Commercial Furnace Repair Tips

VA Commercial Repair Solutions

If your commercial furnace is giving you trouble, it may be time for a repair. A proactive approach to repair is the best way to ensure that the system continues to work at optimum efficiency. To help you identify and fix small problems quickly, here are some helpful tips. Check the evaporator coils (the coil inside the furnace) and capacitors. Also, check the fuel delivery. These are the most important initial steps to determining the problem and repairing it before the problem escalates into a major one.

Commercial Furnace Repair Tips

Check evaporator coils

Commercial Furnace Repair Tips

If you suspect that your furnace may be suffering from overheating or has a leaking valve, you should check the evaporator coils. The fins on the evaporator are made of thin metal, and they can bend easily. To clean them properly, you should use hot soapy water, a plastic bristle brush and a shop vac. You may also use a commercial coil cleaning solution.

Before beginning, turn the air conditioner off at the thermostat or circuit breaker. Remove the panel and clean the evaporator coil with a plastic brush. Make sure that you direct the airflow in the opposite direction from the direction of the airflow. Be sure to wear eye protection while cleaning the coils. If you can't afford to pay a professional, use a shop vac to clean the evaporator coils yourself.

Another way to check the evaporator coils is by checking the static pressure drop across the coil. The static pressure drop is the same as the CFM of air flowing across the coil. If the pressure drop is lower than the set limit, it means the air supply to the evaporator coil is not sufficient. For example, a five-ton system should have about 2,000 CFM of air flowing across the coil, that is 400 CFM  & 12,000 BTUs per ton.

Check fan motor

Commercial Furnace Repair Tips

If your furnace is constantly running, the fan may be having problems. This may be a symptom of an electrical problem with the fan motor. If you're unable to determine the source of the problem, try determining how much voltage is dropped across the motor's contact points. You can also look for a loose wire or a corroded electrical connector. If the fan motor is not turning, it may be because it's overheating or there's a short in the motor's windings.


When performing a commercial furnace repair you'll need to check the fan motor. It is an industry-standard to inspect all components to determine whether it's operating correctly. This includes the blower motor. A properly functioning fan motor will allow the heating system to run more efficiently and save energy. If the fan motor is malfunctioning, the heater will stop working, resulting in higher energy bills. A technician can determine whether the blower motor needs to be replaced and replace it if necessary.


To test the fan motor, raise the thermostat to a higher temperature. Then, check the power switch to make sure it's set to the appropriate position. If it doesn't turn on, set the system switch to the "HEAT" or "AUTO" position. If you're experiencing an overheating problem, raise the thermostat to the highest setting. If it doesn't turn on, raise the thermostat and check the power switch.

Check capacitors

When doing commercial furnace repair, check the capacitors. These parts may be easy to overlook but are essential for heating and cooling your building. Capacitors hold a charge even when the unit is not powered on. You must discharge these capacitors according to the manufacturer's instructions. The voltage ratings for capacitors are usually listed on the side of the unit. If you find that the capacitors you have are not functioning at voltage and microfarad rating, they must be replaced.


You can test the blower motor for a bad capacitor to determine if you need to replace it. You may notice that the blower is running slowly or inconsistently. The blower motor may also be overheating and acting strangely. If you suspect a capacitor problem, you should contact a professional. You may not be aware that a bad capacitor is affecting your family's comfort. To ensure a safe and effective operation of your commercial furnace, inspect the blower motor's capacitors.


Another way to test the blower's capacitors is to turn on the furnace and listen closely for humming noises. You can hear these noises by turning up the blower or by opening the access panel. If you do hear humming noises, you should schedule a professional inspection. These components are easy to replace and are inexpensive. You can replace them yourself, but you should ensure you consult a professional before trying to perform the repair on your own.

Check fuel delivery

A company providing commercial furnace repair should be reliable. They should have trained, professional staff who are HAZMAT-certified. If you have a company vehicle, they should use trucks that have special fuel delivery systems. They should also have a trained driver who is able to fuel equipment safely and efficiently. This way, you can avoid the risk of spills and leaks. A service can check your tank to make sure it is working properly and inspect for damage. In case there is a leak in your furnace, they can replace the tank.

