School & Campus Bird Control in Marietta, Georgia. WD Pigeon Solutions provides professional school & campus bird control services for Marietta property owners, including multi-species effectiveness, commercial-grade deterrents, virtually invisible systems. Contact us for a free inspection in Marietta, Georgia.
School & Campus Bird Control in Marietta, Georgia
Safe, non-toxic bird control for schools, universities, and educational campuses that protects students and staff from pigeon hazards — trusted by Marietta property owners for lasting, humane results.

Last updated: January 28, 2026 · Reviewed by WD Pigeon Solutions pest control specialists
Why Marietta Property Owners Need Professional School & Campus Bird Control
Marietta property owners rely on our School & Campus Bird Control to eliminate pigeon roosting on window ledges and AC units and transit station platform canopies, restoring clean and safe building exteriors.
Marietta's parking garages are especially vulnerable to pigeon colonization because of proximity to food vendor carts and park bench gathering areas.
Occupational health studies confirm that prolonged exposure to pigeon waste in Marietta buildings can lead to allergic alveolitis, commonly known as pigeon breeder's lung, even in people who do not handle birds directly.
From initial survey to final walkthrough, our Marietta service is designed to deliver measurable results: fewer pigeons, less damage, and a cleaner property.
Owners of hotels and mixed-use developments face ongoing maintenance costs as pigeon guano accelerates the deterioration of painted surfaces, metal fixtures, and stonework.
During March through September, Marietta's urban heat-island climate with warm concrete corridors drives pigeons to seek sheltered rooftops and building cavities where warmth and food are nearby.
Proactive pigeon deterrence in Marietta starts with understanding that every accessible ledge is a potential nesting site—comprehensive coverage eliminates the trial-and-error that allows colonies to persist.
Call WD Pigeon Solutions to schedule your complimentary Marietta property assessment—our team will identify every problem area and recommend the right solution.

Where We Install School & Campus Bird Control in Marietta
Our Marietta team has installed school and campus bird solutions across all property types throughout Georgia.
High-Priority School & Campus Bird Control Locations in Marietta
These Marietta property types see the most urgent demand for professional school and campus bird.
Marietta Commercial buildings
Commercial buildings in Marietta are prime candidates for school and campus bird due to heavy pigeon pressure around decorative architectural ledges. Nearby transit station food kiosks draw flocks that quickly establish colonies.
Marietta Transit stations
School and Campus Bird is increasingly requested for transit stations in Marietta, particularly to protect window ledges and AC units and reduce contamination caused by outdoor dining areas.
Marietta Residential high-rises
Residential high-rises in Marietta combine sheltered loading docks with nearby public plazas with feeders, creating ideal conditions for persistent pigeon colonies that school and campus bird can address.
Marietta Commercial storefronts
Pigeon activity around commercial storefronts in Marietta frequently targets fire escapes, with park bench gathering areas sustaining flocks that cause droppings, nesting debris, and health concerns.
Marietta Restaurants and cafes
Restaurants and cafes face recurring pigeon pressure in Marietta. Colonies establish around decorative architectural ledges and are sustained by transit station food kiosks, making professional school and campus bird essential for long-term protection.
Marietta High-rise office towers
High-rise office towers in Marietta are prime candidates for school and campus bird due to heavy pigeon pressure around window ledges and AC units. Nearby outdoor dining areas draw flocks that quickly establish colonies.
Our School & Campus Bird Control Process in Marietta
Step 1: No-Cost Property Inspection in Marietta
We begin with a thorough walkthrough of your Marietta building, examining bridge abutments and overpasses and decorative architectural ledges for signs of pigeon habitation. Our technician photographs problem areas and measures the scope of activity around transit stations before recommending specific treatment.
Step 2: Property-Specific School and Campus Bird Blueprint
No two Marietta properties are alike. Whether you manage public transit infrastructure or entertainment venues, our plan targets the exact roosting and nesting behavior documented during inspection, with materials selected for Marietta's urban heat-island climate with warm concrete corridors.
Step 3: Systematic School and Campus Bird Deployment
Our Marietta crew works section by section through every mapped treatment zone. Each school and campus bird component is installed to manufacturer specifications, with special attention to high-pressure points around decorative architectural ledges and hospital and medical towers where pigeon activity is most intense.
