Hey! Even with general construction experience, I'd recommend carefully considering whether to hire professionals for helical pile installation. While you understand construction principles, this specific work is quite specialized and demanding. The critical factor is that any mistakes - particularly in vertical alignment - can compromise your entire foundation and the structure built on it. One wrongly angled pile can cause collapse. Manual installation requires at least 3 workers, specific tools (spirit level, rods, 2500mm pipes), plus welding equipment for the heads. You'll need 5-15 minutes per pile minimum if experienced, but potentially several times longer as beginners. After installation, there's concrete work, precise cutting to level, and welding. Professionals with construction equipment can do this faster, more accurately, and can also test load-bearing capacity. Read the full scope of work at I'd suggest getting quotes from specialists - they can provide helical pile driver pricing, and you might find the cost difference isn't as large as you'd expect when you factor in tool rental, your time, and the risk mitigation.