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Practical answers for London homeowners, designers and contractors planning electrical, plumbing and heating work.
Written to answer a real planning or diagnostic question.
Heating & boilers · Decision guide
Six signs that justify a closer look, what a professional assessment should check and why cleaning is not the answer to every heating fault.
6 min read · Reviewed 27 September 2026
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Useful before work beginsEach guide resolves a practical choice, risk or preparation question around a planned project.
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Checked by the PEP teamTechnical statements are reviewed against current practice and authoritative sources where rules are involved.
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