Get matched with top heating and air conditioning pros in Marthasville, MO
There are 5 highly-rated local heating and air conditioning pros.
TRUSTED BY HOMEOWNERS
4.7 
32 Verified Reviews for Heating And Air Conditioning Service pros in Marthasville, MO
*The Angi rating for Heating And Air Conditioning Service companies in Marthasville, 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 Marthasville, 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 June 05, 2025
Heating and air conditioning pros in Marthasville
We are family owned and have over 30 years of experience in the Electrical,Plumbing, Remodel and Heating/Cooling fields.
We are family owned and have over 30 years of experience in the Electrical,Plumbing, Remodel and Heating/Cooling fields.
"Fantastic. Jeff & Jim were prompt, professional, and courteous. The provided multiple options to solve our problem and never tried to push a sale. Their work was done with excellence. They worked to keep our home clean and were incredibly friendly. I would definitely recommend Illy HVAC to anyone."
Steve C on June 2020
"Fantastic. Jeff & Jim were prompt, professional, and courteous. The provided multiple options to solve our problem and never tried to push a sale. Their work was done with excellence. They worked to keep our home clean and were incredibly friendly. I would definitely recommend Illy HVAC to anyone."
Steve C on June 2020
Specializing in new system installs, System replacement, indoor air quality products such as humidifiers, EAC electronic air cleaners, ductless systems (mini splits) & Wi-fi thermostats. Providing both light commercial & residential service in St. Louis! Our #1 priority is your satisfaction!
"I previously worked with another company to replace my furnace. The first company was extremely flakey and would constantly cancel my appointments or simply not show up. Eventually, I decided to go on Angie's List, and I found Siefert Mechanical. This company was extremely quick to get to my house, give me an estimate, and then perform the service. Not only did Siefert Mechanical quote me a price that was $600 less than the first company, they also never cancelled or missed an appointment. They came out once to give me a quote, then the very next time they came out to my house, they replaced my furnace. The quality of their work is extremely professional, and I would HIGHLY recommend this company for any heating/cooling service you need performed."
Aaron C on January 2021
Specializing in new system installs, System replacement, indoor air quality products such as humidifiers, EAC electronic air cleaners, ductless systems (mini splits) & Wi-fi thermostats. Providing both light commercial & residential service in St. Louis! Our #1 priority is your satisfaction!
"I previously worked with another company to replace my furnace. The first company was extremely flakey and would constantly cancel my appointments or simply not show up. Eventually, I decided to go on Angie's List, and I found Siefert Mechanical. This company was extremely quick to get to my house, give me an estimate, and then perform the service. Not only did Siefert Mechanical quote me a price that was $600 less than the first company, they also never cancelled or missed an appointment. They came out once to give me a quote, then the very next time they came out to my house, they replaced my furnace. The quality of their work is extremely professional, and I would HIGHLY recommend this company for any heating/cooling service you need performed."
Aaron C on January 2021
Commercial & Residential Hvac. New Installs & sales, Repairs & more. Small Locally owned company. WE don't have all that over head and more to cover so where we save $ our Customers save $$$. Company has been in service for 1 year now. I myself have been in this line of work for 5+yrs and have techs been in the field for 30+ years.
Commercial & Residential Hvac. New Installs & sales, Repairs & more. Small Locally owned company. WE don't have all that over head and more to cover so where we save $ our Customers save $$$. Company has been in service for 1 year now. I myself have been in this line of work for 5+yrs and have techs been in the field for 30+ years.
Employee Management that focuses on unrealized tax credits, cash flow and compliance. Whether you are looking for a simple payroll solution or a complete hire to retire workforce management solution, myself and Heartland are here to help. Applicant Tracking, Electronic Onboarding, e-Verify, Scheduling, Timekeeping, Accrual Tracking, Payroll Processing, HR Administration. Video: https://www.youtube.com/watch?v=yvDotpAluqc
Employee Management that focuses on unrealized tax credits, cash flow and compliance. Whether you are looking for a simple payroll solution or a complete hire to retire workforce management solution, myself and Heartland are here to help. Applicant Tracking, Electronic Onboarding, e-Verify, Scheduling, Timekeeping, Accrual Tracking, Payroll Processing, HR Administration. Video: https://www.youtube.com/watch?v=yvDotpAluqc
Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!
"They did fine"
Keavon R on May 2025
Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!