Step 4: Quality Verification and Handoff
We walk you through every installed system on your Marietta property, confirming coverage on decorative architectural ledges and transit stations. You receive photographic documentation, warranty paperwork, and a maintenance guide specific to your building type.
Step 5: Long-Term Protection Commitment
Your Marietta school and campus bird investment is protected by our performance guarantee. Given the urban heat-island climate with warm concrete corridors and year-round pigeon pressure, our warranty ensures that any treated transit stations or decorative architectural ledges remains pigeon-free or we return to correct it.
Why Marietta Chooses WD Pigeon Solutions for School & Campus Bird Control
Choosing a school and campus bird partner in Marietta means finding someone who knows the local building stock. Our crews have treated transit stations, government office complexes, and everything in between — and that experience translates into faster, more effective installations on your property.
- Proven track record — successful school and campus bird projects across Marietta's public transit infrastructure, mixed-use developments, and government buildings
- Climate-matched materials — hardware selected specifically for Marietta's urban heat-island climate with warm concrete corridors
- Honest assessments — we recommend only what your property actually needs, not upsells
- Written performance guarantee — if pigeons breach any treated area, we return and fix it free
- Fast response — most Marietta property assessments scheduled within 48 hours
- Insured and licensed — full commercial coverage for every project
We've built our reputation in Marietta one successful school and campus bird project at a time. Our recommendations are based on what works for your specific public transit infrastructure or hotels — not a generic template applied to every property.
What Our Customers Say
Trusted by thousands of homeowners and businesses
“The dropping cleanup alone was worth calling them. They power-washed our entire building facade, treated everything with antimicrobial solution, and then installed spikes and wire to prevent the pigeons from returning. Building looks brand new.”
Mark Sullivan
Boston, MA · Dropping Cleanup & Sanitization
“I called about pigeons in my attic and they came out the same day. They removed over 30 nests, sanitized everything, and sealed every entry point. It's been six months and not a single pigeon has gotten back in. Incredible service.”
Maria Gonzalez
Houston, TX · Attic Pigeon Removal
“The pigeon problem at our apartment complex was out of control. Droppings everywhere, nests in every corner. The team installed bird netting and spikes across the entire building. Haven't seen a single pigeon in three months.”
Sarah Thompson
Las Vegas, NV · Bird Netting Installation
“Pigeons were destroying our hotel's pool area. Guests complained constantly about droppings on lounge chairs and in the water. The deterrent system they installed is invisible to guests but 100% effective. Our reviews have improved dramatically.”
Jennifer Williams
Miami, FL · Hotel Bird Management
“Our historic downtown building was being destroyed by pigeon droppings. The team used heritage-sensitive methods that don't damage the original architecture. The building looks beautiful again and the pigeons are gone. Excellent attention to detail.”
Andrew Campbell
Salt Lake City, UT · Historical Building Protection
“The bird spikes on our commercial building were long overdue. The installation team worked over a weekend to minimize disruption to our business. Clean, professional work and the pigeons are completely gone from our ledges.”
Thomas Rodriguez
San Antonio, TX · Bird Spikes Installation
“We needed our loading dock cleared of pigeons before a major FDA inspection. WD Pigeon Solutions responded within 24 hours, removed all nests, cleaned and sanitized the entire dock area, and installed deterrents. We passed the inspection.”
Steven Barnes
Dallas, TX · Loading Dock Bird Control
“I was skeptical about the pigeon birth control program, but the results speak for themselves. Our building's pigeon population has dropped by over 80% in eight months. It's the most humane and effective long-term solution I've seen.”
Amanda Nguyen
San Francisco, CA · Pigeon Birth Control (OvoControl)
“After three different companies failed to solve our pigeon problem, WD Pigeon Solutions got it done right. They did a thorough assessment, identified entry points we didn't even know existed, and sealed everything. Problem solved permanently.”
Lisa Anderson
Seattle, WA · Structural Exclusion
“We run a food processing plant and a pigeon infestation nearly shut us down. WD Pigeon Solutions mobilized a team the next morning. They cleared the facility, sealed every opening, and set up a monitoring program. We haven't had an issue since.”
Nicole Davis
Minneapolis, MN · Industrial Pigeon Control
“We had an emergency situation with pigeons getting into our medical clinic through a damaged vent. WD Pigeon Solutions arrived within hours, safely removed the birds, sanitized the area, and installed proper vent screens. Fast and professional.”
