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Find Subcontractors in Gaithersburg

Avatar for C H Tel. & TV Co., Inc.

C H Tel. & TV Co., Inc.

4.93(
366
)
Approved Pro

C H Tel. & TV Co., Inc.

4.93(
366
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
1980 years of experience

For over 40 years, our goal has been to ensure the complete satisfaction of every customer, while offering knowledgeable and friendly service at affordable rates. Established in 1980, we have gained the experience of being able to provide nearly any type of telephone service, T.V. mounting and attic antenna installation that you require. We are equipped to handle all of your low voltage cabling needs be it voice, data, TV, fiber, or ethernet. Our goal is to stay in touch with any changes in our industry, so that we can always offer you the latest and most current information and services. Our mission is: To serve our customers with the extensive knowledge and expertise we have gained in our industry, while continually offering them the finest in customer service.

"I had a problem with my old landline phone system. First I called Verizon, but their technician could not solve the problem. Then I contacted CH Tel. Charlie called back promptly and sent a technician, Rick, the same day. Rick was very knowledgeable and thorough. He was able to find the problem and install a new line. While he was here he also solved some long-standing problems I had with loose wires and an open phone box. He was also very respectful of my property and did a good job cleaning up after the work. I would highly recommend this company for low-voltage wiring projects."

Christine K on November 2025

For over 40 years, our goal has been to ensure the complete satisfaction of every customer, while offering knowledgeable and friendly service at affordable rates. Established in 1980, we have gained the experience of being able to provide nearly any type of telephone service, T.V. mounting and attic antenna installation that you require. We are equipped to handle all of your low voltage cabling needs be it voice, data, TV, fiber, or ethernet. Our goal is to stay in touch with any changes in our industry, so that we can always offer you the latest and most current information and services. Our mission is: To serve our customers with the extensive knowledge and expertise we have gained in our industry, while continually offering them the finest in customer service.

"I had a problem with my old landline phone system. First I called Verizon, but their technician could not solve the problem. Then I contacted CH Tel. Charlie called back promptly and sent a technician, Rick, the same day. Rick was very knowledgeable and thorough. He was able to find the problem and install a new line. While he was here he also solved some long-standing problems I had with loose wires and an open phone box. He was also very respectful of my property and did a good job cleaning up after the work. I would highly recommend this company for low-voltage wiring projects."

Christine K on November 2025


"I couldn't have asked for a better experience. They were hired to replace the main electrical panel/breakers at my elderly mother's home. Roni, the electrician, was a wonderful communicator, and was very knowledgeable and thorough in completing the job and in putting her at ease. The price was very reasonable. I will be using Nasr Electric in my own home, as well as recommending them to all my friends and family in the DMV area."

Katherine G on August 2025

Family Owned and Operated. Please call us and you'll be able to talk to our master electrician. To fix any electrical issue at your home or business, you will need a trusted good quality electricians

"I couldn't have asked for a better experience. They were hired to replace the main electrical panel/breakers at my elderly mother's home. Roni, the electrician, was a wonderful communicator, and was very knowledgeable and thorough in completing the job and in putting her at ease. The price was very reasonable. I will be using Nasr Electric in my own home, as well as recommending them to all my friends and family in the DMV area."

Katherine G on August 2025


Long Electric, LLC

4.96(
128
)
Approved Pro

Long Electric, LLC

4.96(
128
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
2010 years of experience

I am Jason Long, founder and master electrician of Long Electric, LLC. I started my electrical career at age 17, and have moved full force to obtain my Master Electrical License amongst many other specialty licenses in the Frederick, and Montgomery Counties. Long Electric, LLC, is proud to note that they have participated in custom building and remodeling awards from the National Association of the Remodeling Industry and custom builder awards, and continues to work closely with many of the renowned high end general contractors in the area. Long Electric, LLC, prides ourselves on customer satisfaction, shown forth by a majority word of mouth and referral based clientele. Therefore, your electrician will not rest until you do!

"The crew did great work and explained everything . "

Chris E on September 2025

I am Jason Long, founder and master electrician of Long Electric, LLC. I started my electrical career at age 17, and have moved full force to obtain my Master Electrical License amongst many other specialty licenses in the Frederick, and Montgomery Counties. Long Electric, LLC, is proud to note that they have participated in custom building and remodeling awards from the National Association of the Remodeling Industry and custom builder awards, and continues to work closely with many of the renowned high end general contractors in the area. Long Electric, LLC, prides ourselves on customer satisfaction, shown forth by a majority word of mouth and referral based clientele. Therefore, your electrician will not rest until you do!

"The crew did great work and explained everything . "

Chris E on September 2025


Avatar for Absolute Electric LLC

Absolute Electric LLC

4.90(
815
)
Approved Pro

Absolute Electric LLC

4.90(
815
)
Approved Pro
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
2006 years of experience

I am passionate about and take pride in my craft. Our philosophy is to treat your home or place of business as if it were our own. If you are not satisfied with our service, please contact me or our Service Manager, Rob, because our goal is your satisfaction. We want you as a customer for life, not just to make a quick buck. Call us today at 571.525.2823, as we look forward to discussing your electrical needs. Regards, Shauwn Collins, Owner

"Excellent and professional service. I would highly recommend Absolute Electric."

