Register |  | Saturday, May 19, 2012

Plumbing Heating Air Conditining Electrical Water Treatment Water Treatment Photo Gallery

Home

Plumbing Heating Cooling Electrical Water Treatment Free Water Test Photo Gallery
  Air Conditioning Service and Repair  Contact Us Testimonials FAQs Refund Policy Hot Water Heaters   
   Air Conditioning  Contact Us Testimonials FAQs Refund Policy Hot Water Heater    

 Serving all of Southern Maryland
Phone: (301) 481-9281 | 24 Hour Service

Google Mechanical provides plumbing, electrical, air conditioning, heating, services to the Waldorf, La Plata, Charles County MD area, California, Lexington Park, St. Mary’s County MD area, Prince Frederick, Huntingtown, Calvert County MD Area.

Google Mechanical is a full service plumbing, electrical, heating, and air conditioning company.  We work in the Maryland Counties of Calvert, Charles, and St. Mary’s Counties daily.

Click or Call now for a solution to your problem – first time accurate diagnosis guaranteed.

For a free estimate or service appointment, click here.

Plumbing: Southern Maryland Systems Install and Repair

SO MD SOUTHERN MARYLAND homeowners uses an average of 100 gallons of water per day at home. By installing water-efficient fixtures and appliances, usage can be dropped by about 30% — which shaves an average of  $450.00 per  year off a $1500.00 water and sewer bill. Repair all water-using appliances, even if the leak is minor. A leaking faucet, an endlessly running toilet, even the wrong showerhead, can leak hundreds of gallons of water – and handfuls of dollars down the drain. CHARLES COUNTY,ST.MARY'S,and Calvert County MD homeowners can save on expensive utility bills by keeping plumbing systems well serviced and updated.

Common plumbing service calls performed daily in the cities of St. Mary’s, Charles, & Calvert Counties of Maryland:

  • SO MD Low Water Pressure
  • SO MD  Electric Water Heater Elements
  • SO MD  Gas Water Heater - Repair or Replacement
  • SO MD  Power Vented Water Heater Repair
  • SO MD  Gas Water Heater - Water Leak
  • SO MD  Tankless Water Heater Repair
  • SO MD  Well Tank - Repair or Replacement
  • SO MD  Tub Shower Control - Repair or Replacement
  • SO MD  Garbage Disposal - Repair or Replacement
  • SO MD  Gas Pipe Leak
  • SO MD  High Efficiency Gas Water Heaters
  • SO MD  Hybrid Gas Water Heater Service and Repair
  • SO MD  Sump Pumps & Battery Backups
  • SO MD  Plumbing Piping Service
  • SO MD  Gas Piping Service
  • SO MD  hot water circulation pumps
  • SO MD  High water bills - test determine source of problem
  • SO MD  Faucet service and repair
  • SO MD  Leak detection and leak repair
  • SO MD  Toilet, tub and shower head repair, replacement and installation
  • SO MD  Repipe Kitchen Sink

Southern Maryland Plumbing Services and Repair, Low Water Pressure, Gas Water Heater Repair, Well Tank Repair, Tub Shower Control, Garbage Disposal Repair, Waldorf, La Plata

Photo Gallery
Testimonials

Heating: Southern Maryland Systems Install and Repair

Heating and cooling your Southern Maryland Home uses typically about half of your utility bill. No matter what kind of heating, ventilation and air-conditioning system you have in your house, you can save money, increase comfort and reduce your dependence on gas and electricity by properly maintaining and upgrading your equipment.

Remember, to cut your energy bills in half, you have to combine an energy efficient furnace or air-conditioner with proper equipment maintenance and upgrades with appropriate insulation, weatherization, thermostat setting and correct lighting. 

Common heating service calls performed daily in the cities of St. Mary’s, Charles, & Calvert Counties of Maryland:

  • SO MD  Boiler Repair or Replacement
  • SO MD  Thermostat Repair or Replacement
  • SO MD  Heat Pump Maintenance or Replacement
  • SO MD  Gas Furnace Maintenance or Replacement
  • SO MD  Oil Furnace Repair or Replacement
  • SO MD  Baseboard Heat – Bleed
  • SO MD  Propane Furnace Repair or Replacement
  • SO MD  Hot Water Heat Repair
  • SO MD  Heat Pumps Installations
  • SO MD  Programmable Thermostats
  • SO MD  Humidifiers
  • SO MD  Furnaces
  • SO MD  Gas Furnaces
  • SO MD  Gas Furnace Service and Repair
  • SO MD  Propane Furnaces
  • SO MD  Propane Furnace Service and Repair
  • SO MD  Maintenance Check
  • SO MD  Heat Pumps
  • SO MD  Heat Pump Service and Repair
  • SO MD  HVAC Services
  • SO MD  Heating System Installation
  • SO MD  Heating System Repair
  • SO MD  Gas Fireplaces Service

