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Utah's Furnace Repair and Installation Experts

Delivering WOW Through Expert Service 

Utah's Furnace Repair and Installation Experts

Delivering WOW Through Expert Service 

Heating Services

At Black Diamond Experts, we install, service, and maintain heating and air systems for residential and commercial customers throughout St George, Utah and surrounding areas.

Your furnace is an essential part of having a comfortable home. When your furnace fails to start or you are needing a replacement give us a call. Our expert heating technicians can quickly troubleshoot the situation and provide you with an up-front cost evaluation. If you are ready for a new furnace we can also help determine the best solution for your home. Call us today to schedule an appointment with one of our expert technicians.

Servicing St. George & Surrounding Areas

technician performing heating services in salt lake city utah

marika watters
15:52 18 Feb 20
Luckily only a simple problem with my furnace but these guys were amazing. Very nice, professional and knowledgeable. Got my heat working again in no time. Thanks again.read more
16:51 10 Feb 20
Very impressed with Parker when he stopped by to provide an estimate for a whole house humidifier. He knows his stuff. Unfortunately the existing utilities in our house makes the installation too difficult. Hope to have them replace an AC unit in another property we own.read more
17:51 10 Jan 20
Fast, reliable & affordable!Parker was on the job within the day to replace my furnace. Everything was explained. I dealt directly with Parker the installer. No middleman any questions I had were answered by Parker. What a great company to work with. This how a business should operate.read more
sheburm .
20:06 04 Nov 19
Excellent experience working with Parker to replace our entire A/C unit. Parker knows what he is doing. Black Diamond easy to schedule appt., flexible hours, great communication. I needed a high quality, middle-of-the-budget-line unit and that is what I got. I'm very happy with Black Diamond Heating and Air Conditioning!read more
Erika Stephenson
22:05 07 Sep 19
We woke up at 3 am to water dripping through our ceiling. Black diamond was at our home that afternoon to diagnose the problem with our AC. Within 2 days it was fixed. Our repair man was super friendly and got the job done quick. Hopefully we don't have any issues again, but if we do, we will for sure use black diamond again!read more
Jim Roberts
23:16 28 Jul 19
Fantastic response on a very hot weekend in St George to fix my air conditioning. Thank you to Parker at Black Diamondread more
gabbie floro
19:40 07 Jun 19
Chris pedraza sr and his team were amazing they answered all of my questions and did an excellent job.read more
Peggy Rudd
02:23 10 May 19
Parker was so kind and helpful! He explained everything so well! Would highly recommend Parker and Black Diamond to everyone!read more
Jason Ryser
18:51 09 May 19
Was staying at my uncles second home in St George, and the AC quit working. I needed the ac repaired asap, so I called Black Diamond Heating and Air. They came out within a couple hours, and had me operational within 4 hours. Cant say enough about their fast and professional service. Very impressed.read more
Barbara Bigelow
03:54 27 Mar 19
The service was excellent! They were on time, very professional, and answered all my questions. I will definitely use them again!read more
Patricia Yanzon
11:39 21 Mar 19
Excellent customer service,very professional and they did an amazing job . My house is too old I have to do a liner in my sewer line . They matched competitors prices and they’ve done the job in 2 days in and out no headaches and no excuses. I’m really happy. Thank youread more
Barbara Marshall
19:51 18 Mar 19
Had a very good experience with Black Diamond. Needed a new HVAC system. They were polite and on time. They were done within the timeframe they had given me. The unit is working well. Thank you Black Diamond.read more
Ashley Wiggins
22:29 04 Mar 19
What an awesome company! Lance came in and did a tune up on our heating and air system. He found a small issue with our contactor, showed me a photo of what he had found, explained why it was a concern, wrote up a quote and even offered to clean up the small amount of dust that'd fallen from the attic. He was professional without being pushy. I'd highly recommend them!read more
Rocky Martinez
18:45 28 Feb 19
Amazing service! Black Diamond Experts sent Lance to clean our furnace. He did a thorough job, didn’t rush, walked us through each step, and gave us a wealth of knowledge for maintaining our furnace. The price was reasonable and he had parts to replace a few things on our current unit already with him. He was not pushy and tried to offer us the most economical options. He was so polite and wasn’t there to make a sale but rather to help us out. Thanks Black Diamond Experts!read more
Ann Nafus
01:33 28 Feb 19
Black diamond came out and was amazing. My furnace quit on me. The technician came out the same day and got me up and running. I am so grateful for them. The price was reasonable too.read more
Tatiana Wood
20:11 25 Feb 19
Lance with Black Diamond was amazing. Came when they said he would and helped get my furnace working again. He also showed me some additional things that will help keep my heating costs down. Thanks Black Diamond!!read more
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Award Winning Service

We Service All Major Brand of Heating Systems

major brands of air conditioners and furnaces serviced

Why You Should Purchase Your New Furnace From Black Diamond Experts

Our company strives for excellent customer service, fairness in price, quality in workmanship, and we provide a service guarantee that no other company can meet. We stand behind our services. Should any trouble arise with work performed by us, just give us a call. We will make the situation right.

