Common mistakes installers make in BUS projects
The BUS Program (Funds for a Sustainable Future) has opened the door to serious investments in energy efficiency, solar panels, and modern heating systems. It has been a breath of fresh air for homeowners, but also a challenge for installers. Unfortunately, not everyone who jumped into these projects had the necessary experience. In the rush to take advantage of the high demand, many installers made mistakes that, in the long run, can be costly, for both the customer and the environment.
Underestimating the Importance of Proper Design
One of the biggest mistakes happens before the work even begins. Many teams treat the design phase as a formality, using “standard” solutions without analyzing the building’s specifics, actual energy consumption, or system compatibility with the existing network.
This leads to installations that don’t perform as promised, low efficiency, and constant discomfort for the user.
A well-designed boiler upgrade scheme installer starts with an assessment, thermal insulation, building orientation, auxiliary energy sources, and most importantly how the space is used. All these details make the difference between an investment that truly saves money and one that becomes a constant source of frustration.
2. Choosing the Wrong Equipment
In the rush to grab “good deals,” many installers choose equipment that isn’t fully compatible or doesn’t meet BUS program standards. Low-cost equipment may seem like a quick fix but often fails after a few months or requires constant maintenance.
Even worse, some companies don’t check the required certifications, which can result in losing funding or having the project rejected.
An experienced professional that you can find at Expert Heating Solutions knows that a heating system shouldn’t be chosen only by price or power, but by reliability, efficiency, and adaptability. It’s the difference between installing something that merely “works” and something that performs perfectly for years.
Poor Installation and Lack of Attention to Detail
No matter how good the equipment is, installation makes all the difference. Many installers ignore manufacturer recommendations, overlook seemingly minor details, like pump positioning, pipe angles, or proper sealing and end up compromising the system’s efficiency. A poorly made joint can cause pressure loss, noise in the system, or even fluid leaks. And fixing these mistakes later costs far more than doing the job right from the start.
Incomplete Technical Documentation
A boiler upgrade scheme installer knows that the BUS program requires clear documentation for every stage, from design and installation to commissioning and final checks. Unfortunately, many installers treat these requirements superficially.
Without clear diagrams, test reports, or compliance certificates, the file can be rejected, leaving the customer trapped between bureaucracy and empty promises.
A true professional knows that documentation is an essential part of the project. Moreover, complete documentation ensures safety for the client, any technician who intervenes later will know exactly how the system was installed.
Skipping Testing and Final User Training
Perhaps the most serious mistake is rushing to finish and leave. A BUS system, especially one that includes solar panels or heat pumps must be carefully tested. Without proper adjustments, pressure checks, temperature calibration, or user training, all previous efforts can be wasted. The client may think “the system doesn’t work,” when in reality it’s just a matter of settings.
A professional team delivers a fully functional system, explains everything clearly, and offers support even after completion. The specialists at Expert Heating Solutions have the experience, certifications, and know-how to manage the entire process










