Why a method at all
A plan is a list. A system decides.
Most companies do not lack a home service marketing strategy. They have one, and it is a list. An HVAC marketing plan usually names the channels for the next quarter, sets a budget against each, and leaves the hard question unanswered: what runs, where, at what frequency, and in what order. A marketing plan for HVAC company growth names the tactics. It does not decide between them.
A marketing system for home service companies answers that question the same way every month, and can be checked when it does not. That is the whole difference between the 6 stages below and a plan you rewrite every time results disappoint. A plan changes when the number moves. A system explains why the number moved before you change anything.
Demand generation vs demand capture is not a choice between 2 budgets. Capture has a ceiling set by the demand that already exists, and generation is what raises the ceiling. Run capture alone and the cost of each job climbs every year as more companies bid for the same finite set of searches.