AC Installation DIY vs Professional

Step‑by‑step how to replace a home AC compressor: safety, nitrogen purge & brazing, deep vacuum with micron/decay test, charge by weight, then validate SH/SC.

I install ductless mini split systems across Palm Beach County, and they’re tailor‑made for homes like we see in Lake Worth and Lake Worth Beach, bungalows, CBS block houses, condos, sunrooms, and garages where running new ductwork isn’t practical. This guide explains how I plan and execute a mini split AC installation  the right way, when a homeowner can DIY certain steps, and where a licensed pro keeps you safe, code‑compliant, and under warranty. I’ll also share a few mome

DIY is realistic  for: Adding or upsizing a return  in an accessible attic. Fixing one “hot room”  by improving supply size/route, sealing leaks, and balancing. Sealing and insulating  existing ducts, replacing grilles/boots, and adding dampers. Call a licensed HVAC contractor  when: You need load/duct redesign  across multiple rooms, or your static pressure is already high  (you’ll measure this shortly). You’re modifying the main trunk or plenum , relocating equipment, or ro

I’ll walk you through the options (window, portable, ductless mini-split, and full central A/C), then go deep on central A/C and condenser-only installs with the checks I use on real jobs.

Is the scope a simple, single-zone mini-split with clean access? Yes: DIY can be viable if you’re methodical and comfortable with electrical and sealing/drain details. No: Lean pro.