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Innovative New Homes in St. Louis Demonstrate a Scalable Path to High-Quality, Attainable Housing 

Innovative New Homes in St. Louis Demonstrate a Scalable Path to High-Quality, Attainable Housing 

Unico Inc. and CertainTeed collaborate to bring sustainable, precision-manufactured homes to the City 

St. Louis, MO (May 12, 2026) — St. Louis will soon have the first ONE PRECISION ASSEMBLIES™ (OPA) homes west of the Mississippi River. Unico Inc., an innovative HVAC manufacturer based in St. Louis, is collaborating with building-material expert CertainTeed to construct two OPA homes this month in North City.

OPA, developed by CertainTeed, is an innovative panelized construction system using factory-built floor, wall, and roof assemblies to build high-performance homes. The offsite construction significantly accelerates timelines while improving build quality, consistency, and energy performance. What’s more, these OPA homes have been engineered in collaboration with Unico — a leader in high-efficiency HVAC systems — to combine the high-performance benefits of both systems into affordable, low-energy usage homes for local families.

As the United States faces a severe housing shortage of approximately 4.7 million units, offsite construction methods are gaining traction. This is vital to a market like St. Louis, where significant housing challenges persist around supply at attainable price points. Homes cost roughly 5.5 times the median household income, putting homeownership out of reach for many St. Louisans. The partnership between building-envelope innovator CertainTeed and HVAC expert Unico demonstrates how OPA can provide a solution, with high-quality, attainable housing.

“This St. Louis project reflects a shift from ‘build fast and cheap’ to ‘build smarter, perform better, and reduce long-term costs,’” explained Scott Intagliata, owner and Chief Marketing Officer of Unico, Inc. “With this collaboration, CertainTeed and Unico are demonstrating how a home-building partnership can deliver integrated systems that boost performance, increase efficiency, and improve long‑term affordability.”

The two OPA homes will be constructed on North Euclid Avenue in the Mark Twain neighborhood. OPA’s precision manufacturing makes it possible to build efficiently on tight urban lots, with fewer deliveries, less waste, shorter construction periods, and less disruption for neighbors and the surrounding community.

“St. Louis presents a unique opportunity to address housing supply through vacant-lot development,” said Dennis Michaud, Managing Director at CertainTeed. “This collaboration with Unico will produce real‑world results in the very near future: faster construction, more efficient use of land, and homes that are both attainable and high‑performing.”

With this St. Louis OPA pilot program, CertainTeed and Unico offer a replicable model for other markets — one that strengthens housing availability, accelerates build speed, and supports long‑term affordability across communities. This is particularly important as the “new construction premium” (how much more people pay for a new home than one that’s already been lived in) recently skyrocketed to 202.7 percent in St. Louis’ dense urban areas

Other benefits of the OPA system include:

Faster Timelines, Minimized Risk: According to the National Institute of Building Sciences, modular and panelized construction methods can deliver time savings of 30-50% compared to traditional construction approaches. Plus, by reducing job site complexity, OPA helps builders and developers mitigate cost overruns, labor shortages, and weather delays.
Superior Craftsmanship & Quality: Each floor, wall, and roof panel is precision-manufactured to meet local building codes and builder specifications, eliminating guesswork and variability.
Engineering for High Performance: OPA homes are engineered for superior energy efficiency and can be up to 50% more efficient than traditional construction. Airtight and moisture-managed assemblies prevent air leaks and water intrusion, improving structural integrity and indoor comfort.
Sustainability: Precision manufacturing minimizes material waste, while fewer deliveries to the jobsite help reduce transportation-related emissions, further boosting the home’s overall sustainability profile.


To access visual assets for the OPA homes, including renderings, please click here. Interior finishing will continue through early summer, with public open houses planned for mid-July. To arrange an interview with a Unico or CertainTeed spokesperson or to schedule a site visit, please contact Brooke Foster at [email protected].

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 ¹United States Chamber of Commerce, "The State of Housing in America," updated March 3, 2026
²CapRateCity, "Cost of Living & Affordability: St. Louis, MO," updated 2026
³ Realtor.com, "New-Construction Insights: Urban New Builds Are Scarce and Expensive," May 2026 

 

About Unico Inc.

