403 Headquarters Dr. Unit 5
Millersville, MD 21108
(443) 396-3797

Local Reviews
for ellicott city, md

Rated 5.0 out of 5 stars based on 62 customer reviews

They were wonderful

I was so very happy with the service we received. They guys were quick and professional. Everything was clearly explained and expertly handled. They accommodated our large dogs and ninja cat easily and were very good about making sure everything was safely put back together before they left.

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Attic Fan Diagnosis - Need New

Very knowledgeable, extremely thorough and pleasure to work with

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Amazing A

Josh and Tyler were the utmost professionals and did exceptional work! We will use Haas and Sons again without hesitation!!

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Great service

Michael was great - very personable and knowledgeable. 5/5 recommendation

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Excellent service

A throughly excellent experience… splendid work at a fair price.

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Very informative and thorough.

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GOOD Service. Price could have been less.

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Excellent installation. Very professional job .

Mike showed up on time and called me before he arrived. He did complete inspection of electrical system and recommend some repairs for safety. He cleaned up his job site in a manner that it looked like he was never in the room.

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Excellent Service!!

Outstanding company. I would highly recommend Haas&Sons. Genny our technician was very friendly told us the problem and fixed it in a timely manner. Over all outstanding service.

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Excellent Service!

Michael was prompt, efficient, courteous and highly competent.

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Very satisfied with service provided by Josh

Josh was very professional, did a thorough review of our house, identified some issues, provided explanations of the issues and resolution options and completed the work efficiently.

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Excellent Service

Alex is incredibly knowledgeable and professional. He helped guide us through the various options available and was prompt with inspection and service. Will definitely come back to Haas & Sons for any future electrical needs and ask for Alex.

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Knowledgeable Tech!

I was very pleased with Dennis’ technical understanding of the electrical modification I was seeking. He thoroughly explained both of my options and gave me quotes. Dennis and his assistant were polite, pleasant, and thorough.

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Great service!

Alex was friendly and extremely knowledgeable.

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Excellent service

Thorough, explained as much as possible, professional, on time. No complaints!

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Job Locations
for ellicott city, md

Cole P.

Cole P. Job Checkin

Job Summary - - Replacement of the Dryer Receptacle - Replacement of a Duplex Receptacle Job Notes - Reason for today’s visit with the customer was a To-Do list. The customer mentioned new installation of smoke detectors, new ceiling fans, replacing devices, and installing a four prong plug for the dryer in place of the old one. The panel is an older Bryant with the cover framed in. I was unable to get it off without tearing out the drywall. Regardless this panel is at its time of replacement and I provided the customer with a quote to replace it. The four smokes were to be installed in the upstairs bedrooms. The three ceiling fans were going to be installed in the upstairs bedrooms except for the primary. Finally the largest concern besides the dryer plug was a burnt up receptacle in the upstairs room to the right of the stairs. After building quotes the customer decided to opt out of the membership and move forward with the installation of a new dryer receptacle and replacing the u

Job Summary -
- Replacement of the Dryer Receptacle
- Replacement of a Duplex Receptacle

Job Notes - 
Reason for today’s visit with the customer was a To-Do list. The customer mentioned new installation of smoke detectors, new ceiling fans, replacing devices, and installing a four prong plug for the dryer in place of the old one. The panel is an older Bryant with the cover framed in. I was unable to get it off without tearing out the drywall. Regardless this panel is at its time of replacement and I provided the customer with a quote to replace it. The four smokes were to be installed in the upstairs bedrooms. The three ceiling fans were going to be installed in the upstairs bedrooms except for the primary. Finally the largest concern besides the dryer plug was a burnt up receptacle in the upstairs room to the right of the stairs. After building quotes the customer decided to opt out of the membership and move forward with the installation of a new dryer receptacle and replacing the u Job Summary -
- Replacement of the Dryer Receptacle
- Replacement of a Duplex Receptacle