Check ductwork

Commercial Furnace Repair Tips

A leaking ductwork can be a serious problem. Not only does it pull in dust from the outside, but it also circulates it throughout the building. While dust is not harmful, it can negatively affect air quality, which can be problematic for people with respiratory problems and allergies. Therefore, a professional should check the ductwork before attempting any commercial furnace repair. Here are some of the common signs of leaking ductwork:


Older HVAC systems can be problematic. They lose up to 40% of their efficiency over time. Rusted ductwork may require replacing the whole ductwork system. The older the commercial property, the more likely the ductwork is to be damaged. It can be difficult to access and may cost more than you'd expect. If you're unsure whether your ductwork is damaged, you can always hire an HVAC specialist to check it for you.


Leaky ducts also cause uneven cooling in your home or business. The leaking air makes certain areas too hot, while others stay too cold. This can cause discomfort for residents and strain your HVAC unit. If left unchecked, it can also lead to a lower unit lifespan. For these reasons, you should check your ductwork if you need a commercial furnace repair. Consider contacting a professional HVAC specialist in your area.

Check the Electrical System

Commercial Furnace Repair Tips

Whether you're looking to upgrade an existing commercial HVAC system or install a new one, a proper evaluation of the electrical system is vital to the performance of your heating and cooling. Moreover, it will ensure that your electrical system can support the extra load that your new system puts on it. Checking the electrical system is a great way to optimize the value of your investment. Here are some tips to help you evaluate the system.


Before calling a commercial HVAC technician, make sure that the unit is powered on. A malfunctioning furnace can cause a series of problems, including frozen pipes or complaints from building occupants. Some problems can be easily resolved by the owner, but some require the assistance of a technician. Whenever you are looking for commercial HVAC repair, be sure to check the electrical system. Check to see if it's connected to the power supply and running.


If the power disconnect switch is turned off, check your electrical system. Some electrical equipment may be overloaded and lead to a power outage. Check the circuit breaker to ensure it's set in the "On" position. You may also need to open the valve for the gas supply. Once you're sure of this, you can call a commercial HVAC technician to inspect your equipment. They'll also check the fuel supply and test the electrical system to ensure that there's enough fuel in the tank.