Unico, Inc. is the leader in Small-Duct High Velocity (SDHV) heating and cooling systems and other high-end HVAC systems. The company manufactures all of its products in St. Louis, Missouri, with over 125,000 square feet of modern manufacturing space. The company is well known for extensive use in older, architecturally unique homes and buildings as well as elite, high-end custom homes. The company is family owned and operated and is available throughout the United States and Canada, and in over 28 countries around the world.



About CertainTeed

With innovative building solutions made possible through its comprehensive offering of interior and exterior products, CertainTeed is transforming how the industry builds. As leaders in building science and sustainable construction, CertainTeed makes it easier than ever to create high-performance, energy-efficient places to live, work and play, so that together we can make the world a better home. 

A subsidiary of Saint-Gobain, one of the world’s largest and oldest building products companies, CertainTeed has more than 6,900 employees and more than 60 manufacturing facilities throughout the United States and Canada. www.certainteed.com 

About Saint-Gobain

Worldwide leader in light and sustainable construction, Saint-Gobain designs, manufactures and distributes materials and services adapted to the residential, non-residential and infrastructure markets. Its integrated and innovative solutions provide sustainability, performance and well-being for its customers. The Group is guided by its purpose, “MAKING THE WORLD A BETTER HOME”.

  • €46.5 billion in sales in 2025
  • 162,000 employees, locations in 80 countries
  • Committed to achieving net zero carbon emissions by 2050

 

How HVAC Can Help Protect Historic Buildings and the History Inside Them

How HVAC Can Help Protect Historic Buildings and the History Inside Them

Historic preservation is often associated with restoring architecture, maintaining original materials, and preserving the character of older buildings. But one of the greatest threats to historic properties is not always visible.

Humidity can quietly damage historic documents, furnishings, finishes, and artifacts long before structural issues become apparent.

That was the challenge facing the Harry S. Truman Little White House in Key West.

The Challenge at the Truman Little White House

Built in 1890, the Truman Little White House remains one of the most historically significant properties in Florida. Before installing The Unico System, the home struggled with excessive humidity that was beginning to impact historic documents and artifacts connected to President Truman’s legacy.

Like many historic buildings, the property was never designed to accommodate modern HVAC systems. Installing conventional ductwork would have required invasive structural modifications that could compromise the building’s historic integrity.

The challenge was clear: how do you improve indoor comfort and humidity control without disrupting the architecture that makes the building historically important?

Why Humidity Control Matters in Historic Preservation

In historic properties, humidity is more than a comfort issue. It is a preservation issue.

Poor humidity control can damage historic documents and photographs, warp wood furnishings and finishes, deteriorate plaster and architectural materials, and contribute to mold growth and long-term structural issues.

For museums, historic homes, and preservation projects, maintaining stable indoor conditions is essential to protecting both the building and the artifacts inside it.

The Unico System Solution

To solve the problem, the Truman Little White House installed The Unico System, a small-duct, high-velocity HVAC solution designed specifically for retrofit applications and historic homes.

Because of its compact and flexible design, The Unico System was able to minimize disruption to the historic structure, conceal system components within existing spaces, deliver enhanced humidity control, and preserve the architectural integrity of the home.

Unlike conventional HVAC systems that require large ductwork and major structural changes, The Unico System integrates into older buildings with minimal visual impact.

The result was improved indoor comfort and humidity control while helping protect the historic documents and artifacts housed within the property.

HVAC Plays a Critical Role in Preservation

Historic preservation is not just about protecting buildings from visible deterioration. It is also about creating stable indoor environments that help preserve the history inside them.

That is why HVAC system design matters in historic renovation projects.

The right system can help protect sensitive materials and collections, improve comfort for occupants and visitors, preserve architectural details, and reduce the need for invasive structural changes.

For historic buildings where preservation and performance must work together, retrofit-friendly solutions like The Unico System provide a practical path forward.

Learn More

Read the full Truman Little White House case study to see how The Unico System helped protect one of America’s historic properties while preserving its architectural integrity.

https://unicosystem.com/case-study/truman-white-house/

From No Ductwork to Total Comfort: A Contractor’s Perspective on The Unico System 

From No Ductwork to Total Comfort: A Contractor’s Perspective on The Unico System 

From No Ductwork to Total Comfort: A Contractor’s Perspective on The Unico System 

Featuring insights from Andrew La Posta, Fraser Hillis, and Steve Crozier of Woodbridge GTA ClimateCare, Unico Preferred Contractor (Greater Toronto Area) 

 

Comfort shouldn’t come at the expense of your home’s design. 