Job Notes - 
Reason for today’s visit with the customer was a To-Do list. The customer mentioned new installation of smoke detectors, new ceiling fans, replacing devices, and installing a four prong plug for the dryer in place of the old one. The panel is an older Bryant with the cover framed in. I was unable to get it off without tearing out the drywall. Regardless this panel is at its time of replacement and I provided the customer with a quote to replace it. The four smokes were to be installed in the upstairs bedrooms. The three ceiling fans were going to be installed in the upstairs bedrooms except for the primary. Finally the largest concern besides the dryer plug was a burnt up receptacle in the upstairs room to the right of the stairs. After building quotes the customer decided to opt out of the membership and move forward with the installation of a new dryer receptacle and replacing the u

Nicholas T.

Nicholas T. Job Checkin

- Replacement of the 150 AMP Panel - Installation of a 150 AMP Panel - Installation of two new Ground Rods - Installation of a Surge Protector - Installation of an Exterior Disconnect - Howard County Permit - Redevicing the entire home. This includes proper pigtail terminations of all Switches, GFCI’s, Dimmers, and Receptacles. This is needed due to the home currently having backstabbed devices and older devices that are failing. we returned today and completed the remaining work. We replaced the main panel and insult all new, matching breakers and labeled once complete completed.. Job is now complete

- Replacement of the 150 AMP Panel
- Installation of a 150 AMP Panel
- Installation of two new Ground Rods
- Installation of a Surge Protector
- Installation of an Exterior Disconnect
- Howard County Permit
- Redevicing the entire home. This includes proper pigtail terminations of all Switches, GFCI’s, Dimmers, and Receptacles. This is needed due to the home currently having backstabbed devices and older devices that are failing. we returned today and completed the remaining work. We replaced the main panel and insult all new, matching breakers and labeled once complete completed..
Job is now complete - Replacement of the 150 AMP Panel
- Installation of a 150 AMP Panel
- Installation of two new Ground Rods
- Installation of a Surge Protector
- Installation of an Exterior Disconnect
- Howard County Permit
- Redevicing the entire home. This includes proper pigtail terminations of all Switches, GFCI’s, Dimmers, and Receptacles. This is needed due to the home currently having backstabbed devices and older devices that are failing. we returned today and completed the remaining work. We replaced the main panel and insult all new, matching breakers and labeled once complete completed..
Job is now complete

Nicholas T.

Nicholas T. Job Checkin

Installation of 4 new wafer style recessed lights in the family room Installation of 2 new wafer style recessed lights in the living room with a new switch added. Installation of 2 new recessed can in the primary bedroom that will be tapped of the 2 existing. Installation of 3 customer supplied camera dimmer.

Installation of 4 new wafer style recessed lights in the family room
Installation of 2 new wafer style recessed lights in the living room with a new switch added.
Installation of 2 new recessed can in the primary bedroom that will be tapped of the 2 existing.
Installation of 3 customer supplied camera dimmer. Installation of 4 new wafer style recessed lights in the family room
Installation of 2 new wafer style recessed lights in the living room with a new switch added.
Installation of 2 new recessed can in the primary bedroom that will be tapped of the 2 existing.
Installation of 3 customer supplied camera dimmer.

Nicholas T.

Nicholas T. Job Checkin

Today we checked power at the primary bathroom GFCI and found that it has proper power. It is, however, the original one from the building in which we do recommend replacing. We provide a pricing to replace the GFCI as well as to install new recessed lights in place of the existing 4 foot fluorescent light in the kitchen.

Today we checked power at the primary bathroom GFCI and found that it has proper power. It is, however, the original one from the building in which we do recommend replacing. We provide a pricing to replace the GFCI as well as to install new recessed lights in place of the existing 4 foot fluorescent light in the kitchen. Today we checked power at the primary bathroom GFCI and found that it has proper power. It is, however, the original one from the building in which we do recommend replacing. We provide a pricing to replace the GFCI as well as to install new recessed lights in place of the existing 4 foot fluorescent light in the kitchen.

