HVAC Company Serving Webster Groves, MO

Most HVAC systems fail at the worst possible time, on the coldest night or the most humid afternoon of the year, usually after months of quiet warning signs. Staying ahead of that is mostly a matter of attention: catching small problems early, keeping the system tuned, and knowing when an aging unit is due for replacement. Family-owned and operated since 1964, Martin-Jetco Heating and Air Conditioning helps Webster Groves homeowners do exactly that, with honest service and clear pricing at every step.

Get heating and cooling help without the runaround. Call (636) 205-1631 or reach out onlineto schedule service.

How Much Does HVAC Replacement Cost in Webster Groves?

When repair no longer makes sense, replacement in Webster Groves generally falls into two ranges:

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

Factors that affect HVAC replacement pricing:

• Home square footage
• System tonnage requirements
• SEER2 efficiency rating
• Single-stage vs variable-speed equipment
• Existing ductwork condition
• Zoning systems
• Electrical or code upgrades
• Indoor air quality add-ons
• Accessibility of installation area

For Webster Groves homeowners, an air conditioner and evaporator coil replacement typically runs approximately $5,500 to $9,200, while a complete HVAC system replacement generally ranges from approximately $8,450 to $22,990+. The final cost depends on the size of the home, the equipment selected, SEER2 efficiency, ductwork condition, zoning needs, electrical or code updates, indoor air quality upgrades, and how easy the system is to access.

Webster Groves has a significant share of homes built in the early-to-mid 20th century, and many of those properties present ductwork, electrical panels, or equipment access conditions that affect project scope and cost. An in-home evaluation is the only way to size the system correctly and price the exact work your home calls for. Call (636) 205-1631 and we’ll schedule one for you as soon as possible.

All Your HVAC Needs, Under One Roof

For homes and businesses throughout Webster Groves, Martin-Jetco Heating and Air Conditioning provides the essential services needed to repair, replace, upgrade, and maintain year-round comfort:

• AC Repair 
• AC Installation 
• AC Replacement 
• Furnace Repair 
• Furnace Installation 
• Furnace Replacement 
• Heat Pump Services 
• Indoor Air Quality 
• Ductless Mini-Splits 
• HVAC Maintenance 
• Emergency HVAC Service 

The team also works with boilers, geothermal systems, air scrubbers, air filtration, whole-home humidifiers and dehumidifiers, air balancing, thermostat installation and repair, and commercial heating and air conditioning. For larger repairs or replacement projects, financing may be available to help make the cost more manageable.

If you are comparing service options, we invite you to read our 1,000+ five-star Google reviews and see what homeowners say about working with Martin-Jetco Heating and Air Conditioning.

Financing, Rebates, & Tax Credits Explained Before You Decide

A new HVAC system is a major home investment, and the price should not feel like a mystery. During your in-home evaluation, our NATE-certified technicians review the full cost of your project along with any savings options that may apply:

• Financing to help spread the cost into predictable monthly payments 
• Spire rebates that may apply to qualifying equipment
• Federal energy-efficiency tax credits for eligible high-efficiency systems 
• Seasonal coupons or offers that may help lower the total cost 

Before you move forward, you will see the equipment options, estimated savings, monthly payment possibilities, and final project cost clearly laid out. That way, the decision is based on the full picture, not just the sticker price.

How Quickly Can Martin-Jetco Heating and Air Conditioning Get to My Home?

Martin-Jetco Heating and Air Conditioning offers 24/7 emergency HVAC service, with same-day appointments often available for heating and cooling problems that need fast attention. Licensed, NATE-certified technicians are dispatched as quickly as possible, and when you contact the team early in the day, service can move fast — some Webster Groves homeowners have had a technician at the door within a few hours of their first call.

For many urgent calls, the technician diagnoses the problem during the visit, explains the repair clearly, and gets the system running as soon as the needed parts and conditions allow. Some repairs are completed the same visit, while larger ones are quoted and scheduled within 24 to 48 hours.

If your furnace, AC, or heat pump is down, calling earlier gives the team the best chance of getting someone to your home the same day. Call (636) 205-1631 to request emergency HVAC service now.