Southern Maryland Gas Services and Repair, Fireplaces, Waldorf, La Plata

Photo Gallery
Testimonials

Give us a call or fill out an online service request so we can make you feel more comfortable today!

The bottom line is we're not satisfied until you're satisfied!

Air Conditioning: Southern Maryland Systems Install and Repair

Central air conditioning systems are built so that a central unit cools and dehumidifies air before circulating it throughout a home. Central air is often installed with a heating system, since both systems use the same electrical grid and ductwork to circulate cooled or heated air. This type of air conditioning is for the hot,humid so md days.  Newer model central air conditioning systems give you high levels of comfort and energy efficiency Good air conditioner maintenance is a must if you want to keep your system working efficiently during the hot southern maryland summer months.Air conditioner maintenance is an important job, and one that should be done every year before the air conditioning season starts so that your unit functions efficiently throughout the hot so md summer months.

Common cooling service calls performed daily in the cities of St. Mary’s, Charles, & Calvert Counties of Maryland:

  • SO MD  Thermostat - Repair or Replacement
  • SO MD  Air Conditioning System - Repair or Replacement
  • SO MD  Split System - Repair or Replacement
  • SO MD  Air Conditioning Capacitor - Repair or Replacement
  • SO MD  Condensate Pump - Repair or Replacement
  • SO MD  A-coil Cleaning - Service or Maintenance
  • SO MD  Ductless Systems - Service or Maintenance
  • SO MD  Freon Charging R-22-R-410 A
  • SO MD  Air Conditioning
  • SO MD  Air Conditioning System Service and Repair
  • SO MD  Cooling Zoning
  • SO MD  Cooling System Service Agreements
  • SO MD  Cooling System Service and Repair
  • SO MD  Air Conditioning Forced air systems
  • SO MD  HVAC Replacements
  • SO MD  Ductless Units
  • SO MD  Duct Free Split Systems
  • SO MD  Maintenance Check
  • SO MD  AC System Repair
  • SO MD  AC System Replacement
  • SO MD  AC System Installation
  • SO MD  HVAC Services

Southern Maryland HVAC Services and Repair, Air Conditioning, Condensate Pump, Ductless Systems, Freon Charging, Waldorf, La Plata, Southern Maryland

Photo Gallery
Testimonials

Electrical: Southern Maryland Systems Install and Repair

So Md southern maryland homeowners  An inefficient water heater can be an electricity guzzler a newer energy efficient model will save on energy usage. Switches, outlets and fixtures are the gateways through which your electricity flows. If a fuse opens or circuit breaker is tripped, warm wall outlets, smoldering, and burning happening behind your outlets are signs of damaged or improperly installed wiring in your home.  Avoid using the outlet or switch and have these emergency problems serviced.and an inspection completed. By ensuring that your home undergoes a thorough electrical inspection  you make certain your home's electrical system operates at the highest level of safety possible.

Common electrical service calls performed daily in the cities of St. Mary’s, Charles, & Calvert Counties of Maryland:

  • SO MD  Switches - Repair or Install
  • SO MD  Plugs - Repair or Install
  • SO MD  Breakers - Repair or Install
  • SO MD  Bath Exhaust Fan - Repair or Install
  • SO MD  GFCI - Repair or Install
  • SO MD  Electronic Clothes Dryer
  • SO MD  Light Fixtures Repair or Install
  • SO MD  Outside Lighting Repair or Install
  • SO MD  3 Way Circuits
  • SO MD  Kitchen Exhaust Fan
  • SO MD  Lighting upgrades and repairs
  • SO MD  Inspections and testing
  • SO MD  Appliance circuits
  • SO MD  New lighting installation and repairs
  • SO MD  110V Circuits
  • SO MD  220V Circuits
  • SO MD  Troubleshooting and Rewiring
  • SO MD  Breakers & Fuses
  • SO MD  central heating and air hookups
  • SO MD  Breakers Tripping

Southern Maryland Electrical Services and Repair, Switches, Plugs, Breakers, Bath Exhaust Fan, GFCI, Electronic Clothes Dryer, Light Fixtures, Waldorf, La Plata

Photo Gallery
Testimonials

Energy Conservation, Home Comfort, Money Savings and keeping our planet healthy for the next generation, these are not just good thoughts - this is today's reality.