Nicholas T.

Nicholas T. Job Checkin

Today we looked at the basement wiring. There’s no framing to be able to provide pricing to correct the wiring at the basement at this time. However, once framing is up, we will need to do a complete rewire as all of the boxes are completely rusted out and the wire that is there was installed in the 70s and is a style of wire that we cannot put back in place. Being that the basement ceiling and walls are all open. The wires that are there will also not be long enough to make it to the new locations. Once frame is installed, we can return to provide pricing for new wiring for the basement receptacles and lighting.

Today we looked at the basement wiring. There’s no framing to be able to provide pricing to correct the wiring at the basement at this time. However, once framing is up, we will need to do a complete rewire as all of the boxes are completely rusted out and the wire that is there was installed in the 70s and is a style of wire that we cannot put back in place. Being that the basement ceiling and walls are all open. The wires that are there will also not be long enough to make it to the new locations.
Once frame is installed, we can return to provide pricing for new wiring for the basement receptacles and lighting. Today we looked at the basement wiring. There’s no framing to be able to provide pricing to correct the wiring at the basement at this time. However, once framing is up, we will need to do a complete rewire as all of the boxes are completely rusted out and the wire that is there was installed in the 70s and is a style of wire that we cannot put back in place. Being that the basement ceiling and walls are all open. The wires that are there will also not be long enough to make it to the new locations.
Once frame is installed, we can return to provide pricing for new wiring for the basement receptacles and lighting.

Nicholas T.

Nicholas T. Job Checkin

Replace exterior receptacle on back of home. Replace wireless doorbell system Covert 2 lamp fluorescent fixture to LED and remove ballast The reason for today’s visit was to check a back receptacle that was not working after they had the house washed. They also had a fluorescent light that was not working in the basement and requested to have the wireless doorbell system replaced as the old one was no longer working. The back receptacle is not working due to a trip GCI in the basement that only had these two receptacles on the circuit. We went ahead and replaced the back receptacle with a new weather resistant one with a new in use cover. We also converted the basement light to LED by installing LED bypass lamps and removing the ballast. Finally, we installed a new wireless doorbell kit with two push buttons one at the front door and one to side.

Replace exterior receptacle on back of home.
Replace wireless doorbell system
Covert 2 lamp fluorescent fixture to LED and remove ballast
The reason for today’s visit was to check a back receptacle that was not working after they had the house washed. They also had a fluorescent light that was not working in the basement and requested to have the wireless doorbell system replaced as the old one was no longer working. The back receptacle is not working due to a trip GCI in the basement that only had these two receptacles on the circuit. We went ahead and replaced the back receptacle with a new weather resistant one with a new in use cover. We also converted the basement light to LED by installing LED bypass lamps and removing the ballast. Finally, we installed a new wireless doorbell kit with two push buttons one at the front door and one to side. Replace exterior receptacle on back of home.
Replace wireless doorbell system
Covert 2 lamp fluorescent fixture to LED and remove ballast
The reason for today’s visit was to check a back receptacle that was not working after they had the house washed. They also had a fluorescent light that was not working in the basement and requested to have the wireless doorbell system replaced as the old one was no longer working. The back receptacle is not working due to a trip GCI in the basement that only had these two receptacles on the circuit. We went ahead and replaced the back receptacle with a new weather resistant one with a new in use cover. We also converted the basement light to LED by installing LED bypass lamps and removing the ballast. Finally, we installed a new wireless doorbell kit with two push buttons one at the front door and one to side.

Michael W.

