HVAC
Indoor Air Quality Services in Greater Roanoke Area
Wisler Plumbing, Heating, Cooling & Electric
Improve the air you breathe with proven indoor air quality services for your home. Our NATE-certified technicians deliver transparent options and clear upfront pricing. We serve the Greater Roanoke Area, including Roanoke, Salem, and Martinsville. Homeowners trust us for our 4.9 rating from 3,938 reviews and our 100% satisfaction guarantee. Tell us your top concern and we will recommend the right solution.
Why Choose Us
NATE-certified experts
NATE-certified HVAC technicians on every job
Since 1986 locally owned
Serving the community for over 35 years
Transparent upfront pricing
Clear options with no hidden fees
Proven 5-star reputation
4.9 rating from 3,938 reviews
Award-winning team
Virginia Business Best Places to Work 2024; Angi Super Service Award
What you can expect to pay
Indoor Air Quality Services jobs cost $672 to $1,953, depending on the work. Each job type is broken down below.
Repair
Project gallery
Indoor Air Quality Services projects
(view full-size photo)With a friendly in-home inspection, Wisler Plumbing, Heating, Cooling & Electric helps homeowners understand comfort issues before they grow.
Rocky Mount, VA
(view full-size photo)Wisler Plumbing, Heating, Cooling & Electric helps homeowners feel confident with a friendly in-home HVAC inspection.
Rocky Mount, VA
(view full-size photo)Wisler Plumbing, Heating, Cooling & Electric helps homeowners feel confident with a friendly filter check that supports clean, efficient indoor air.
Rocky Mount, VA
(view full-size photo)Wisler Plumbing, Heating, Cooling & Electric shows a friendly technician carefully replacing an air filter to help keep indoor air cleaner.
Rocky Mount, VA
Reviews
What Our Customers Say
Customers mention
- professionalism1
- transparency1
- quality1
Based on the reviews shown here.
Polite, professional and HONEST service.
Brad C.Clear pricing and options before any work.
Manny A.On time, thorough, and very respectful.
Britney C.
Where should HVAC UV light be installed near the evaporator coil?
HVAC UV light should be installed inside the air handler with direct line-of-sight to the evaporator coil and drain pan, typically on the supply plenum just downstream of the coil. This spot targets the coil surface where moisture can let biofilm grow and degrade airflow and efficiency. On many systems, mounting the lamp on the plenum wall so the beam washes the entire coil face works best; on horizontal units, aiming from above helps reach the pan edges that stay damp. We handle this placement routinely for homeowners across the Roanoke area.
For correct setup, technicians verify:
- Unobstructed sightline to the coil and pan
- Safe distance from plastics, wiring, and the blower assembly
- Service access for lamp replacement without removing the coil
- Proper labeling and a switched or interlocked power feed per manufacturer instructions
Always shut off power at the disconnect and let the blower stop before opening the air handler.
Updated: 2026-10-01
Need help in Cave Spring, VA? Call (540) 238-0320 or book online.
How much does whole-house humidifier installation typically cost?
Whole-house humidifier installation pricing depends on your home and HVAC setup. We provide a same-day, fixed-price estimate after an in-home evaluation.
What affects cost:
- Unit type and size (bypass vs. fan-powered)
- Compatibility with your existing furnace/ducts
- Water line, drain, and control wiring needs
- Access to ductwork and mounting location
- Optional maintenance add-ons
Our local HVAC team serves Rocky Mount and Roanoke and can assess humidity needs during a Without Worry Comfort Check. You’ll get a written report card of findings and recommendations.
Updated: 2026-01-02
Need help in Rocky Mount, VA? Call (540) 234-2001 or book online.
How much does professional air duct cleaning service cost?
