HVAC Company Serving Maryland Heights, MO

Maryland Heights became its own city in 1985, but many local homes were built before then, especially through the 1960s, 1970s, and later decades. That can mean older ductwork, electrical setups, or airflow designs paired with newer HVAC equipment. Condos in communities like McKelvey Manor or Autumn Lakes may also need a different service approach than a ranch or two-story home near Marine Avenue.

Martin-Jetco Heating and Air Conditioning has worked on homes throughout this part of St. Louis County since 1964 and is still family-owned. Every visit is handled by a licensed, NATE-certified technician who looks at the system, the home, and the problem you are having before recommending repair, replacement, maintenance, or another next step.

If your home never feels as comfortable as it should, call (636) 205-1631 or message us online to get honest HVAC guidance from licensed, NATE-certified technicians.

How Much Is a New HVAC System in Maryland Heights?

Two ranges cover most residential HVAC replacements in Maryland Heights:

• Air Conditioner & Evaporator Coil Replacement: approximately $5,500 to $9,200
• Complete HVAC System Replacement: approximately $8,450 to $22,990+

What pushes a project toward the higher end:

• Home square footage and system tonnage required
• Ductwork that needs sealing, modification, or replacement
• High-efficiency variable-speed equipment with a strong SEER2 rating
• Zoning systems for homes where different levels need separate control
• Electrical or code updates required before installation can proceed
• Indoor air quality equipment added to the project
• Equipment access in condos, townhomes, or finished basements

For Maryland Heights homeowners, an AC replacement with evaporator coil typically runs approximately $5,500 to $9,200, while a complete HVAC system replacement generally ranges from $8,450 to $22,990 or more. Condo and townhome projects in communities like Autumn Lakes or McKelvey Manor often involve different access logistics than a detached single-family home, which can shift where the estimate lands.

To find out where your replacement falls in the range, schedule an in-home evaluation online or call (636) 205-1631.

What Does It Cost to Repair Heating or Cooling Equipment?

Repair costs can vary a lot depending on what failed. A small electrical part may be a few hundred dollars, while a major component can move the conversation closer to replacement. Below, we’ve put together common ranges to help you plan.

• Capacitor: $150 to $450 
• Thermostat: $100 to $600 
• Ignitor replacement: $180 to $350 
• Flame sensor: $180 to $340 
• Furnace capacitor: $150 to $350 
• Blower motor: $500 to $1,400+ 
• Evaporator coil: $600 to $2,000 
• Control board: $700 to $1,650 
• Heat exchanger: $2,000 to $4,000 
• Compressor-related failures: well over $1,000

Trying to decide how much to put into your current system? Call (636) 205-1631 or message us online for a straightforward answer before you move forward.

HVAC Services for Maryland Heights Homes & Businesses

A heating or cooling issue can start in a lot of places: the equipment, the ductwork, the thermostat, the air quality, or the way the space is used. Martin-Jetco Heating and Air Conditioning helps homeowners and businesses figure out what is needed, then handles the work from there.

• Cooling systems: AC repair, AC installation, and AC replacement for systems that are struggling, aging, or no longer worth repairing 
• Heating systems: Furnace repair, furnace installation, furnace replacement, and heat pump services 
• Separate comfort control: Ductless mini-splits for condos, townhomes, additions, finished spaces, and areas that are difficult to connect to existing ductwork 
• Indoor air that needs more support: Whole-home filtration, air scrubbers, humidifiers, dehumidifiers, and other indoor air quality upgrades 
• Seasonal upkeep: HVAC maintenance and pre-season tune-ups before the busiest heating and cooling months 
• Breakdowns that cannot wait: Emergency HVAC service during evenings, weekends, holidays, and other after-hours situations 
• Specialty and commercial systems: Boiler service, geothermal system work, and commercial heating and air conditioning for offices, retail spaces, hotels, restaurants, and other local properties 

Martin-Jetco Heating and Air Conditioning installs York, Goodman, Daikin, Carrier, and Trane, so you have several equipment options when repair or replacement is on the table. Financing is available for qualifying projects.

We Can Help Lower Your HVAC Replacement Cost

The price of a new HVAC system depends on the equipment, the installation, and the condition of the home. It can also depend on which savings programs are available when you schedule the work. During your estimate, Martin-Jetco Heating and Air Conditioning reviews the options that may help make the project easier to manage.

That can include:

• Financing for qualifying projects, which can spread the cost into monthly payments instead of one upfront expense 
• Utility rebates, filed for you when the installed equipment qualifies 
• Federal energy-efficiency tax credits, available for certain heat pumps, high-efficiency furnaces, and AC systems 
• Seasonal offers, which may reduce the project cost depending on what is available at the time

You see the equipment price, payment options, rebates, credits, and offers together before deciding. Call (636) 205-1631 or request an estimate online to find out what may apply to your replacement.

Need HVAC Service in Maryland Heights? Call (636) 205-1631.

Martin-Jetco Heating and Air Conditioning offers emergency HVAC service in Maryland Heights at any hour, including evenings, weekends, and holidays.

