Heat pump installations are more complex than solar. The survey is more detailed, the design calculations are more involved, the grant paperwork is more demanding, and the MCS compliance standard (MIS 3005) requires specific documentation that solar standards do not. Your software needs to handle all of it, and most current options were designed for solar first and heat pumps second.
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The UK installed over 60,000 MCS-certified heat pumps in 2025, the highest annual figure ever recorded. The total number of certified heat pump installations across the UK has now surpassed 250,000. Over 2,000 contractors are MCS-certified for heat pump installation, with 387 new businesses gaining certification in 2024 alone.
The Boiler Upgrade Scheme (BUS) is the primary financial driver. It provides grants of up to £7,500 for air-to-water, ground source, and water source heat pumps in residential properties. From April 2026, air-to-air heat pumps also qualify for a £2,500 grant. The 2025/26 BUS budget is £295 million, the largest annual allocation to date, and the scheme runs until 2028.
In Q1 2025, approximately three-quarters of heat pump installations were government-supported through BUS or other schemes. The grant is applied by the MCS-certified installer on the customer's behalf, meaning the installer manages the entire application, approval, and payment process. This creates a significant administrative workload on top of the technical installation.
Solar installation software focuses on roof assessment, panel layout, yield calculations, and electrical integration. Heat pump software needs an entirely different set of capabilities.
Before specifying a heat pump, you need a room-by-room heat loss calculation for the property. This is not optional. MCS standard MIS 3005 requires that the system is designed to meet the calculated heat demand. The heat loss survey captures the building's construction type, wall insulation, roof insulation, floor type, window specifications, air tightness, and the target internal temperature for each room.
Software needs to either perform these calculations directly or integrate with dedicated heat loss tools (such as HeatPunk or manufacturer-specific design software) so the results feed into the system design and the customer-facing documentation. The heat loss calculation justifies the heat pump sizing. If your software cannot demonstrate this link, your MCS documentation is incomplete.
Unlike solar (which is typically a new addition), a heat pump replaces an existing heating system. The survey needs to capture what is currently installed: boiler type and age, radiator sizes and locations, pipework diameter, hot water cylinder (if present), and thermostat arrangement. This data determines whether existing radiators are adequate for the lower flow temperatures a heat pump operates at, or whether upgrades are needed.
Heat pumps operate most efficiently at lower flow temperatures than gas boilers. This often means existing radiators need to be upsized, or underfloor heating installed. Your system design needs to specify the emitter configuration for each room, showing that the proposed system will deliver adequate heat at the design flow temperature. This level of detail goes far beyond what solar design software handles.
The Boiler Upgrade Scheme grant process adds a parallel administrative workflow to every eligible installation. Your software needs to track:
If you are managing 15 to 20 heat pump installations per month, that is 15 to 20 BUS vouchers in various stages of application, approval, installation, and payment. A spreadsheet works until it does not. One missed voucher expiry date and you lose £7,500.
The MCS heat pump installation standard (MIS 3005) requires specific documentation beyond what the solar standard demands. This includes the Compliance Certificate, which is a checklist confirming that the heating system was installed according to MCS standards, recording key information about the system. It also includes the heat loss calculation as a required deliverable, not just good practice.
Your software needs to produce or link to the heat loss calculation, generate the Compliance Certificate with the correct data fields, create the commissioning record specific to heat pump testing (including flow rates, temperature differentials, and refrigerant charge confirmation), and assemble the handover pack with heat pump-specific maintenance guidance.
A heat pump site survey is substantially more involved than a solar survey. Your software needs survey forms that capture all of the following, structured so that nothing is missed and the data flows into the design stage.
This is 30 to 50 data points per survey, plus 15 to 25 photographs. If your surveyor captures this on paper or in a generic notes app, the data has to be transcribed later. If your software provides a structured survey form on a tablet or phone, the data is captured once and available immediately for the design stage.
After the survey, the design process works through several steps that need to connect.
The quotation is where the BUS grant directly affects the customer's decision. A £12,000 heat pump installation with a £7,500 BUS grant costs the customer £4,500. Your quoting system needs to show the full cost, the grant deduction, and the net payable clearly. It also needs to handle the 0% VAT on domestic energy-saving materials, which applies to heat pump installations.
Most of the dedicated renewable energy software platforms were built for solar. Heat pump support has been added as the market has grown, but it is often less mature.
Payaca supports heat pump proposals and integrates with HeatPunk for design, which is a strong combination. However, the platform's core strength is still solar workflows. Heat pump-specific features (BUS grant tracking, emitter schedules, Compliance Certificate generation) may require workarounds or manual processes depending on the complexity of your installations.
Generic field service tools (Jobber, SimPRO, Commusoft) have no understanding of heat loss calculations, BUS grant processes, or MCS MIS 3005 documentation requirements. You can schedule an installation and invoice it, but everything heat pump-specific happens outside the system.
Manufacturer design tools (from Daikin, Mitsubishi, Vaillant, and others) handle system design and sizing well for their own equipment, but they are design tools, not business management tools. The output feeds your technical documentation but not your quoting, scheduling, or compliance workflows.
The result is familiar: heat pump installers run even more fragmented software stacks than solar installers. A typical setup includes a design tool (HeatPunk or manufacturer software), a CRM/project management tool (Payaca, Jobber, or a spreadsheet), an accounting package (Xero or QuickBooks), and manual processes for BUS grant tracking and MCS documentation.
Speak to us about heat pump installer software · +44 7494 618 651 · Mon to Fri, 9am to 6pm
A bespoke system for a heat pump installation business can handle the entire workflow in one place. The survey data feeds the design. The design feeds the quote. The quote feeds the project plan. The project plan triggers the BUS grant application. The installation triggers the commissioning workflow. The commissioning data generates the Compliance Certificate and the handover pack. The completed installation updates the warranty register and the BUS grant payment tracker.
Every step produces data that the next step uses. Nothing is re-entered. Nothing is copied between systems. And every document MCS or Ofgem requires is generated from data that already exists in the system.
For a heat pump installer, the business case for bespoke is often stronger than for solar. The per-installation documentation burden is heavier. The BUS grant tracking adds a parallel administrative workflow. The survey is more complex. And the financial stakes are higher, because a single missed BUS voucher expiry costs £7,500.
A bespoke system covering lead management, structured surveys, design integration, quoting with BUS grant handling, project tracking, MCS MIS 3005 documentation, and warranty management typically costs £12,000 to £25,000 as a one-off build. For an installer completing 15 heat pump installations per month, that is recouped within two years compared to the combined cost of multiple subscription tools.