Indoor Air Quality — Nashville, TN

Indoor Air Quality Services

Most of us spend up to 90% of our time indoors, where some pollutants run two to five times higher than they do outside. We test, assess, and fix the air in Middle Tennessee homes — filtration, purification, humidity, ventilation, and the thermostat that runs it all.

Client Reviews

I’ve been a customer for over 10 years and have always valued this company for its quality work and transparency. Unfortunately, my recent experience was very disappointing. I called for an after-hours weekend HVAC issue and was quoted $140 for the service visit and $210/hour. The technician was at my home for less than an hour, but I was charged $770 due to a three-hour minimum that was never disclosed when I authorized the service. Had I known about the minimum, I would not have agreed to the call. After more than a decade as a customer, I’m extremely disappointed to feel this pricing was not transparent. I will be taking my business elsewhere. If you use this company for emergency service, I strongly recommend confirming all minimum charges and total potential costs before authorizing the visit. Update: Unfortunately, my concerns have only continued. The invoices were not provided until I requested them five days later. I have now had three separate conversations attempting to resolve the issue and was told a billing error occurred and I had been charged plumbing rates. The information provided in each conversation has been inconsistent and, at times, misleading. The original fees I was quoted were repeated to me, yet the charges and explanation continued to change. It appears that Brandon, Barry, and Sabrina each have different information regarding rates, minimum charges, and how this matter should be resolved. As of 8/14/26, this issue remains unresolved. After more than 10 years as a customer, I am extremely disappointed by the lack of transparency, consistency, and accountability throughout this process. I would strongly recommend considering another company, particularly for emergency service, where clear pricing and communication are especially important.
Katie L.
3 months ago
Great job and service:) Highly recommend Total Group!
cindy L.
5 months ago
A small leak at the water softener shut off value...3k later I'm quoted for a whole system replacement including water softener and expansion on the water heater. Then I call to go over the quotes and the person on the other end was annoyed I was confused. Unfortunately I do not reside in that residence so I do not know what is going on and why i have such a massive quote and the person was rude so I hung up. There are hundreds of other places i will spend my money but NOT here. Will not be recommending this place to a soul.
Ember G.
6 months ago
Updated 9/23/2021. Great stuff and still going strong! Updated 10/20/2025. Still great! Just has a very good service where they took care of my HVAC unit.
Max W.
8 months ago
Good communication, friendly and knowledgeable tech, overall great service.
Jess
9 months ago
Called Total Group today, had the quickest response time I’ve ever had. I’m under an hour we were back up and running. Sean was fast, friendly, polite, and even fixed some of the work a different Nashville company messed up.
Eliot B.
12 months ago
Holiday weekend and the HVAC stopped working. I placed a call to Total Group for help. Received a callback from Jason [on duty tech]. As it was late afternoon [and the weather was pleasant], I was okay with Jason coming out Sunday morning. Jason arrived on time [as always], inspected the unit and fortunately was able to make the repairs immediately. He had the unit cooling within 15 minutes of his arrival time. He stayed to ensure no other issues. Jason is an excellent service technician....ALWAYS on time, professional and friendly. If you're looking for a company who hires the best, look no further than Total Group. Thank you Total Group and Jason for exceptional service.
Donna P.
1 year ago
11-29-23 update: another semi annual preventative maintenance service to my unit. The technician Tim was punctual, professional, knowledgeable and courteous. Highly recommend this company. Also, preventative maintenance is cheaper than repairs. Their twice annual service is a great value for the money. UPDATE to original review: 1/2021 I had second annual preventative maintenance check. Communication with Total Group is outstanding! Received a text from Kassandra reminding me of my appointment and confirming the time. Eric, the tech, was prompt, professional and very proficient. Total Group continues to provides consistent excellent customer service. 7/2020 Total Group has provided me with outstanding service for years. Because I am a member of the Total Care Club, Much thanks to the technician. It is so refreshing to work with a locally owned small business that provides excellent customer care!!
Ken S.
3 years ago
Avoid this company for installs. I engaged them in May 2022 to install a new hvac unit. They initially sent third party contractors who did not complete the job. An employee then came out and could not complete the job timely either, causing my family to have to stay with relatives for a night. To this employee's credit, he at least provided a window unit for me to sleep next to overnight. After the unit was actually operating, it was not working appropriately. I had to withhold payment from this company for several months before someone came out to make it right. Fast forward 15 months, I just discovered they installed a box that is too small for the unit (see attached picture) and used tape to try to cover about a 4 inch gap. This tape melted and came loose causing several air leaks. I was told I was losing about 2 vents' worth of air due to these leaks for who knows how long...on a 1 year old system.
Zach G.
3 years ago
I had natural gas shut-off valve (outside furnace) that had slight leaks. I texted the photo to the Total company before I made the appointment. The technician came on August 30, 2022. I want to give 3 feedbacks: (1) Overpriced: The technician put sealant outside on the top of the shut-off valve. Charged $224, including a diagnostic fee of $89 and a service fee of $135, while the actual work took a few minutes. The technician insisted that was their company’s policy. (2) Poor quality: the shut-off valve never stops leaking. See photos for details. (3) Poor customer service: I contacted their customer service. They could make another appointment but would charge the same diagnostic fee of $89 plus whatever applicable. I don’t want to pay the same problem twice. So, I’m finding a different company now. In the meantime, I’m disputing this transaction with my credit card company now for the reason of not meeting my expectation. This is the first time I ever disputed a credit card transaction after using credit cards for more than 20 years.
Xiaoming L.
4 years ago