Here is what happens when you call:

• Your request is handled quickly, with licensed, NATE-certified technicians dispatched as schedule, weather, and call volume allow 
• Morning calls often mean same-day service, sometimes that afternoon or sooner 
• The technician diagnoses the system on site instead of guessing over the phone 
• You get the repair cost before work begins, along with an explanation of what failed and what the repair involves 
• Most repairs are completed the same visit or fully scheduled within 24 to 48 hours of the first call 

If your home is already uncomfortable, call (636) 205-1631 now.

Heating & Cooling Problems We See Around Maryland Heights

Maryland Heights' mix of mid-century single-family subdivisions, newer condo and townhome communities, and a sizable commercial corridor near Westport Plaza creates a fairly distinct set of HVAC patterns. Here is what our technicians run into most often across the area:

• Original ductwork in 1960s and 1970s ranch and Colonial homes. A large share of Maryland Heights' housing was built during this period, and the duct systems were sized for equipment standards that no longer apply. A modern high-efficiency unit paired with original, unsealed ductwork rarely performs the way the equipment's rating suggests.
• Condo and townhome HVAC with shared or limited access. Communities like Autumn Lakes and McKelvey Manor involve mechanical considerations that single-family homes do not: shared walls, limited equipment placement options, and sometimes HOA coordination before work can begin.
• Two-story homes with second-floor temperature gaps. Colonial Revival construction common in Maryland Heights tends to put bedrooms upstairs and the main living space below, and many of these homes have ductwork that was never balanced to deliver equal airflow to both levels.
• Aging systems nearing the end of a long service life. With most of the city's housing dating to before 1985, plenty of HVAC systems here are well into their second or third generation of equipment, and another repair does not always make financial sense compared to AC replacement or furnace replacement.
• Commercial HVAC demands near the Westport corridor. Offices, hotels, and retail space near Westport Plaza and the I-270 corridor have different load profiles than residential properties, and system downtime during business hours carries its own urgency.

If you cannot tell whether the issue starts with the system, the ductwork, or the layout of your home or unit, call (636) 205-1631 and our NATE-certified technicians can help you sort it out.

Neighborhoods & Areas We Serve in Maryland Heights

Martin-Jetco Heating and Air Conditioning serves homeowners and businesses throughout Maryland Heights, including the 63043 zip code and nearby St. Louis County communities. The team works across residential areas such as Autumn Lakes, McKelvey Manor, and homes near Marine Avenue, Eldon Avenue, Dorsett Road, and Fee Fee Road.

Service is available near Creve Coeur Lake Memorial Park, Vago Park, Aquaport, the Edward Jones Family YMCA, Westport Plaza, and Hollywood Casino St. Louis. The team also serves homes and businesses along Page Avenue, McKelvey Road, Creve Coeur Mill Road, and the I-270 corridor.

Families near Pattonville High School, Pattonville Heights Middle School, Parkwood Elementary, Rose Acres Elementary, McKelvey Elementary, and the Academy of Innovation at Remington can call Martin-Jetco Heating and Air Conditioning for HVAC service throughout this part of St. Louis County.

Seasonal Maintenance Without the Guesswork

The Martin-Jetco Heating and Air Conditioning Home Comfort Agreement gives your HVAC system regular attention before the busiest parts of the year. Instead of trying to remember when the last tune-up happened, you have a plan built around cooling season, heating season, and the repairs that can come up in between.

Membership includes:

• Two visits each year, one before cooling season and one before heating season 
• A full equipment inspection during each visit, so developing problems can be found early 
• 20% off parts and labor for repairs needed between scheduled visits 
• No rate increase for evening or weekend calls
• Priority scheduling when an unexpected issue comes up 
• A reduced diagnostic fee for calls during regular business hours 
• Documented HVAC maintenance records that satisfy most manufacturer warranty requirements 

Ask about the Home Comfort Agreement when you call (636) 205-1631, and Martin-Jetco Heating and Air Conditioning can explain how the plan helps keep seasonal maintenance on track.

Serving Maryland Heights Since 1964

Maryland Heights officially became a city in 1985. Martin-Jetco Heating and Air Conditioning had already been working on homes in this part of St. Louis County for more than twenty years by then, and the company has stayed family-owned through every year since:

• A long history in this part of St. Louis County. Martin-Jetco Heating and Air Conditioning was serving local homeowners years before Maryland Heights incorporated, giving the team decades of experience with the area’s homes and HVAC needs.
• A York Dealer of the Year, more than once. This recognition goes to dealers who consistently meet a manufacturer's standards for training, service quality, and customer satisfaction.
• An A+ rating with the Better Business Bureau. A rating that reflects how complaints, if any arise, actually get resolved.
• Six Angie's List Super Service Awards. Earned year over year based on verified customer reviews.
• Licensed, NATE-certified technicians on every job. NATE certification is the industry's leading independent technical credential, which means the person at your door has been tested on real-world HVAC competency, not just trained internally.

