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 63 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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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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Job Locations
for ellicott city, md

Nicholas T.

Nicholas T. Job Checkin

Help customer replace lightbulb and hood fan


Nicholas T.

Nicholas T. Job Checkin

Replace GE Slimline Panel with QO 40 space panel. Install brand new QO breakers correctly sized for circuits and to account for any multiwire branch circuits. Update the grounding system with installation of 8 foot ground rods outside the home, run a bonding wire to the main water shutoff, and bond the water heater with a #4 ground wire between the hot & cold pipes. Install an emergency disconnect in accordance with county safety standards. Install a PSP Vortexx surge with a lifetime warranty and $100,000 of combined protection to meet county safety standards. Haas and Sons will coordinate with county inspectors and BGE throughout the entire process. Replace all switches, plugs, and other devices within the home with the proper terminations. Install GFCI protection where required throughout home.


Replace GE Slimline Panel with QO 40 space panel. Install brand new QO breakers correctly sized for circuits and to account for any multiwire branch circuits. Update the grounding system with installation of 8 foot ground rods outside the home, run a bonding wire to the main water shutoff, and bond the water heater with a #4 ground wire between the hot & cold pipes. Install an emergency disconnect in accordance with county safety standards. Install a PSP Vortexx surge with a lifetime warranty and $100,000 of combined protection to meet county safety standards. Haas and Sons will coordinate with county inspectors and BGE throughout the entire process. 

Replace all switches, plugs, and other devices within the home with the proper terminations. Install GFCI protection where required throughout home. 
Replace GE Slimline Panel with QO 40 space panel. Install brand new QO breakers correctly sized for circuits and to account for any multiwire branch circuits. Update the grounding system with installation of 8 foot ground rods outside the home, run a bonding wire to the main water shutoff, and bond the water heater with a #4 ground wire between the hot & cold pipes. Install an emergency disconnect in accordance with county safety standards. Install a PSP Vortexx surge with a lifetime warranty and $100,000 of combined protection to meet county safety standards. Haas and Sons will coordinate with county inspectors and BGE throughout the entire process. 

Replace all switches, plugs, and other devices within the home with the proper terminations. Install GFCI protection where required throughout home.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the hot tub circuit and panel replacement.

We have delivered pricing regarding the hot tub circuit and panel replacement. We have delivered pricing regarding the hot tub circuit and panel replacement.

Michael W.

Michael W. Job Checkin

This solution includes the installation of a customer supplied fixture in kitchen area, new fixture to be relocated by 16inches. Additionally we shall replace the existing dining area light with a new customer supplied fixture and install the customer supplied ceiling fan in living room. The existing recess lights over kitchen island shall also be replaced and converted to the customer supplied pendant lights, 2 total. This also shall include the replacement of the existing basement fixture with a new customer supplied fixture.

This solution includes the installation of a customer supplied fixture in kitchen area, new fixture to be relocated by 16inches. Additionally we shall replace the existing dining area light with a new customer supplied fixture and install the customer supplied ceiling fan in living room. The existing recess lights over kitchen island shall also be replaced and converted to the customer supplied pendant lights, 2 total. This also shall include the replacement of the existing basement fixture with a new customer supplied fixture. This solution includes the installation of a customer supplied fixture in kitchen area, new fixture to be relocated by 16inches. Additionally we shall replace the existing dining area light with a new customer supplied fixture and install the customer supplied ceiling fan in living room. The existing recess lights over kitchen island shall also be replaced and converted to the customer supplied pendant lights, 2 total. This also shall include the replacement of the existing basement fixture with a new customer supplied fixture.

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.

Nicholas T.

Nicholas T. Job Checkin

The reason for today’s visit was to assess multiple issues in the home. First issue was the fact that the washer will trip occasionally when multiple things are on on the top floor. We found that the issue is that the washer is on with the lighting circuit that is also with the master bathroom hallway, bathroom back bedroom as well as the laundry lights. Remedy this we will need to run a dedicated circuit from the main panel up to the washer to separate it from the lighting circuit. The next issue was flickering lights that are happening on the second floor, which we found a lot of the devices in the home are the original backstabbed ivory devices from the late 80s. We recommended device in the entire home in which customer agreed due to the fact that they wanted them done for cosmetic reasons as well. Finally, after inspecting the main panel, we found that there has been multiple hands inside this panel over the years and we’re noticing some of the breakers flipping on and off felt ex