Michael W. Job Checkin

this solution includes the repair to the damaged live wire exposed at broken conduit on front exterior of home, ensuring it is no longer live and nuisance tripping the circuit. In addition we shall replace 4 switches in the bathroom areas, one in first floor and 3 on the second floor of home. We have replaced the damaged switches in the bathrooms. We have also ensured that the exposed live wire on front exterior has been disconnected from its source in garage.

this solution includes the repair to the damaged live wire exposed at broken conduit on front exterior of home, ensuring it is no longer live and nuisance tripping the circuit. In addition we shall replace 4 switches in the bathroom areas, one in first floor and 3 on the second floor of home.
We have replaced the damaged switches in the bathrooms. We have also ensured that the exposed live wire on front exterior has been disconnected from its source in garage. this solution includes the repair to the damaged live wire exposed at broken conduit on front exterior of home, ensuring it is no longer live and nuisance tripping the circuit. In addition we shall replace 4 switches in the bathroom areas, one in first floor and 3 on the second floor of home.
We have replaced the damaged switches in the bathrooms. We have also ensured that the exposed live wire on front exterior has been disconnected from its source in garage.

Nicholas T.

Nicholas T. Job Checkin

Provided pricing to repair wiring unfinished area of basement as well as to install proper gfci protection. Provided pricing to replace all devices on the main level and install proper gfci protection in kitchen and back porch.


Michael W.

Michael W. Job Checkin

We have provided pricing regarding the wiring replacement for the thermostat.

We have provided pricing regarding the wiring replacement for the thermostat.

Michael W.

Michael W. Job Checkin

This solution includes the installation of customer supplied gfci in bathroom and a customer supplied TRWR receptacle on the block face of the wall on patio. We have installed the new customer supplied receptacle at patio block wall and replaced the existing damaged gfci in basement bathroom with a new customer supplied device.

This solution includes the installation of customer supplied gfci in bathroom and a customer supplied TRWR receptacle on the block face of the wall on patio. 

We have installed the new customer supplied receptacle at patio block wall and replaced the existing damaged gfci in basement bathroom with a new customer supplied device. This solution includes the installation of customer supplied gfci in bathroom and a customer supplied TRWR receptacle on the block face of the wall on patio. 

We have installed the new customer supplied receptacle at patio block wall and replaced the existing damaged gfci in basement bathroom with a new customer supplied device.

Nicholas T.

Nicholas T. Job Checkin

Replaced front receptacle We also provided pricing to replace the main panel and install all matching breakers with code updates and a permit. The reason for the full replacement would be due to the improper breaker for the furnace circuit that does not match the existing panel as well as the over 40 year age mark.

Replaced front receptacle 
We also provided pricing to replace the main panel and install all matching breakers with code updates and a permit.
The reason for the full replacement would be due to the improper breaker for the furnace circuit that does not match the existing panel as well as the over 40 year age mark. Replaced front receptacle 
We also provided pricing to replace the main panel and install all matching breakers with code updates and a permit.
The reason for the full replacement would be due to the improper breaker for the furnace circuit that does not match the existing panel as well as the over 40 year age mark.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the electrical repairs.

We have delivered pricing regarding the electrical repairs. We have delivered pricing regarding the electrical repairs.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the sub panel and EV circuits.

We have delivered pricing regarding the sub panel and EV circuits. We have delivered pricing regarding the sub panel and EV circuits.

Nicholas T.

Nicholas T. Job Checkin

Replace 4 garage receptacles The reason for today’s visit was to look at power loss in the garage receptacles. We arrived we found that there were four receptacles in the garage that were only 94 V. While searching for our power loss, we found that there was a GFCI in the closet in the room beside the garage which powered the circuit. The GFCI was working properly however, when we open the first receptacle behind the freezer, we found that the neutral wire was burnt and was barely into the back of the receptacle. We showed a customer and informed her that their devices were backstabbed and that they should be replaced. Customer said that she just wanted the floor in the garage done today and that she would look into having the rest of the house, checked out at a later date as she had just moved in.


dennis@haasandsons.com

dennis@haasandsons.com Job Checkin

9/4/25 Client has decided not go forward with the project. We have already pulled the electrical permit and will now cancel it. We will refund the balance from the deposit to their CC.