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Heating and air · Ducts, controls and air

Thermostat installation

A control that matches the equipment behind it, wired properly, set up and explained.

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One flat fee to find out what is wrong. You are told it on the phone before anyone is dispatched, and it comes off the job if you hire us. Read our Plain Terms

What the work is

Most thermostat problems are wiring, not the thermostat: a missing common wire, a control that expects a stage the equipment does not have, or a heat pump wired as though it were a furnace. A smart thermostat on the wrong wiring is a smart thermostat that does not work.

We set the equipment type, the stages and the changeover, then leave it working and show you how to use it. If your equipment has two stages, you should know that, because a single-stage control on two-stage equipment means you paid for half a machine you never run.

Heat pumps are where this goes wrong most. A heat pump needs a control that understands reversing valve orientation and when to bring on auxiliary heat, and a standard thermostat wired to one will either run the backup heat constantly or not at all. Both are expensive in different ways.

We set it up and then we show you it working, including the schedule if you want one. A control nobody understands gets overridden to hold at one temperature, which throws away the only thing it was bought for.

What is included

  • The control matched to the equipment, with stages and changeover set
  • A common wire run where one is needed and can be run
  • It working before we leave, and shown to you
  • Heat pump changeover and auxiliary heat configured correctly where that applies

What is not

  • Fishing a new wire through a finished wall where there is no path, without quoting it first
  • A control the equipment cannot use, sold as an upgrade

A cheap job still needs the license

Utah's handyman exemption lets some small work be done without a contractor license. Heating and air is not in it at any project value — § 58-55-305(1)(h) excludes HVAC outright. So a thermostat, which is one of the cheapest things anybody will do to a system, sits under exactly the same license as a replacement.

Ours is Utah DOPL 14276430-5501, heating and air conditioning. The state's lookup is public and you should use it on us and on anybody else.

What to ask anyone quoting this, us included

  • Does my equipment have stages this thermostat can actually drive?
  • Is there a common wire, and if not what are you doing about it?
  • How is changeover set?
  • Is my system a heat pump, and is this control set up for one?
  • Can you show me the schedule before you go?

What we can show you in writing

Every line traces to a document we read in full. The number after a sentence points to the research below.

  • A thermostat is a small job, and Utah's small-job licensing exemption still does not cover it. Subsection 58-55-305(1)(h)(ii)(F) puts HVAC work in the hands of a licensed HVAC contractor with no dollar threshold attached.1
  • Utah's H-100 HVAC license is a general classification, alongside general building and general plumbing. The state asks its holder for a written trade exam, a natural gas technician certification and 4,000 documented hours of HVAC employment in the past five years.1
  • The state's licensee lookup lists every license held under a contractor's core number. Look up whoever you are about to hire, including us.1
  • There is no small-jobs dollar exemption for heating and air work in Utah. The handyman exemption in § 58-55-305(1)(h) excludes HVAC at any project value, so a thermostat swap sits under the same license a system replacement does.1
  • Heating and air in Utah is DOPL classification H-100, a general classification rather than a specialty S-number. Ours is 14276430-5501 and the state's lookup is public.1

Where this comes from

Every line above traces to a document we read in full. The number after a sentence points to the research below; hover it for the section. If you find a line wrong, tell us and we will fix it and say so.

  1. Heating and air research, September 2026 Compiled from the Code of Federal Regulations at 10 CFR 430 and the Federal Register, EPA rules on refrigerant transition, the Utah Code and Utah DOPL's licensing records, ACCA's load calculation standard, ASHRAE and the AHRI directory, Pacific Northwest and Lawrence Berkeley National Laboratory publications, NOAA climate normals, ENERGY STAR, and the published data of Trane, Lennox and Daikin. 5 sections cited. Hover a number above for the section.

The rest of ducts, controls and air

The quote is the number. There is no second number.

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