5 Star Auto Construction

Appraisers and assessors of real estate estimate the value of real property--land and the buildings on that land-- before it is sold, mortgaged, taxed, insured, or developed.

Appraisers and assessors of real estate typically do the following:

• Verify legal descriptions of real estate properties in public records
• Inspect new and existing properties, noting unique characteristics
• Photograph the interior and exterior of properties
• Use “comparables,” or similar nearby properties, to help determine value
• Prepare written reports on the property value
• Prepare and maintain current data on each real estate property                             

Appraisers and assessors work in localities that they are familiar with so that they know any environmental or other concerns that may affect the property's value.

Appraisers typically value one property at a time, and they often specialize in a certain type of real estate. For example,

• Commercial appraisers specialize in property used commercially, such as office buildings, stores, and hotels.
• Residential appraisers focus on appraising property in which people live, such as duplexes and condominiums, and appraise only those that house one to four families.

When estimating a property's value, appraisers note unique characteristics of the property and surrounding area, such as a noisy highway nearby. They also consider the condition of a building's foundation and roof or any renovations that may have been done. In addition to photographing the outside of the building to document its condition, appraisers might also photograph a certain room or feature. After visiting the property, the appraiser estimates the value of the property by considering things such as comparable home sales, lease records, location, view, previous appraisals, and income potential. During the entire process, appraisers meticulously record their research, observations, and methods used in calculating the property's value.

Assessors mostly work for local governments and value properties for property tax assessments. Unlike appraisers, who generally focus on one property at a time, assessors often value an entire neighborhood of homes at once by using mass appraisal techniques and computer-assisted mass appraisal systems.

Assessors must be up-to-date on tax assessment procedures. Taxpayers sometimes challenge the assessment because they feel they are being charged too much for property tax. Assessors must be able to defend the accuracy of their property assessments, either to the owner directly or at a public hearing.

Assessors also keep a database of every property in their jurisdiction, identifying the property owner, assessment history, and size of the property, as well as property maps detailing the property distribution of the jurisdiction.

Automotive body and glass repairers restore, refinish, and replace vehicle bodies and frames, windshields, and window glass.

Automotive body and glass repairers typically do the following:

• Review damage reports, prepare cost estimates, and plan work
• Remove damaged body parts, including bumpers, fenders, hoods, grilles, and trim
• Realign car frames and chassis to repair structural damage
• Hammer out or patch dents, dimples, and other minor body damage
• Fit, attach, and weld replacement parts into place
• Install and weatherproof windows and windshields
• Grind, sand, buff, and prime refurbished and repaired surfaces
• Apply new finish to restored body parts

Automotive body and glass repairers can repair most damage from everyday vehicle collisions and make vehicles look and drive like new. Damage may be minor, such as replacing a cracked windshield, or major, such as replacing an entire door panel.

Repair technicians use many tools for their work. To remove damaged parts, such as bumpers and door panels, they use pneumatic tools, metal-cutting guns, and plasma cutters. For major structural repairs, such as aligning the body, they often use heavy-duty hydraulic jacks and hammers. For some work, they use common handtools, such as metal files, pliers, wrenches, hammers, and screwdrivers.

In some cases, repair technicians do an entire job by themselves. In other cases, especially in large shops, they use an assembly line approach in which they work as a team with each repair technician specializing.

Although repair technicians sometimes prime and paint repaired parts, automotive painters generally perform these tasks. For more information, see the profile on painting and coating workers.

The following are occupational specialties: 

Automotive body and related repairers, or collision repair technicians, straighten metal panels, remove dents, and replace parts that cannot be fixed. Although they repair all types of vehicles, most work primarily on cars, sport utility vehicles, and small trucks. 

Automotive glass installers and repairers remove and replace broken, cracked, or pitted windshields and window glass. They also weatherproof newly installed windows and windshields with chemical treatments.

Automotive service technicians and mechanics, often called service technicians or service techs, inspect, maintain, and repair cars and light trucks.  

Automotive service technicians and mechanics typically do the following:

• Test parts and systems to ensure that they are working properly
• Identify mechanical problems, often by using computerized diagnostic equipment
• Follow checklists to ensure that all critical parts are examined
• Test and lubricate the vehicle's engine and other major components
• Perform basic care and maintenance, including oil changes, tuneups, and tire rotations
• Repair or replace worn parts, such as brake pads and wheel bearings
• Disassemble and reassemble parts
• Use testing equipment to ensure that repairs and maintenance are effective
• Explain to clients their automotive problems and the repairs done on their vehicles

Service technicians work on traditional mechanical components, such as engines, transmissions, belts, and hoses. However, they must also be familiar with a growing number of electronic systems. Braking, transmission, and steering systems, for example, are controlled primarily by computers and electronic components.

Other integrated electronic systems, such as accident-avoidance sensors, are becoming common as well. In addition, a growing number of technicians are required to work on vehicles that run on alternative fuels, such as ethanol and electricity.

Service technicians use many different tools, including computerized diagnostic tools and power tools such as pneumatic wrenches, lathes, welding torches, and jacks and hoists. These tools usually are owned by their employers.

Service technicians also use many common handtools, such as pliers, wrenches, and screwdrivers, which generally are their own. In fact, experienced workers often have thousands of dollars invested in their personal tool collection.

