Molecular Systems, Inc. is a construction firm which provides a modern approach in producing efficient strategies to servicing our clients' needs. From business owners, to government agencies, we provide the following services; Roofing, Waterproofing and a regional supplier of Construction Supplies.
Molecular Systems, Inc. is a construction firm which provides a modern approach in producing efficient strategies to servicing our clients' needs. From business owners, to government agencies, we provide the following services; Roofing, Waterproofing and a regional supplier of Construction Supplies.
Keith Roofing has been serving residential, commercial, and industrial customers since 1960. We've built our reputation on providing a high-quality finished product that will last for years! Count on our team for honesty and integrity when it comes to serving the needs of home and business owners in the DC area. Because each roof provides different challenges, such as the pitch of the roof, type of shingles, the gutter system, and number of valleys, Keith Roofing offers thorough on-site inspections and true estimates of your roofing repair needs. WE are based in and only service Washington,DC- SO we specialize on working on these Beautiful Historic Homes we have here in the District.
"They couldn't have been more responsive or helpful. Customer satisfaction was clearly their top priority. It was literally some of the best customer service I have ever experienced! I could not recommend them more!"
Brent L on October 2020
Keith Roofing has been serving residential, commercial, and industrial customers since 1960. We've built our reputation on providing a high-quality finished product that will last for years! Count on our team for honesty and integrity when it comes to serving the needs of home and business owners in the DC area. Because each roof provides different challenges, such as the pitch of the roof, type of shingles, the gutter system, and number of valleys, Keith Roofing offers thorough on-site inspections and true estimates of your roofing repair needs. WE are based in and only service Washington,DC- SO we specialize on working on these Beautiful Historic Homes we have here in the District.
"They couldn't have been more responsive or helpful. Customer satisfaction was clearly their top priority. It was literally some of the best customer service I have ever experienced! I could not recommend them more!"
Brent L on October 2020
At The Home Doctor, we go beyond exterior improvements – we protect the health of your home. As a locally owned and operated business, our mission is simple: to provide you, our valued homeowner, with superior products and personalized service. Big Savings: Limited Time Only – 50% OFF Installation TERMS AND CONDITIONS: Offer valid on complete replacement projects of 10+ windows, entire roofs, or all sides of siding. Gutter, door, and attic insulation projects qualify with a minimum job cost of $7,500. Discount applies to 50% off installation costs only, which typically account for 20-30% of the total job cost, resulting in a 10-15% overall project discount. Valid for new contracts only, cannot be combined with other offers. Valid on initial visit only, and has no cash value. Residential projects only; exclusions apply. Deferred payments only valid with this promotion. The Home Doctor reserves the right to modify or cancel this promotion at any time.
"We were looking to increase our attic insulation and met The Home Doctor Company at the Capital Remodel and Garden Show in February 2025 as well as some other companies. We consulted with several companies and decided to go with The Hone Doctor for our attic insulation. The company rep, Chris Lear, was very good explaining what they would do and why our attic needed R-38 insulation. I knew we needed more but did not realize our attic was only R-13. I have worked with numerous contractors before on projects and felt this was a really good company plus they have great reviews. The installation of the attic insulation went very well. They do install siding as well but decided to put this project off for now. Would highly recommend this company."
Beverly B on March 2025
At The Home Doctor, we go beyond exterior improvements – we protect the health of your home. As a locally owned and operated business, our mission is simple: to provide you, our valued homeowner, with superior products and personalized service. Big Savings: Limited Time Only – 50% OFF Installation TERMS AND CONDITIONS: Offer valid on complete replacement projects of 10+ windows, entire roofs, or all sides of siding. Gutter, door, and attic insulation projects qualify with a minimum job cost of $7,500. Discount applies to 50% off installation costs only, which typically account for 20-30% of the total job cost, resulting in a 10-15% overall project discount. Valid for new contracts only, cannot be combined with other offers. Valid on initial visit only, and has no cash value. Residential projects only; exclusions apply. Deferred payments only valid with this promotion. The Home Doctor reserves the right to modify or cancel this promotion at any time.
"We were looking to increase our attic insulation and met The Home Doctor Company at the Capital Remodel and Garden Show in February 2025 as well as some other companies. We consulted with several companies and decided to go with The Hone Doctor for our attic insulation. The company rep, Chris Lear, was very good explaining what they would do and why our attic needed R-38 insulation. I knew we needed more but did not realize our attic was only R-13. I have worked with numerous contractors before on projects and felt this was a really good company plus they have great reviews. The installation of the attic insulation went very well. They do install siding as well but decided to put this project off for now. Would highly recommend this company."
Beverly B on March 2025
With over 70 years of experience in home improvement, Long Home Products is the industry-leading company you can trust to give you peace of mind. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of roofing, bathroom, window and door projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
"Extremely disappointed with this company. They do not stand by their guarantees. Did install shower in one day. Was not provided with the shower head I ordered. Calking and trim work was very sloppy. Went through the shower wall into my bedroom, did sparkle wall and left it. Shower doors have leaked and was finally told six months later that there is nothing they can do to correct the issue. Originally quoted $24,000.00 for the walk on shower, eventually agreed to $11,500.00. Completely dissatisfied with my shower. Once they get their payment, they are done."