Yet for many homeowners, especially those in older or historic homes, adding modern air conditioning often means compromising aesthetics, space, or both. 

That’s the challenge contractors like Woodbridge GTA ClimateCare, a Unico Preferred Contractor in the Greater Toronto Area, solve every day. 

Their approach? Delivering high-performance comfort using The Unico System—a solution designed specifically for homes where traditional HVAC falls short. 

 

The Challenge: Cooling Homes That Weren’t Built for It 

Across Canada, many homes were built without central air conditioning and without the ductwork needed to support it. 

For homeowners, that creates a difficult trade-off: 

  • Install bulky ductwork and alter the home’s design 
  • Rely on inconsistent or incomplete cooling solutions 
  • Or go without proper comfort altogether 

“A lot of these homes have no ductwork, and homeowners don’t want bulkheads or anything that compromises the design,” says Andrew La Posta, President of Woodbridge GTA ClimateCare.  

 

Why Traditional HVAC Systems Fall Short 

Conventional systems are designed for homes that already have space for large duct runs. 

In retrofit applications, they often: 

  • Require intrusive construction 
  • Struggle to evenly distribute air 
  • Fail to address problem areas like second floors 

For contractors, this limits what’s possible. 
For homeowners, it limits comfort. 

 

The Unico System: Designed for Retrofit Applications 

The Unico System takes a fundamentally different approach. 

By using small, flexible ductwork and high-velocity airflow, it enables contractors to install central air conditioning in spaces where traditional systems simply cannot fit. 

“We can add a fully ducted system… and by the end of it, the homeowner doesn’t even know we were there,” says Andrew La Posta.  

Key advantages include: 

  • Minimal disruption to walls, ceilings, and finishes 
  • Installation primarily through attics or existing cavities 
  • Discreet outlets that blend seamlessly with the home 

 

Solving One of the Most Common Comfort Problems 

Even in homes with existing HVAC systems, comfort issues persist—especially on upper floors. 

“We’ll install Unico as a supplemental system… when the existing system can’t reach upper floors,” explains Andrew La Posta.  

As climate patterns shift and temperature spikes become more common, these limitations are becoming more noticeable. 

 

Performance Homeowners Can Feel—Not Hear 

One of the most common misconceptions about high-velocity systems is noise. 

In reality, system performance depends on proper design and installation. 

“If it’s designed and installed properly, it’s not noisy—it’s more of a comfort sound,” says Steve Crozier, who manages customer relationships for Woodbridge GTA ClimateCare.  

Many homeowners are surprised by how quiet the system is, often noticing comfort first, rather than sound. 

 

Precision Installation Requires Specialized Expertise 

The Unico System is not a conventional HVAC solution—and that’s intentional. 

Delivering optimal performance requires: 

  • Accurate system design and sizing 
  • Trained, experienced installers 
  • Attention to detail in challenging environments 

“Not just anyone can install or service a Unico System—you need to be trained properly,” says Andrew Laposta.  

That’s why Unico works closely with a network of Preferred Contractors who are trained to deliver consistent, high-quality results. 

 

Supporting Contractors, Delivering Better Outcomes 

For contractors, choosing the right system is only part of the equation and support matters. 

“One of the big reasons we choose Unico… is the support. It’s been A+,” says Fraser Hillis, who leads sales for Woodbridge GTA ClimateCare.  

This partnership ensures: 

  • Responsive technical assistance 
  • Ongoing training and education 
  • Confidence in solving complex installations 

 

Built for Long-Term Comfort 

A properly installed Unico System is designed to perform for years to come but long-term comfort goes beyond installation. 

“We don’t just want to sell you a system—we want to be your HVAC partner for the next 10–20 years,” says Steve Crozier.  

That commitment reflects what homeowners truly value: 

  • Service they can rely on 
  • A contractor who stands behind their work 
  • A system built to last 

 

A Better Way to Deliver Comfort 

Not every home is built for traditional HVAC but every homeowner expects comfort. 

