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

Local Reviews

Rated 4.9 out of 5 stars based on 890 customer reviews

Knowledgeable electricians with old school work ethics!

Nick did a fantastic job replacing our old recessed lights with new LED lights. He explained all of my options and made sure I was happy with my choices. He was prompt, professional and very friendly. I felt very comfortable with him and had total confidence in his ability. Ian joined him today to finish the job. He was also excellent. Both men worked very patiently and took pride in a job well done. They both commented that they wanted to make sure I was totally satisfied and happy with the final product. I was thrilled. I will be a Haas and Sons customer for life.

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Professional service

Michael is a real professional! Excellent communication, friendly, knowledgeable, and addressed all of my electrical needs.

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Professional, friendly service!!!

I highly recommend Haas and Sons for any electrical work. They were recommended to me by a friend, and I’m glad I gave them a call. I had a big job done: they replaced all the plugs and switches, electrical panel, mast on the roof, and replaced a few lights in the basement and in addition installed a dining room light for free. I have a really cluttered house and they had to move a lot of junk and heavy furniture to find and replace the plugs, but they were very good natured about it. The crew worked very hard and got the job done quicker than I expected. They were all very professional and pleasant, and I feel confident in their work. I will not hesitate to hire them again in the future.

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Excellent service!

As usual, excellent knowledge and problem-solving skills!

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Professional service

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Excellent Service!

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Excellent Service

Nick was informative and professional

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Great service

Yes, I was very satisfied with the service on yesterday. Nick did a phenomenal job with servicing the electrical problem and sharing knowledgeable information for future references. I definitely would use the service again.

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Excellent Service!

Extremely professional, knowledgeable, and fixed the problem in no time at all!

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Excellent service very professional

Mike arrived on time and was very professional, explained how work would be done and was very informative about types of install.

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Great Service -

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Excellent service.

Dennis succeeded in promptly troubleshooting and identifying the cause of our electrical issue. He then repaired the faulty outlet, while explaining why it occurred.

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Excellent Service!

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Great

Very capable highly intellent about subjects

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Job Locations

Michael W.

Michael W. Job Checkin

This solution includes the installation of arc fault breakers for 2 basement 120V circuits, updates to grounding and bonding and repairs for the open air splice. In addition we shall complete the rough in of the 9 receptacles and 2 switches.

This solution includes the installation of arc fault breakers for 2 basement 120V circuits, updates to grounding and bonding and repairs for the open air splice. In addition we shall complete the rough in of the 9 receptacles and 2 switches. This solution includes the installation of arc fault breakers for 2 basement 120V circuits, updates to grounding and bonding and repairs for the open air splice. In addition we shall complete the rough in of the 9 receptacles and 2 switches.

Nicholas T.

Nicholas T. Job Checkin

Install new 12 gauge wire from garage to post light inside PVC. The reason for today’s visit was to assess the garage lights and post light still tripping the breaker. After assessing the issue, we were able to determine that the line going from the garage out to the post is causing the breaker to trip due to bleeding voltage underground. In order to remedy this issue we will be directional boarding a new PVC line from the garage sidewall over to the post location and installing a new line inside. 12/3 Returned today and completed the new line to the post light. We installed PVC from the existing LB on the side of the garage through the ground over to the existing post light. We installed a new 12 two UF underground feeder cable straight from the panel into the existing light and wired. Once completed, we turned everything on and it is working as it should. Nick 410.301.5485

Install new 12 gauge wire from garage to post light inside PVC.
The reason for today’s visit was to assess the garage lights and post light still tripping the breaker. After assessing the issue, we were able to determine that the line going from the garage out to the post is causing the breaker to trip due to bleeding voltage underground. In order to remedy this issue we will be directional boarding a new PVC line from the garage sidewall over to the post location and installing a new line inside.
12/3

Returned today and completed the new line to the post light. We installed PVC from the existing LB on the side of the garage through the ground over to the existing post light. We installed a new 12 two UF underground feeder cable straight from the panel into the existing light and wired. Once completed, we turned everything on and it is working as it should. 

Nick 410.301.5485 Install new 12 gauge wire from garage to post light inside PVC.
The reason for today’s visit was to assess the garage lights and post light still tripping the breaker. After assessing the issue, we were able to determine that the line going from the garage out to the post is causing the breaker to trip due to bleeding voltage underground. In order to remedy this issue we will be directional boarding a new PVC line from the garage sidewall over to the post location and installing a new line inside.
12/3

Returned today and completed the new line to the post light. We installed PVC from the existing LB on the side of the garage through the ground over to the existing post light. We installed a new 12 two UF underground feeder cable straight from the panel into the existing light and wired. Once completed, we turned everything on and it is working as it should. 

Nick 410.301.5485

Nicholas T.

