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Engineer structural pros in Ashburn

Avatar for LOUDOUN SEPTIC TANK SVC
LOUDOUN SEPTIC TANK SVC
105 DELAWARE AVE
4.75(
40
)
Approved Pro
LOUDOUN SEPTIC TANK SVC
105 DELAWARE AVE
4.75(
40
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
17 local quotes requested

Loudoun Septic Tank Service Inc. is based in Hamilton, Virginia, and has more than 25 years of experience providing septic tank pumping, installation of septic systems, repair of septic systems and home sale inspections through out the area. We are a family-owned-and-operated company. Loudoun Septic Tank Service Inc. prides itself on always being on time, providing personalized services, and emphasizing attention to detail. Contact us today to schedule a full-service cleaning for your septic system. **For EMERGENCIES please call 571-233-9306**

"Loudoun Septic just left after pumping our septic system today. They were prompt, professional and answered all my questions. I recommend! Shout out to Danny Gray and John Stein V who did the work today. Thank you."

Shawn C on September 2019

Loudoun Septic Tank Service Inc. is based in Hamilton, Virginia, and has more than 25 years of experience providing septic tank pumping, installation of septic systems, repair of septic systems and home sale inspections through out the area. We are a family-owned-and-operated company. Loudoun Septic Tank Service Inc. prides itself on always being on time, providing personalized services, and emphasizing attention to detail. Contact us today to schedule a full-service cleaning for your septic system. **For EMERGENCIES please call 571-233-9306**

"Loudoun Septic just left after pumping our septic system today. They were prompt, professional and answered all my questions. I recommend! Shout out to Danny Gray and John Stein V who did the work today. Thank you."

Shawn C on September 2019


Avatar for Great Falls Septic Service Inc
Great Falls Septic Service Inc
380 Burnt Factory Rd
4.63(
99
)
Approved Pro
Great Falls Septic Service Inc
380 Burnt Factory Rd
4.63(
99
)
Approved Pro
Customers say: Quality work
77 local quotes requested
72 years of experience

With 70 years of experience, Great Falls Septic Service offers comprehensive commercial and residential septic services. From brand new installs, repairs and maintenance-preventative or emergency, you can count on us to take care of all things septic. Additionally, we offer roll off containers and perform lot clearing. Our team of skilled servicemen provide quality workmanship and excellent customer service to ensure your septic system is well-maintained and fully functional. If you're looking for a company that provides outstanding service and quality work at an affordable price, then look no further than Great Falls Septic Service. We will do everything possible to cater to our clients. Family owned & operated. Phone number(s) 540-545-7075 or 703-444-5600. Fax number 540-545-7077

"On time, friendly, effective."

David F on May 2023

With 70 years of experience, Great Falls Septic Service offers comprehensive commercial and residential septic services. From brand new installs, repairs and maintenance-preventative or emergency, you can count on us to take care of all things septic. Additionally, we offer roll off containers and perform lot clearing. Our team of skilled servicemen provide quality workmanship and excellent customer service to ensure your septic system is well-maintained and fully functional. If you're looking for a company that provides outstanding service and quality work at an affordable price, then look no further than Great Falls Septic Service. We will do everything possible to cater to our clients. Family owned & operated. Phone number(s) 540-545-7075 or 703-444-5600. Fax number 540-545-7077

"On time, friendly, effective."

David F on May 2023


Avatar for 3 J's Next Level Landscaping
3 J's Next Level Landscaping
4776 Benecia Ln
3.80(
10
)
Approved Pro
3 J's Next Level Landscaping
4776 Benecia Ln
3.80(
10
)
Approved Pro
969 local quotes requested
16 years of experience

Take your dreams to the Next Level! In business since 2009, 3 Jay's Next Level Landscaping & Home Design has been serving greater Fairfax, Prince William & surrounding counties with the finest in landscaping and home designs in the industry. We offer everything from lawn care maintenance & landscaping to building your dream home. Built using the highest quality commercial & custom grade materials, we offer free estimates on all of our work. For larger projects, we offer custom design planning, in which you will receive a set of building plans approved by the county. These blueprints will be accompanied by an accurate 3D visual representation of what your project will look like upon completion. Our friendly staff have a combined experience of over 50 years & customer service has always been our top priority. We will always respond quickly to your requests, our prices are reasonable & our work is consistently performed to the highest caliber. Take your dreams to the Next Level & call us today for your free estimate!