Samantha White
Columbus, OH · Emergency Pigeon Removal
“I had pigeons nesting in my chimney and could hear them cooing all night. The team installed a heavy-duty chimney cap and removed all the nesting material. No more noise, no more mess. Quick and affordable service.”
Patricia Martinez
Tucson, AZ · Chimney Cap Installation
“The balcony of our condo was unusable because of pigeons. They installed a custom netting system that's barely visible and matches our building's aesthetic. We can finally enjoy our outdoor space again. Thank you!”
Rachel Kim
Portland, OR · Balcony Pigeon Proofing
“We manage a grain storage facility and pigeons were consuming and contaminating tons of product annually. WD Pigeon Solutions designed a complete exclusion system for our silos and storage buildings. The contamination losses have dropped to zero.”
Kevin Morris
Detroit, MI · Agricultural Bird Control
“The property damage assessment they provided was incredibly detailed. We used it to file an insurance claim for the pigeon damage to our roof and HVAC system. The claim was approved and covered most of the repair and prevention costs.”
Gregory Adams
Indianapolis, IN · Property Damage Assessment
“Running a daycare with pigeons on the playground was a constant worry. WD Pigeon Solutions installed deterrents around the entire outdoor play area. The parents are relieved and the kids can play without pigeon droppings everywhere.”
Jessica Rivera
Orlando, FL · Pigeon Feces Disease Prevention
“Our school district hired WD Pigeon Solutions to address pigeon problems at three campuses. They handled everything—assessment, removal, cleanup, and prevention—across all locations. The kids and teachers are much happier without pigeons on the playground.”
William Turner
Nashville, TN · School & Campus Bird Control
“Pigeons were getting into our retail store through gaps in the roof every time the loading door opened. The strip curtain and exclusion system they installed solved both the pigeon and the temperature control problem. Highly recommend.”
Stephanie Clark
San Jose, CA · Retail Store Bird Solutions
“Our rooftop AC units were full of pigeon nests and the smell coming through the vents was terrible. WD Pigeon Solutions cleaned everything out, installed screening around all units, and the air quality improved immediately. Life-changing.”
Emily Watson
San Diego, CA · AC Unit Protection
“Third solar panel company told us we needed pigeon protection or they wouldn't honor the warranty. WD Pigeon Solutions installed critter guards on all 32 panels in one day. Clean work, fair price, and our warranty stays intact.”
Ryan Cooper
Scottsdale, AZ · Solar Panel Pigeon Protection
“Our wedding venue was losing bookings because of pigeons roosting on the ceremony pergola. The deterrent gel they applied is completely invisible but pigeons won't land on it. We've had four pigeon-free weddings since the treatment.”
Laura Scott
Tampa, FL · Pigeon Deterrent Gel
“The seasonal prevention program has been a game-changer for our property management company. WD Pigeon Solutions comes out quarterly, inspects all our properties, and addresses any issues before they become infestations. Proactive and reliable.”
Jason Patel
Henderson, NV · Seasonal Pigeon Prevention
“Pigeons had completely taken over our church steeple. The droppings were damaging our 100-year-old stonework. WD Pigeon Solutions used methods that protected the historic architecture while completely eliminating the pigeon colony. Truly expert work.”
Karen Phillips
Atlanta, GA · Church Steeple Protection
“Managing a 40-story office building with a pigeon problem is a nightmare. WD Pigeon Solutions brought in rope-access technicians who installed bird spikes on every ledge. The building looks clean for the first time in years. Our tenants are thrilled.”
David Park
Chicago, IL · Bird Spikes Installation
“We had pigeons nesting under every solar panel on our roof. WD Pigeon Solutions installed mesh guards around all 24 panels and cleaned up years of droppings. Our solar output increased by 15% after the cleanup. Worth every penny.”
James Mitchell
Phoenix, AZ · Solar Panel Pigeon Protection
“Our downtown restaurant was losing customers because of pigeons on the patio. WD Pigeon Solutions installed a nearly invisible netting system over our outdoor dining area. Customers love it and we passed our health inspection with flying colors.”
Robert Chen
Los Angeles, CA · Restaurant Pigeon Solutions
“The pigeon wire installation on our office building's ledges is invisible from the ground but incredibly effective. No more pigeons, no more droppings on the sidewalk below, no more complaints from visitors. Professional installation from start to finish.”
