Is Your Home Eligible For A Fully Funded Air Source Heat Pump?

We’re Proud to Offer Qualified Homeowners A Fully Funded System

With government support via the Boiler Upgrade Scheme and Adlår’s integrated system design, upgrading your heating is more accessible than ever.

Check your home and get an instant quote with £0 upfront for eligible households.

    What type of house do you live in?

    How many bedrooms does your home have?

    What is your homes current EPC rating?

    A few details

    Your contact details

    6kW Aurora II

    10kW Aurora II

    14kW Aurora II

    14kW + 6kW Aurora II

    14kW + 10kW Aurora II

    14kW + 14kW Aurora II

    120L Fjord Cylinder

    200L Fjord Cylinder

    300L Fjord Cylinder

    Standard Installation

    £0

    Our standard installation package criteria are as follows;

    • Aurora II floor mounted <5m away from existing boiler flue. External pipework in trunking.
    • Fjord Cylinder location in existing cylinder cupboard with hot & cold feeds and pressure release drainage already present.
    • 160mm cylinder ventilation already present.
    • All electrical works included.
    • No radiator or emitter upgrades.
    • Grant Approval.
    • Adlår’s team undertake the home energy assessment and heat loss report.

    Any additional works are subject site survey and heat loss results. Conditions Apply

    Why most heat pump systems fall short and why ours doesn’t

    Most systems try to make one unit do everything.

    That means:

    • Heating stops when hot water runs
    • Efficiency drops
    • Comfort becomes inconsistent

    Adlår takes a different approach.

     

    A system designed properly from the start

    • One system dedicated to heating
    • One system dedicated to hot water
    • Both working together, without compromise

    Stage 1:

    Home Energy Assessment

    We begin with an initial call where one of our energy consultants discusses your energy needs and sets up a home survey. During the home visit, our expert evaluates your current heating system, insulation, and energy usage to recommend the perfect renewable solution for your home.

    Stage 2:

    Make A Difference

    Once you have decided to install an air source heat pump, our specialists support you every step of the way, from securing government grants to safely decommissioning your old system. We manage the entire dual heat pump design, manufacturing, and installation process under one roof, making it as simple and stress-free as possible to significantly reduce your CO₂ emissions with our greener heating solution.

    Stage 3:

    The Castra Community

    When your system is up and running, you become part of the Castra Community. We offer a fully comprehensive guarantee and extended warranty on the entire Adlår system (covering all parts and labour) for lasting peace of mind.

    Why More Homeowners Are Switching to Adlår Castra

    Because Adlår doesn’t just install heat pumps — we design, manage, and stand behind complete systems that perform.
    Our dual heat pump approach, in-house delivery, and end-to-end project management ensure every installation is thorough, professional, and fully accountable — resulting in reliable comfort, predictable costs, and long-term confidence.

    Award Winning Heat Pump Specialists

    Smart App Control, Smart Tariffs

    Made For
    UK Homes

    15-Year
    Warranty

    You’re not choosing an installer. You’re choosing a system partner.

    Most companies install equipment and move on. We design, deliver, and stand behind the system long-term.

    • Designed specifically for your home
    • Installed to engineering standards
    • Commissioned for real-world performance
    • Backed by our Warmth Guarantee

     

    If it doesn’t perform as designed, we fix it at no extra cost

    Real homes. Real outcomes.

