# Boiler Installation in St. Louis # Expert Boiler Installation by Certified Technicians in St. Louis Boiler heating is quiet, efficient, and delivers some of the most consistent warmth available and for the right St. Louis home, it's hard to beat. Air Comfort Service has installed and serviced boiler systems across the St. Louis metro for over 55 years. [ Call Today **314-819-0028** ](tel:+1-314-819-0028) ## Is a Boiler Right for Your St. Louis Home? Most St. Louis homes are built around forced-air furnaces. Boilers work differently. They heat water and distribute warmth through radiators, baseboard heaters, or radiant floor panels. Here's when a boiler is the right fit for your St. Louis home, and when it isn't. ### A boiler is likely the right fit if… Your home already has a boiler and needs a replacement. This is the most common scenario. You own an older St. Louis home (pre-1960s) with existing steam or hot water infrastructure. You're in Tower Grove, Soulard, Central West End, or similar neighborhoods built with steam heat. You want radiant floor heating in a new addition or renovation. ### When a boiler probably isn't the right call… Your home currently has ductwork and a furnace. Switching to a boiler system adds significant cost. If you're looking for the most cost-effective upgrade path a furnace or heat pump replacement typically wins. **We'll be straight with you:** If forced-air is a better fit for your home, we'll tell you. An honest recommendation earns more trust than a sale that doesn't make sense, and we've been in St. Louis long enough to care about that. ## Types of Boilers We Install ### Steam Boilers Heats water past the boiling point to produce steam, which is then distributed through single or two-pipe systems to radiators. This is more common in older St. Louis homes. We install, replace, and can convert single-pipe to two-pipe for improved zone control. ### Hot Water (Hydronic) Boilers The most common modern boiler type. Heats water to 140-180°F and circulates it through baseboard heaters, radiators, or radiant floor systems via a pump. More efficient than steam and easier to zone. We install both traditional and high-efficiency condensing models. ### Combination Boilers Provides both space heating and domestic hot water from a single unit, eliminating a separate water heater. Ideal for smaller homes or where space is limited. We'll confirm if your home's hot water demand is a good fit before recommending one. ## The Boiler Installation Process Here's exactly what to expect when you book a boiler installation with Air Comfort Service. ## Boiler vs. Forced-Air Heating - An Honest Comparison This is a fair comparison. If forced-air is a better fit for your home, we'll tell you. **Bottom line:** If your home already has a boiler, replacing it with a modern unit is almost always the right call. If your home has ductwork and a working forced-air system, a furnace or heat pump replacement is typically more cost-effective. We'll give you a straight answer based on your home. ## What Does Boiler Installation Cost in St. Louis? Cost depends on boiler type, system size, and the complexity of your existing piping. Typical ranges of boiler installation in the St. Louis area include: Standard hot water boiler replacement**$4,000-$8,000** High-efficiency condensing boiler replacement**$6,000-$12,000** Steam boiler replacement**$5,000-$10,000** Combi boiler installation**$5,000-$9,000** New installation (no existing system - add for piping) **+$2,000-$5,000** These are ranges. Your actual cost depends on the specific unit and your home's layout. The most accurate number comes from a free in-home assessment. ## Financing Options A new boiler is a significant investment, and Air Comfort Service makes it manageable. We offer 0% APR financing for up to 72 months on new equipment installations through Wells Fargo (with approved credit). An aging, inefficient boiler costs more every month it runs. Ask your technician to walk you through a cost-over-time comparison at your free estimate. The monthly savings on a high-efficiency system often offset the payment. [Learn more about financing options →](https://www.aircomfortservice.com/financing/) ![technician showing customer service offerings](https://www.aircomfortservice.com/wp-content/uploads/2025/07/1200x1200-76-1024x1024.png "hvac services")## Boiler Installation Across the St. Louis Metro Not sure if we cover your area? Check out our [full service area page.](https://www.aircomfortservice.com/our-service-areas/) ## FAQ Q: How long does a boiler last? **A**: A well-maintained boiler typically lasts 15-30 years, with modern hot water boilers on the longer end and steam boilers varying based on maintenance history and water quality. If your boiler is more than 20 years old and facing a significant repair, replacement is usually the better investment. Q: Do you service the boiler after installation? **A**: Yes. Air Comfort Service offers annual boiler maintenance visits. Preferred Partner Plan members receive two system checks per year, priority scheduling, and discounts on parts and repairs. Annual maintenance is strongly recommended as it extends system life, maintains efficiency, and catches small issues before they become expensive ones. Q: What is the average price to install a boiler? **A**: In the St. Louis area, the average cost to install a boiler runs $5,000-$9,000 for a standard replacement, including equipment and labor. New installations without existing piping or distribution typically add $2,000-$5,000 to those figures. The biggest variables are boiler type, system size, and the condition of your existing piping and radiators. Air Comfort Service provides free in-home estimates because the most accurate number comes from seeing your home, not a calculator. Q: What are signs that a boiler needs replacing? **A**: It's 20+ years old, repair costs are creeping toward 50% of a new system's price, or it's cycling on and off without reaching set temperature. Other signals include visible corrosion or rust on the unit, unusual banging or kettling sounds, and radiators that are slow to heat up or unevenly warm.