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TRUSTED BY DIAMOND, MO HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon46
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Diamond, MO

*The Angi rating for Heating And Air Conditioning Service companies in Diamond, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Diamond, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on December 04, 2025

Find Heating and air conditioning pros in Diamond

Ozark Air Master

5.00(
3
)
•Approved Pro

Ozark Air Master

5.00(
3
)
•Approved Pro
Super Service Award
Customers say: Quick response
32 local quotes requested
13 years of experience

Ozark Air Master is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests and make their concerns the basis of our business. Please give us a call today!

"Of course the air went out after 5:00 on Friday evening, sent a message to Ozark Air Master, received a call within 5 minutes, a technician came out within 30 minutes and addressed the problem and repaired. Thank you Seth! They will be my go to from now on! 5 stars for this company! Regina McMillan "

Regina M on September 2025

Ozark Air Master is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests and make their concerns the basis of our business. Please give us a call today!

"Of course the air went out after 5:00 on Friday evening, sent a message to Ozark Air Master, received a call within 5 minutes, a technician came out within 30 minutes and addressed the problem and repaired. Thank you Seth! They will be my go to from now on! 5 stars for this company! Regina McMillan "

Regina M on September 2025

Sundown Plumbing and Handyman

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Sundown Plumbing and Handyman

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Sundown Plumbing and Handyman is a small family owned business with over 10 years of experience in the construction field. We can handle all of your small business or residential needs. Specialties include: drywall installation and repairs, painting, plumbing, parking lot painting, furniture building, light installation, door repairs, and more!

Sundown Plumbing and Handyman is a small family owned business with over 10 years of experience in the construction field. We can handle all of your small business or residential needs. Specialties include: drywall installation and repairs, painting, plumbing, parking lot painting, furniture building, light installation, door repairs, and more!

Elite Mechanical and Construction LLC

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Elite Mechanical and Construction LLC

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Emergency services offered

Service & Maintenance on all HVAC/R Residential/Commercial/Industrial applications! New Construction & Remodel - Complete Install of Any equipment to meet your needs! - Retrofit, dated equipment with the new modern efficiency rated equipment! Technologically Advanced - We have an extensive background in the upcoming technologies that will become standard in our industry and for you as the consumer! 20 Combined Years of Knowledge! - We have wide array of experience ranging from Servicing/Installing Residential Homes to Large Supermarkets! - We are ASHRAE & NATE Certified, along with BBB Certified! We appreciate your consideration to service your needs!

Service & Maintenance on all HVAC/R Residential/Commercial/Industrial applications! New Construction & Remodel - Complete Install of Any equipment to meet your needs! - Retrofit, dated equipment with the new modern efficiency rated equipment! Technologically Advanced - We have an extensive background in the upcoming technologies that will become standard in our industry and for you as the consumer! 20 Combined Years of Knowledge! - We have wide array of experience ranging from Servicing/Installing Residential Homes to Large Supermarkets! - We are ASHRAE & NATE Certified, along with BBB Certified! We appreciate your consideration to service your needs!

Neely mechanical inc

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Neely mechanical inc

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Free onsite estimate

With a staff young enough to do but old enough to know , Neely Mechanical brings together the best of youthful enthusiasm with knowledge gained only by age and experience, combined with the best prices in the 4 states, Neely Mechanical is your best choice for your HVAC needs

With a staff young enough to do but old enough to know , Neely Mechanical brings together the best of youthful enthusiasm with knowledge gained only by age and experience, combined with the best prices in the 4 states, Neely Mechanical is your best choice for your HVAC needs

Heating and Air Co.

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Heating and Air Co.

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Residential HVAC Service. Enjoy rock bottom pricing with this first year company. Apartment complexes that have individual HVAC units applicable. Service call - $40 Labor rate - $60/hr Preventative Maintenance - $60/system

Residential HVAC Service. Enjoy rock bottom pricing with this first year company. Apartment complexes that have individual HVAC units applicable. Service call - $40 Labor rate - $60/hr Preventative Maintenance - $60/system

Boldts Services LLC

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Boldts Services LLC

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We specialize in home maintenance of just about any kind. We are licensed heat and air repair. We also are able to many other types of maintenance repairs. I have been doing this type of work for the last 10yrs. We also have the ability to do some vehicle repairs on site. Just call and ask. Thank you

We specialize in home maintenance of just about any kind. We are licensed heat and air repair. We also are able to many other types of maintenance repairs. I have been doing this type of work for the last 10yrs. We also have the ability to do some vehicle repairs on site. Just call and ask. Thank you

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Heating and Air Conditioning questions, answered by experts

Good news: Your AC system doesn’t need Freon (a popular refrigerant) added regularly, if ever. Freon only needs to be added when there’s a refrigerant leak; however, it’s not uncommon for a gradual leak to occur every 5 to 15 years. Signs of a refrigerant leak include higher utility bills, increased humidity in the house, weakened AC performance, and a hissing sound from the system.

A blockage in the ductwork may prevent air from flowing through the vent. If some rooms in your home are very hot or cold and another isn't, that can be a sign that a vent is blocked. Another sign of a blockage is a buildup of dirt or dust around the vent. In either case, a duct installer or cleaning service can investigate the issue for you and recommend a course of action.

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

The best way to compare HVAC quotes is getting a few detailed quotes from local companies with good reputations. Then, go over the quotes line by line. Protect yourself by insisting on in-person estimates that include equipment manufacturer names, model numbers, SEER ratings, amounts and numbers of materials, details of warranties on equipment and labor, and other specifics. 

Knowing the exact equipment and materials is the only way that you can fairly compare quotes. Quotes that are much lower than others can be a sign that the company isn’t providing the best quality service or materials.

While it is possible to add Freon to your AC unit yourself, it is not recommended. In fact, the U.S. Environmental Protection Agency (EPA) prohibits the handling of Freon without a license. Freon is a dangerous gas that can cause irreversible damage to your AC or yourself if not installed correctly. It is worthwhile to hire a professional to add Freon to your AC.

The Diamond, MO homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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