HVAC Challenges Common in Webster Groves Homes

Webster Groves is one of the older residential communities in St. Louis County, with a housing stock that spans Victorian-era homes in the Central Webster Historic District, Craftsman bungalows throughout Tuxedo Park and Old Orchard, Tudor-styles in Sherwood Forest, and mid-century construction throughout Webster Park and Yorkshire Hills. That history produces a consistent set of HVAC challenges that Martin-Jetco Heating and Air Conditioning's technicians encounter regularly across the city:

• Historic and century homes. Homes built before World War II were designed around heating and ventilation systems that bear little resemblance to modern forced air. Integrating today's equipment into these structures requires care and often calls for custom solutions.
• Older ductwork. Duct systems from the 1950s through the 1970s were sized for older, less efficient equipment. Running a modern high-efficiency system through undersized or leaky ducts limits what the equipment can deliver and raises energy bills.
• Boiler and radiator systems. A meaningful number of Webster Groves homes still heat with hot-water boilers and cast-iron radiators. Martin-Jetco Heating and Air Conditioning services, repairs, and upgrades boiler systems, and evaluates whether a repair, a high-efficiency boiler replacement, or a conversion to forced air is the right direction for each home.
• Homes without central air. Many radiator-heated homes have no ductwork at all, making cooling more involved than a standard AC replacement. Ductless mini-splits are often the most practical solution, serving individual rooms or zones without opening original plaster walls.
• Finished attic spaces. Converted attics add living area but are often the hardest part of the house to keep comfortable. Inadequate insulation, limited return air, and reduced ceiling height all work against good airflow in these spaces.
• Finished basements. A finished lower level adds square footage that was rarely part of the original duct design. These spaces tend to run warmer in summer and cooler in winter unless the system is rebalanced or the area gets its own zone.
• Home additions. An addition built years after the original house changes the total load and frequently was never properly connected to the existing HVAC system, leaving it relying on whatever conditioned air drifts its way.
• Uneven room temperatures and airflow balancing. A room that runs consistently hot or cold compared to the rest of the house usually points to an airflow or ductwork problem rather than a failing system. In many cases this can be corrected without a replacement.
• Humidity control in older homes. Older construction tends to be less airtight, which means more outdoor humidity enters during summer. A properly sized system helps, as does a whole-home dehumidifier, but an oversized or aging unit that short-cycles makes the problem worse by not running long enough to pull moisture from the air.

Recognizing any of these in your home? A diagnostic visit is the fastest way to understand what you are dealing with. Call (636) 205-1631 or schedule one online.

Catching Problems Early: Signs to Watch For

Most breakdowns give some warning. Calling when you first notice these often means a smaller, cheaper repair instead of an emergency:

• Weak airflow or rooms that no longer reach the set temperature
• Short cycling, where the system switches on and off frequently
• Unusual noises like grinding, banging, or squealing
• Musty or burning smells when the system runs
• A steady rise in energy bills with no change in how you use the system
• More frequent repairs over the past year or two
• Extra humidity indoors during cooling season

If something feels off, it is worth having your system looked at before it quits altogether. We are available 24/7 for emergency service and known for quick response times. Call (636) 205-1631 and we’ll dispatch a NATE-certified technician as soon as possible. 

Neighborhoods & Areas We Serve in Webster Groves

Over the past 12 months, Martin-Jetco Heating and Air Conditioning's technicians, comfort advisors, and installers completed more than 247 service calls in Webster Groves, including emergency repairs, HVAC system replacements, preventative maintenance, diagnostics, indoor air quality upgrades, airflow balancing, and repairs across the city's neighborhoods.

Martin-Jetco Heating and Air Conditioning serves homeowners and businesses throughout Webster Groves, including the 63119 zip code and neighboring communities. The team has worked across all of the city's historic districts and neighborhoods, including Old Webster, Old Orchard, Webster Park, Tuxedo Park, Selma, North Webster, Yorkshire Hills, Sherwood Forest, Webster Highlands, and the Central Webster Historic District.

Service is available near Memorial Park, the Webster Groves Ice Arena, Webster University, Eden Theological Seminary, the Old Orchard Business District, and the arts venues along Lockwood Avenue. The team also serves homes and businesses near Avery Elementary, Edgar Road Elementary, Hixson Middle School, Webster Groves High School, and Nerinx Hall, as well as along Lockwood Avenue, Big Bend Boulevard, Elm Avenue, Laclede Station Road, Rock Hill Road, Gore Avenue, Watson Road, and nearby inner-ring corridors.