Professional air duct cleaning costs vary by home size, duct layout, and contamination level; final pricing is confirmed after an on-site assessment. The biggest cost drivers are how many supply and return vents you have, total duct length, and how accessible the ducts are. As technicians, we often see that sealing obvious duct leaks lowers dust and improves airflow more than a one-time cleaning. We offer indoor air quality solutions and air duct sealing, with findings explained and documented through our Comfort Check report card. Our team serves the Roanoke Valley with maintenance that includes inspection and cleaning steps that support healthier air.
Price commonly changes with:
- Number of registers and returns included
- Type/amount of debris (pet hair, renovation dust, suspected microbial growth)
- Access challenges (attic or crawlspace runs, tall ladders, tight chases)
- Add-on tasks requested (sanitizers, coil or blower cleaning, dryer vent service)
Schedule an inspection and ask for a written scope so you can compare cleaning versus sealing on true, itemized terms.
Updated: 2026-02-25
Need help in Salem, VA? Call (540) 238-0320 or book online.
How much does it cost to install UV lights in HVAC systems?
Most installations require an in-home assessment, so UV light install costs are confirmed after inspection. Pricing varies by system size, access to the air handler, number of lamps, and any wiring or controls needed. In Roanoke and Rocky Mount, our HVAC team can recommend indoor air quality solutions during a Without Worry Comfort Check and provide a written, fixed quote before work begins.
- Expect a same-day, on-site estimate during your IAQ visit.
Updated: 2026-01-02
Need help in Rocky Mount, VA? Call (540) 234-2001 or book online.
How much does it cost to install UV light in an HVAC system?
The cost to install a UV light in an HVAC system varies and is only confirmed after an on-site inspection. Prices change most with lamp type and placement, labor access to the air handler, and any needed electrical work. UV can help with coil cleanliness and certain microbes, but it’s one option among indoor air quality solutions; we also improve IAQ through air duct sealing and routine maintenance that includes cleaning and system tune-ups. Our technicians serve local homes regularly and will size any add-on so it fits the system without hurting airflow.
Common cost drivers your technician will verify:
- Single- vs. dual-lamp assemblies and whether it targets the coil or air stream
- Accessibility of the unit and sheet metal modifications
- Power supply location, switch, and wiring needs
- Brand features, replacement bulb life, and warranty terms
Ask a licensed HVAC pro to evaluate your system and give a written, all-in price before you decide.
Updated: 2026-03-13
Need help in Cloverdale, VA? Call (540) 238-0320 or book online.
Can an air purifier be repaired if the UV bulb stops working?
Yes. A nonworking UV bulb is often fixed by replacing the lamp after confirming the unit has power and the safety controls are working. If it still won’t light, a technician should diagnose the power supply and wiring. Wisler offers indoor air quality solutions and can evaluate your system as part of our Without Worry Comfort Checks, which include inspection, cleaning, adjustments, and a written report. We serve Roanoke and surrounding areas.
Updated: 2026-01-02
Need help in Rocky Mount, VA? Call (540) 234-2001 or book online.
We serve the Greater Roanoke Area, including Roanoke, Salem, and Martinsville. See the full list of communities we visit below.
Service area
Where We Work
- Fincastle, VA
- Cave Spring, VA
- Check, VA
- Penhook, VA
- Callaway, VA
- Salem, VA
- Rocky Mount, VA
- Bassett, VA
- Stanleytown, VA
- Union Hall, VA
- Fieldale, VA
- Shawsville, VA
- Huddleston, VA
- Glade Hill, VA
- Callands, VA
- Cloverdale, VA
- Sandy Level, VA
- Martinsville, VA
- Vinton, VA
- Thaxton, VA
- Copper Hill, VA
- Pilot, VA
- Goodview, VA
- Moneta, VA
- Boones Mill, VA
- Blue Ridge, VA
- Pittsville, VA
- Henry, VA
- Wirtz, VA
- Daleville, VA
- Bent Mountain, VA
- Collinsville, VA
- Ferrum, VA
- Elliston, VA
- Hardy, VA
- Roanoke, VA






























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