Kathy B on June 2025
With over 70 years of experience in home improvement, Long Home Products is the industry-leading company you can trust to give you peace of mind. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of roofing, bathroom, window and door projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
"Extremely disappointed with this company. They do not stand by their guarantees. Did install shower in one day. Was not provided with the shower head I ordered. Calking and trim work was very sloppy. Went through the shower wall into my bedroom, did sparkle wall and left it. Shower doors have leaked and was finally told six months later that there is nothing they can do to correct the issue. Originally quoted $24,000.00 for the walk on shower, eventually agreed to $11,500.00. Completely dissatisfied with my shower. Once they get their payment, they are done."
Kathy B on June 2025
Since 1992, Roofing Pups, Roofing & Siding - MD has provided homeowners and business owners with top quality, factory-direct products, professionally installed by licensed, bonded installers with over 25 years of home improvement experience. Our experience sales representative will assist you with the windows and/or doors that suit you best. Roofing Pups Roofing & Siding takes pride in building relationships with not only our consumers but with our manufacturers as well. We have maintained a reputable business relationship with both of our leading manufactures, American Jewel and Home Guard, for 15 years. Being a locally owned and operated company, Roofing Pups is able to provide you with top quality products with a bottom line price! Come see for yourself how Air Tite Windows & Doors, Inc. can make your home look stunning and more energy efficient.
"Great.good job"
linwood c on May 2025
Since 1992, Roofing Pups, Roofing & Siding - MD has provided homeowners and business owners with top quality, factory-direct products, professionally installed by licensed, bonded installers with over 25 years of home improvement experience. Our experience sales representative will assist you with the windows and/or doors that suit you best. Roofing Pups Roofing & Siding takes pride in building relationships with not only our consumers but with our manufacturers as well. We have maintained a reputable business relationship with both of our leading manufactures, American Jewel and Home Guard, for 15 years. Being a locally owned and operated company, Roofing Pups is able to provide you with top quality products with a bottom line price! Come see for yourself how Air Tite Windows & Doors, Inc. can make your home look stunning and more energy efficient.
"Great.good job"
linwood c on May 2025
WHEN IT COMES TO ROOFING, WE HAVE YOU COVERED! OVER 28 YEARS OF EXPERIENCE! We are an award-winning top roofing installer, specializing in full replacement of Asphalt Shingle, Flat Roof, and Standing Seam Metal Roof Systems. With expert installation and high quality materials, we offier Lifetime-limited Warranties AND one of our superivors will be on site for your project from start to finish! We are also a premier dealer and installer for Solatube International, maker of the world-famous Solatube miracle skylight and Solarstar solar-powered attic fan. Solatubes are an affordable way to bring natural light into dark areas of your home - bathrooms, hallways, closets, kitchens – any areas that needs more light. Solatubes cost much less than conventional skylights, save on electric bills, are guaranteed not to leak, come with a 10-year warranty and are eligible for a 30% federal tax credit on parts and labor. Solatube's widely popular Solarstar attic fan literally pays for itself. It costs nothing to operate, installs in one hour, is guaranteed for 10 years and is also eligible for a 30 % federal tax credit. Save money and go Green with our wonderful products and services. We provide exceptional service to our clients and offer them with the best daylighting system in the world, America's number one selling solar attic fan and more. For additional information and to set up estimates and installations give us a call. We specialize in Solatube sales and installation, expert roofing repairs and replacements, and installing exceptional new gutters and gutter guards. Seeing is believing so please visit our beautiful new showroom, where we have a dozen exciting Solatube models on display. Contact us TODAY for your FREE estimate!!
"Fast on site response, expert recommendations, perfectly performed work. HIGHLY Recommended!!!"
Frederick M G on April 2023
WHEN IT COMES TO ROOFING, WE HAVE YOU COVERED! OVER 28 YEARS OF EXPERIENCE! We are an award-winning top roofing installer, specializing in full replacement of Asphalt Shingle, Flat Roof, and Standing Seam Metal Roof Systems. With expert installation and high quality materials, we offier Lifetime-limited Warranties AND one of our superivors will be on site for your project from start to finish! We are also a premier dealer and installer for Solatube International, maker of the world-famous Solatube miracle skylight and Solarstar solar-powered attic fan. Solatubes are an affordable way to bring natural light into dark areas of your home - bathrooms, hallways, closets, kitchens – any areas that needs more light. Solatubes cost much less than conventional skylights, save on electric bills, are guaranteed not to leak, come with a 10-year warranty and are eligible for a 30% federal tax credit on parts and labor. Solatube's widely popular Solarstar attic fan literally pays for itself. It costs nothing to operate, installs in one hour, is guaranteed for 10 years and is also eligible for a 30 % federal tax credit. Save money and go Green with our wonderful products and services. We provide exceptional service to our clients and offer them with the best daylighting system in the world, America's number one selling solar attic fan and more. For additional information and to set up estimates and installations give us a call. We specialize in Solatube sales and installation, expert roofing repairs and replacements, and installing exceptional new gutters and gutter guards. Seeing is believing so please visit our beautiful new showroom, where we have a dozen exciting Solatube models on display. Contact us TODAY for your FREE estimate!!
