stated date, inclusive of VAT. No cash alternatives are offered. WarmZilla reserves the right to amend or withdraw any offer if unavoidable circumstances occur. Finance is available subject to status, affordability, and credit checks. WarmZilla Limited, registered in England & Wales (Company No. 09301554, VAT No. 304870905), is authorised and regulated by the Financial Conduct Authority (FRN 815093) for credit broking (not lending) and provides credit products through a panel of lenders.