We encourage all Southern Maryland Homeowners to perform preventative maintenance on their Plumbing Heating, Cooling, and Electrical Systems. 

Below you’ll find our Preventative Maintenance Checklists which are our proven method to keep your system saving you money and your home in constant comfort.

To Keep Hot Water flowing from the faucet your SO. MD hot water heater should operate safely and efficiently. Unfortunately, that is not always the case. An electric, gas, or oil water heater, like your furnace, should be checked every year to be sure it is operating safely.

Sediment, corrosion and rust are constantly attacking your water heater (whether tank or tank-less) and create an unsafe situation within your home or place of work. Maintenance and Service on Your Southern Maryland Hot Water Heater will prevent future problems and save on energy bills.

Our Southern MD Water Heater safety check includes:

  • Check the tank, pipe connections, the valves and underneath the unit for leaks
  • Flush water heater tank
  • Inspect the pressure-relief valve for corrosion. If rusty, this should be replaced right away
  • Inspect shut-off valve to water heater that it opens and closes freely
  • On a gas or oil-fired unit, check and clean combustion chamber
  • Check and adjust flame height of pilot light
  • Check flue vent for rust, corrosion, and obstructions
  • Inspect the thermocouple on gas-or oil-fired water heaters or resistance on electric heaters
  • Inspect the pilot assembly on power vent models
  • Test blower motor and controls on power vented models
  • Test incoming house gas pressure and 120 volt and 240 volt electrical supply
  • Set water temperature between 120 and 130 degrees. Higher temperatures could cause accidents that scald or burn people


 


Google Mechanical specializes in hot water heater repair, replacement,  maintenance, and installation of Southern Maryland residential home and commercial business water heating systems.

Regular preventative maintenance of your Southern Maryland cooling and heating system is the best way to ensure trouble-free operation and peak performance. Pre-season maintenance is also important. It can help to avoid a system failure in severe hot or cold weather when you need it most.

Google Mechanical specializes in heating and cooling repair or replacement, maintenance or installation of Southern Maryland residential home and commercial business heating and cooling equipment.


 


When to schedule maintenance for your Southern MD Heating and Cooling Systems.

If your system heats and cools your home:

  • Perform maintenance in the spring and fall.

Cooling-only:

  • Perform maintenance at least once a year, before the cooling season.

Heating-only:

  • Perform maintenance at least once a year, before the heating season.

Outdoor units - Heat Pumps & Air Conditioners:

  • Inspect unit for proper refrigerant level and adjust if necessary
  • Clean dirt, leaves and debris from inside cabinet
  • Inspect base pan for restricted drain openings—remove obstructions as necessary
  • Inspect coil and cabinet—clean as needed
  • Inspect fan motor and fan blades for wear and damage—on older models lubricate as needed
  • Inspect control box, associated controls/accessories, wiring and connections. Controls may include contactors, relays, circuit boards, capacitors, sump heat and other accessories.
  • Inspect compressor and associated tubing for damage

Indoor units - Gas Furnace, Air Handler, or Heat Pumps:

  • Inspect and clean blower assembly (includes blower housing and blower wheel and motor)
  • On older models, lubricate motor and inspect and inspect fan belt if needed
  • Check combustion blower housing for lint and debris and clean as necessary
  • Inspect evaporator coil, drain pan and condensate drain lines
  • Clean as needed
  • Inspect for gas leaks in gas furnaces
  • Inspect burner assembly—clean and adjust as needed
  • Inspect ignition system and safety controls—clean and adjust as needed
  • Inspect heat exchanger or heating elements
  • Inspect flue system—check for proper attachment to the furnace, any dislocated sections, and for signs of corrosion.
  • Inspect control box, associated controls, wiring and connections
  • Clean or replace air filters
  • Inspect conditioned airflow system (ductwork)—check for leaks



Digital Thermostats offer reliable accurate temperature control program your SO MD Homes Heating and Cooling Comfort around your lifestyle with a Digital Thermostat for immediate energy savings.

