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

Local Reviews

Rated 4.9 out of 5 stars based on 693 customer reviews

Service was great

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Excellent service!

Great job. Thorough and explained every step of the way and indulged all of my questions.

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Great Job!

Nick Thomas was outstanding. Very professional and polite. Took time to explain what he was doing, and job was completed in a timely manner.

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Great service from Genny

Genny was great. Professional and made me laugh when she identified the problem. This is the company you want for electrical work.

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Electrical Panel.

Great and happy.

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Excellent Service!

Dennis did an outstanding job from the beginning to the end. Customer service was excellent! His knowledge and workmanship was top notch. Thanks again for your outstanding service!

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Top grades!

Thoroughly friendly, competent, and honest.

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Responsive technicians

Listened to and responded to plan. Offered good insight and suggestions.

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Great Service

Nick was very helpful. Very professional & polite. I’m very pleased with the service he provided.

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Great service work performed

As usual the tech was friendly and professional.

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Electric Price Quote

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Outstanding Service

Haas & Sons has performed multiple projects for us now. Each service specialist that has been to my home has listened carefully to what I needed, fully explained options and made sure I knew what to expect. We've been happy with the end result of every job.

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Great Service

Great service, rep was straight forward and honest to me. laid out my options great warranty by the way.

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Great Service!!

I'm never disappointed with the quality of the service. Great company for your electrical needs.

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Well done. Will ask again.

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Job Locations

Michael W.

Michael W. Job Checkin

This solution includes the installation of 3 gfci receptacles where ungrounded receptacles exist. In addition we shall repair the reverse polarity receptacle in the side room leading to basement. We have corrected open ground and reverse polarity issues, locations in upstairs bedroom, first floor living area and basement family room.


Alex W.

Alex W. Job Checkin

Originally came out to the house to discover a power outage in the downstairs bedroom When I went to inspect the panel as soon as I took the cover off the panel I smelled a burning odor coming from the main electrical panel I brought this to the customers attention and she agreed that we should change out the panel to make it safe I redevice the downstairs bedroom also fishing the new line in from the bathroom GFCI into the outlet on the opposite side of the wall because the wire size was not correct Today I removed the existing 200 amp electrical panel and I installed a new 42 space main breaker 200 amp electrical panel I remove the SEU cable and installed a new 200 amp SEU cable I also installed a whole home surge protector to protect the home electronics and the home utilities from potential power surges I installed all brand new standard electrical breakers properly Fused Then I labeled the electrical panel. I Installed 2 8 foot ground rod 6 feet apart then ran a number four gr


Genny G.

Genny G. Job Checkin

Installed (2) motion sensor lights in garage supplied by Haas and Sons. Only (1) light was existing. Ran jumper to second light. Let us know if you need anything else.


Michael W.

Michael W. Job Checkin

This solution includes the replacement to the breakers not currently working. We have replaced the 2 existing breakers not working. One controlling the fridge and countertop receptacles and the second controlling the microwave and living room. We recommend having a dedicated circuit for the microwave and a replacement of the main panel.


Nicholas T.

Nicholas T. Job Checkin

Run three new dedicated circuits into the unfinished closet in the basement bathroom. We will install two new receptacles one for the water heater as well as one for the sump pump. The third circuit will be ran to a junction box to feed the basement bathroom lights.


Michael W.

Michael W. Job Checkin

We have relocated the existing microwave circuit breaker on another phase. When opening the door at end of microwave cooking cycle power to the microwave was cut off, however breaker never tripped. Plug was removed from receptacle and then reinserted. This restored power again to the microwave. We recommend having a qualified appliance technician look at the microwave to see if this is serviceable.


dennis@haasandsons.com

dennis@haasandsons.com Job Checkin

Installation of new 200 amp Square D QO panel 42 slot to replace old and dated panel with multiple safety violations such as double taps. With new panel installation, updating current grounding and bonding throughout home by installing new ground rods along with new grounding wire to main panel.


Nicholas T.

Nicholas T. Job Checkin

We will remove and replace customer supplied light in the foyer. We will supply and install two new LED lights in the second floor hallway, as well as the second floor stairwell. We will remove the original 1970s federal Pacific stab lock panel and install a new 200 amp panel in its place. We will install all new matching breakers and bring grounding system up to today’s safety and code standards. We will pull an electrical permit and coordinate county inspections. We will install whole, Home surge protection in the main panel to protect homes electrical system from harmful voltage spikes.