"Fast on site response, expert recommendations, perfectly performed work. HIGHLY Recommended!!!"
Frederick M G on April 2023
Specializing in new Metal Roofing! We work with local Amish crews to get your job done right. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!
"They were excellent. They were on time. They were always polite."
Tracey B on December 2020
Specializing in new Metal Roofing! We work with local Amish crews to get your job done right. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!
"They were excellent. They were on time. They were always polite."
Tracey B on December 2020
Paramount Builders takes pride in being your local home improvement contractor. Since 1991, we have served our local community by providing the very best products, warranties, installation techniques, service, and most importantly; your experience from start to finish. Our exclusive product lines give us the benefit of being able to extend our top-of-the-line products to you, our neighbors, with certainty and affordability. We hand-picked our exclusive products with you, your family, and your home's aesthetic and longevity in mind. All of our products were created to keep your home energy efficient and protected in every way. Our commitment to excellence does not waiver. We understand what it means to own a home, and we understand as professionals what you and your home deserve. We live each day by our mission statement; "Improving the Community, One Home at a Time," and thank you for continuing to trust us!
"Awesome Amazing job"
Karen H on May 2025
Paramount Builders takes pride in being your local home improvement contractor. Since 1991, we have served our local community by providing the very best products, warranties, installation techniques, service, and most importantly; your experience from start to finish. Our exclusive product lines give us the benefit of being able to extend our top-of-the-line products to you, our neighbors, with certainty and affordability. We hand-picked our exclusive products with you, your family, and your home's aesthetic and longevity in mind. All of our products were created to keep your home energy efficient and protected in every way. Our commitment to excellence does not waiver. We understand what it means to own a home, and we understand as professionals what you and your home deserve. We live each day by our mission statement; "Improving the Community, One Home at a Time," and thank you for continuing to trust us!
"Awesome Amazing job"
Karen H on May 2025
Paramount Builders takes pride in being your local home improvement contractor. Since 1991, we have served our local community by providing the very best products, warranties, installation techniques, service, and most importantly; your experience from start to finish. Our exclusive product lines give us the benefit of being able to extend our top-of-the-line products to you, our neighbors, with certainty and affordability. We hand-picked our exclusive products with you, your family, and your home's aesthetic and longevity in mind. All of our products were created to keep your home energy efficient and protected in every way. Our commitment to excellence does not waiver. We understand what it means to own a home, and we understand as professionals what you and your home deserve. We live each day by our mission statement; "Improving the Community, One Home at a Time," and thank you for continuing to trust us!
"Unprofessional visit. Showed up unannounced and we only knew they were there because one person stood 10 feet from our porch staring at us in through our living room window. My wife spent 10 minutes talking to them, they stated they had no business cards, they only had an appointment card but didn't present it. Honestly when you show up at someone's house you need some sort of identifier if your walking door to door in casual clothes. After the uncomfortable dead stare through the windows my wife and i have decided to post a No Solicitors sign. They didn't take no for an answer at first, pushing with more questions to circumvent the no she gave, as well as interrupted our dinner, as they showed up right at 6pm."
Robert H on May 2023
Paramount Builders takes pride in being your local home improvement contractor. Since 1991, we have served our local community by providing the very best products, warranties, installation techniques, service, and most importantly; your experience from start to finish. Our exclusive product lines give us the benefit of being able to extend our top-of-the-line products to you, our neighbors, with certainty and affordability. We hand-picked our exclusive products with you, your family, and your home's aesthetic and longevity in mind. All of our products were created to keep your home energy efficient and protected in every way. Our commitment to excellence does not waiver. We understand what it means to own a home, and we understand as professionals what you and your home deserve. We live each day by our mission statement; "Improving the Community, One Home at a Time," and thank you for continuing to trust us!
"Unprofessional visit. Showed up unannounced and we only knew they were there because one person stood 10 feet from our porch staring at us in through our living room window. My wife spent 10 minutes talking to them, they stated they had no business cards, they only had an appointment card but didn't present it. Honestly when you show up at someone's house you need some sort of identifier if your walking door to door in casual clothes. After the uncomfortable dead stare through the windows my wife and i have decided to post a No Solicitors sign. They didn't take no for an answer at first, pushing with more questions to circumvent the no she gave, as well as interrupted our dinner, as they showed up right at 6pm."
Robert H on May 2023
We specialize in roofing and siding inspection, repair and replacement as well as gutter repair and replacement. We have the experience and dedication to bring your dreams to reality! We pride ourselves on the quality work we provide, while delivering great customer service. Call or click to schedule a free inspection and estimate today!
"It went well."
Christopher E on August 2021
We specialize in roofing and siding inspection, repair and replacement as well as gutter repair and replacement. We have the experience and dedication to bring your dreams to reality! We pride ourselves on the quality work we provide, while delivering great customer service. Call or click to schedule a free inspection and estimate today!
"It went well."
Christopher E on August 2021