    Daniel Davidson
    Daniel Davidson
    Couldn't rate the experience of Adlar Castra highly enough. From initial meeting through installation and after care it has been fantastic. Prompt and knowledgeable response to any questions we had and one year after installation the whole system has run perfectly.
    Mike Batey
    Mike Batey
    The installation team (Nathan, Jack and Mo) did a fantastic job, a very neat install, friendly team and real care was taken in the house. We had a small problem with the water heater tripping of the old wiring - this was sorted out the same day with a new feed from the board upstairs.
     James Aufenast
    James Aufenast
    Janos was incredibly helpful, advising us on how to overcome a serious issue with the tank and then returning with the necessary part to fit and make good. We really happy with his work and I highly recommend him for any future installations or projects.
     Matthew Cousins
    Matthew Cousins
    Over the past few days I have had the pleasure of Yanos, Elsie, Nathan and Mo installing my Castra Adler air source heat pump and ASHP hot water cylinder. Both items had difficult challenges to overcome and they worked through these without fuss and also managed to complete the job on time
    Simon Renn
    Simon Renn
    Adlår Castra sent Connor and Janos to add enclose the external pipe work on our ASHP. They worked hard, did a really smart job and cleaned up afterwards. They were both friendly and professional. Very happy to recommend them.
    Mo Buch
    Mo Buch
    First year service. Professional, helpful and friendly. Highly recommended. Many thanks.
    Greg Megg
    Greg Megg
    Adlår Castra cant recommend them enough! What an amazing team. Adlår are new to the UK and a dual heat pump meaning you are able to run heating and hot water independently. The lads were here on time both days and very conscientious while doing the installation. Will be telling everyone about Adlår Castra.
    Charlie Faulkner
    Charlie Faulkner
    Friendly Install team, managed to complete the job in 2days as planned with the preinstall team! System runs perfectly and would recommend highly.
    Steve Morrall
    Steve Morrall
    I have an Adlar Castra Fjord ASHP water tank in the loft, installed just over a year ago. Yesterday, whilst up in the loft to collect suitcases for a trip I noticed a small amount of water underneath the tank. I emailed Adlar and less than 24 hours later an engineer called this morning to check out the problem...

    Air Source Heat Pump Cost FAQs

    The average cost of an air source heat pump in the UK ranges from £10,000 to £14,000, including installation. However, with Adlår’s direct-to-consumer model and the £7,500 BUS grant, your total cost could be significantly lower.

    Our calculator provides a personalised estimate based on your property size, insulation, and heating demand. While it’s a strong starting point, a free home survey is the best way to confirm final pricing and savings potential.

    A sizing calculator estimates the heating output (in kW) your home requires. This helps ensure the system is neither too large (wasting energy) nor too small (underperforming). Our calculator includes sizing analysis to ensure your Adlår system is just right.

    Running costs depend on:

      • Electricity prices
      • System efficiency
    • Your heating habits

    On average, an Adlår heat pump could cost £500–£900 per year to run, compared to £1,500+ for oil or electric systems — a potential saving of £1,000+ per year.

    The BUS grant provides £7,500 off the installation cost of an air source heat pump for eligible homes. Adlår handles the entire application on your behalf — reducing hassle and speeding up approval.

    Not at all. Heat pumps require less maintenance than boilers, usually just one annual service. Adlår offers affordable maintenance plans and priority servicing from our in-house team.

    Not always. Many homes can install a heat pump without major upgrades. During your consultation, we assess your home's insulation and radiators to determine what’s needed, if anything, to ensure peak performance and short ROI.

    Absolutely. Our air source heat pump cost calculator is designed for homeowners at any stage. Whether you're comparing systems, checking eligibility, or just exploring options — it's a great way to understand your potential costs and savings.

      What type of house do you live in?

      How many bedrooms does your home have?

      What is your homes current EPC rating?

      A few details

      Your contact details

      6kW Aurora II

      10kW Aurora II

      14kW Aurora II

      14kW + 6kW Aurora II

      14kW + 10kW Aurora II

      14kW + 14kW Aurora II

      120L Fjord Cylinder

      200L Fjord Cylinder

      300L Fjord Cylinder

      Standard Installation

      £0

      Our standard installation package criteria are as follows;

      • Aurora II floor mounted <5m away from existing boiler flue. External pipework in trunking.
      • Fjord Cylinder location in existing cylinder cupboard with hot & cold feeds and pressure release drainage already present.
      • 160mm cylinder ventilation already present.
      • All electrical works included.
      • No radiator or emitter upgrades.
      • Grant Approval.
      • Adlår’s team undertake the home energy assessment and heat loss report.

      Any additional works are subject site survey and heat loss results. Conditions Apply

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      Want a Fully Funded Heat Pump?

      Want a Fully Funded Heat Pump?