Guides
Plain-English guides for owners and building engineers.
Written from the field. No sales pitch, and nothing you need a mechanical engineering degree to follow.
01
The R-410A phase-down: what building owners need to do
New air conditioning equipment no longer uses R-410A. Here is what that means for the equipment you already own, in plain language.
View →02Rooftop unit: repair or replace?
The honest answer depends on five things. Here is how we weigh them, and how you can check the reasoning of any contractor who gives you a quote.
View →03Water source heat pumps: a building engineer's guide
If your building has a condenser water loop with a heat pump in every suite, this is how the system works, where it fails and how to stay ahead of it.
View →Request service
Tell us what the building needs.
Call or text and you reach us directly, not a call center. Most requests get a reply the same day.
(818) 299-0707Call or text · SNSmechanical.inc@gmail.com