Megan Taylor
Raleigh, NC · Pigeon Wire Installation
“As a property manager for 12 commercial buildings, I've tried every pigeon control company in the area. WD Pigeon Solutions is the only one that delivers lasting results. They now handle all our properties and the tenants couldn't be happier.”
Daniel Jackson
Charlotte, NC · Commercial Bird Exclusion
“We tried every DIY pigeon solution on the market before calling WD Pigeon Solutions. Fake owls, shiny tape, sound machines—nothing worked. Their professional exclusion system solved the problem in one visit. Don't waste time with DIY. Call the pros.”
Heather Brown
Austin, TX · Residential Pigeon Control
“Our parking garage had a massive pigeon problem. Cars were getting damaged, tenants were threatening to leave. The electric track deterrent system they installed on every level was the only thing that worked. Zero pigeons now.”
Brian Foster
New York City, NY · Parking Garage Bird Control
“We own a warehouse and the pigeon situation was creating serious OSHA concerns. The team installed a comprehensive netting system across our 50,000 sq ft ceiling. The installation crew was professional and finished ahead of schedule.”
Michael O'Brien
Denver, CO · Warehouse Bird Control
“The gutter guards they installed are fantastic. Pigeons were constantly nesting in our gutters, causing water damage to our foundation. Now the gutters flow freely and there's no place for pigeons to nest. Should have done this years ago.”
Christopher Lee
Philadelphia, PA · Gutter Guard Installation
Common Pigeon Problems in Marietta That Require School & Campus Bird Control
Structures like commercial storefronts and apartment complexes in Marietta offer pigeons sheltered nesting sites, while entertainment district waste bins keep flocks well fed.
In Marietta, pigeon guano accelerates rust formation on steel structures and stains porous materials like brick and sandstone beyond the point of simple cleaning.
Beyond structural damage, pigeon infestations in Marietta raise public health concerns: dried droppings become airborne and can transmit fungal and bacterial infections to building occupants.
A pigeon flock that regularly exceeds a dozen birds on a Marietta rooftop is typically part of a larger colony, and the population will continue to grow without professional intervention.
Structural inspections of hotels and public transit infrastructure frequently reveal accelerated concrete spalling and steel corrosion in areas with heavy pigeon roosting.
During March through September, Marietta's urban heat-island climate with warm concrete corridors drives pigeons to seek sheltered rooftops and building cavities where warmth and food are nearby.

When to Schedule School & Campus Bird Control in Marietta
Timing your school and campus bird work with Marietta's seasonal pigeon patterns maximizes effectiveness.
Spring (Mar–May)
60–85°FNesting intensifies. Abundant warm-weather food sources fuel rapid population growth across the region.
Recommendation
Schedule a pre-season assessment before breeding pairs claim their territories.
Summer (Jun–Aug)
80–100°FContinuous breeding in hot, humid conditions. Pigeons seek shade under carports, awnings, and covered structures.
Recommendation
Inspect air handlers and exhaust vents monthly; summer heat accelerates guano-related corrosion.
Fall (Sep–Nov)
60–85°FPopulations remain large. Tropical weather events may displace flocks to new buildings.
Recommendation
Fall maintenance calls prevent winter populations from exceeding the area's carrying capacity.
Winter (Dec–Feb)
40–65°FMild winters allow nearly uninterrupted breeding. Colonies maintain size through the cool season.
Recommendation
December through February is an ideal window for large-scale netting and spike projects in the Southeast.
Marietta Weather and School & Campus Bird Control Timing
How Marietta's seasonal climate affects pigeon behavior and optimal school and campus bird scheduling.
