Skip to content
★ Zehnder America Certified Installer

Energy Recovery Ventilation in Central Virginia

Breathe cleaner air without wasting energy. HOLISTIQ is one of the few Zehnder-certified ERV installers in Virginia, bringing hospital-grade air quality to your home while recovering up to 95% of heating and cooling energy.

Get ERV Consultation (603) 777-2596
Indoor Air Quality

Zehnder ERV Systems for Healthier, More Efficient Virginia Homes

Energy recovery ventilation is the missing piece in most Virginia homes. Modern homes are built tighter than ever for energy efficiency, but that airtightness creates a new problem: stale indoor air. Without mechanical ventilation, moisture, carbon dioxide, cooking fumes, off-gassing from building materials, and allergens accumulate inside your home. Opening windows defeats the purpose of your insulation and HVAC system. An ERV solves this by continuously exchanging stale indoor air with filtered fresh outdoor air while recovering up to 95% of the heating or cooling energy that would otherwise be lost.

HOLISTIQ is certified by Zehnder America to design and install their premium ERV systems, widely regarded as the gold standard in residential energy recovery ventilation. Zehnder systems use a counterflow heat exchanger that transfers both heat and moisture between the outgoing and incoming air streams. In a Central Virginia winter, this means fresh outdoor air is pre-warmed by outgoing indoor air before it enters your home. In summer, the incoming air is pre-cooled. The result is continuous fresh air with minimal impact on your heating and cooling bills.

Josh Smith earned his Zehnder certification because he believes building performance is about more than just energy production. A home with solar panels and battery storage is still underperforming if the occupants are breathing stale, polluted indoor air. HOLISTIQ’s whole-building approach means we can design and install your solar system, battery storage, and ERV as an integrated package, or install any component individually as your budget and priorities allow.

Zehnder energy recovery ventilation unit installed in a Virginia home
How ERV Works

How Energy Recovery Ventilation Works

The ERV Exchange Process

Stale air exits from kitchens and bathrooms → Passes through the heat exchanger core → Transfers 90-95% of its heat/cool energy to incoming air → Fresh filtered outdoor air enters bedrooms and living areas → Continuous balanced ventilation with minimal energy loss

Zehnder systems recover up to 95% of heating and cooling energy while delivering HEPA-filtered fresh air to every room.

An ERV system works by running two parallel air streams through a heat exchanger core. One stream exhausts stale air from high-moisture rooms like kitchens, bathrooms, and laundry areas. The other stream brings in fresh outdoor air through a HEPA filter and distributes it to bedrooms, living rooms, and offices. As the two streams pass through the exchanger, the outgoing air transfers its temperature and moisture to the incoming air without the two streams ever mixing.

In Central Virginia’s climate, this means your ERV pre-warms incoming air in winter and pre-cools it in summer. During Virginia’s humid summers, the ERV also transfers moisture from the incoming air to the outgoing exhaust, reducing the humidity load on your air conditioner. The entire system runs continuously at a low speed, using about the same electricity as a 60-watt light bulb, while completely replacing your home’s indoor air every two to three hours.

Zehnder systems are whisper-quiet because they use small-diameter semi-rigid ductwork that runs through walls and ceilings with minimal air turbulence. Unlike standard HVAC ductwork, Zehnder tubes are smooth-walled and acoustically dampened. Most homeowners cannot hear the system operating, even when standing directly beneath a supply diffuser.

Benefits

Why Install a Zehnder ERV in Central Virginia

🌀

HEPA-Filtered Fresh Air

Every cubic foot of air entering your home passes through a HEPA filter that captures pollen, dust, mold spores, and particulate matter. For allergy sufferers and families with respiratory concerns, an ERV transforms indoor air quality. Central Virginia’s notorious pollen seasons become a non-issue indoors.

⚡

Up to 95% Energy Recovery

Zehnder’s counterflow heat exchangers recover up to 95% of the energy from exhaust air. This means your HVAC system works less because the incoming fresh air is already pre-conditioned. In Central Virginia’s climate with hot summers and cold winters, the energy savings are significant year-round.

💧

Humidity Control

Virginia summers bring extreme humidity that promotes mold growth and makes homes feel uncomfortable even with air conditioning. An ERV transfers moisture from incoming humid air to the outgoing exhaust, reducing your home’s humidity load. In winter, it retains indoor moisture to prevent the dry air problems common with forced-air heating.

🔇

Whisper-Quiet Operation

Zehnder’s small-diameter smooth-wall ductwork and EC motors produce virtually no noise during operation. The system runs 24 hours a day without disrupting sleep, conversation, or work. Most homeowners forget the system is running until they notice how much better their home smells and feels.

🏠

Protects Your Home

Excess moisture is the leading cause of structural damage in Virginia homes. An ERV continuously removes moisture-laden air from bathrooms and kitchens, preventing the condensation that leads to mold, mildew, and wood rot. This protection extends the life of your home’s structure, finishes, and furnishings.

✓

Zehnder Certified Installation

HOLISTIQ is certified by Zehnder America, meaning Josh has completed factory training on system design, ductwork layout, commissioning, and balancing. This certification ensures your system is installed to manufacturer specifications for optimal performance. Very few installers in Virginia hold this credential.