Nicholas T. Job Checkin

Replace front gfci The reason for today’s visit was to assess power loss to the front GFCI that the Christmas lights are plugged into. We arrived at Home. Customer had their Christmas lights plugged into the front receptacle however, none of them were working. We tested power and tried to reset the GFCI, however it would not reset. We went around Home check in the other GFCI‘s to see if they may be controlled this receptacle however none did. We were able to determine that this is a dedicated 20 of circuits that is not on with any of the other ones. We also found that the GFCI itself had gone bad so we recommend replacing and installing a new in use cover to properly protect devices when plugged in. Customer agreed so he went ahead and replaced it. Once we plugged in the Christmas lights, they turned back on however the middle strand did not. The lights before this strand and the lights after it are working, however there is an issue with these middle lights so they will need to be rep

Replace front gfci
The reason for today’s visit was to assess power loss to the front GFCI that the Christmas lights are plugged into. We arrived at Home. Customer had their Christmas lights plugged into the front receptacle however, none of them were working. We tested power and tried to reset the GFCI, however it would not reset. We went around Home check in the other GFCI‘s to see if they may be controlled this receptacle however none did. We were able to determine that this is a dedicated 20 of circuits that is not on with any of the other ones. We also found that the GFCI itself had gone bad so we recommend replacing and installing a new in use cover to properly protect devices when plugged in. Customer agreed so he went ahead and replaced it. Once we plugged in the Christmas lights, they turned back on however the middle strand did not. The lights before this strand and the lights after it are working, however there is an issue with these middle lights so they will need to be rep

Nicholas T.

Nicholas T. Job Checkin

Replacement of two bathroom, exhaust fans with similar size fans that are slightly quieter and slightly stronger. Installation of a new dimmer switch to control dining room light with new dimmable candelabra bulbs. Replacement of smoke detector with a new carbon monoxide/smoke detector.

Replacement of two bathroom, exhaust fans with similar size fans that are slightly quieter and slightly stronger.
Installation of a new dimmer switch to control dining room light with new dimmable candelabra bulbs.
Replacement of smoke detector with a new carbon monoxide/smoke detector.
Replacement of two bathroom, exhaust fans with similar size fans that are slightly quieter and slightly stronger.
Installation of a new dimmer switch to control dining room light with new dimmable candelabra bulbs.
Replacement of smoke detector with a new carbon monoxide/smoke detector.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the various electrical tasks.

We have delivered pricing regarding the various electrical tasks. We have delivered pricing regarding the various electrical tasks.

Michael W.

Michael W. Job Checkin

This solution includes the installation of a customer supplied alarm. We have installed the new customer supplied alarm on the first floor.

This solution includes the installation of a customer supplied alarm.
We have installed the new customer supplied alarm on the first floor. This solution includes the installation of a customer supplied alarm.
We have installed the new customer supplied alarm on the first floor.

Nicholas T.

Nicholas T. Job Checkin

Provided estimates for upgrades in the hallway bathroom, master bathroom, and two hallway bedrooms with customer supplied devices as well as Surge protection in main panel based on our observations of no current surge protection.

Provided estimates for upgrades in the hallway bathroom, master bathroom, and two hallway bedrooms with customer supplied devices as well as Surge protection in main panel based on our observations of no current surge protection. Provided estimates for upgrades in the hallway bathroom, master bathroom, and two hallway bedrooms with customer supplied devices as well as Surge protection in main panel based on our observations of no current surge protection.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the installation of the receptacles.

We have delivered pricing regarding the installation of the receptacles. We have delivered pricing regarding the installation of the receptacles.

Michael W.

Michael W. Job Checkin

This solution includes the installation of a new foyer receptacle. We have installed the new receptacle in foyer.

This solution includes the installation of a new foyer receptacle.
We have installed the new receptacle in foyer. This solution includes the installation of a new foyer receptacle.
We have installed the new receptacle in foyer.

Nicholas T.

Nicholas T. Job Checkin

replace main panel in the back garage Install new 200 amp main breaker service with all new code updates. Installation of emergency disconnect on outside of the home. Installation of whole home surge protection in the main panel. Installation of new grounding system. We will pull an electrical permit. We will run a new 100 amp line to the basement sub panel .

replace main panel in the back garage
Install new 200 amp main breaker service with all new code updates.
Installation of emergency disconnect on outside of the home.
Installation of whole home surge protection in the main panel.
Installation of new grounding system.
We will pull an electrical permit.
We will run a new 100 amp line to the basement sub panel . replace main panel in the back garage
Install new 200 amp main breaker service with all new code updates.
Installation of emergency disconnect on outside of the home.
Installation of whole home surge protection in the main panel.
Installation of new grounding system.
We will pull an electrical permit.
We will run a new 100 amp line to the basement sub panel .

Michael W.

Michael W. Job Checkin

This solution includes the replacement of the existing receptacle with a new gfci receptacle. We have replaced the existing damaged receptacle in the master bedroom. We strongly recommend that the home has the receptacles and switches replaced, ensuring proper terminations.

This solution includes the replacement of the existing receptacle with a new gfci receptacle.

We have replaced the existing damaged receptacle in the master bedroom. 
We strongly recommend that the home has the receptacles and switches replaced, ensuring proper terminations. This solution includes the replacement of the existing receptacle with a new gfci receptacle.

We have replaced the existing damaged receptacle in the master bedroom. 
We strongly recommend that the home has the receptacles and switches replaced, ensuring proper terminations.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the exterior receptacle on front of home. We have determined that dishwasher is working and has power.

We have delivered pricing regarding the exterior receptacle on front of home.
We have determined that dishwasher is working and has power. We have delivered pricing regarding the exterior receptacle on front of home.
We have determined that dishwasher is working and has power.

Michael W.

Michael W. Job Checkin

We have determined that the RV circuit is not in jeopardy.

We have determined that the RV circuit is not in jeopardy. We have determined that the RV circuit is not in jeopardy.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the baseboard heater replacement.

We have delivered pricing regarding the baseboard heater replacement. We have delivered pricing regarding the baseboard heater replacement.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the installation of the EV charger and dedicated circuit.

We have delivered pricing regarding the installation of the EV charger and dedicated circuit.