| Season | Avg High | Avg Low | Precipitation | Pigeon Impact |
|---|---|---|---|---|
| Spring | 80°F | 59°F | 4.0 in/mo | Breeding accelerates with warming temps |
| Summer | 94°F | 75°F | 5.5 in/mo | Continuous breeding; shade-seeking behavior (peak activity: March through September) |
| Fall | 78°F | 58°F | 3.5 in/mo | Populations remain high; storm displacement |
| Winter | 60°F | 41°F | 3.8 in/mo | Mild enough for year-round breeding |
School & Campus Bird Control Facts Every Marietta Property Owner Should Know
School & Campus Bird Control Facts for Marietta Property Owners
- The average property owner waits months before addressing a pigeon problem — by which time populations have grown and structural damage to commercial storefronts has begun
- A single pigeon produces approximately 25 lbs of droppings per year — across a typical urban flock, restaurants and cafes in Marietta can accumulate hundreds of pounds of corrosive waste annually
- Professional school & campus bird control in Marietta typically costs far less than the accumulated damage from untreated pigeon infestations on restaurants and cafes
- In Marietta, pigeon breeding activity peaks during March through September, when the urban heat-island climate with warm concrete corridors supports rapid population growth and multiple nesting cycles per pair
- Pigeon guano near HVAC intakes on parking garages can distribute fungal spores throughout entire buildings, increasing respiratory health risks for occupants
- Properties with visible pigeon activity often experience reduced appeal and higher maintenance costs, making proactive school and campus bird a protection measure for public transit infrastructure owners
- Dried pigeon droppings become airborne particulate matter that can transmit histoplasmosis, cryptococcosis, and psittacosis — a particular concern for hotels in Marietta
- Pigeon nesting debris near electrical equipment and in fire escapes represents a fire hazard that proper school and campus bird eliminates
Our Services
Professional pigeon and bird control solutions tailored to your property and needs.

Pigeon Exclusion
Permanent physical barriers that prevent pigeons from roosting and nesting. Solar panel guards, building exclusion, and custom solutions for any structure.
Learn More
Bird Spike Installation
Professional bird spike installation for ledges, rooflines, signs, and parapets. Stainless steel spikes provide permanent, humane deterrence for any building type.
Learn More
Bird Control
Comprehensive bird deterrent solutions including spikes, netting, and exclusion systems. Protect your property from all pest bird species with lasting results.
Learn MoreSchool & Campus Bird Control in Marietta — Expert Pigeon Control
Watch how WD Pigeon Solutions delivers professional school and campus bird for Marietta, Georgia property owners.

Free Pigeon Control Tools
Use our interactive tools to assess your pigeon problem and find the right solution.
Infestation Severity Assessment
Answer a series of questions about your pigeon problem to determine the severity level and get recommended next steps for treatment.
Use ToolProperty Risk Evaluator
Evaluate your property's vulnerability to pigeon infestation based on building type, location, nearby food sources, and structural features.
Use ToolROI Calculator for Pigeon Prevention
Calculate the return on investment for pigeon prevention measures by comparing upfront costs against ongoing damage and cleanup expenses.
Use ToolService Area Finder
Enter your zip code or city to find the nearest WD Pigeon Solutions service area and get connected with local pigeon control experts.
Use ToolPigeon Species Identifier
Upload a photo or describe the bird you've spotted to identify the species and learn about its behavior, nesting habits, and control methods.
Use ToolDroppings Health Risk Checker
Assess the health risks associated with pigeon droppings at your property based on accumulation level, location, and exposure factors.
Use ToolDid You Know?
Fascinating pigeon facts that might surprise you.
Pigeons have been domesticated for over 5,000 years — they were the first bird humans ever domesticated.
Pigeon droppings carry over 60 transmittable diseases, including histoplasmosis and cryptococcosis.
A single pigeon produces about 25 pounds of droppings per year, which can corrode metal and damage building facades.
Feral pigeon populations can double in just 2 months under ideal conditions.
Pigeons can recognize all 26 letters of the English alphabet and can even be trained to distinguish between paintings by Monet and Picasso.
A flock of just 100 pigeons can produce over 2,400 pounds of droppings in a single year.
School & Campus Bird Control FAQ — Marietta, Georgia
Find answers to common questions about our pigeon control services.
School & Campus Bird Control Near Marietta
We also provide school and campus bird services throughout Georgia.
How It Works
Getting pigeon-free is easy. Just three simple steps.
Contact Us
Call us, fill out our form, or chat online. Describe your pigeon problem and we'll listen carefully.
Get Free Quote
We'll assess your situation and provide a detailed, no-obligation quote — completely free.
Schedule Service
Pick a time that works for you. Our licensed professionals will handle the rest — guaranteed.
Common Pigeon Infestations
Identify your pigeon problem and learn about effective solutions.