Brenda L on October 2025

I am passionate about and take pride in my craft. Our philosophy is to treat your home or place of business as if it were our own. If you are not satisfied with our service, please contact me or our Service Manager, Rob, because our goal is your satisfaction. We want you as a customer for life, not just to make a quick buck. Call us today at 571.525.2823, as we look forward to discussing your electrical needs. Regards, Shauwn Collins, Owner

"Excellent and professional service. I would highly recommend Absolute Electric."

Brenda L on October 2025


Avatar for West Shore Home Baltimore

West Shore Home Baltimore

4.94(
364
)
Approved Pro

West Shore Home Baltimore

4.94(
364
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
2006 years of experience

To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.

"Excellent customer service. Excellent finished product. West Shore Home came to install a shower in one bathroom and bathtub/shower in another bathroom. Their customer service is top tier! They took extra caution to ensure they didn’t damage or disrupt my home or other furniture as they carried their equipment in and out of the house. They encouraged me to see the progress as they worked. (Nothing to hide is always a good thing.) When I expressed surprise and disappointment with one aspect of the design, they immediately began solutioning the issue."

Isiah T on January 2025

To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.

"Excellent customer service. Excellent finished product. West Shore Home came to install a shower in one bathroom and bathtub/shower in another bathroom. Their customer service is top tier! They took extra caution to ensure they didn’t damage or disrupt my home or other furniture as they carried their equipment in and out of the house. They encouraged me to see the progress as they worked. (Nothing to hide is always a good thing.) When I expressed surprise and disappointment with one aspect of the design, they immediately began solutioning the issue."

Isiah T on January 2025


Avatar for Premium Drainage & Erosion Solutions

Premium Drainage & Erosion Solutions

4.99(
70
)
Approved Pro

Premium Drainage & Erosion Solutions

4.99(
70
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
Warranties offered

If you're looking for honesty and quality workmanship, you've come to the right place. Our specialty is drainage and landscaping, but whether a property needs storm drains, french drains, sump pumps, grading, leveling, excavation, patios, creative guttering for water removal or landscaping, we do all of the above with guaranteed results! Get in touch today for a consultation, and help us help you come up with the perfect drainage solution for your home or business!

"We are very satisfied with the work Premium Drainage & Erosion Solutions LLC have done to our property and house. Over the past four years they have done three major projects for use. The first was replacing our rotting retaining wall and putting in a french drain system for the north side of the house which solved the water problem we had that had rotted the old retaining wall. They also replaced our old privacy fence with a new one. The last project that Adrian has done for us this summer was to fix our roof. Half the wood on the roof had to be replaced and when that was done new shingles were put on the whole house. It has been a pleasure working with Adrian and his crew. We have already been talking with Adrian about an upcoming project for next summer."

Ray D on November 2025

If you're looking for honesty and quality workmanship, you've come to the right place. Our specialty is drainage and landscaping, but whether a property needs storm drains, french drains, sump pumps, grading, leveling, excavation, patios, creative guttering for water removal or landscaping, we do all of the above with guaranteed results! Get in touch today for a consultation, and help us help you come up with the perfect drainage solution for your home or business!

"We are very satisfied with the work Premium Drainage & Erosion Solutions LLC have done to our property and house. Over the past four years they have done three major projects for use. The first was replacing our rotting retaining wall and putting in a french drain system for the north side of the house which solved the water problem we had that had rotted the old retaining wall. They also replaced our old privacy fence with a new one. The last project that Adrian has done for us this summer was to fix our roof. Half the wood on the roof had to be replaced and when that was done new shingles were put on the whole house. It has been a pleasure working with Adrian and his crew. We have already been talking with Adrian about an upcoming project for next summer."

Ray D on November 2025


Suma Plumbing and Drain Cleaning, LLC

4.89(
590
)
Approved Pro

Suma Plumbing and Drain Cleaning, LLC

4.89(
590
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
2003 years of experience

Finding the right plumbing company can be a struggle sometimes. Suma Plumbing and Drain Cleaning offers quick, reliable service you can trust. We are dedicated to helping you when you need it the most and we leave all of our jobs tidy and clean.

"The technician was lovely. I was so stressed about this issue and how long it would take and when it would get done. Lian was prompt, arrived earlier than expected, and got right to work. He explained everything and reassured me about the issue. Got everything done the same day within a couple of hours tops. Thank you so much for being kind and professional and resolving this issue quickly for me. "

Lessie M on September 2025

Finding the right plumbing company can be a struggle sometimes. Suma Plumbing and Drain Cleaning offers quick, reliable service you can trust. We are dedicated to helping you when you need it the most and we leave all of our jobs tidy and clean.

