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

Local Reviews

Rated 4.9 out of 5 stars based on 898 customer reviews

Really great work.

Michael did a fabulous job of getting my "floor thermostat" to work. In addition, he communicated well and was patient and clear when answering my questions. Haas uses AI to make appointments. It has advantages, but it got my name and address wrong. If I did it over again I would ask the AI to read back my name, address and phone number.

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Amazing Service, Very Helpful

Nick did an amazing job with explaining everything and what our nexts steps should be. Also helped walk through what he was doing.

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excellent service, prompt and efficient

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Excellant service!!!

Very professional and knowledgable. Thank you for fixing the problem with the outlet!

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Excellent

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Excellent Service!

Professional and knowledgeable

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Electrical service

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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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Job Locations

Nicholas T.

Nicholas T. Job Checkin

Replacement of overhead service cable and electrical permit.

Replacement of overhead service cable and electrical permit. Replacement of overhead service cable and electrical permit.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the basement work. Membership acquired.

We have delivered pricing regarding the basement work. Membership acquired. We have delivered pricing regarding the basement work. Membership acquired.

Nicholas T.

Nicholas T. Job Checkin

Installation of a new 15 amp arc fault breaker.

Installation of a new 15 amp arc fault breaker. Installation of a new 15 amp arc fault breaker.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the bath fan installations and estimates for panel replacements. Membership acquired

We have delivered pricing regarding the bath fan installations and estimates for panel replacements. Membership acquired We have delivered pricing regarding the bath fan installations and estimates for panel replacements. Membership acquired

Michael W.

Michael W. Job Checkin

We have determined that the receptacle is controlled by a switch. We recommend having all 2 prong ungrounded receptacles replaced.

We have determined that the receptacle is controlled by a switch. We recommend having all 2 prong ungrounded receptacles replaced. We have determined that the receptacle is controlled by a switch. We recommend having all 2 prong ungrounded receptacles replaced.

Nicholas T.

Nicholas T. Job Checkin

Installation of 4 new led wafer lights in the living room on a dimmer switch at the front door Installation of 4 new led recessed lights in the primary bedroom on a dimmer switch at entrance to the room. Convert single switch to 2gang in primary bedroom We also have included a separate quote for the basement. We will remove pull chain fixtures in unfinished area Install 3 new receptacles in ceiling with a switch at entrance. Mount 3 customer supplied plug in shop lights Metalux 46inch 128 watt equivalent Home Depot SKU 1007526373

Installation of 4 new led wafer lights in the living room on a dimmer switch at the front door
Installation of 4 new led recessed lights in the primary bedroom on a dimmer switch at entrance to the room.
Convert single switch to 2gang in primary bedroom

We also have included a separate quote for the basement. We will remove pull chain fixtures in unfinished area 
Install 3 new receptacles in ceiling with a switch at entrance.
Mount 3 customer supplied plug in shop lights

Metalux 46inch 128 watt equivalent
Home Depot SKU 1007526373 Installation of 4 new led wafer lights in the living room on a dimmer switch at the front door
Installation of 4 new led recessed lights in the primary bedroom on a dimmer switch at entrance to the room.
Convert single switch to 2gang in primary bedroom

We also have included a separate quote for the basement. We will remove pull chain fixtures in unfinished area 
Install 3 new receptacles in ceiling with a switch at entrance.
Mount 3 customer supplied plug in shop lights

Metalux 46inch 128 watt equivalent
Home Depot SKU 1007526373

Michael W.

Michael W. Job Checkin

This solution includes the installation of surge protection panels We have installed surge protection at the panels.

This solution includes the installation of surge protection panels 

We have installed surge protection at the panels. This solution includes the installation of surge protection panels 

We have installed surge protection at the panels.

Michael W.

Michael W. Job Checkin

This solution includes the wiring repair for the gfci receptacle in kitchen. We have corrected the wiring at the gfci in the kitchen.

This solution includes the wiring repair for the gfci receptacle in kitchen.
We have corrected the wiring at the gfci in the kitchen. This solution includes the wiring repair for the gfci receptacle in kitchen.
We have corrected the wiring at the gfci in the kitchen.

Nicholas T.

Nicholas T. Job Checkin

Installation of a big vortex surge protector

Installation of a big vortex surge protector Installation of a big vortex surge protector

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the bathroom renovation.

We have delivered pricing regarding the bathroom renovation. We have delivered pricing regarding the bathroom renovation.

Michael W.

Michael W. Job Checkin

This solution includes the installation of 2 dedicated circuits, one for sump pump and the other at main panel. Both circuits shall be 120V 20A and include gfci/arc fault protection. We shall also replace 4 receptacles in upstairs bedrooms, replace 2 light fixtures at second floor landing, replace the lower level bathroom with a new customer supplied bathfan and install a new customer supplied ceiling fan in the master bedroom. In addition we shall update the homes grounding and bonding, replace the existing sub panel and backerboard, ensuring it has a true 100A feed. We have taken deposit and shall return the 23rd of January, membership acquired. We have installed the ceiling fan, replaced the fixtures and installed the gfci receptacles upstairs. Additionally we have replaced the sub panel, roughed in both basement circuits and nearly completed the grounding and bonding. We shall return next Friday to complete the installation. We have completed the installation of the bath fan and

This solution includes the installation of 2 dedicated circuits, one for sump pump and the other at main panel. Both circuits shall be 120V 20A and include gfci/arc fault protection. We shall also replace 4 receptacles in upstairs bedrooms, replace 2 light fixtures at second floor landing, replace the lower level bathroom with a new customer supplied bathfan and install a new customer supplied ceiling fan in the master bedroom.
In addition we shall update the homes grounding and bonding, replace the existing sub panel and backerboard, ensuring it has a true 100A feed.