The reason for today’s visit was to assess multiple issues in the home. First issue was the fact that the washer will trip occasionally when multiple things are on on the top floor. We found that the issue is that the washer is on with the lighting circuit that is also with the master bathroom hallway, bathroom back bedroom as well as the laundry lights. Remedy this we will need to run a dedicated circuit from the main panel up to the washer to separate it from the lighting circuit. The next issue was flickering lights that are happening on the second floor, which we found a lot of the devices in the home are the original backstabbed ivory devices from the late 80s. We recommended device in the entire home in which customer agreed due to the fact that they wanted them done for cosmetic reasons as well. Finally, after inspecting the main panel, we found that there has been multiple hands inside this panel over the years and we’re noticing some of the breakers flipping on and off felt ex The reason for today’s visit was to assess multiple issues in the home. First issue was the fact that the washer will trip occasionally when multiple things are on on the top floor. We found that the issue is that the washer is on with the lighting circuit that is also with the master bathroom hallway, bathroom back bedroom as well as the laundry lights. Remedy this we will need to run a dedicated circuit from the main panel up to the washer to separate it from the lighting circuit. The next issue was flickering lights that are happening on the second floor, which we found a lot of the devices in the home are the original backstabbed ivory devices from the late 80s. We recommended device in the entire home in which customer agreed due to the fact that they wanted them done for cosmetic reasons as well. Finally, after inspecting the main panel, we found that there has been multiple hands inside this panel over the years and we’re noticing some of the breakers flipping on and off felt ex

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

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 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.

Michael W.

Michael W. Job Checkin

This solution includes the replacement switch for the rear exterior lights. In addition we shall repair the wiring at the post lamp and install new customer supplied exterior fixture at music building. We have replaced the exterior fixture at music building, repaired wiring at post lamp and replaced the switch that operates the rear exterior fixtures.

This solution includes the replacement switch for the rear exterior lights. In addition we shall repair the wiring at the post lamp and install new customer supplied exterior fixture at music building.

We have replaced the exterior fixture at music building, repaired wiring at post lamp and replaced the switch that operates the rear exterior fixtures. This solution includes the replacement switch for the rear exterior lights. In addition we shall repair the wiring at the post lamp and install new customer supplied exterior fixture at music building.

We have replaced the exterior fixture at music building, repaired wiring at post lamp and replaced the switch that operates the rear exterior fixtures.

Michael W.

Michael W. Job Checkin

This solution includes the necessary updates to grounding and bonding. We have updated the grounding and bonding. We have scheduled inspection for December 2nd.

This solution includes the necessary updates to grounding and bonding.

We have updated the grounding and bonding. We have scheduled inspection for December 2nd. This solution includes the necessary updates to grounding and bonding.

We have updated the grounding and bonding. We have scheduled inspection for December 2nd.

Michael W.

Michael W. Job Checkin

This solution includes the replacement of the existing range receptacle. We have restored power the stove. We replaced the existing breaker and we have cut out damaged portions of wiring at the receptacle and replaced the receptacle. We highly recommend having repairs to the sub panel made. We have left the breaker off that controls the sub panel.

This solution includes the replacement of the existing range receptacle.
We have restored power the stove. We replaced the existing breaker and we have cut out damaged portions of wiring at the receptacle and replaced the receptacle.

We highly recommend having repairs to the sub panel made. We have left the breaker off that controls the sub panel. This solution includes the replacement of the existing range receptacle.
We have restored power the stove. We replaced the existing breaker and we have cut out damaged portions of wiring at the receptacle and replaced the receptacle.

We highly recommend having repairs to the sub panel made. We have left the breaker off that controls the sub panel.

Nicholas T.

Nicholas T. Job Checkin

Provided pricing to install two new dedicated circuits to fix the overloading issue in the family/gaming room on the lower level. We also provided an option with surge protection at the main panel as well as an option to upgrade the main panel as well.

Provided pricing to install two new dedicated circuits to fix the overloading issue in the family/gaming room on the lower level. We also provided an option with surge protection at the main panel as well as an option to upgrade the main panel as well. Provided pricing to install two new dedicated circuits to fix the overloading issue in the family/gaming room on the lower level. We also provided an option with surge protection at the main panel as well as an option to upgrade the main panel as well.

Michael W.

Michael W. Job Checkin

We have delivered pricing regarding the recess lights.

We have delivered pricing regarding the recess lights. We have delivered pricing regarding the recess lights.