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Attic or whole house fan installers in Rockville
We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your next home project. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! Licensed & Bonded Maryland Home Improvement #141947 Maryland Master Electrician #14130 Virginia Master Electrician #2710073038
"Three Brothers is the best. We have hired Saul and team for several electrical projects both big and small over the past few years. They have never disappointed. Highly recommend for any electrical needs."
David G on July 2023
We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your next home project. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! Licensed & Bonded Maryland Home Improvement #141947 Maryland Master Electrician #14130 Virginia Master Electrician #2710073038
"Three Brothers is the best. We have hired Saul and team for several electrical projects both big and small over the past few years. They have never disappointed. Highly recommend for any electrical needs."
David G on July 2023
We specialize in handyman services, home repairs, home improvements, remodeling, painting, flooring, ceiling fan installs, TV mounting, furniture assembly, cleaning, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!
"The repair work was done with care and sincerity. Pleased with the service."
Muhammad M on May 2025
We specialize in handyman services, home repairs, home improvements, remodeling, painting, flooring, ceiling fan installs, TV mounting, furniture assembly, cleaning, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!
"The repair work was done with care and sincerity. Pleased with the service."
Muhammad M on May 2025
Mr. Electric is a global franchise organization that provides electrical installation and repair services for residential and commercial customers. Founded in 1994, Mr. Electric has nearly 200 locations worldwide and is a subsidiary of the Neighborly family of service franchises.
"Swift, professional, and the outlets work safely. All I needed."
ayo a on May 2025
Mr. Electric is a global franchise organization that provides electrical installation and repair services for residential and commercial customers. Founded in 1994, Mr. Electric has nearly 200 locations worldwide and is a subsidiary of the Neighborly family of service franchises.
"Swift, professional, and the outlets work safely. All I needed."
ayo a on May 2025
When you have an electrical or plumbing issue, you want it solved quickly for the safety and comfort of you and your family. Our technicians genuinely care about our customers, which is one of the reasons why we have been a trusted electrical and plumbing services company in the area for the past 20+ years. Our technicians have well stocked trucks and are able to do most repairs the same day. We offer 5-star service, same-day services, upfront pricing, as well as various financing options. Our technicians are highly trained and confident in their skills and ability to handle any electrical and plumbing issue in your home and stand behind all our recommended repairs.
"Don’t use the plumbing! Called to have Kohler toilet tank plunger repaired. Whole installation is $20. Labor is an hour at $80 so the price is $150, at most. No, they charged $450–BS! These guys are a scam. No prices and I told them to have the repair person call me before arriving. No call, no prices. And, then the repair person has the stones to tell me that everyone overcharges!! Let’s start with not using Beacon!!!"
Joseph B on June 2025
When you have an electrical or plumbing issue, you want it solved quickly for the safety and comfort of you and your family. Our technicians genuinely care about our customers, which is one of the reasons why we have been a trusted electrical and plumbing services company in the area for the past 20+ years. Our technicians have well stocked trucks and are able to do most repairs the same day. We offer 5-star service, same-day services, upfront pricing, as well as various financing options. Our technicians are highly trained and confident in their skills and ability to handle any electrical and plumbing issue in your home and stand behind all our recommended repairs.
"Don’t use the plumbing! Called to have Kohler toilet tank plunger repaired. Whole installation is $20. Labor is an hour at $80 so the price is $150, at most. No, they charged $450–BS! These guys are a scam. No prices and I told them to have the repair person call me before arriving. No call, no prices. And, then the repair person has the stones to tell me that everyone overcharges!! Let’s start with not using Beacon!!!"
Joseph B on June 2025
We are a Union trained company, with a Licensed and insured Journeyman Electrician. We have experience since 2014. We are able to troubleshoot and resolve any electrical issues. We specialize in Heavy ups, Generators, New installs, EV chargers, and many more projects. Customer satisfaction tops our priority list. We are Minority owned. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!
"Excellent work! Prompt, quick and attention to detail!"
Mark B on June 2025
We are a Union trained company, with a Licensed and insured Journeyman Electrician. We have experience since 2014. We are able to troubleshoot and resolve any electrical issues. We specialize in Heavy ups, Generators, New installs, EV chargers, and many more projects. Customer satisfaction tops our priority list. We are Minority owned. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!
"Excellent work! Prompt, quick and attention to detail!"
Mark B on June 2025
My name is Lloyd and I am a master electrician. I have been doing electrical work for the past 23 years. Just decided to open my own company. My work entails from electrical service to customs homes
"The job was done, timely, effectively, and efficiently. I am very pleased with Mr. Lloyd’s services. I would highly recommend his services, he took the time to explain in detail what was necessary to complete the project, as a layperson I greatly appreciated his knowledge and expertise."