We have taken deposit and shall return the 23rd of January, membership acquired.

We have installed the ceiling fan, replaced the fixtures and installed the gfci receptacles upstairs. Additionally we have replaced the sub panel, roughed in both basement circuits and nearly completed the grounding and bonding. We shall return next Friday to complete the installation.
We have completed the installation of the bath fan and This solution includes the installation of 2 dedicated circuits, one for sump pump and the other at main panel. Both circuits shall be 120V 20A and include gfci/arc fault protection. We shall also replace 4 receptacles in upstairs bedrooms, replace 2 light fixtures at second floor landing, replace the lower level bathroom with a new customer supplied bathfan and install a new customer supplied ceiling fan in the master bedroom.
In addition we shall update the homes grounding and bonding, replace the existing sub panel and backerboard, ensuring it has a true 100A feed.

We have taken deposit and shall return the 23rd of January, membership acquired.

We have installed the ceiling fan, replaced the fixtures and installed the gfci receptacles upstairs. Additionally we have replaced the sub panel, roughed in both basement circuits and nearly completed the grounding and bonding. We shall return next Friday to complete the installation.
We have completed the installation of the bath fan and

Nicholas T.

Nicholas T. Job Checkin

Install eight, 6 inch recess lights in living/dining room. Convert switch controlled receptacle to constant power. Install 2 Caseta smart switch in current switching location. Install 2 Caseta Pico remote by other doorway. Each switch would control lighting to half of the room. Called out today to give solutions for recess lights in living/dining room area. Walls and ceilings are plaster, requiring additional labor. We will install eight, 6 inch recess lights with 2 Caseta smart switches; each switch will control 4 lights. One receptacle will be converted to constant power and a 2 gang switch box will be cut in for the 2 smart switches. Will return January 29th, at 9am with a senior technician to complete work. Collected a 10 percent deposit. Returned today to complete WPQ. Measured and cut eight holes for recess lights, equidistant from each other. We ran 14/2 between each light, and two switch legs for each set of lights. We cut in a new 2 gang switch box for two smart switches. W

Install eight, 6 inch recess lights in living/dining room. Convert switch controlled receptacle to constant power. Install 2 Caseta smart switch in current switching location. Install 2 Caseta Pico remote by other doorway. Each switch would control lighting to half of the room.

Called out today to give solutions for recess lights in living/dining room area. Walls and ceilings are plaster, requiring additional labor. We will install eight, 6 inch recess lights with 2 Caseta smart switches; each switch will control 4 lights. One receptacle will be converted to constant power and a 2 gang switch box will be cut in for the 2 smart switches. Will return January 29th, at 9am with a senior technician to complete work.

Collected a 10 percent deposit.

Returned today to complete WPQ. Measured and cut eight holes for recess lights, equidistant from each other. We ran 14/2 between each light, and two switch legs for each set of lights. We cut in a new 2 gang switch box for two smart switches. W Install eight, 6 inch recess lights in living/dining room. Convert switch controlled receptacle to constant power. Install 2 Caseta smart switch in current switching location. Install 2 Caseta Pico remote by other doorway. Each switch would control lighting to half of the room.

Called out today to give solutions for recess lights in living/dining room area. Walls and ceilings are plaster, requiring additional labor. We will install eight, 6 inch recess lights with 2 Caseta smart switches; each switch will control 4 lights. One receptacle will be converted to constant power and a 2 gang switch box will be cut in for the 2 smart switches. Will return January 29th, at 9am with a senior technician to complete work.

Collected a 10 percent deposit.

Returned today to complete WPQ. Measured and cut eight holes for recess lights, equidistant from each other. We ran 14/2 between each light, and two switch legs for each set of lights. We cut in a new 2 gang switch box for two smart switches. W

Michael W.

Michael W. Job Checkin

this solution includes the replacement of the existing dual function breaker controlling the dishwasher circuit. We have replaced the breaker for the dishwasher

this solution includes the replacement of the existing dual function breaker controlling the dishwasher circuit.
We have replaced the breaker for the dishwasher this solution includes the replacement of the existing dual function breaker controlling the dishwasher circuit.
We have replaced the breaker for the dishwasher

Nicholas T.

Nicholas T. Job Checkin

For this job we checked circuit to find reason for gfci tripping. While on site gfci was not tripping at all. We were unable to find any issues on the circuit. Issue could be due to garage door opener beginning to fail.

For this job we checked circuit to find reason for gfci tripping. While on site gfci was not tripping at all. We were unable to find any issues on the circuit. Issue could be due to garage door opener beginning to fail. For this job we checked circuit to find reason for gfci tripping. While on site gfci was not tripping at all. We were unable to find any issues on the circuit. Issue could be due to garage door opener beginning to fail.

Michael W.

Michael W. Job Checkin

this solution includes the replacement of the existing ceiling fan in the master bedroom. In addition we shall remove an existing light fixture in the upstairs room and install a new customer supplied ceiling fan. We have installed the new customer supplied ceiling fans in the upstairs.

this solution includes the replacement of the existing ceiling fan in the master bedroom. In addition we shall remove an existing light fixture in the upstairs room and install a new customer supplied ceiling fan.

We have installed the new customer supplied ceiling fans in the upstairs. this solution includes the replacement of the existing ceiling fan in the master bedroom. In addition we shall remove an existing light fixture in the upstairs room and install a new customer supplied ceiling fan.

We have installed the new customer supplied ceiling fans in the upstairs.