"The technician was lovely. I was so stressed about this issue and how long it would take and when it would get done. Lian was prompt, arrived earlier than expected, and got right to work. He explained everything and reassured me about the issue. Got everything done the same day within a couple of hours tops. Thank you so much for being kind and professional and resolving this issue quickly for me. "

Lessie M on September 2025


Avatar for Greenleaf Electric, LLC

Greenleaf Electric, LLC

4.95(
108
)
Approved Pro

Greenleaf Electric, LLC

4.95(
108
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
2010 years of experience

We offer over 20 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation of wiring for additions and remodels. We also specialize in home standby generator installations, panel upgrades, recessed lighting, smart lighting, Voice/Data/Access Control/CCTV, and much much more. We take pride in our quality of work and our commitment to outstanding results. We are committed to providing personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"I hired Greenleaf to install a Chargepoint EV charger in my garage. Gil did a great job all the way from the initial communication through the install and follow-up. His work was of excellent quality and his prices were fair and reasonable. I'll definitely hire Greenleaf next time I need any electrical work done."

Andy R on November 2025

We offer over 20 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation of wiring for additions and remodels. We also specialize in home standby generator installations, panel upgrades, recessed lighting, smart lighting, Voice/Data/Access Control/CCTV, and much much more. We take pride in our quality of work and our commitment to outstanding results. We are committed to providing personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"I hired Greenleaf to install a Chargepoint EV charger in my garage. Gil did a great job all the way from the initial communication through the install and follow-up. His work was of excellent quality and his prices were fair and reasonable. I'll definitely hire Greenleaf next time I need any electrical work done."

Andy R on November 2025


Drain Pro Services

4.95(
205
)
Approved Pro

Drain Pro Services

4.95(
205
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
1995 years of experience

Drain Pro Services is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Patrick was professional from the time I reached out up until his arrival at my home. I explained that the control valve from my sump pump seemed to be malfunctioning over the phone, and within a couple of minutes of being on site and verifying the issue, he got to work. About an hour later, he had the part replaced and my sump pump functioning normally and much more quieter than it had been prior. He even cleaned out the basin the pump was sitting in and disposed of the yard debris that crept in. The homeowner and plumbing wisdom that he bestowed on our household was elite as well. Patrick is "our guy"! Thanks Patrick!"

Chris R on August 2024

Drain Pro Services is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Patrick was professional from the time I reached out up until his arrival at my home. I explained that the control valve from my sump pump seemed to be malfunctioning over the phone, and within a couple of minutes of being on site and verifying the issue, he got to work. About an hour later, he had the part replaced and my sump pump functioning normally and much more quieter than it had been prior. He even cleaned out the basin the pump was sitting in and disposed of the yard debris that crept in. The homeowner and plumbing wisdom that he bestowed on our household was elite as well. Patrick is "our guy"! Thanks Patrick!"

Chris R on August 2024


Avatar for Modern Security & Technology Solutions, LLC

Modern Security & Technology Solutions, LLC

4.97(
68
)
Approved Pro

Modern Security & Technology Solutions, LLC

4.97(
68
)
Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
2017 years of experience

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion we work with you until the job is done. We thrive to take care of all of our clients unique needs. We are ethical, honest and easy to communicate with. Call us today you'll be pleased you did. Thank you!

"The team came in and started to work immediately. Very professional. I will use them again for my next project."

Bobby B on June 2024

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion we work with you until the job is done. We thrive to take care of all of our clients unique needs. We are ethical, honest and easy to communicate with. Call us today you'll be pleased you did. Thank you!

"The team came in and started to work immediately. Very professional. I will use them again for my next project."

Bobby B on June 2024

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Subcontractors questions, answered by experts

Yes, most general contractors require a down payment for project completion. A reasonable down payment for a contractor is 10% to 25% of the total project cost, though that will vary based on project size and location. The down payment helps cover the upfront costs of materials and permits and helps ensure payment for the project at hand. 

Depending on your structure, you may not need planning permission. Major excavation, anything that changes the external appearance of your home, or any construction that will affect your neighbors will need planning permission. However, no planning permission is required if you’re just converting an existing space into a root cellar.

Structural engineers are necessary for projects involving alterations to load-bearing structures, foundation work, and compliance with safety standards. This includes home expansions, retaining walls, and significant repairs that impact a property's integrity.

There are several different steps in the pole barn building process. First, you’ll need construction plans, which you’ll use to obtain permits. Then, you can clear the land so it’s suitable for building and installing the foundation. Your contractor will frame the barn using large poles, then rough in the plumbing and electricity (if your barn has those elements) before finishing the interior, adding siding, and installing the roof. 

After that, they’ll finish up the electrical work and plumbing and add your windows and doors. You may have a few other finishing jobs to do like painting or waterproofing.

Whether it's better to buy or build a chicken coop depends on your priorities. Do you want to save money? If so, then you should build your own chicken coop because it will cost much less—about half—than buying a chicken coop. If you want a perfectly constructed coop with all the bells and whistles without sacrificing your time and energy, it's better (or at least easier) to buy one.

The Gaithersburg, MD homeowners’ guide to subcontracting services

From average costs to expert advice, get all the answers you need to get your job done.

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"