Applying Scientific and
Electric Systems and
Professional Engineer Inspectors
Applying Scientific and Engineering
to Home Inspections
and Building Inspections
Pre-Purchase Home, Building, Condo, and
Co-op Inspections in Manhattan, Queens,
Brooklyn, Bronx, Staten Island, Nassau,
Suffolk, Rockland, Putnam, and Westchester
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Call 800.605.1500 and speak with a senior staff member.
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The electrical system is checked as part of a Professional Engineer's home inspection. A modern home or building requires electricity to run many of vital systems such as lighting, heating, hot water, appliances, and cooling system. Because so appliances require electric power, some existing homes and buildings do not have enough circuits to support modern electrical usage. Buildings with insufficient electric service (or an undersized panel) need not be very old. A building constructed only 10 years ago may not have the electric wiring to support the today's needs. However, modern energy-efficient equipment and appliances allow some building to get by with a smaller electric service.
Electric service insufficiency is often aggravated by homeowners who add appliances without providing additional circuits. If someone adds appliances without upgrading the electric service, hazardous conditions may exist.
The electrical system consists of the electric lead-in wire, the electric meter and meter pan, the circuit breaker panel (or fuse box in an old house or building), the wiring, and the outlets, switches, lights, and other electrical devices. The whole electric system in the house or building needs to be assessed. If you are purchasing a condo or co-op, the electric service to the unit needs to be assessed to determine if it is sufficient for modern electrical needs.
equipment and appliances
allow some buildings to have
a smaller electric service
In addition evaluating the electric system and advising you of the hazards, the Professional Engineer provides an expense analysis in the engineering report that helps you plan for the future.
Only a Licensed Electrician should open a circuit breaker panel. A Licensed Electrician can correct hazards created by opening electrical panels. A responsible Home Inspector will not open electrical panels.
Communities require electricians to be licensed, and prohibit anyone other than a Licensed Electrician from performing electrical work. (Exceptions are made for homeowners wiring their own home.)
Our Professional Engineers determine the condition of the wiring by visual examination. The question is why do some Home Inspectors insist on opening the circuit breaker panel when it creates a hazard.
There is a misconception that if a house has circuit breakers and has 100-Amp, 240-Volt service, it is sufficient. There is also a misconception that if a home, building, condo unit, or co-op unit has circuit breakers and no fuses, the electric service and electric wiring are sufficient. If a house has large electrical loads such as air-conditioning, a swimming pool, or an appliance such as an electric range, then 150-amp or 200-amp service may be required. The electric panel may also be undersized for the number of circuit breakers installed.
You can depend upon the Professional Engineer Inspector to assess the sufficiency of the electric service and electric wiring in the home, building, condo, or co-op that you are considering purchasing.
Below are terms used in describing home wiring and building wiring:
Alternating current (AC): An electric current that reverses direction in a circuit at regular intervals. Alternating current, also called AC, is used in almost all homes, buildings, condo units, and co-op units today.
Aluminum wiring: Homes, buildings, condo units, and co-op units built between 1965 and 1973 (outside of the City of New York) may have been wired with aluminum wiring, a potential fire hazard.
Amps: The unit of measure of the flow rate of current.
Circuit breaker: A device that shuts of a circuit by mechanical action when too much current is flowing. When a high current passes through a circuit breaker a trigger rapidly separates a pair of internal contacts. Unlike a fuse which must be replaced after it has blows, a circuit breaker can be reset after it has been tripped. Circuit breakers have replaced fuses in modern buildings.
Circuit breaker panel: An electric panel containing circuit breakers.
Conductor: A substance, typically metal, that conducts an electric current. Copper and aluminum are the most common conductors in building wiring.
Current: The rate of flow of electrons, measured in amps. The more electrons flowing, the more energy that is available. However, the flowing electrons heat up the wire. Too much heating of the wire creates a fire hazard.
Direct current (DC): An electric current that flows in one direction in a circuit. Direct current, also called DC, is rarely used homes and buildings today.