Whole-Home Assessment
Filtration, humidity, ventilation, and ductwork evaluated before anyone recommends equipment.

Allergy & Asthma Focus
Solutions aimed at the irritants that actually bother your household.

Balanced Fresh Air
ERV and HRV ventilation that brings air in without throwing conditioned air out.

Licensed & Insured
Mechanical contractors serving Middle Tennessee homes since 1996.

Home » Indoor Air Quality
Why Indoor Air Quality Matters

The Air Inside Isn't Automatically Cleaner.

Most of us spend the majority of our time indoors — at home, at school, at work — and the air in those spaces can put us at risk. Some pollutants are chemicals and gases; others are living organisms like mold and pests.

How much you’re exposed to depends on the air exchange rate, the outdoor climate and weather, and how the building is used. That’s why we assess the house instead of guessing at a product.

Turn to Total Group to test, assess, and improve your indoor air quality. With our skill set and experience, we fix the problem so you can enjoy your home safely and comfortably.

Who Feels It Most

  • Very young children
  • Older adults
  • Asthma & allergy sufferers
  • People with heart or respiratory disease

These groups tend to spend even more time indoors — which makes indoor air the air that matters most.

Turn To Total For

Five Ways To Clean Your Indoor Air.

Indoor Air Quality

Air Cleaners & Filtration

A clogged filter makes your system work harder to move any air at all. Upgraded filtration and air cleaning reduce dust, pollen, pet dander, bacteria, plant and mold spores, and smoke.

High-MERV media filters
Whole-home air cleaners
Correct filter sizing
Filter change schedules
Indoor Air Quality

Whole-Home Air Purifiers

Modern air cleaners cut your cleaning and dusting time in half while improving comfort. We size purification to your square footage and occupants — not one box for every house.

Whole-home purifiers
Carbon & PCO options
Odor & chemical reduction
Low-static installation
Indoor Air Quality

Humidifiers & Dehumidifiers

Nashville summers are humid and heated winters are dry. We deliver the right amount of moisture so the house feels comfortable at a lower thermostat setting and mold and dust mites lose their foothold.

Whole-home purifiers
Carbon & PCO options
Odor & chemical reduction
Low-static installation
Indoor Air Quality

UV Germicidal Lamps

A germicidal UV lamp at the coil is a simple, long-lasting way to keep bacteria, mold, and viruses from circulating every time the blower runs.

Whole-home purifiers
Carbon & PCO options
Odor & chemical reduction
Low-static installation
Indoor Air Quality

Fresh Air Ventilation

Balanced ventilation supplies fresh outside air to the rooms you use most and exhausts air from where moisture and pollutants build — without pressurizing or depressurizing the house.

Whole-home purifiers
Carbon & PCO options
Odor & chemical reduction
Low-static installation
Water Quality & Safety Valves

Clean Water.
Safe Valves.
No Surprises.

Nashville water is hard on plumbing, and the valves that protect your drinking water fail quietly. We test, repair, and replace the parts most homeowners never think about — before they become a bill.

Backflow Testing & Repair

Annual testing, repair, and replacement of backflow prevention assemblies — with the documentation you need to stay compliant.

Pressure Reducing Valves

High street pressure wears out fixtures and appliances. We test and replace PRVs to bring pressure back into a safe range.

Mixing Valve Repair

Anti-scald mixing valves on water heaters and showers repaired or replaced for steady, safe water temperature.

Water Softeners & Filtration

Whole-home softening and filtration sized for Middle Tennessee’s hard water, so appliances last longer.

