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1 Google reviews
1–2 days
Typical install time
£7,500
BUS grant amount
Whisbro Mechanical Solutions Ltd is an MCS certified air source installer based in City of London. They are registered with the Boiler Upgrade Scheme, meaning they can help you claim up to £7,500 towards your installation.
Based in City of London, W1U 2DW
Areas served:
1.0
1 Google reviews
Based on verified Google reviews
Penny Harris
This firm were called in to replace a water tank with a megaflow for my tenants. They installed the new megaflow in a way that completely blocked access to the expansion vessel and thermostat receiver so that any repairs required a complete draining down of the system. Because the flat was let at the time the ridiculous nature of the installation wasn’t apparent until the end of the tenancy. After weeks of chasing them up they agreed to move the cylinder and receiver. They failed to show up on the day until they were tracked down and then having said that they had completed the work, they left the heating not working with no electrical signal. No amount of contacting them had led to any response - they simply ignore messages and phone calls so I have had to pay for another firm to come in and rectify their faults. They did a poor initial job and a poor quality follow up and they are utterly unresponsive so use them at your peril and expense.
We are MCS‑certified and registered with an approved consumer protection/competent person scheme, which is essential for quality assurance and to access grants like the Boiler Upgrade Scheme (BUS).
We carry out a detailed home assessment, including property type, insulation levels, existing heating system and available outdoor space, to confirm whether a heat pump is a good fit.
We design the system using a heat‑loss calculation for your home, then match the correct kW size and model (for example, air‑source vs ground‑source) so it runs efficiently and reliably.
Our fixed quote clearly lists the heat pump, cylinder, controls, labour, scaffolding (if needed), electrical work and any radiator or pipework upgrades, so you know exactly what you’re paying for.
Yes, as an MCS installer we can confirm your eligibility, apply for the BUS grant (worth up to £7,500) on your behalf and deduct it directly from your quote.
A typical air‑source heat pump installation takes around 2–5 days, and we’ll agree locations for the indoor and outdoor units, manage any planning considerations and keep you informed each day.
After the heat‑loss survey, we’ll advise if any radiators, pipework, electrics or hot‑water cylinder need upgrading so the system can run efficiently at lower flow temperatures.
Modern heat pumps are designed to be quiet and must meet UK noise regulations; we’ll position the unit to minimise any impact on you and your neighbours and comply with local planning rules.
You’ll get manufacturer warranties on the heat pump plus our workmanship guarantee, and we offer ongoing servicing and support to keep your system performing at its best.
We’ll estimate your likely annual running costs and potential savings based on your current fuel type, insulation level and tariffs, using real‑world performance data rather than lab figures.
Boiler Upgrade Scheme
Up to £7,500
off your heat pump installation
This installer handles the full BUS grant application — deducted directly from your quote. No upfront payment needed for the grant amount.
Scheme open until 2028 — limited funding available
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