Fuse: A safety device used to protect against excessive current. A fuse consists of a metal alloy strip with a low melting point. Because of its electrical resistance, the alloy strip is heated by electric current. If the current exceeds a safe value, the strip melts and stops the current. Fuses are rarely seen in modern wiring.
Insulation: A material that does not conduct electricity. A conductor wrapped in insulation forms the wiring found in homes and buildings. Most modern insulators are plastic or vinyl.
Power: As a first order approximation, power is the product of the voltage times the current. Power is a measure of how much work can be done in a certain period of time. It is power (not voltage or current) that defines how much work is actually done.
Sub-panel: An additional electrical panel installed after the main circuit breaker panel.
Three-phase power: Electrical power delivered in three separate phases. This is the way electrical power is distributed throughout the community and supplied to buildings.
Voltage: The electrical energy available, measured in volts.
Volts: The unit of measure of electrical potential.
Watt: A unit of measure of electric power.
Wire: A conductor surrounded by an insulator. Wires carry the electric current throughout a building.
Applying Scientific and
to Home and
Contact Heimer Engineering℠
Heimer Engineering℠ is happy to help you. Senior Staff members are available Monday through Friday from 9 AM to 5 PM. After 5 PM, please leave a message. Messages are checked during the day on Sunday, and Sunday evening through Thursday evening. Inspections are performed seven days a week.
Heimer Engineering's℠ inspection fees are competitive with non-Engineer Home Inspector's fees, especially when you consider that many non-Engineers charge extra for termite inspections, swimming pools, etc.
Inspection orders are taken by senior staff members. A real estate purchase is complex and you should be able to speak with someone who can answer your inspection questions.
To set up an appointment for a pre-purchase inspection or to find out about Engineering services or expert court testimony email Info@heimer.com, text 888.769.6910, or call 646.757.4500. If no staff member is in the office, leave a message.
Ask About a Web Discount
Heimer Engineering℠ serve the Greater New York area, including New York City (Manhattan, Queens, Brooklyn, Bronx, Staten Island), Long Island (Nassau County, Suffolk County, and Upstate New York (Rockland County, Putnam County, and Westchester County).
In the event of a life-threatening emergency call 911. Emergency situations need to be handled by first-responders who can evacuate buildings, shut utilities off, and take other steps necessary to preserve life.
Standards of Practice
and Code of Ethics
Heimer Engineering's℠ Professional Engineer Home Inspectors substantially adhere to the InterNACHI® Code of Ethics, to Subpart 197-4 of the State of New York Code of Ethics and Regulations for Home Inspectors, the ASHI® Standards of Practice, and the National Society of Professional Engineers (NSPE®) Code of Ethics. In the event of a conflict, the Professional Engineer Home Inspectors use Engineering judgment to decide what standard or Engineering principle takes precedence. All State of New York Licensed Professional Engineers are bound by New York State Education Law Article 145.
Ask about a web discount. Discounts are also available for referrals (attorney, real estate broker, mortgage broker, co-worker, friend) first time buyers, senior citizens, military (army, navy, air force, marines, coast guard), first responders (police, ambulance, fire), municipal employees, security personnel, and union members.
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Heimer Engineering PC℠ performs home inspections, building inspections, condo inspections, and co-op inspections in the State of New York. Expert witness services are provided regarding playground injuries, parking lot, walkway, and stairway slip, trip, and fall.
The Heimer Engineering PC℠ website was designed and is maintained by Harold Krongelb PE. The contents of this website were written by Harold Krongelb PE. This website is not intended to offer Engineering opinions or advice. Sitemaps and indexing information can be found at Page Sitemap, Image Sitemap, Mobile Sitemap, and Video Sitemap.
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2171 Jericho Turnpike, Suite 230
Commack, New York, USA 11725-2947
New York Metro: 646.757.4500
Bronx, New York: 718.547.2000
Brooklyn, New York: 718.237.7777
Manhattan, New York: 212.563.4777
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Fax: 631.858.5599, 646.795.4571