"They did fine"
Keavon R on May 2025
Loveland Home Solutions is a residential service company specializing in electrical and plumbing repairs. We are family owned and operated and maintain a work load so we can be responsive to your needs in a short time. We have been in business for over 50 years serving the St Charles and St Louis Counties areas
"Consistent, professional, personable… No notes! We contracted Loveland Home Solutions to update our aging home’s electrical system. (update panel, install new recessed lighting, add some new outlets, install surge protectors, etc.) Their responsiveness and professionalism exceeded expectations from bidding to work to follow up. Brendin was great at follow up, answering questions and helping us find the best solution for us. Austin and his team were great and respectful of our home and their work precise and thoughtful. They weren’t the cheapest bid in the pile, but the little extra in our mind was WELL worth the peace of mind and confidence to have true professionals on the job. We will definitely use LHS again and whole heartedly recommend them to anyone needing electrical work done. Great job guys - thank you!"
JAMES C on November 2024
Loveland Home Solutions is a residential service company specializing in electrical and plumbing repairs. We are family owned and operated and maintain a work load so we can be responsive to your needs in a short time. We have been in business for over 50 years serving the St Charles and St Louis Counties areas
"Consistent, professional, personable… No notes! We contracted Loveland Home Solutions to update our aging home’s electrical system. (update panel, install new recessed lighting, add some new outlets, install surge protectors, etc.) Their responsiveness and professionalism exceeded expectations from bidding to work to follow up. Brendin was great at follow up, answering questions and helping us find the best solution for us. Austin and his team were great and respectful of our home and their work precise and thoughtful. They weren’t the cheapest bid in the pile, but the little extra in our mind was WELL worth the peace of mind and confidence to have true professionals on the job. We will definitely use LHS again and whole heartedly recommend them to anyone needing electrical work done. Great job guys - thank you!"
JAMES C on November 2024
Small locally owned and operated HVAC business. Currently only accept cash or check as payment.
Small locally owned and operated HVAC business. Currently only accept cash or check as payment.
With more than 43 years of experience in the field of industrial process heating and space heating, the INTEK Corporation staff is ready to address your specific needs. While gas and electric designs are available, INTEK's patented electric infrared heating element is the predominant heat source used in most INTEK products. Screen printing, space heating and process heating are the major markets served by INTEK. We are equipped to provide any level of design and manufacture - including heating elements, sheet metal work, industrial ovens, process controls and material handling equipment. QUICK SILVER™ flash dryers such as the QUICKFLASH™, AUTOFLASH™, and ‘C’-models provide any screen printer, beginner to professional, with durable long-lasting infrared tools that improve efficiency and withstand the harshest conditions of the modern screen print shop. Our patented, high-efficiency INTEK heating elements are used in every QUICK SILVER™ flash dryer and heater that we build. The STEALTH ™ and ZONALL ™ space heaters include INTEK's patented electric infrared flat panel heating element. With no moving parts, the STEALTH and ZONALL heaters are 100% efficient and produce more useable heat than conventional electric space heaters. In addition to a complete line of proprietary products, INTEK provides parts service and repair for dryers and ovens of any make or model.
With more than 43 years of experience in the field of industrial process heating and space heating, the INTEK Corporation staff is ready to address your specific needs. While gas and electric designs are available, INTEK's patented electric infrared heating element is the predominant heat source used in most INTEK products. Screen printing, space heating and process heating are the major markets served by INTEK. We are equipped to provide any level of design and manufacture - including heating elements, sheet metal work, industrial ovens, process controls and material handling equipment. QUICK SILVER™ flash dryers such as the QUICKFLASH™, AUTOFLASH™, and ‘C’-models provide any screen printer, beginner to professional, with durable long-lasting infrared tools that improve efficiency and withstand the harshest conditions of the modern screen print shop. Our patented, high-efficiency INTEK heating elements are used in every QUICK SILVER™ flash dryer and heater that we build. The STEALTH ™ and ZONALL ™ space heaters include INTEK's patented electric infrared flat panel heating element. With no moving parts, the STEALTH and ZONALL heaters are 100% efficient and produce more useable heat than conventional electric space heaters. In addition to a complete line of proprietary products, INTEK provides parts service and repair for dryers and ovens of any make or model.
Heating and air conditioning services FAQs
Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.
While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.
The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.
Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.
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