Sump & Lift Pumps

Sump and lift pump service that keeps crawl spaces, basements, and lower levels dry through Nashville storms.

Leak Detection & Repiping

Pinpoint hidden leaks and replace failing galvanized or polybutylene lines with copper or PEX before they cause damage.

Clean Indoor Air Technology

Cleaner Air.
Less Energy.

Advanced air cleaning delivers safe, healthy indoor air without harmful by-products. Airborne particulates — dust, pet dander, pollen — along with pet and cooking odors, viruses, mold spores, and bacteria are eliminated instead of recirculated.

Because the system needs less outside air to dilute what’s inside, the equipment runs less: energy consumption drops and the carbon footprint comes down with it.

90%

Time spent indoors EPA average

2–5x

Higher indoor pollutant levels
EPA comparison

30%

Potential energy savings
with reduced outdoor air load

75%

Less outdoor air intake lower carbon footprint

15115 Old Hickory Boulevard, Suite B
Nashville, TN 37211

Service Area

Serving Middle Tennessee for 30 Years

From our Nashville base, our technicians provide fast, reliable service throughout the greater Middle Tennessee region — prompt response times guaranteed.

  • Nashville
  • Brentwood
  • Franklin
  • Murfreesboro
  • Smyrna
  • La Vergne
  • Hendersonville
  • Gallatin
  • Mt. Juliet
  • Lebanon
  • Spring Hill
  • Columbia

+ surrounding communities throughout Central Tennessee

Commercial & Multi-Family Plumbing

Restaurants, Retail, Offices.
Same Standard.

Our commercial division handles plumbing work for facilities that can’t afford to close — water heaters, backflow, sewer and drain work, and grease trap installation, cleaning, and maintenance.

Facilities We Service

Air-source & mini-split systems
Retail & shopping centers
Office buildings
Industrial establishments
Nursing homes & assisted living
Medical, dental & veterinary
Religious facilities

Grease trap installation, cleaning, and maintenance available for food service and hospitality clients across Middle Tennessee.

Where We Work

Nashville, TN
Brentwood, TN
Franklin, TN
Murfreesboro, TN
Hendersonville, TN
Mt. Juliet, TN
Gallatin, TN
Smyrna, TN
Spring Hill, TN
Nolensville, TN
Goodlettsville, TN
Lebanon, TN

Grease trap installation, cleaning, and maintenance available for food service and hospitality clients across Middle Tennessee.

Frequently Asked Questions

Air Quality Questions, Answered.

What Nashville homeowners ask us most about filters, purifiers, humidity, UV lamps, ventilation, and thermostats.

Explore Our Services

Yes — we provide same-day HVAC repair across Nashville and Davidson County. Our certified technicians service all major brands including Carrier, Trane, Lennox, Rheem, and more. Call (615) 577-1777 for fast scheduling.

We price by the job, not by the hour. After we diagnose the problem you get a flat-rate price in writing before any work begins, so the invoice matches the quote. Diagnostic visits, repairs, and installations are all quoted up front — call (615) 577-1777 for current rates.

Same-day service is standard for calls placed during business hours, and our emergency line is staffed around the clock. Most Nashville-area emergency plumbing calls are handled within hours of the call.

Yes. We repair, maintain, and replace both tank and tankless water heaters and are a certified installer for Navien tankless systems. That includes descaling and service on existing units, gas and electrical connections, permit handling, and hauling the old unit away.

Often, yes. We run a video camera through the line to find the failure and use line-location equipment to mark the exact spot, which lets us make a targeted repair or spot replacement instead of trenching the entire run. When the pipe has failed along its full length, we explain why a replacement is needed before anyone digs.

Yes. We test, repair, and replace backflow prevention assemblies and provide the test documentation required for annual compliance. Ask us to put your assembly on a reminder schedule so the deadline doesn’t sneak up on you.

If the tank itself is leaking, the unit is more than 10 to 12 years old, or you’re facing a second repair within two years, replacement is usually the better value. We will give you both numbers — repair and replace — and let you decide without pressure.

Nashville and Davidson County, plus Brentwood, Franklin, Murfreesboro, Hendersonville, Mt. Juliet, Gallatin, Smyrna, Spring Hill, Nolensville, Goodlettsville, and Lebanon.

Always Available
Emergency?
We Answer.

Our technicians are on call around the clock — nights, weekends, and holidays.

24/7
Contact Us

Let's Get To
Work.

Fill out the form and our team will respond promptly to schedule your service or provide a free, no-obligation quote.


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