October 15, 2026
 Somewhere in the bid documents for a Virginia state-funded project, a short line appears: SWaM participation. It looks like paperwork. It often decides which mechanical and HVAC subcontractors a prime contractor can invite to bid. SWaM stands for small, women-owned, and minority-owned. The Virginia Department of Small Business and Supplier Diversity certifies firms, as its SWaM certification page explains. Buyers use that certification to build diverse vendor lists and meet participation goals. Finding a certified contractor that also does real HVAC and mechanical work is harder than a directory search suggests. Some certified firms sell office equipment or manufacture parts. This guide covers five firms that publish their SWaM status on their own sites. Each one installs or services building systems. The short list: five SWaM-certified contractors compared VA Commercial Repair Solutions is a Fishersville-based Class A contractor serving commercial facilities across central Virginia and the Shenandoah Valley. It combines HVAC, refrigeration, kitchen equipment, boilers, and electrical work with 24/7 live-person answering. Comfort Systems of Virginia is a Chesapeake-based Class A contractor with HVAC construction, plumbing service, and sheet metal manufacturing. M&E Contractors is a Richmond mechanical, electrical, and plumbing subcontractor built for institutional and state-funded construction. Taylor Mechanical is a Chesapeake HVAC installer and service firm that publishes both its license and SWaM numbers. Environmental & Power Services is a Springfield firm focused on commercial HVAC service and indoor pool dehumidification.
October 15, 2026
 Forty-eight hours is a useful number to remember. A full, unopened freezer holds its temperature for about that long once power stops, per USDA food safety guidance . A half-full one manages about 24. A failed compressor is a different problem. The insulated box may be fine, but the system that cools it is not. Product begins warming as soon as cooling stops, and a repair part can take days to arrive. A mobile walk-in freezer bridges that gap. It is a refrigerated trailer parked beside your building. It holds product at temperature while the permanent unit is fixed or replaced. This guide covers what rentals cost in Virginia, how to size a unit, and what to ask before you sign. Prices and terms come from the published rental page and agreement of VA Commercial Repair Solutions, our company. Use them as one real price point, not a market average. When a mobile freezer rental makes sense A refrigeration failure is the classic trigger. Walk-in repairs often need parts that are not on the truck. A rental keeps inventory cold while the part is ordered, shipped, and installed. Planned work is the second reason. A remodel, a floor replacement, or a new walk-in freezer installation takes the old box offline for days. Renting turns that downtime into a scheduled project instead of a scramble. Peak demand is the third. Weddings, school functions, corporate events, and holiday rushes can outgrow a permanent freezer. Short-term cold storage often costs far less than a second unit you would use twice a year. Power loss is the fourth. Storms and electrical faults can strand product in a perfectly healthy freezer. A trailer needs its own power source, so settle that plan before the storm arrives. A rental is a bridge, not a fix. Early diagnosis is cheaper, and refrigeration repair prevents food loss before a trailer is ever needed. Still, equipment fails on its own schedule, so know your options in advance. Watch the food safety clock Time and temperature decide what you can keep. Virginia Department of Health guidance tells households to discard perishables held above 40°F for two hours or more. USDA says frozen food should stay at or below 0°F. Restaurants and caterers answer to the local health department. Call it early if product has warmed. Ask what documentation an inspector will expect, and start a temperature log the moment the problem appears. What mobile freezer rentals cost in Virginia Rental pricing is usually quoted by the week, with a lower rate for longer terms. The table below shows published rates for three trailer sizes. Confirm current rates when you call.
October 7, 2026
 The walk-in cooler is creeping above safe temperatures at 2 a.m. The compressor is silent, and your phone lists three contractors. Which one do you call first? Commercial buildings blur trade lines. A dead compressor can be a refrigerant problem, a controls problem, or a power problem. Calling the wrong trade costs hours and sometimes spoiled inventory. This guide explains what a commercial electrician, an electrical contractor, and a mechanical contractor each do in Virginia. It maps common failures to the right first call. It also shows when one multi-trade contractor saves you a handoff. The short answer: match the trade to the failure Call an electrical professional when the fault is in power delivery. Call a mechanical contractor when the fault is in equipment that moves air, water, gas, or refrigerant. Call a multi-trade contractor when you can't tell which. The table below maps common problems to a first call. Treat it as a starting point, not a rule. Overlap is normal in commercial buildings.
October 7, 2026
 A single dead fixture in a parking lot looks minor until a customer slips in the dark. Lighting failures hit safety, security, and your utility bill at the same time. The wrong contractor makes all three worse. Virginia adds a wrinkle. A firm that excels in Hampton Roads may never dispatch a truck to Harrisonburg. Coverage area matters as much as LED know-how. This guide compares seven contractors that handle commercial lighting installation and retrofit work in Virginia. We reviewed each company's own published material. Where a detail isn't public, we say so and tell you what to ask. What are the best commercial lighting contractors in Virginia? VA Commercial Repair Solutions leads the list for central Virginia and the Shenandoah Valley. It pairs a Class A electrical license with its own bucket truck and a live-answer phone line. C&W Electrical Contractors covers Richmond with 30-plus years in commercial electrical work and a dedicated parking lot lighting practice. Smartwire focuses on Richmond-area LED upgrades, from audit through rebate paperwork and recycling. Root Electric has served Northern Virginia from Woodbridge since 1986. Bay Lighting is a Maryland-based commercial lighting specialist that supplies, installs, and maintains fixtures across Northern Virginia. EHI has served Hampton Roads from Norfolk since 1977 and holds a GSA contract. Go Green Electric rounds out the list with commercial LED retrofits on the Virginia Peninsula.