With our programmable Honeywell Digital Thermostats, you start by simply programming your weekday heating or cooling requirements—when you wake, when you leave the house, the time you return home, the time you go to sleep, and the temperature you want at each of those times. Of course your schedule will differ on weekends. Most of our programmable digital thermostats take this into consideration, and will let you program accordingly. However, even after you've set your thermostat, you still have flexibility.  You can temporarily change a program if your schedule suddenly changes, and you can update the program as needed. Our electronic digital thermostats can also be operated manually without canceling the regular program. Ease of use, flexibility, energy savings, and attractive design digital programmable thermostats keep you in touch with your heating and air conditioning system and you’re Southern MD family's comfort.

Keeping Your SO MD home electrical system keeps all modern equipment working safely:

  • Check for outlets that have loose-fitting plugs, which can overheat and lead to fire
  • Check Wall switches for proper operation and loose wiring
  • Look for cracks or damage in wiring, plugs and connectors
  • Test GFCIs according to the manufacturer's GFCIs can help prevent electrocution. When a GFCI senses current leakage in an electrical circuit, it assumes a ground fault has occurred. It then interrupts power fast enough to help prevent serious injury from electrical shock. GFCIs can be installed at the outlet, or as a replacement for the circuit breaker for an entire circuit at the fuse box
  • Inspect Ground Bonds
  • Inspect Main Breaker Panel Circuit breakers
  • Make sure SO MD homeowner know where the main breaker is located and how to shut of power to the entire house

Google Mechanical specializes in repair of switches, outlets, breakers, and fuses.

 

Southern Maryland Heating and Air Conditioning, serving St. Mary's, Charles, and Calvert County Southern Maryland Heating and Air Conditioning, serving St. Mary's, Charles, and Calvert County Southern Maryland Plumbing serving St. Mary's, Charles, and Calvert County
Installation Service Sales and Maintenance Repairs on Residential and Commercial Heating, Cooling, Electric, and Plumbing Equipment in the cities of Charles, St. Mary's, and Calvert County MD listed :

Waldorf, MD 20601 - Waldorf, MD 20602 - Waldorf, MD 20603 - Accokeek, MD 20607 - Bel Alton, MD 20611 - Benedict, MD 20612 - Brandywine, MD 20613 - Bryans Road, MD 20616 - Bryantown, MD 20617 - Charlotte Hall, MD 20622 - Cobb Island, MD 20625 - Faulkner, MD 20632 - Hughesville, MD 20637 - Indian Head, MD 20640 - Issue, MD 20645 - La Plata, MD 20646 - Marbury, MD 20658 - Nanjemoy, MD 20662 - Newburg, MD 20664 - Pomfret, MD 20675 - Port Tobacco, MD 20677 - Welcome, MD 20693 - White Plains, MD 20695 - Abell, MD 20606 - Avenue, MD 20609 - Bushwood, MD 20618 - California, MD 20619 - Callaway, MD 20620 - Chaptico, MD 20621 - Charlotte Hall, MD 20622 - Clements, MD 20624 - Colton's Point, MD 20626 - Compton, MD 20627 - Dameron, MD 20628 - Drayden, MD 20630 - Great Mills, MD 20634 - Helen, MD 20635 - Hollywood, MD 20636 - Leonardtown, MD 20650 - Lexington Park, MD 20653 - Loveville, MD 20656 - Mechanicsville, MD 20659 - Morganza, MD 20660 - Park Hall, MD 20667 - Patuxent River, MD 20670 - Piney Point, MD 20674 - Ridge, MD 20680 - St. Inigoes, MD 20684 - St. Mary's City, MD 20686 - Scotland, MD 20687 - Tall Timbers, MD 20690 - Valley Lee, MD 20692 - Broomes Island, MD 20615 - Dowell, MD 20629 - Huntingtown, MD 20639 - Lusby, MD 20657 - Port Republic, MD 20676 - Prince Frederick, MD 20678 - Saint Leonard, MD 20685 - Solomons, MD 20688 - Sunderland, MD 20689 - North Beach, MD 20714 - Chesapeake Beach, MD 20732 - Owings, MD 20736 - Dunkirk, MD 20754 - Friendship, MD 20758

Google Mechanical  39560 Jarrell Drive   Mechanicsville, MD  20659  301.481.9281

support@googlemechanical.com


Google Mechanical is a full service plumbing, electrical, heating and air conditioning company. 