Installation Process

ERV Installation from Design to Commissioning

  1. 01

    Home Assessment and Design

    Josh evaluates your home’s layout, airtightness, existing HVAC system, and ventilation needs. For new construction, he works from architectural plans to design the ERV duct layout alongside the framing schedule. For retrofits, he identifies the best routing for Zehnder’s semi-rigid ductwork through existing walls and ceiling cavities. You receive a detailed proposal showing system specifications, duct routing, supply and exhaust point locations, and total project cost.

  2. 02

    Ductwork Installation

    Zehnder systems use proprietary small-diameter semi-rigid tubes that are easier to route through existing structures than traditional rectangular ductwork. Each supply and exhaust point gets its own dedicated tube run from the central ERV unit, creating a balanced star configuration. For new construction, tubes are installed during the rough-in phase before drywall. For retrofits, HOLISTIQ routes tubes through accessible ceiling and wall cavities with minimal disruption to finished surfaces.

  3. 03

    Unit Installation and Connection

    The Zehnder ERV unit installs in a utility room, basement, or attic space. Josh connects all supply and exhaust tubes to the unit, installs the fresh air intake and exhaust vent through the exterior wall, connects electrical power, and installs the control panel. Because Josh is a licensed electrician, all electrical connections are made to code without needing a separate electrician on site.

  4. 04

    Commissioning and Balancing

    After installation, HOLISTIQ commissions the system by measuring airflow at every supply and exhaust point, adjusting dampers to achieve balanced ventilation rates, verifying heat recovery efficiency, and testing all operating modes. This commissioning process is critical to Zehnder system performance and is one of the key reasons certified installation matters. You receive a commissioning report documenting airflow rates and system performance.

Service Area

ERV Installation Across Central Virginia

HOLISTIQ installs Zehnder ERV systems in new construction and existing homes throughout Central Virginia. We serve homeowners within a 100-mile radius of our Goode, Virginia headquarters.

Lynchburg Bedford Moneta Madison Heights Rustburg Evington Stewartsville Arlington Goode Smith Mountain Lake Forest Appomattox
Common Questions

Energy Recovery Ventilation FAQ

What is the difference between an ERV and an HRV?
Both ERV (Energy Recovery Ventilator) and HRV (Heat Recovery Ventilator) exchange stale indoor air with fresh outdoor air while recovering energy. The key difference is that an ERV transfers both heat and moisture, while an HRV transfers only heat. For Central Virginia’s climate with humid summers and moderately cold winters, an ERV is the better choice because it helps manage humidity in both seasons. The moisture transfer reduces summer dehumidification loads and prevents excessively dry air in winter.
Can an ERV be installed in an existing home?
Yes. While ERV installation is easiest during new construction when walls are open, Zehnder’s small-diameter semi-rigid ductwork is specifically designed for retrofit applications. The tubes are flexible enough to route through existing wall cavities, between floor joists, and through ceiling spaces with minimal disruption to finished surfaces. HOLISTIQ evaluates your home’s specific construction to develop the least-invasive installation plan. Most retrofit installations are completed in two to three days with minimal drywall repair needed.
How much does a Zehnder ERV system cost?
System cost depends on the size of the house, how many supply and exhaust points the design calls for, whether the job is new construction or a retrofit, and where the unit can physically go. New construction comes in leaner because we run the ductwork during the rough-in phase, while a retrofit means routing Zehnder’s small-diameter tubing through cavities that are already closed up. ERV systems may also qualify for energy efficiency tax credits and utility rebates, which moves your net number. We size the system off your building rather than off a catalog, and every proposal we hand over spells out the exact equipment and scope for your specific home. Call (603) 777-2596 for a free consultation.
How much maintenance does an ERV system require?
Zehnder ERV systems are very low maintenance. The primary maintenance task is replacing the intake filters every 6-12 months, which is a simple homeowner task that takes about five minutes. The heat exchanger core should be cleaned annually, which involves removing it from the unit and washing it with water. HOLISTIQ can include ERV maintenance in your annual service plan if you prefer professional maintenance. The system will alert you when filters need attention.
Will an ERV replace my air conditioning or heating system?
No. An ERV is a ventilation system, not a heating or cooling system. It works alongside your existing HVAC equipment to provide continuous fresh air while minimizing the energy penalty of ventilation. By pre-conditioning incoming air, an ERV reduces the workload on your HVAC system, which can lower utility bills and extend equipment life. Think of it as a complement to your heating and cooling system, not a replacement. Together with solar panels, an ERV helps create a complete high-performance home.
Why does Zehnder certification matter for ERV installation?
Zehnder ERV systems require precise duct sizing, careful routing, and meticulous commissioning to deliver their rated performance. An incorrectly installed ERV may provide ventilation but fail to achieve the 90-95% energy recovery that justifies the investment. Zehnder certification means Josh has completed factory training on system design, ductwork installation, and commissioning procedures. This ensures your system performs to specification from day one. Visit our gallery to see completed ERV installations in Central Virginia homes.

Breathe Better, Spend Less

Get a free ERV consultation from Central Virginia’s Zehnder-certified installer. Discover how energy recovery ventilation transforms your home’s air quality and efficiency.

(603) 777-2596 or Get ERV Consultation