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

Local Reviews

Rated 4.9 out of 5 stars based on 891 customer reviews

Quick and Efficient Service

I called on a Friday, Monday they did the assessment and the work was completed the following Friday as scheduled/agreed. The electricians were very efficient and friendly, offering advice when and where asked. Nick and Ian were great, would recommend.

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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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Job Locations

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the dedicated circuit for sump pump.

We have delivered pricing regarding the dedicated circuit for sump pump. We have delivered pricing regarding the dedicated circuit for sump pump.

Nicholas T.

Nicholas T. Job Checkin

Box expansion in hall bathroom from 2 gang to 3 gang, install customer supplied GFCI and Switch Install stack switch in hall bedroom 1 for ceiling fan/light combo; pull additional switch leg to fan from box. Attic access Install stack switch in hall bedroom 2 for ceiling fan/light combo; pull additional switch leg to fan from box. Attic access * Estimate subject to change if boxes for fans are not fan rated * Replace master bath fan switch with customer supplied timer switch

Box expansion in hall bathroom from 2 gang to 3 gang, install customer supplied GFCI and Switch
Install stack switch in hall bedroom 1 for ceiling fan/light combo; pull additional switch leg to fan from box. Attic access 
Install stack switch in hall bedroom 2 for ceiling fan/light combo; pull additional switch leg to fan from box. Attic access 
* Estimate subject to change if boxes for fans are not fan rated *
Replace master bath fan switch with customer supplied timer switch Box expansion in hall bathroom from 2 gang to 3 gang, install customer supplied GFCI and Switch
Install stack switch in hall bedroom 1 for ceiling fan/light combo; pull additional switch leg to fan from box. Attic access 
Install stack switch in hall bedroom 2 for ceiling fan/light combo; pull additional switch leg to fan from box. Attic access 
* Estimate subject to change if boxes for fans are not fan rated *
Replace master bath fan switch with customer supplied timer switch

Michael W.

Michael W. Job Checkin

This solution includes the replacement of the front exterior gfci. We have replaced the exterior gfci on front exterior.

This solution includes the replacement of the front exterior gfci. We have replaced the exterior gfci on front exterior. This solution includes the replacement of the front exterior gfci. We have replaced the exterior gfci on front exterior.

Nicholas T.

Nicholas T. Job Checkin

We will be disconnecting lines, running to attic fans and install installing junction boxes with blank plate plates in case they are needed for future use.

We will be disconnecting lines, running to attic fans and install installing junction boxes with blank plate plates in case they are needed for future use. We will be disconnecting lines, running to attic fans and install installing junction boxes with blank plate plates in case they are needed for future use.

Nicholas T.

Nicholas T. Job Checkin

Tested power in the kitchen receptacles as well as the microwave receptacle and found that the microwave itself has burnt up.


Michael W.

Michael W. Job Checkin

This solution includes the installation of a dedicated 120V 20A circuit with a nema 5-20P receptacle to service the new sauna. We have installed the new 120V 20A circuit and receptacle.

This solution includes the installation of a dedicated 120V 20A circuit with a nema 5-20P receptacle to service the new sauna.
We have installed the new 120V 20A circuit and receptacle. This solution includes the installation of a dedicated 120V 20A circuit with a nema 5-20P receptacle to service the new sauna.
We have installed the new 120V 20A circuit and receptacle.

Nicholas T.

Nicholas T. Job Checkin

Install Panasonic whisper 110 CFM exhaust fan with new ventilation in new location Install new switch leg for new installation Demo old exhaust fan in original location DRYWALL REPAIR WILL BE NEEDED POST INSTALLATION

Install Panasonic whisper 110 CFM exhaust fan with new ventilation in new location 
Install new switch leg for new installation
Demo old exhaust fan in original location 

DRYWALL REPAIR WILL BE NEEDED POST INSTALLATION Install Panasonic whisper 110 CFM exhaust fan with new ventilation in new location 
Install new switch leg for new installation
Demo old exhaust fan in original location 

DRYWALL REPAIR WILL BE NEEDED POST INSTALLATION

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.