We work in the Maryland cities of Calvert, Charles, and St. Mary's Counties daily.

  • Waldorf, MD
  • La Plata, MD
  • Indian Head, MD
  • White Plains, MD
  • Hughesville, MD
  • Charlotte Hall, MD
  • Mechanicsville, MD
  • Hollywood, MD
  • California, MD
  • Great Mills, MD
  • Leonardtown, MD
  • Lexington Park, MD
  • Solomons, MD
  • Lusby, MD
  • St. Leonard, MD
  • Prince Frederick, MD

Click or Call now for a solution to your problem - first time accurate diagnosis guaranteed.

 

Plumbing Technical Tips

SO MD Homeowners should be familiar with location of main gas valve - main water valve - undersink cut off valves for emergency service.

WATER HEATERS

To relight a gas water heater, always check the side of the water heater or your owner’s manual first for step-by-step instructions. The manufacturer will typically advise you to:

1) Turn the gas valve to OFF and wait a few minutes

2) Turn thermostat to lowest setting

3) Turn the gas valve to PILOT and push down on it. Hold it down to begin the flow of gas through the pilot gas supply tube.

4) Holding the button down, use an extended lighter to ignite the gas at the end of the supply tube. You may have to hold the flame there for a few seconds if air is in the line.

5) Continue holding down the control button for a minute or so after the pilot is lit, long enough for the pilot to heat the thermocouple. Then release the control button.

6) Once the pilot light stays lit after you release the control button, turn the control to the ON position.

7) If the pilot doesn’t light or stay lit after a couple of attempts contact Google Mechanical your SOUTHERN MARYLAND hot water heater service,repair,installation,maintenance company.

ELECTRIC WATER HEATERS

1) Check Your Main Hose Electrical Panel For 240 volt double pole

WATER HEATER BREAKER

2) Turn off breaker wait 5 minutes and reset breaker - Hold your ear next to tank and listen for electrical hummimng.

TANKLESS HOT WATER HEATERS

1) Check for proper gas or electric supply

2) Check faucets for correct water flow - open several faucets at same time

CAUTION - IF YOUR Waldorf, MD La Plata, MD Indian Head, MD White Plains, MD Hughesville, MD Charlotte Hall, MD Mechanicsville, MD Hollywood, MD California, MD Great Mills, MD Lexington Park, MD Solomons, MD Lusby, MD St. Leonard, MD Prince Frederick, MD hot water heater has a sealed burner or electrical supply do not attempt to light the water heater pilot.

Turn off your gas supply and electrical circuit breaker and contact the trained hot water heater technicians at Google Mechanical. PowerVented Powerventer Tankless water heaters should be serviced installed maintained and repaired by our licensed insured and bonded so md southern maryland hot water heater technicians. 

 

Heating Technical Tips

SO MD Homeowners should be familiar with location of main double pole circuit breaker in main panel - emergency electric back up heat circuit breaker - air conditioner heat pump disconnect box

1) Keep a close eye, as well as ear on your equipment. A loud noise when a furnace,heat pump,or boiler starts indicates a immediate need for service.. Many times simple maintenance such as cleaning, lubrication, tightening a loose fan blade or mount, can eliminate costly repairs.

2) If your home has an older mercury thermostat replace it with a digital thermostat for immediate energy savings.

3) Whether your home is heated by a forced-air furnace, an oil-fired gravity furnace, electric radiant heaters, a heat pump, or some other means, the key to affordable comfort is making sure that you have an efficient system that’s operating properly.

4) Rearrange your furniture. Take inventory of each room: Are large pieces of furniture or drapery blocking off registers and keeping heated and cooled air from circulating throughout the rest of the space? Move anything obstructing your airflow.

5) Never close registers if you have a heat pump (this will make it work harder)

Maintenance and Repair directly affects an electric heating, heat pumps, gas furnace system's performance and energy use. Neglecting necessary maintenance and service leads to a decline in comfort and a rise in energy bills.

By conducting regular check-ups and cleaning the heating, heat pump unit and its components, a Waldorf, MD La Plata, MD Indian Head, MD White Plains, MD Hughesville, MD Charlotte Hall, MD Mechanicsville, MD Hollywood, MD California, MD Great Mills, MD Lexington Park, MD Solomons, MD Lusby, MD St. Leonard, MD Prince Frederick, MD homeowner can ensure optimal enjoyment for the life of their so md hot water heating and heating system and heat pump system.