Service technicians sometimes specialize in a particular type of repair that may be subject to specific regulations or procedures. For instance, those focused on air-conditioning system repairs must follow federal and state regulations governing the handling, recycling, and disposal of refrigerants.

In some shops, technicians may specialize. The following are types of service technicians:

Automotive air-conditioning repairers install and repair air conditioners and service parts, such as compressors, condensers, and controls. They are trained in government regulations related to their work.

Brake repairers adjust brakes, replace brake linings and pads, and make other repairs on brake systems. Some technicians specialize in both brake and front-end work. 

Front-end mechanics align and balance wheels and repair steering mechanisms and suspension systems. They frequently use special alignment equipment and wheel-balancing machines.

Transmission technicians and rebuilders work on gear trains, couplings, hydraulic pumps, and other parts of transmissions. Extensive knowledge of computer controls, the ability to diagnose electrical and hydraulic problems, and other specialized skills are needed to work on these complex components.

Tune-up technicians adjust ignition timing and valves and adjust or replace spark plugs and other parts to ensure efficient engine performance. They often use electronic testing equipment to isolate and adjust malfunctions in fuel, ignition, and emissions control systems.

For information about technicians who work on large trucks and buses, see the profile on diesel service technicians and mechanics.

For information about technicians who work on farm equipment, construction vehicles, and rail cars, see the profile on heavy vehicle and mobile equipment service technicians.

For information about technicians who repair and service motorcycles, motorboats, and small all-terrain vehicles, see the profile on small engine mechanics.

Construction equipment operators drive, maneuver, or control the heavy machinery used to construct roads, bridges, buildings, and other structures.

Construction equipment operators typically do the following:

• Check to make sure that equipment functions properly
• Clean, maintain, and make basic repairs to equipment
• Report malfunctions to supervisors
• Move levers, push pedals, or turn valves to activate power equipment
• Drive and maneuver equipment
• Coordinate machine actions with crew members in response to hand or audio signals
• Ensure that safety standards are met

Construction equipment operators use machinery to move construction materials, earth, and other heavy materials at construction sites and mines. They operate equipment that clears and grades land to prepare it for construction of roads, bridges, and buildings, as well as airport runways, power generation facilities, dams, levees, and other structures.

The following are types of construction equipment operators:

Operating engineers and other construction equipment operators work with one or several types of power construction equipment. They may operate excavation and loading machines equipped with scoops, shovels, or buckets that dig sand, gravel, earth, or similar materials. In addition to operating the familiar bulldozer, they operate trench excavators, road graders, and similar equipment. Sometimes, they may drive and control industrial trucks or tractors equipped with forklifts or booms for lifting materials. They also may operate and maintain air compressors, pumps, and other power equipment at construction sites.

Paving and surfacing equipment operators control the machines that spread and level asphalt or spread and smooth concrete for roadways or other structures. Paving and surfacing equipment operators may specialize further:

• Asphalt spreader operators turn valves to regulate the temperature of asphalt and the flow of asphalt onto the roadbed. They must ensure that the machine distributes the paving material evenly, and they also must ensure that there is a constant flow of asphalt into the hopper.
• Concrete paving machine operators control levers and turn handwheels to move attachments that spread, vibrate, and level wet concrete. They must watch the surface of the concrete carefully to identify low spots into which workers must add concrete.
• Tamping equipment operators use machines that compact earth and other fill materials for roadbeds or other construction sites. They also may operate machines with interchangeable hammers to cut or break up old pavement and drive guardrail posts into the ground.

Piledriver operators use large machines mounted on skids, barges, or cranes to hammer piles into the ground. Piles are long, heavy beams of wood or steel driven into the ground to support retaining walls, bridges, piers, or building foundations. Some piledriver operators work on offshore oil rigs.

Some workers operate cranes to move construction materials. For more information on these workers, see the profile on material moving machine operators.

Environmental engineers use the principles of engineering, soil science, biology, and chemistry to develop solutions to environmental problems. They are involved in efforts to improve recycling, waste disposal, public health, and control of water and air pollution. They also address global issues, such as safe drinking water, climate change, and sustainability.

Environmental engineers typically do the following:

• Prepare, review, and update environmental investigation reports
• Design projects leading to environmental protection, such as water reclamation facilities, air pollution control systems, and operations that convert waste to energy
• Obtain, update, and maintain plans, permits, and standard operating procedures
• Provide technical support for environmental remediation projects and legal actions
• Analyze scientific data and do quality-control checks
• Monitor progress of environmental improvement programs
• Inspect industrial and municipal facilities and programs to ensure compliance with environmental regulations
• Advise corporations and government agencies about procedures for cleaning up contaminated sites

Environmental engineers conduct hazardous-waste management studies in which they evaluate the significance of the hazard and advise on treating and containing it. They also design municipal water supply and industrial wastewater treatment systems and research the environmental impact of proposed construction projects. Environmental engineers in government develop regulations to prevent mishaps.

Some environmental engineers study ways to minimize the effects of acid rain, global warming, automobile emissions, and ozone depletion. They also collaborate with environmental scientists, planners, hazardous waste technicians, engineers, and other specialists, such as experts in law and business, to address environmental problems and sustainability. For more information, see the job profiles on environmental scientists and specialists, hazardous materials removal workers, lawyers, and urban and regional planners.