Actual recommendations depend on the system, the home or building, and the owner’s goals. Every visit starts with a diagnosis, clear options, and room to compare repair, replacement, maintenance, airflow, or indoor air quality improvements.

Is an HVAC Maintenance Plan Worth It?

It is a fair question, since a system seems to run fine right up until it does not. The honest answer is that regular HVAC maintenance pays for itself in a few ways. A tuned system uses less energy, so it costs less to run every month. It is far less likely to quit at the worst time, because a technician catches worn parts, low refrigerant, and dirty components before they fail. It tends to last longer, often by years, which pushes back the day you face a full replacement. And most manufacturers require documented annual maintenance to honor their warranty, so skipping it can quietly void coverage you already paid for.

The Martin-Jetco Heating and Air Conditioning Home Comfort Agreement makes that upkeep automatic, with a spring visit for your cooling system and a fall visit for your heating system, plus member benefits:

• Priority scheduling when you need service
• A discounted diagnostic fee on service calls during office hours
• 20% off parts and labor on service repairs
• No overtime fees
• A full safety and performance check at every visit
• Documented maintenance that keeps your manufacturer warranty in good standing

Have more questions about our maintenance plan? Call (636) 205-1631 or message us online.

Simple Ways to Get More Years Out of Your System

Professional service does the heavy lifting, and a few easy habits between visits help your system last:

• Change the air filter every one to three months, more often if you have pets or heavy dust.
• Keep the outdoor unit clear of leaves and grass clippings, with about two feet of open space on all sides.
• Make sure supply and return vents stay open and are not blocked by furniture or rugs.
• Watch your bills and comfort, and call early when something changes rather than waiting for a failure.
• Schedule a tune-up before each cooling and heating season instead of after a problem starts.

None of these replace professional maintenance, but together they keep a system running cleaner and longer.

The Kind of Service People Call Back For

A strong HVAC company is not built on one visit. It is built on the homeowners who call again the next season, refer the team to a neighbor, and come back years later when another system needs attention. Some Martin-Jetco Heating and Air Conditioning customers have been with the company for decades, and a meaningful share of the work comes from referrals and repeat calls.

Our company remains family-owned and operated since 1964, with licensed, NATE-certified technicians handling each visit. Because Martin-Jetco Heating and Air Conditioning installs York, Goodman, Daikin, Carrier, and Trane, the conversation can start with the home itself: what the system needs to do, how the budget looks, and which equipment makes the most sense. No high-pressure sales tactics, and if something needs a second look after the job is done, the team comes back and makes it right.

Past customers have shared more than 1,000 five-star Google reviews, including many from people who have worked with the team more than once. Martin-Jetco Heating and Air Conditioning also holds an A+ rating with the Better Business Bureau, has earned six Angie’s List Super Service Awards, and has been recognized repeatedly as a York Dealer of the Year.

Frequently Asked Questions

What zip code do you serve in Webster Groves? 

Martin-Jetco Heating and Air Conditioning serves all of Webster Groves, including the 63119 zip code, along with the neighboring communities.

How often should HVAC maintenance be done?

Most homes should have HVAC maintenance performed twice a year: once in the spring for the air conditioning system and once in the fall for the heating system. Regular maintenance improves efficiency, reduces unexpected breakdowns, extends equipment life, protects warranty coverage, and identifies small issues before they become expensive repairs. In Webster Groves, where many homes have older ductwork, additions, finished lower levels, or equipment installed at different times, staying on a seasonal schedule is especially worth it.

Can regular maintenance really prevent breakdowns?

Regular maintenance can prevent many avoidable breakdowns, especially problems tied to dirty components, clogged filters, worn parts, low refrigerant, poor airflow, or neglected safety checks. It does not make a system last forever, but it reduces surprise failures and gives a technician the chance to catch small issues before they become larger repairs.

How much does HVAC replacement cost in Webster Groves?