Cooling Technical Tips

SO MD Homeowners should be familiar with location of main double pole circuit breaker in main panel - air conditioner heat pump disconnect box

1) Regularly change any filters and keep a close eye, as well as ear on your equipment You can generally find the air filter along the return duct, in walls, ceilings or the air conditioner itself, or mounted on the grill face in the room.

2) Maintain at least a 2-foot clearance around the outdoor unit, free of debris and foliage.

3) Regularly inspect the air conditioner unit's condensate drain - A safety cut off trap is a wise investment for your Southern MD air conditioning system.

4) If your home has an older mercury thermostat replace it with a digital thermostat for immediate energy savings.

Maintenance and Repair directly affects an air conditioning system's performance and energy use. Neglecting necessary maintenance and service leads to a decline in comfort and a rise in energy bills. By conducting regular check-ups and cleaning the air conditioning, heat pump unit and its components, a Waldorf, MD La Plata, MD Indian Head, MD White Plains, MD Hughesville, MD Charlotte Hall, MD Mechanicsville, MD Hollywood, MD California, MD Great Mills, MD Lexington Park, MD Solomons, MD Lusby, MD St. Leonard, MD Prince Frederick, MD homeowner can ensure optimal enjoyment for the life of their so md air conditioning,heat pump and cooling system.

Electrical Technical Tips

SO MD Homeowners should be familiar with location of main electrical panel - subpanel cicuit breakers for emergency repair

SWITCHES and OUTLETS

There are two clear indications of a worn-out electrical outlet:

1)The cord's weight pulls the plug out of the outlet

2) The plug blades do not make constant electrical contact within the outlets slots.The outlet is old and has been used so often that it's worn out.

3)The most common malfunctions of switches are that they simply cease to work or they give off sparks when you flip them off and on.

4)Electrical Switches and outlets should be replaced an electrical switch and outlet needs to work efficiently and safely .

Always assume an electrical receptacle or apparatus is energized until you prove otherwise with a circuit tester.

CIRCUIT BREAKERS and FUSES

Circuits to all the devices in your home that require electrical power start from the fuses or circuit breakers Caution: Never try to defeat this built-in safety system by replacing a FUSE or circuit breaker with one of a higher current-carrying capacity. Don't replace a 15-ampere fuse with a 25-ampere fuse. Replace fuses and breakers only
with ones of the same size and amperage.

All electrical devices and electrical wires are designed to provide the greatest measure of electrical safety A fuse that blows or a circuit breaker that trips is doing its job properly, indicating that there is trouble somewhere in the circuit if a circuit goes off, there may be some visual or audible indication of the trouble spot, such as a bright flare from a lamp or a sputtering, sparking sound from an appliance, that will immediately lead you to the source of the
trouble.

If the fuse is blown or the circuit breaker refuses to reset, the problem lies in either faulty equipment or wiring is faulty, probably due to a short in a junction or receptacle box or in the house wiring itself.A circuit breaker is a remarkably trouble-free device, but once in a while a breaker does fail. The result is the circuit will not energize, even when it's fault-free. When a circuit goes out, if the circuit breaker itself has a distinctive burnt plastic smell, if the trip handle is loose and wobbly, or if the breaker rattles when you move it, the breaker has probably failed.

 APPLIANCES - HEATING - AIR CONDITIONING - PLUMBING EQUIPMENT

Three main lines (older houses may have two) are responsible for supplying 110-120/220-240 volts AC (alternating current) to your Waldorf, MD La Plata, MD Indian Head, MD White Plains, MD Hughesville, MD Charlotte Hall, MD Mechanicsville, MD Hollywood, MD California, MD Great Mills, MD Lexington Park, MD Solomons, MD Lusby, MD St. Leonard, MD Prince Frederick, MD home. The exact voltage varies depending on several external factors.

This three-wire system provides you with 110-120-volt power for lighting, outlets and small appliances as well as 220-240-volt power for air conditioning, an electric range, a clothes dryer, a water heater, and electric heating.Visit our How It Works Library to see how your southern maryland home systems operate. Maintenance repair and service of your so md home electrical switches, outlets,circuit breakers, GFI outlets and lighting circuits by our licensed techs will keep you safe.