No “padding your bill”. Our technicians DO NOT work on commission. So you can rest assured that our HVAC technicians are not trying to sell you something you don’t need or add unnecessary work.

Payment options are available for those who qualify–should extra help be needed.

Our HVAC technicians are very knowledgeable in their trade. They have a lot of experience maintaining and installing HVAC systems. When you schedule an appointment with one of our experts they will be able to help you determine the best option for your home setup. 

They are skilled and highly trained to install and maintain furnaces. Our technicians can evaluate your current setup and help determine which furnace would be best for your home. 


Consider Which Furnace Gives You the Best AFUE (Annual Fuel Utilization Efficiency). 

The higher the AFUE value the more efficient your furnace is. AFUE is a measure for how efficient your furnace is at converting fuel to heat. 

Of the different types of furnaces to consider, the more common are the variable speed 2-stage and modulating variable speed 2-stage models.

Variable speed furnaces are efficient in design and quieter than older one-speed models. This type of furnace has a variable speed motor that moves the warmed air at different rates so your home’s temperature can stay steady. Because of the variable speed motor you’ll not hear the familiar noisy “kicking on” sound or experience the sudden blast of air when it first starts. Instead, the variable speed furnace operates quietly and efficiently. 

Modulating variable speed 2-stage furnaces are even more efficient than variable speed models. A modulating variable speed 2-stage furnace starts with the gas valve fully opened and the fan blower at 0% speed. As the blower fan increases in speed, the gas valve reduces the flow of gas to the burners. The furnace automatically adjusts and regulates the gas flow and fan speed in order to keep the temperature steady.

Lack of Maintenance

A lack of maintenance is often the cause for furnaces to fail or malfunction. Furnace manufacturers recommend having your furnace tuned-up at least once per season. Lack of maintenance leads to costly breakdowns when you need heat the most. Other common issues that can arise because of furnace neglect include clogged filters, carbon monoxide leaks, and components malfunctioning.

Dirty Filters

One of the leading causes of furnace malfunctions is a dirty air filter. According to Energy Star, a U.S. Environment Protection Agency, furnace filters should be changed at a minimum of every 3 months. Furnace filters prevent particles like dust, pollen, and other debris floating in the air from entering your HVAC system and circulating throughout your home. A clogged filter can cause your furnace to overheat, likewise a dirty filter can result in reduced air flow which causes your furnace to work harder which raises your energy bill.  If you are unfamiliar with your furnace or don’t know how to change your air filter, a furnace tune-up from Black Diamond Heating and Air is a great option. A new standard filter change is included with our 21 point signature tune-up.

Pilot Control or Electric Ignition Problems

Furnaces are lit by either an electronic ignition or a standing pilot light. If your furnace fails to light and you are unfamiliar with troubleshooting safely, give us a call. Gas furnaces combined with flame can be an explosive combination if not handled correctly. Our experts at Black Diamond are trained to fix any problem with your pilot or electric ignition.

Not Heating At All

If your furnace is not producing heat, this could be due to a faulty pilot or electric ignition, a thermostat setting, lack of power to the furnace, or problem with the gas line. There are many possibilities for why a furnace won’t produce heat, our HVAC technicians are expert troubleshooters and will be able to identify the source of the problem should you have a no-heat situation.

Not Heating Enough

The two main reasons for insufficient heat is as a result of a dirty air filter or because the furnace is not sufficient for the size of the home or office space.

Powering On and Off Constantly

If you notice that your furnace is constantly cycling on and off, it could be a sign of a dirty or clogged air filter, a problem with a thermostat setting, or even an issue due to poor home insulation.

Continually Running Blower

The first thing to check for a continually running blower, or a blower that won’t shut off is “manual FAN ON” setting on the thermostat. Verify that setting is not active.  Also on the thermostat verify that the FAN switch is set to AUTO and not ON. If neither of those settings resolve the issue, there could be a problem with the limiter switch, a technician may need to replace that component.

Continually Running Blower

Anytime your furnace produces unfamiliar noises, such as rattling, rumbling, squeaking, or other strange sounds, your furnace needs attention. These situations are best left to an expert to diagnose, but they could signal an air flow problem, mechanical issue, or even an issue with a burner.

Why Have Your Furnace Tuned-Up?

Having your furnace tuned-up is part of the process of ensuring its longevity, avoiding furnace malfunctions, and ensuring that you and your family stay safe and warm during the cooler months. Just like with a car, if left unserviced, things break and the repairs can add up.


When left unserviced you leave yourself open to the dangers of carbon monoxide, which is a common problem with older neglected furnaces. Carbon monoxide leaks are difficult to detect unless you have a CO detector. Carbon monoxide is a gas that is colorless, odorless and tasteless. Carbon monoxide can lead to headaches, dizziness, nausea, and even death.


A furnace tune-up also ensures that your furnace is running optimally. When your furnace is working correctly you’ll get the most energy efficiency which equates to money saved on your energy bill.

In our experience, many of the furnaces we have serviced would have benefited from routine maintenance. While we are happy to provide furnace repairs, we would rather have you call us before problems occur so that we can prevent them before they happen.

heating services

Call us now!


Call us now!


Call us now!