Commercial · Light Commercial HVAC in Festus, MO & Jefferson County
Light Commercial HVAC Service Built Around How Your Business Operates
Exactly what's wrong. Exactly what it costs. In writing.
Heating and cooling problems can interrupt a workday quickly. ExactAir provides light commercial HVAC service for offices, retail spaces, restaurants, churches, and other small commercial buildings, with documented findings, clear pricing, and work verified before the job is finished.
Veteran-Owned · Family-Owned · EPA Certified · Fully Insured · Est. 2025
HVAC Service for Small Businesses — Without the Corporate Runaround
ExactAir is an owner-operated HVAC company built for smaller commercial spaces that need responsive service and one person accountable for the work from diagnosis through completion.
Small Offices
Professional offices, medical suites, and small administrative buildings that need reliable comfort without a service contract sized for a corporate campus.
Retail Stores
Comfortable, consistent temperature for customers and staff, with maintenance scheduled around your open hours whenever possible.
Restaurants & Dining Spaces
Heating and cooling for the dining room and building — not the kitchen's refrigeration equipment, which stays with your refrigeration company.
Churches & Community Buildings
Dependable comfort for sanctuaries, fellowship halls, and meeting spaces, including work for organizations like Cedar Hill VFW Post 5331.
Small Shops & Commercial Buildings
Light commercial spaces that need a properly sized, tested system — not a residential unit stretched past what it's rated for.
New Construction & Buildouts
New commercial construction and tenant remodel projects, with the same testing and commissioning standard applied to every install.
Light commercial HVAC services in Jefferson County
From a new installation to an unexpected breakdown, ExactAir provides practical HVAC service for small commercial properties without adding unnecessary complexity.
Commercial Installation
New heating and cooling equipment for offices, retail spaces, and small commercial buildings, sized to the space and verified at commissioning — not sold off a price list.
Commercial Repair
Real diagnostics find the actual cause of a comfort problem or breakdown, with the exact findings and exact price shown before any repair starts — useful when you need a number for approval.
Commercial Replacement
When a system is done, you're shown the repair option and the replacement option side by side, with real pricing on each, so the decision is yours to make on the numbers.
Commercial Maintenance Plans
Scheduled tune-ups built around minimizing downtime — catching a failing part during a slow morning instead of during business hours on your busiest day.
New Construction & Tenant Buildouts
HVAC for new commercial construction and remodel or buildout projects, including duct design and fabrication sized to the finished space.
Performance Testing & Commissioning
Static pressure testing, air balancing, and refrigerant charge verification on every install — documentation you can hand to an owner, landlord, or insurer if it's ever asked for.
The ExactAir Method, applied to your business
The same six steps as any residential visit — written so a facility contact or owner can approve the work with confidence.
1 - 2
Exact Diagnosis & Findings
What’s actually wrong, backed by real readings — easy to relay to an owner who isn’t on site.
3 - 4
Exact Options & Pricing
Repair vs. replace, and a firm number for each, before work starts — built for internal approval, not surprise invoices.
5 - 6
Exact Testing & Verification
Performance checked against spec and confirmed before the job is called finished — documentation on file if you need it.
Why small businesses choose ExactAir
One accountable technician
The same person diagnoses the problem, does the work, and stands behind it — no handoffs between a sales rep and a rotating crew.
Pricing built for approval
Exact pricing before work begins means a number you can actually take to an owner or manager, not an estimate that shifts after the fact.
Scheduled around your hours
Maintenance and non-emergency work gets scheduled around your slower periods whenever possible, inside our 7am–7pm weekday hours.
Honest about scope
If a job needs a bigger crew or a specialty trade ExactAir doesn't cover, you'll hear that upfront — not after a wasted trip.
Serving businesses in Festus & Jefferson County, MO
ExactAir provides light commercial HVAC service throughout Jefferson County and surrounding communities, generally within about 45 minutes of Festus.
Good to know before you call
A trip fee applies past the standard service radius. Service inside St. Louis city and St. Louis County is currently limited, pending additional licensing there.
Light Commercial HVAC FAQs
Does ExactAir service large commercial or industrial buildings?
No. ExactAir focuses on light commercial spaces — small offices, retail stores, restaurants, churches, and similar buildings. Large industrial facilities, high-rises, and multi-tenant complexes with dedicated facilities staff fall outside our current scope, and we’ll say so upfront rather than take on a job we can’t run right.
Can you schedule commercial HVAC work around our business hours?
Usually, yes. ExactAir’s standard hours are Monday through Friday, 7am to 7pm, and we’ll work with you to schedule maintenance or non-emergency work during your slower hours inside that window. For anything that can’t wait, 24/7 emergency service is available.
Do you work on commercial refrigeration, like walk-in coolers or ice machines?
No. ExactAir handles the heating and cooling systems that keep a building comfortable — not commercial refrigeration equipment like walk-in coolers, reach-ins, or ice machines. If your building needs both, we’re glad to work alongside your refrigeration company.
What kinds of businesses does ExactAir work with?
Small offices, retail stores, restaurants and dining spaces, churches, and other light commercial buildings throughout Festus and Jefferson County — generally spaces where one accountable technician, not a large crew, is the right fit.
Do you handle HVAC for new construction or tenant buildouts?
Yes. ExactAir installs heating and cooling for new construction and remodel or tenant buildout projects, with the same commissioning and testing standard applied to every install.
Get a Straight Answer Before Your Business Commits to HVAC Work
Know what the system needs, what the work involves, and what it will cost before the job moves forward.
Hours: Monday–Friday, 7am–7pm · 24/7 emergency service available