October 1, 2026
 A boiler that has run for 25 years rarely announces its retirement. It fails on the coldest morning of the year, when every supplier is busy and every contractor is booked. The business that waited pays twice: once for lost heat, and again for a rushed installation. Choosing an installer in advance changes that outcome. A planned replacement lets you compare bids, size the new plant correctly, and schedule work outside the heating season. An emergency replacement offers none of those options. Boiler work also carries more regulation than most mechanical projects. Virginia oversees the installation, operation, and repair of certain boilers, and new gas-fired units require paperwork from the installer. A contractor who doesn't know that process can stall your project. This guide covers three Virginia companies that install commercial boilers. Each was reviewed on boiler types, service area, credentials, and the facilities it suits best. After the profiles, you'll find a plain-language walk-through of what a boiler installation involves in Virginia. Virginia's Top 3 Boiler Installers at a Glance VA Commercial Repair Solutions installs and replaces water and steam boilers across central Virginia and the Shenandoah Valley. Riddleberger Brothers brings an 80-plus-year mechanical history and large fabrication capacity to the Valley, Charlottesville, Lynchburg, and Winchester. CBW Mechanical covers the Richmond area and Northern Virginia with boiler repair, replacement, and installation. Together, they cover central Virginia, the Valley, and the Richmond-to-Northern Virginia corridor.
October 1, 2026
 A signed lease and a rented kitchen shell feel like the finish line. In Virginia, they are closer to the starting gun. The health department, building official, and fire marshal each get a say before the first plate goes out. Four systems tend to decide whether an opening date holds. They are the kitchen layout, the exhaust hood, fire suppression, and refrigeration. They depend on each other. A hood that misses the ceiling, or a walk-in the floor can't hold, sends owners back to the drawing board. This checklist walks through all four in the order decisions usually come due. It covers what Virginia reviewers look for, what to ask contractors, and what to verify before inspection day. Treat it as a working document, not a one-time read. Start With Plan Review Before You Order Anything Virginia food establishments go through plan review before opening. The Virginia Department of Health asks operators to submit a plan review application and fee to the local health department. At the time of writing, the listed fee is $40. The submission includes floor plans, equipment lists, specifications, proposed menus, and Food Protection Manager credentials. New construction also needs site plans. Reviewers use these documents to confirm the layout meets the Virginia Food Regulations . After plan approval, a foodservice permit application follows. The health department asks for it at least 30 days before opening. Build that lead time into your calendar from day one. Plan review exists to protect your budget as much as public health. The department says it helps operators avoid costly investments in work that won't meet requirements. Buying a hood or walk-in before approval risks exactly that. Building and fire officials run their own tracks. The local building department typically reviews mechanical, electrical, and plumbing permits. The fire marshal looks at the hood and suppression system. Ask each office which drawings it wants before you commit to equipment. A short call early saves a rejected submission later. The Opening Timeline at a Glance Opening day depends on eight phases. Some overlap, but skipping one almost always costs time later. The table below shows who signs off at each stage.
October 1, 2026
 A rooftop unit quits at 2 p.m. on the hottest Friday of July. The dining room fills with warm air. The walk-in compressor starts to strain. Within an hour, staff are sweating and customers are leaving. Heat is not only a comfort problem. The Occupational Safety and Health Administration lists air conditioning and improved ventilation among the controls employers use against heat illness. When cooling fails indoors, the clock starts on worker safety, not just sales. That is why "24/7" on a contractor's website deserves a closer look. Some companies staff a live line and dispatch trucks overnight. Others take a message and call back at breakfast. This guide covers four Virginia companies that handle commercial HVAC emergencies. Each was reviewed on response model, coverage area, equipment, and the facilities it fits best. None of them cover the whole state, so location decides more than reputation. Who Offers Real 24/7 Emergency HVAC Repair in Virginia? VA Commercial Repair Solutions answers every call with a live manager or owner across central Virginia and the Shenandoah Valley. Commercial Express HVAC covers Northern Virginia, Maryland, and DC with a 24/7/365 emergency line. Piedmont Service Group serves commercial and institutional clients from Richmond, Chesapeake, and Danville. Comfort Systems USA MidAtlantic works from South Boston, covering South Central Virginia.
By Chuck Weisman • September 26, 2026
PVC can shatter under compressed air. Here is what the OSHA record says and how VA Commercial Repair Solutions replaces it with RapidAir piping.
By Chuck Weisman • September 26, 2026
PVC can shatter under compressed air. Here is what the OSHA record says and how VA Commercial Repair Solutions replaces it with RapidAir piping.
September 23, 2026
