
When building a new home or completing a major remodel, the right HVAC system can make all the difference in long-term comfort, energy efficiency, and cost savings. At Galmiche & Sons Heating & Cooling, our team specializes in furnace installation for new construction projects across the St. Louis area. With decades of experience and a commitment to quality craftsmanship, we help builders and homeowners design and install systems that perform reliably for years to come.
To learn more or schedule furnace installation services in St. Louis, contact us today.
Why Furnace Installation for New Construction Matters
Installing a furnace during the construction phase gives you the opportunity to optimize your heating system from the ground up. Proper furnace sizing, ductwork design, and energy efficiency considerations ensure your system operates smoothly and cost-effectively once your home is complete. Skipping key steps or rushing installation can lead to poor airflow, uneven heating, and higher utility bills down the road.
At Galmiche & Sons, we work closely with general contractors, architects, and homeowners to plan each installation carefully, ensuring every component works together for maximum performance.

Key Factors to Consider in a New Construction Furnace Installation
Choosing the Right Furnace Type
Selecting the best furnace for your new home depends on several factors, including home size, layout, and insulation. We offer high-efficiency gas furnaces, variable-speed models, and hybrid systems that balance comfort with cost savings. Our technicians help you choose the right model based on your home’s heating needs and long-term energy goals.
Learn more about natural gas vs. electric furnace installation.
Proper Furnace Sizing and Duct Design
One of the most common issues in new construction is improper system sizing. An oversized furnace can lead to short cycling and uneven temperatures, while an undersized unit may struggle to keep up during cold St. Louis winters. Galmiche & Sons performs precise load calculations to ensure the furnace is correctly matched to your home’s design and square footage. We also design duct systems to deliver consistent, balanced airflow throughout every room.
Energy Efficiency and Building Codes
New homes are built to tighter energy standards than ever before. We ensure every furnace installation meets or exceeds Missouri building codes and ENERGY STAR efficiency standards. Our installations are designed to support your overall energy goals and can be integrated with smart thermostats and zoning systems for added comfort and control.
Common Pain Points for Builders and Homeowners
Builders often face tight timelines and coordination challenges among subcontractors. Homeowners, on the other hand, want assurance that their investment will provide years of reliable comfort. At Galmiche & Sons, we address both needs through:
- Streamlined project coordination: We communicate directly with builders and project managers to ensure timely installation.
- Experienced technicians: Our team has extensive experience with all major furnace brands and installation requirements.
- Quality assurance: Every system is tested and inspected before project completion to verify optimal operation.
Learn more about why working with our furnace installation contractor is the right choice.
FAQs About Furnace Installation for New Construction
Furnace installation typically takes place after framing but before drywall, once ductwork can be properly routed. Scheduling early helps avoid delays and ensures smooth integration with other systems.
Yes, in fact, it’s often the best time to invest in a high-efficiency model since you can design the ductwork and venting to accommodate it. This helps maximize long-term energy savings.
After installation, annual maintenance is essential to keep your system running efficiently and to maintain warranty coverage. Regular tune-ups also prevent costly breakdowns.
Partner with St. Louis’ Trusted Furnace Installation Experts for New Construction Furnace Installs
For over 75 years, Galmiche & Sons has been the trusted name in HVAC installation and service throughout St. Louis. Whether you’re a builder managing multiple new homes or a homeowner designing your dream house, our team provides the expertise and reliability you need.
Contact us today to schedule a consultation or request an estimate for furnace installation for new construction in St. Louis. Let our experts help you design a system that delivers dependable performance and comfort for years to come.