Alex W.

Alex W. Job Checkin

When I originally came out to check a power outage in the office I noticed that the receptacles were backstabbed when I went down to check the electrical panel and the breaker they kept tripping when I took the panel cover off I noticed that there was a 150 amp SEU cable powering a 200 amp electrical panel after making my discoveries I presented the options to the customer and he decided to move forward with the upgrade option So I installed a 200 amp SEU cable with a new weatherhead going down customers wall outside which will be connected to the powerlines from Pepco I installed a new meter can. I removed the 150 amp SEU cable from the electrical panel and pulled it outside thenI installed a new 200 amp SEU cable from the meter can into the electrical panel. After that I temporally bugged the old SEU cable and the new SEU cable together to power the customers homes Pepco will make the final connections into the meter can after we pass inspection. When doing this we have to bring e


Alex W.

Alex W. Job Checkin

I removed a damaged and rusted light outside on the back porch and i installed a customer supplied light fixture. I then siliconed around the light to the siding block to help prevent water from getting in the light fixture to prolong the life of the unit. I bypassed a photo cell in the post light out front and now the fixture is working off the light switch by the front door. Before the light was inconsistent with its ability to come on and off due to a failing photo cell I removed all double tapped neutrals and over tapped grounds on the neutral bar and put the neutrals on their own separate screw. I installed a ground bar to help free up spaces in the panel. This is to help prevent the neutrals from overheating on the neutral bar. I installed a whole home surge protector in the panel. I then powered it by installed a 2 pole 50 amp square d qo electrical breaker then labeled the panel. This surge protector is to help protect the homes electronics and homes utilities from potenti


dennis@haasandsons.com

dennis@haasandsons.com Job Checkin

Installation of new dedicated 20 amp circuit for the outdoor plug and lighting. Switch will be located at the back door in basement for Casetta w/ pico remote then located at the top of stairs to control flood light and coach light above basement door. New circuit will also include a constant hot outlet w/ in use bubble cover for future string light installation done by customer. Removing old front yard post lamp and installing new post with foam insulation bag and then reinstalling current wiring to then power the lamp.


Genny G.

Genny G. Job Checkin

Today’s visit was for doorbell not working. Customer’s home is in excellent condition electrically apart from doorbell not working. I tested continuity and voltage at doorbell, chime, and transformer. Wiring was in good order, determined kit needs to be replaced. Please see attached solution to get this resolved for you. Let us know if you have any other questions. Thank you!


Michael W.

Michael W. Job Checkin

We have determined that the home has had the proper aluminum to copper connections installed. The home has had all receptacles, switches, light fixtures and 120V appliances that were originally fed with aluminum conductors remedied with CopAlum connections. In addition we shall return March 14th to install the new panel, complete with surge protection and arc-fault breakers for all 120V circuits. We have completed the new panel installation. Surge protection and arc fault breakers have been installed. We shall schedule for inspection.


Alex W.

Alex W. Job Checkin

I removed and replaced three carbon monoxide smoke detector combos with Company supplied hardwired 10 year lithium battery interconnected carbon monoxide smoke detector combo units due to the fact the previous units would randomly go off causing the customer much headache especially in the middle of the night Customer had a broken switch that controls the garbage disposal that was in a three gang box the existing switches were ivory so I recommended to replace all switches with new white switches any brand new white three gang switch plate and the customer decided to move forward with this option I removed and replaced the GFCI outside underneath the back deck with a weather resistant tamper resistant GFCI a new in use bubble cover due to the previous GFCI was not rated to be outside and it was damaged


Genny G.

Genny G. Job Checkin

Today’s visit was for power loss in bedroom. All of the devices and lights were not working in the first floor bedroom. The devices were original to the home in 1987. They were also backstabbed which the heat/friction of the electrical load running through the circuit causes the wire to loosen over time. The receptacle in the upstairs bedroom was also on that circuit and as soon as I pulled it out the wire came out of the device. All of the devices in the home should be replaced as this will continue to happen from every day wear and tear. Today’s work was we replaced all devices on broken circuit. Please see attached solution to get the rest of your home safe.