MediumBalcony & Patio Invasion
Pigeons roosting on balconies and patios leave droppings, feathers, and nesting debris that create unsanitary conditions and make outdoor spaces unusable.
Learn More
CriticalWarehouse & Commercial Infestations
Large commercial spaces attract massive pigeon flocks. Droppings contaminate inventory, create slip hazards, and can trigger health code violations and costly fines.
Learn More
CriticalSolar Panel Infestations
Pigeons nest under solar panels for warmth and shelter, damaging wiring, reducing energy output by up to 30%, and voiding manufacturer warranties.
Learn More
MediumParking Garage Roosting
Pigeons in parking structures damage vehicles with acidic droppings, create liability issues from slippery surfaces, and drive away customers and tenants.
Learn MoreSchool & Campus Bird Control Resources for Marietta
Everything you need to make an informed decision about school and campus bird in Marietta, Georgia.
All Marietta Pigeon Control
Complete pigeon management services in Marietta, GA.
School & Campus Bird Control Overview
Learn everything about our professional school & campus bird control solutions.
All Georgia Services
Browse all pigeon control service locations in Georgia.
Free Pigeon Control Tools
Use our interactive calculators and cost estimators.
Pigeon Prevention Guide
Expert tips for keeping pigeons away permanently.
Customer Reviews
Read what property owners across the US say about our work.
School & Campus Bird Control in Augusta
Professional school and campus bird services in Augusta, Georgia.
School & Campus Bird Control in Savannah
Professional school and campus bird services in Savannah, Georgia.
School & Campus Bird Control in Peachtree City
Professional school and campus bird services in Peachtree City, Georgia.
DIY vs. Professional Pigeon Control in Mariettaschool-campus-bird-control
| DIY Method | Effectiveness | Limitation |
|---|---|---|
| Ultrasonic devices | Minimal proven effectiveness | Most peer-reviewed studies show negligible impact on pigeon behavior |
| Sealing individual entry points | Effective for specific openings | Pigeons find alternative entry points without comprehensive exclusion |
| Bird gel or sticky repellent | Mildly effective on flat ledges | Collects dust and debris quickly, loses stickiness, and can trap small songbirds |
| Visual deterrents (fake owls, reflective tape) | Temporarily effective for 1-2 weeks | Pigeons quickly habituate and ignore them |
| Water sprinklers or motion sprays | Some short-term deterrence | Not practical for rooftops or upper ledges; water waste and maintenance cost |
Why Hire a Professional?
- Knowledge of local regulations regarding bird control methods
- Commercial-grade deterrent products last years, not weeks
- Proper installation ensures spikes, netting, and exclusion devices actually work
- Trained technicians understand flock behavior and seasonal breeding patterns
- Follow-up monitoring ensures pigeons do not relocate to other parts of your property
- Licensed and insured protection for your Mariettaschool-campus-bird-control property
Pigeon Control Cost Guide for Mariettaschool-campus-bird-control
Pricing depends on the scope of work needed. We provide transparent, itemized quotes after a complimentary property inspection so there are no surprises.
| Service | Pricing | Key Factors |
|---|---|---|
| Solar panel protection | Varies by system size | Number of panels, roof type, critter guard material |
| Initial inspection and assessment | Usually free | Most professional companies offer complimentary inspections |
| Bird spike installation | Varies by linear footage | Material type (plastic vs. stainless steel), height and accessibility of installation area |
| Ledge modification and slope panels | Varies by linear footage | Material (metal vs. PVC), angle of slope, number of ledges treated |
| Pigeon trapping and removal | Varies by scope | Number of pigeons, duration of trapping program, follow-up visits |
| Ongoing maintenance program | Monthly or quarterly retainer | Property size, severity history, number of deterrent systems maintained |
| Dropping cleanup and sanitization | Varies by area and accumulation | Square footage, depth of accumulation, accessibility, disposal requirements |
Other Pigeon Control Services in Marietta
Explore additional pigeon control services we offer in Marietta, Georgia:
WD Pigeon Solutions Quality Assurance Team
Our QA specialists reviewed this content for technical accuracy based on current industry standards. Our team maintains active certifications through Bird Barrier, the National Wildlife Control Operators Association (NWCOA), and state pest control licensing boards.
Ready for Professional School & Campus Bird Control in Marietta?
Get your free, no-obligation quote from Marietta's trusted pigeon control experts.