
Serving Wentzville, MO and surrounding areas
Approved
In business since 1947
Free estimates
Emergency services offered
"Geothermal heat system repair and maintenance"





+2


Serving Wentzville, MO and surrounding areas
Approved
In business since 1947
Free estimates
Emergency services offered
"Geothermal heat system repair and maintenance"





+2

Serving Wentzville, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Emergency services offered
Warranties offered
"Sam was great. Had a extremely dirty system that would not function correctly or blow cold air. Had High Ridge Heating and Cooling here as he has done work before for me and parents. He took one look and stated we needed to replace entire a/c furnace unit for $3100. Told us it would cost about the same to clean. No way I could afford that so went on Angie's List to find someone and read Sam's review's. He came out and told me the cost at $425 to clean. Which was fantastic. He spent about 2 1/2 to 3 hours and did a wonderful job. Ended up paying total $625 once he was done and asked me before doing anything additional that would cost more. Also since our unit didn't have valves on system to reuse our refrigerant he had to put new in which was part of price increase. Sam, thanks so mich for not trying to take advantage."





+10

Serving Wentzville, MO and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"Robert did a great job in checking out my furnace that wasn't operating and provided me with the next steps I needed to take with the gas company. I can't say enough good things about Robert. He was so extremely helpful and informative. I'm a delighted customer and am glad I have Dunn for my heating and cooling needs."


Serving Wentzville, MO and surrounding areas
Approved
In business since 1946
Free estimates
Emergency services offered
"I cannot say enough wonderful things about this amazing company! My daughter and I had been without a furnace for over 6 years. We used space heaters in the bedrooms, bathroom and kitchen, but the rest of the house stayed cold. Along with that, I had a constant fear of an electrical fire resulting from the units, because last year a young mother and her baby died in a house fire down the street from us, most likely caused from a space heater. When Schraer came to our home that offered to install gas furnace free off charge that was just sitting in their shop! We are truly Blessed and Grateful for their kindness and generosity! There are good people out there in the world, and the owners and employees of Schraer Heating and Cooling are some of best!"





+3

Serving Wentzville, MO and surrounding areas
Approved
In business since 1980
Free estimates
Emergency services offered
"The repairman arrived when indicated; he was professional and informative. He let us know that there is a class action suit against re: a flaw in the mechanism of the ice maker. He thawed the ice maker and stated that it would work about three to six months; however, it has never worked. We're chalking this up to the recall issue. The dryer doesn't heat as well as it originally did; although, the heating element is new. Occasionally, after a full cycle, items have come out wet, which is why we are marking quality as "Fair". We need to contact All American about this problem, but we haven't as we have been out of town. We'll call next week and hope to have the issue resolved at that time."


Serving Wentzville, MO and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"Justin at Chowing Heating and Cooling is who I would recommend you request! He is on time, courteous, and knowledgeable and he will take the time to explain what is going on with your system and answer your all questions. He will explain how things work and he went above and beyond for my clients. I will request Justin for every buyer and seller I have. The girls in the office are also extremely helpful. Karen Davis Tucker/CBG"

Serving Wentzville, MO and surrounding areas
Approved
In business since 2006
Free estimates
Credit card accepted
When your home needs help, count on the team that does Whatever It Takes to make it right. On Time Experts Heating, Air & Plumbing, formerly Hosack Plumbing, Heating & Cooling, now brings together the experience of Hosack and Al-Don. We provide trusted heating, cooling, plumbing, and air and water quality services throughout O’Fallon and the Greater St. Louis area.

Serving Wentzville, MO and surrounding areas
Approved
In business since 2017
Emergency services offered
Warranties offered
"I was having some serious issues with my HVAC system and attempted a couple of DIY solutions. When it comes to serious wiring and hookups of electrical components, I tend to call in the professionals. Arrow Mechanical was fast and convenient and did a very thorough job. They even helped with some of the more advanced electrical work inside my HVAC system to get everything up and running perfectly again! I feel very confident that everything is working properly today! Would absolutely recommend Arrow Mechanical again!"





Serving Wentzville, MO and surrounding areas
Approved
Hello, My Name is Johnathan Steele, Owner Operator of Show-Me Comfort Heating and Air Conditioning. I started my company with the intent to help and show transparency to my customers and to educate them to the best of my abilities on the system that keeps their Home Comfortable. Most Companies will come in to a house fix the issue then leave… That’s where we try and separate ourselves by finding the culprit, educating our customers on why it happened and how to prevent future problems. \n\nWe at Show-Me Comfort Heating and Air Conditioning take pride in our work, and if we wouldn’t do it in our house we wouldn’t do it to yours.

Serving Wentzville, MO and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
At MTL Management LLC, we handle all things under the roof and outside. We **Repair** what is damaged, worn, or no longer working as it should. We **Restore** properties through dependable maintenance, skilled improvements, and thoughtful project management. We **Deliver** a professional experience built on clear communication, accountability, and quality results.\n\nFrom handyman services and repairs to renovations and exterior improvements, we provide one dependable source for managing your project from assessment through completion. We coordinate estimates, qualified contractor assignments, scheduling, materials, progress updates, and final walkthroughs. Before work begins, the assigned contractor reviews the approved scope, site conditions, measurements, access, and material requirements. Any changes are reviewed and approved through MTL before proceeding.\n\nRepair. Restore. Deliver.\n\n





+18
Converting from an oil furnace to an electric furnace isn't a simple swap—the oil system needs to be completely removed before installing the electric furnace. You'll need a full electric system installation, but you might be able to reuse existing ductwork if it's up to current safety standards. You’ll need to budget for a new electric furnace installation, which costs between $1,800 and $6,200, including professional removal, proper disposal, and safe installation of the new system.
Electric furnaces are 100% efficient at converting electricity into heat. However, some of that heat can be lost as it travels through your home's ductwork or escapes through poorly insulated areas. That's why regular duct maintenance and proper home insulation are important to maximize your furnace's efficiency and reduce heat loss, ensuring consistent warmth and lower energy costs.
With proper maintenance, an electric furnace can last anywhere from 20 to 30 years, outlasting the average gas furnace's lifespan of 15 to 20 years. To keep your electric furnace running efficiently, schedule regular cleanings, tighten connections, and have inspections done before winter arrives. With routine maintenance, you’ll ensure consistent, safe heating for years to come.
The size of the electric furnace you need depends on factors like your home's square footage, climate, and insulation quality. As a general guideline, those who live in warmer climates should multiply their square footage by 30 to 35 BTUs, while those in cooler areas should multiply it by 50 to 60 BTUs.
Consulting with an HVAC professional can help you determine the exact size that's right for your home.
An electric furnace works by converting electricity into heat using high-resistance heating elements. A blower then pushes the warm air through your home's ductwork, distributing heat evenly throughout your space. Since there's no combustion involved, electric furnaces eliminate the risks associated with gas furnaces and provide consistent, reliable heating when properly installed.
An electric furnace uses between 40 and 80 kilowatts per day to heat your home. The exact amount it uses depends on factors like your home's size, insulation, and overall energy requirements. Larger homes or those with poor insulation use more energy than smaller, well-insulated spaces. A professional furnace assessment can help confirm the ideal unit size for your needs.
From average costs to expert advice, get all the answers you need to get your job done.

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