Hey there - adding another approach here for comparison
Going to assume growth strategy means growing topline revenue here, and not profitability (in which case cost cutting could also be a viable "growth" strategy).
The framework I would use is:
Growing revenue = Setting right goals + Executing appropriately
Goal 1: Sell more existing services
- Selling more services to existing clients: e.g., capture more wallet share, through bundled services, upselling complementary services (inspection + repairs
- Acquire more clients + position firm in high growth areas: find which areas of market is growing fastest, invest in marketing and sales to capture more clients. M&A could be an option here - find complementary companies with complementary clients
- Lift prices to clients: understand what is the value you are providing to clients and try to capture more of the value
Goal 2: Develop new services (would deprioritize given how small the company is, should not spread itself too thin)
- Develop complementary services: e.g., which other services are needed by existing clients, which we can develop? e.g, what about inspection, repair and maintenance of standard pipes? Again, M&A is an option here
Lastly, productisation is an interesting concept. In tech, usually it means packaging a product so it is much more scalable and requires less human input. This could be a viable strategy to increase self-service from clients, and decrease cost to sell, and increase velocity of selling. If there is a way to do this for the services above, then it is also viable.