The Unico System provides a solution that aligns with both modern expectations and existing home design. 

For contractors, it opens the door to solving problems others can’t. 
For homeowners, it delivers comfort—without compromise. 

About Woodbridge GTA ClimateCare 

Woodbridge GTA ClimateCare is a Unico Preferred Contractor serving the Greater Toronto Area, specializing in HVAC solutions for retrofit and historic homes. With decades of combined industry experience, their team focuses on delivering long-term comfort through expert installation, homeowner education, and ongoing service. 

Known for their ability to solve complex installation challenges—particularly in homes without existing ductwork—Woodbridge GTA ClimateCare partners with The Unico System to provide high-performance, minimally invasive comfort solutions that preserve the integrity of each home. 

Indoor Air Quality Is the New Luxury: Why Homeowners Are Prioritizing IAQ in 2026

Indoor Air Quality Is the New Luxury: Why Homeowners Are Prioritizing IAQ in 2026

The Definition of Comfort Has Changed

For decades, comfort in a home meant one thing: temperature.

But in 2026, that definition has evolved.

Homeowners are no longer satisfied with simply being warm in the winter and cool in the summer. They want cleaner air, balanced humidity, and a healthier indoor environment. In other words, indoor air quality (IAQ) has become the new standard of luxury.

And HVAC systems are at the center of that shift.

Why Indoor Air Quality Is a Top Priority

Several major trends are driving the surge in IAQ demand.

Increased Awareness of Health and Wellness

Homeowners are more informed than ever about how indoor air affects allergies, asthma, sleep quality, respiratory health, and overall well-being. With people spending up to 90 percent of their time indoors, the quality of that air matters more than ever.

Tighter Homes and Poorer Ventilation

Modern homes are built to be energy efficient, which often means they are tightly sealed.

While that reduces energy loss, it also traps pollutants indoors, limits fresh air exchange, and increases humidity issues. Without the right HVAC system, air can quickly become stale and unhealthy.

Rising Demand for Whole-Home Comfort

Today’s homeowners are thinking beyond single-room solutions. They want even temperatures throughout the home, consistent humidity control, and clean, filtered air in every space.

This shift is pushing HVAC systems to do more than ever before.

What Poor IAQ Actually Looks Like

Many homeowners do not realize they have an air quality problem.

Common signs include hot and cold spots, excess humidity or dryness, persistent dust, musty odors, and worsening allergy symptoms.

These are not just inconveniences. They are indicators that the HVAC system is not properly managing airflow and air quality.

How HVAC Systems Impact Indoor Air Quality

Your HVAC system is more than just heating and cooling. It is the lungs of your home.

A well-designed system should continuously circulate air, remove excess humidity, filter out pollutants, and deliver fresh, evenly distributed air.

But not all systems are created equal.

Why High-Velocity HVAC Systems Are Changing the IAQ Conversation

This is where systems like The Unico System stand out.

Unlike traditional HVAC systems that rely on large ducts and slow airflow, The Unico System uses small ducts and aspiration technology to deliver air more effectively.

Key advantages include superior dehumidification that helps prevent mold growth, musty odors, and sticky indoor environments. Even air distribution eliminates hot and cold spots and reduces stagnant air pockets. Continuous air movement helps reduce dust, allergens, and pollutants. Air is delivered quietly and evenly, creating a more comfortable environment without noticeable airflow.

IAQ Upgrades Homeowners Are Investing In

Alongside advanced HVAC systems, homeowners are increasingly adding high-efficiency air filtration, UV air purification systems, whole-home humidifiers and dehumidifiers, energy recovery ventilators and heat recovery ventilators, and smart IAQ monitoring systems.

These technologies work best when paired with a system designed to properly move and condition air throughout the home.

As indoor air quality becomes a greater priority, ventilation is also gaining attention. Energy recovery ventilators and heat recovery ventilators are designed to bring fresh outdoor air into the home while exhausting stale indoor air without sacrificing energy efficiency.

They introduce fresh, oxygen-rich air into tightly sealed homes, remove stale air and indoor pollutants, help maintain balanced humidity levels, and improve overall indoor air freshness and comfort.

In today’s energy-efficient homes, where natural ventilation is limited, these systems play a critical role in maintaining a healthy indoor environment.