 A commercial building is a network of mechanical, electrical and refrigeration systems that all have to work together. When one part fails, the symptoms are not always obvious. A walk-in cooler that will not hold temperature might have a refrigerant leak, a failing compressor, a bad controller or an electrical issue feeding the unit. A restaurant exhaust fan that stops pulling air might be a motor problem, a belt issue, a make-up air imbalance or a wiring fault. That is why many businesses search for commercial mechanical contractors near me when they need more than a basic service call. A true commercial mechanical contractor can look across connected systems, diagnose the cause and coordinate the repair without forcing the owner or facility manager to call three separate vendors. For restaurants, breweries, food processing plants, schools, retail buildings and industrial facilities, that multi-trade capability can protect inventory, reduce downtime and help keep operations compliant. What is a commercial mechanical contractor? A commercial mechanical contractor installs, repairs and maintains the mechanical systems that keep a commercial facility operating. In practice, that often includes HVAC, refrigeration, boilers, chillers, ventilation, kitchen exhaust, gas piping, compressed air, equipment controls and related electrical work. The exact scope depends on licensing, training and the contractor’s business model. Some companies focus mainly on HVAC. Others, like VA Commercial Repair Solutions, work across commercial HVAC, restaurant refrigeration, electrical, boilers, chillers, range hoods, fans, ice makers and related facility systems. The difference matters because commercial buildings rarely fail in neat categories. If a rooftop unit trips a breaker, the problem may not be only electrical. If a kitchen line feels hot and smoky, the issue may involve the hood, exhaust fan, make-up air and fire suppression layout. A mechanical contractor with broader commercial experience can trace those overlaps faster. Commercial HVAC systems Commercial HVAC is one of the core areas mechanical contractors handle. This can include heating, air conditioning, ventilation, ductwork, controls and rooftop equipment. Common commercial HVAC work includes: Rooftop unit repair and replacement Split system and packaged unit service Heat pump and furnace repair PTAC and mini-split service for hotels, offices or specialty spaces Ductwork installation, balancing and repair Thermostat and control troubleshooting Preventive maintenance programs Refrigerant leak diagnosis and conversion support For a business, HVAC work is not just about comfort. Poor cooling can drive customers away, affect employee productivity and create unsafe indoor conditions for kitchens or production spaces. Poor ventilation can create odors, humidity issues and code concerns. If your current concern is air conditioning performance, this guide to commercial HVAC repair explains what businesses should look for in a qualified repair provider. Commercial refrigeration and cold storage Commercial refrigeration is a separate skill set from standard comfort cooling. It involves tighter temperature requirements, food safety risk and equipment that often runs around the clock. Mechanical contractors with refrigeration capability can handle walk-in coolers, walk-in freezers, reach-in coolers, prep tables, ice machines, chillers and specialty cold storage. In restaurants and food facilities, even a small temperature drift can become expensive if inventory is lost or health-code compliance is affected. A refrigeration service call may involve checking evaporator coils, condenser airflow, refrigerant charge, door gaskets, defrost timers, drain lines, fan motors, compressor operation and electrical controls. For cold storage and food processing facilities, refrigeration may also be tied to 3-phase power, alarms, backup systems and production schedules. This is one reason a commercial mechanical contractor is often a better fit than a residential HVAC provider. The stakes, equipment types and diagnostic process are different. Restaurant equipment, hoods and exhaust systems Restaurants, institutional kitchens and food-service operations need specialized mechanical support. A contractor working in these environments may handle cooking equipment, exhaust hoods, exhaust fans, make-up air, stainless fabrication, fire suppression coordination and refrigeration. Kitchen exhaust systems deserve special attention. Type 1 hoods are used over grease-producing equipment, while Type 2 hoods handle heat or steam. These systems need proper airflow, fire-safety design and ongoing maintenance. The NFPA 96 standard is one of the major references for ventilation control and fire protection in commercial cooking operations. A hood or exhaust problem can quickly affect an entire kitchen. Smoke, heat, grease vapor and negative air pressure make it hard to operate safely. Sometimes the issue is not the hood itself, but the fan, belts, bearings, make-up air fan, electrical feed or rooftop access. A mechanical contractor can inspect the complete system instead of treating each component in isolation. Boilers, chillers and hydronic systems Many commercial buildings use boilers, chillers or hydronic systems for heating, cooling or process loads. These systems are common in schools, industrial plants, larger commercial buildings, breweries and facilities with high heating or cooling demand. Commercial mechanical contractors may handle: Steam boiler and hot water boiler service Boiler pump and control troubleshooting Chiller repair and replacement Hydronic piping repairs Heat exchanger inspection Combustion and safety checks Preventive maintenance before peak heating or cooling season Boilers and chillers require disciplined diagnostics. A short cycling boiler, unstable chiller pressure or repeated lockout can point to controls, water flow, combustion, heat transfer or electrical issues. Guesswork is expensive, especially when the system supports production or a large occupied building. Commercial electrical work tied to mechanical systems Mechanical equipment depends on safe, reliable electrical infrastructure. Motors, compressors, controls, contactors, transformers, panels and disconnects all affect whether a system runs correctly. This is where the line between mechanical and electrical work becomes practical rather than theoretical. A walk-in freezer compressor may look like a refrigeration problem, but the root cause could be voltage imbalance. An exhaust fan may fail because of a worn motor, but also because of a starter, overload or wiring issue. A processing line may shut down because a breaker trips under load. A contractor licensed for both mechanical and electrical work can reduce the handoff problem. Instead of having one company say “call an electrician” and the electrician say “call the HVAC company,” the same team can evaluate the complete equipment circuit. For businesses comparing electrical support options, this overview of commercial electric repair service covers preventive maintenance, troubleshooting and licensing considerations.