Before calling (636) 205-1631, check our 1,000+ five-star Google reviews and hear directly from homeowners who have trusted Martin-Jetco Heating and Air Conditioning with their heating and cooling service.

Frequently Asked Questions

What zip code does Martin-Jetco Heating and Air Conditioning serve in Maryland Heights?

Martin-Jetco Heating and Air Conditioning provides HVAC service throughout Maryland Heights, including homes and businesses in the 63043 zip code and nearby St. Louis County communities.

My condo’s HVAC system needs work. Is that different from a typical service call?

Sometimes, yes. Condo and townhome HVAC work can involve details that do not come up in a single-family home, such as shared walls, tighter equipment areas, limited access, or HOA requirements. In Maryland Heights communities like Autumn Lakes and McKelvey Manor, Martin-Jetco Heating and Air Conditioning takes those factors into account when evaluating the system, planning the work, and explaining the cost.

How much does it cost to replace an HVAC system in Maryland Heights?

An AC replacement with an evaporator coil typically falls between approximately $5,500 and $9,200. A complete HVAC system replacement usually ranges from approximately $8,450 to $22,990 or more. The final price depends on the size of the home or unit, ductwork condition, equipment efficiency, and how easy the system is to access. Call (636) 205-1631 or request an estimate online for pricing based on your property.

How much does AC repair typically cost in Maryland Heights?

The cost depends on what failed. Smaller AC repairs, such as capacitors or thermostats, often range from $150 to $600. Blower motor repairs usually run $500 to $1,400 or more, while evaporator coil repairs can range from $600 to $2,000. Compressor-related problems are usually among the most expensive and often cost well over $1,000. We explain the repair cost before work begins and helps you compare it with replacement when that conversation makes sense. Call (636) 205-1631 to schedule an HVAC evaluation.

How much does furnace repair typically cost in Maryland Heights?

Common furnace repairs vary by part. Ignitor replacement and flame sensor cleaning generally range from $180 to $350. Furnace capacitors usually run $150 to $350, while blower motors can cost $500 to $1,400 or more. Control board repairs range from $700 to $1,650, and heat exchanger work can run $2,000 to $4,000. When a repair reaches the higher end, Martin-Jetco Heating and Air Conditioning can help you compare the cost against furnace replacement before you decide. Call (636) 205-1631 to request a repair estimate.

My upstairs bedrooms are always warmer than the rest of the house. Is that normal?

It is common in many two-story homes, including Colonial Revival-style homes found around Maryland Heights. The issue often comes from airflow, not a failed AC system. Ductwork may not be balanced well enough to move the same amount of cooled air upstairs as it does through the main floor. A technician can check airflow at the registers, review system sizing for the home’s layout, and explain whether the right fix is duct adjustment, zoning, or a larger system change.

Why does my AC run constantly without actually cooling the house?

An AC that keeps running but does not cool well can point to several problems, including a dirty filter, low refrigerant, a frozen evaporator coil, a failing capacitor, a dirty outdoor condenser, or leaking ductwork. In some older Maryland Heights homes, ductwork designed for earlier equipment may also limit how well a modern system performs. A technician should check refrigerant levels, measure airflow, inspect the coil and condenser, and look at the duct system before deciding whether the answer is a simple AC repair or something more involved.

My furnace runs but the air coming out is cold. What does that mean?

This often means the blower is moving air, but the burners are not producing heat. Possible causes include an ignition problem, dirty flame sensor, tripped limit switch, control board issue, or clogged filter causing the system to overheat and shut the burners off. Because furnace problems can involve gas and combustion components, it is safer to call (636) 205-1631 for a proper diagnosis instead of repeatedly resetting the system.

Do heat pumps make sense for Maryland Heights homes?

For many homes, they can. Heat pumps give homeowners one system for heating and cooling, and newer heat pumps perform much better in Missouri winters than older models did. Whether a heat pump is the right fit depends on the home’s insulation, ductwork, comfort goals, and how much heating support the home needs during the coldest weather. In some cases, a dual-fuel setup with a backup furnace may be the better choice. Martin-Jetco Heating and Air Conditioning can walk through both options during an in-home evaluation.

How often should an HVAC system in Maryland Heights be serviced?

Most HVAC systems should be serviced twice a year: once before cooling season and once before heating season. In Maryland Heights, where many homes were built before the city incorporated in 1985, older ductwork and systems that have gone through one or more replacement cycles make routine maintenance especially useful. Professional HVAC maintenance also helps satisfy most manufacturer warranty requirements.

Is financing available for HVAC work in Maryland Heights?

Yes. Financing is available for qualifying projects. During the evaluation, Martin-Jetco Heating and Air Conditioning can also review Spire rebates, applicable federal energy-efficiency tax credits, and current seasonal offers, so you can see the full cost picture before making a decision.

Get Help with Your Maryland Heights HVAC System

Whether you need a repair now, a replacement estimate, or maintenance before the next season, Martin-Jetco Heating and Air Conditioning can help you make a clear decision. Call (636) 205-1631 or message us online to schedule HVAC service in Maryland Heights.