Ventilation systems are most effective when paired with an HVAC system that can properly distribute and condition that fresh air. By combining fresh air ventilation with advanced air distribution, humidity control, and filtration, homeowners get a complete indoor air quality solution instead of isolated upgrades.

The Unico System pairs with all major ERV and HRV brands, giving contractors and homeowners flexibility while ensuring the entire system works together seamlessly.

IAQ as a Luxury Feature in Modern Homes

What used to be considered extra is quickly becoming expected, especially in custom homes, renovations, and high-end residential builds.

Indoor air quality is now viewed the same way as high-end finishes, smart home technology, and energy efficiency. It is not just about comfort. It is about quality of life.

The Bottom Line

In 2026, HVAC is no longer just about temperature. It is about creating a healthier indoor environment.

Homeowners who invest in better indoor air quality are not just improving comfort. They are investing in their long-term well-being.

And the systems that can deliver quiet, consistent, and clean air throughout the home are leading the way forward.

The Unico System MythBusters: What Contractors, Architects, and Builders Need to Know

The Unico System MythBusters: What Contractors, Architects, and Builders Need to Know

What Contractors, Architects, and Builders Need to Know About The Unico System

When it comes to specifying or installing a high-performance HVAC system, misconceptions can slow projects down or lead to missed opportunities. That’s especially true with The Unico System, a high-velocity HVAC solution that works differently than traditional systems.

To clear things up, we spoke with Joe, a Customer Service Representative at Unico, Inc., who has been with the company since 2011. From working on the factory floor to supporting professionals in the field, Joe has seen firsthand the most common questions and myths surrounding The Unico System.

Here’s what he had to say.

Myth #1: The Unico System Can’t Be Zoned

One of the first questions Joe hears from contractors and builders is about zoning.

The truth: The Unico System can absolutely be zoned, with up to three zones per system.

For homeowners, that means better temperature control in different areas of the home. For professionals, it opens up more flexibility when designing comfort solutions for custom builds and retrofits.

Myth #2: High-Velocity HVAC Systems Are Noisy

Noise is a common concern, especially from homeowners who may not be familiar with high-velocity systems.

The truth: When installed correctly by a Unico Preferred Contractor, The Unico System is whisper-quiet.

Proper design and installation are key. With the right approach, the system delivers strong performance without disruptive noise often associated with older HVAC technologies.

Myth #3: It Works Just Like Traditional HVAC

Many building professionals assume installing The Unico System is similar to conventional HVAC systems.

The reality: It operates differently and more efficiently in key ways.

One major difference is the colder evaporator coil, which allows the system to remove up to 30% more humidity from the air.

That means:

  • Improved indoor comfort
  • Better moisture control
  • A more pleasant living environment, especially in humid climates

Myth #4: Airflow Needs to Match Conventional Systems

Another common misconception is that airflow requirements are the same as traditional systems.

The truth: The Unico System uses 250 CFM per ton, compared to 400 CFM per ton in conventional HVAC.

This difference means:

  • No need to oversize trunk lines
  • More efficient air delivery
  • Greater flexibility in tight or retrofit space

Myth #5: Product Options Are Limited

Even experienced professionals are sometimes surprised by available configurations.

Joe puts it simply:

“Yes, we do make a right-hand discharge unit.”

Understanding the full range of system options can make installation easier and help solve design challenges on complex projects.

Why It Pays to Understand The Unico System

After more than a decade of experience, Joe’s advice is straightforward:

The better you understand how The Unico System works, the better results you will deliver.

Partnering with a Unico Preferred Contractor ensures the system is installed and configured properly, maximizing comfort, efficiency, and performance.

Take Your Knowledge Further with Unico University

For professionals looking to deepen their expertise, Unico University provides:

· Product education and system design insights

· Installation best practices

· Training resources built for real-world applications

Whether you are new to The Unico System or looking to refine your skills, these programs help you deliver better outcomes for your clients.

The Unico System is not just another HVAC option. It is a different approach to comfort. And like any specialized system, understanding how it works is the key to unlocking its full potential.

By separating myth from reality, contractors, architects, and builders can confidently specify and install a system that delivers quiet operation, superior humidity control, and flexible design.