Apryl J on May 2023
My name is Lloyd and I am a master electrician. I have been doing electrical work for the past 23 years. Just decided to open my own company. My work entails from electrical service to customs homes
"The job was done, timely, effectively, and efficiently. I am very pleased with Mr. Lloyd’s services. I would highly recommend his services, he took the time to explain in detail what was necessary to complete the project, as a layperson I greatly appreciated his knowledge and expertise."
Apryl J on May 2023
The Doctor House, Handyman, we can do almost everything, using good materials, no job is to small if we can't do we have a business partners and we can help you with your Home Improvement or your HONEY DO LIST, also we am do interior and exterior painting, drywall repair and hanging, finishing, roof repair, light electric, and light pluming, deck repair, kitchen, basements, laundry rooms, and much more.
"Carlos was very friendly and knowledgeable. I will use him for a future project."
Liam T on April 2025
The Doctor House, Handyman, we can do almost everything, using good materials, no job is to small if we can't do we have a business partners and we can help you with your Home Improvement or your HONEY DO LIST, also we am do interior and exterior painting, drywall repair and hanging, finishing, roof repair, light electric, and light pluming, deck repair, kitchen, basements, laundry rooms, and much more.
"Carlos was very friendly and knowledgeable. I will use him for a future project."
Liam T on April 2025
JM Handyman LLC. Hello there. I’m Jose. I love to help others fix and accomplish tasks! I’ve got years of experience and guarantee quality work. So whatever your project, I’m ready to help! Contact me now to discuss your list of needs. Also, I will answer any questions you may have about how I work and what to expect with my handyman services. Painting, Drywall and all the project you need I can help
"Extremely professional - left all areas where installs were performed cleaned and better than it originally was. They worked quick doing all the work we requested much faster than we thought! Incredibly satisfied with the results."
Josh M on November 2024
JM Handyman LLC. Hello there. I’m Jose. I love to help others fix and accomplish tasks! I’ve got years of experience and guarantee quality work. So whatever your project, I’m ready to help! Contact me now to discuss your list of needs. Also, I will answer any questions you may have about how I work and what to expect with my handyman services. Painting, Drywall and all the project you need I can help
"Extremely professional - left all areas where installs were performed cleaned and better than it originally was. They worked quick doing all the work we requested much faster than we thought! Incredibly satisfied with the results."
Josh M on November 2024
10 Years Of Experience. Provides Exceptional & Guaranteed Residential Work. Put Clients Needs First Before Anything. www.jaelectricllc.net
"Quick response and completion! Fair price. Thank you!"
Katie J on July 2025
10 Years Of Experience. Provides Exceptional & Guaranteed Residential Work. Put Clients Needs First Before Anything. www.jaelectricllc.net
"Quick response and completion! Fair price. Thank you!"
Katie J on July 2025
JWHI provides world-class customer service with consistent and superior workmanship. We strive to be the trusted market leader in the home improvement industry. Proudly, we are Super Service Award Winner for over a decade, and we plan to keep that streak going! Contact us today to discuss your next handyman or remodeling project. Our mission is to provide you with a happy home improvement experience!
"Fine it was fine"
Jonathan S on April 2025
JWHI provides world-class customer service with consistent and superior workmanship. We strive to be the trusted market leader in the home improvement industry. Proudly, we are Super Service Award Winner for over a decade, and we plan to keep that streak going! Contact us today to discuss your next handyman or remodeling project. Our mission is to provide you with a happy home improvement experience!
"Fine it was fine"
Jonathan S on April 2025
FAQs for attic or whole house fan installation projects in Rockville, MD
A properly installed ridge vent rarely leaks. Sections overlap along the roof’s peak and are secured with fasteners designed to form a watertight seal. When your roofer follows the manufacturer’s instructions and uses compatible materials, rainwater stays outside while warm, humid air escapes. Regular inspections after major storms add extra peace of mind and help your roof last longer.
Divide your attic’s square footage by 150 to find the minimum square footage of ventilation you need. Aim for a 50/50 split—half intake (soffit) and half exhaust (ridge or roof) vents—to keep air moving and moisture in check. A local roofer can confirm the calculation based on your climate and roof pitch.
Roof ventilation moves hot, moist air out of the attic, protecting rafters and decking from mold, rot, and premature wear. Good airflow also eases the load on your air-conditioning system, trimming energy bills and keeping living spaces more comfortable year-round. In short, it safeguards both your roof and your wallet.
A ridge vent should run along the main roof ridge, but doesn’t have to cover every intersecting ridge. What matters is creating a continuous channel at the highest point so warm air can escape evenly. Your roofer will measure the attic space, size the vent accordingly, and stop short of hips or valleys where leaks are more likely. This approach keeps the system efficient and the roof watertight.
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