An air conditioner and evaporator coil replacement runs approximately $5,500 to $9,200, while a complete HVAC system replacement runs approximately $8,450 to $22,990+. Home size, system tonnage, SEER2 efficiency rating, equipment type, ductwork condition, zoning needs, electrical or code updates, indoor air quality add-ons, and installation accessibility all affect where the estimate lands.

How much does AC repair cost in Webster Groves, MO?

AC repair costs in Webster Groves can vary depending on the problem. Minor repairs such as capacitors ($150 to $450), contactors, or thermostats ($100 to $600) tend to fall on the lower end. More involved repairs, including refrigerant leaks, evaporator coil problems ($600 to $2,000), or compressor-related failures, can run well over $1,000. System age, refrigerant type, parts availability, and overall equipment condition all factor into the recommendation. Martin-Jetco Heating and Air Conditioning provides clear options so homeowners can weigh repair cost against the long-term value of replacement. Call (636) 205-1631 to request an estimate.

How much does furnace repair cost in Webster Groves, MO?

Furnace repair costs depend on the part, the system's age, and the complexity of the work. As a general guide, ignitor replacement runs $180 to $350, flame sensor cleaning $180 to $340, capacitors $150 to $450, and blower motors $500 to $1400+ or more. Bigger jobs like a heat exchanger ($2,000 to $4,000) or control board ($700 to $1650) cost considerably more and may raise the question of whether furnace replacement makes more sense long-term. Call (636) 205-1631 and a NATE-certified technician will diagnose the issue and walk you through what it costs to repair versus replace.

How long should a new HVAC system last?

With regular maintenance, a quality HVAC system typically lasts 12 to 15 years, and some systems run longer when properly sized, installed, and serviced. Webster Groves homes with older ductwork, boiler or radiator systems, additions, finished lower levels, or mixed-age equipment may place different demands on heating and cooling systems. Staying on top of spring and fall tune-ups, filter changes, and early repairs is the most reliable way to reach the upper end of that range.

Should I repair or replace my system?

Repair often makes sense for a newer system with a single issue, especially when the repair is affordable and the equipment has been reliable. Replacement becomes the stronger option when the unit is past 12 to 15 years, still uses R-22 refrigerant, needs repairs repeatedly, struggles to control humidity, drives up energy bills, or faces a repair approaching a third of the cost of a new system. Martin-Jetco Heating and Air Conditioning evaluates the system, explains both options clearly, and leaves the decision with you.

Why is my AC running but not cooling my Webster Groves home?

An air conditioner that runs but does not cool may have a dirty air filter, low refrigerant, a frozen evaporator coil, a failing capacitor, a dirty outdoor condenser coil, ductwork problems, thermostat issues, or an aging system that can no longer keep up with Missouri humidity. In older Webster Groves homes with plaster construction, undersized ductwork, additions, or finished lower levels, airflow and system sizing can also be a factor. A technician should check refrigerant levels, measure airflow, evaluate the coil and condenser, and determine whether the issue is a straightforward AC repair or part of a larger problem.

Why is my furnace blowing cold air?

A furnace may blow cold air because of a dirty filter, thermostat setting issue, pilot or ignition problem, flame sensor issue, gas supply problem, overheating limit switch, or malfunctioning control board. In some cases, the blower keeps running even though the burners are not producing heat. Because furnace problems can involve gas, combustion, and safety components, the issue should not be ignored. Martin-Jetco Heating and Air Conditioning can inspect the furnace, identify the cause, explain the repair options, and confirm the system is safe to run before leaving.

Are heat pumps effective during Missouri winters?

Yes, modern heat pump services can be effective in Missouri's climate because they provide both heating and cooling in one efficient system. Heat pumps work especially well during mild and moderate winter weather, and many newer systems perform better in colder temperatures than older models did. For some Webster Groves homes, particularly those converting away from boiler heat, a dual-fuel setup or supplemental heat source may be recommended for the coldest days of the year. Martin-Jetco Heating and Air Conditioning can evaluate the home, comfort goals, insulation, ductwork, and energy usage to determine whether a heat pump is the right fit.

Stay Ahead of the Next Heating or Cooling Problem

Whether you are trying to avoid another breakdown, compare repair and replacement costs, schedule maintenance, or price a new system, Martin-Jetco Heating and Air Conditioning can help you make the next step clear. Call (636) 205-1631 or schedule service online today.