"One word describes Next Level: Professionals. Julian and his crew were amazing, worked quick and after digging holes in the yard, they were able to put it back together like they were never there! I will be recommending them to anyone looking for a new sprinkler system."

Jesse W on May 2025

Take your dreams to the Next Level! In business since 2009, 3 Jay's Next Level Landscaping & Home Design has been serving greater Fairfax, Prince William & surrounding counties with the finest in landscaping and home designs in the industry. We offer everything from lawn care maintenance & landscaping to building your dream home. Built using the highest quality commercial & custom grade materials, we offer free estimates on all of our work. For larger projects, we offer custom design planning, in which you will receive a set of building plans approved by the county. These blueprints will be accompanied by an accurate 3D visual representation of what your project will look like upon completion. Our friendly staff have a combined experience of over 50 years & customer service has always been our top priority. We will always respond quickly to your requests, our prices are reasonable & our work is consistently performed to the highest caliber. Take your dreams to the Next Level & call us today for your free estimate!

"One word describes Next Level: Professionals. Julian and his crew were amazing, worked quick and after digging holes in the yard, they were able to put it back together like they were never there! I will be recommending them to anyone looking for a new sprinkler system."

Jesse W on May 2025


Avatar for JK Gardening Lawn & Garden Care
JK Gardening Lawn & Garden Care
Located In:
5.00(
20
)
Approved Pro
JK Gardening Lawn & Garden Care
Located In:
5.00(
20
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
356 local quotes requested

Our talented landscape designers have the capability to service properties in the DMV area, both large and small, and everything in between. We realize the importance of an attractive, well-maintained home. Our landscapers will help you create a unique landscape design that will grow and mature through the years. We take into consideration all aspects like security, maintenance, color preferences and overall look of the design in contrast with your home. Knowing that landscape design is a investment in your home, our team is also available for maintenance services, like spring and fall cleanups, fence work, remodeling (interior & exterior), masonry, paving, tree work or any handyman services you may need! MHIC # 106114

"We had a fantastic experience with JK Gardening Lawn & Garden Care, from start to finish. Their pricing was very reasonable, and the quality of service exceeded our expectations. Kevin and his uncle came out to plant 20 emerald green arborvitae trees along our driveway. They dug all the holes by hand, demonstrating incredible effort and precision. They even moved the excess dirt into a neat pile exactly where we requested. Once the job was done, they thoroughly cleaned up and even blew the driveway free of debris. We couldn't be happier with their professionalism and attention to detail. Highly recommend!"

Barbara M on April 2025

Our talented landscape designers have the capability to service properties in the DMV area, both large and small, and everything in between. We realize the importance of an attractive, well-maintained home. Our landscapers will help you create a unique landscape design that will grow and mature through the years. We take into consideration all aspects like security, maintenance, color preferences and overall look of the design in contrast with your home. Knowing that landscape design is a investment in your home, our team is also available for maintenance services, like spring and fall cleanups, fence work, remodeling (interior & exterior), masonry, paving, tree work or any handyman services you may need! MHIC # 106114

"We had a fantastic experience with JK Gardening Lawn & Garden Care, from start to finish. Their pricing was very reasonable, and the quality of service exceeded our expectations. Kevin and his uncle came out to plant 20 emerald green arborvitae trees along our driveway. They dug all the holes by hand, demonstrating incredible effort and precision. They even moved the excess dirt into a neat pile exactly where we requested. Once the job was done, they thoroughly cleaned up and even blew the driveway free of debris. We couldn't be happier with their professionalism and attention to detail. Highly recommend!"

Barbara M on April 2025


Avatar for Marks-Woods Construction Services, LLC
Marks-Woods Construction Services, LLC
205 S Union St
4.89(
161
)
Approved Pro
Marks-Woods Construction Services, LLC
205 S Union St
4.89(
161
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1295 local quotes requested

Marks-Woods Construction Services is a full service general contractor serving Virginia and Washington, DC located in Historic Old Town Alexandria, VA. We have a complete array of services and project types to serve our diverse clientele, including residential and commercial construction. Teamwork is emphasized in our project management style. MW strives for positive collaboration with our clients to achieve all project goals. Customer service and successful communication contribute to our high percentage of repeat clients. Our service is what separates us from our competition. Our company's growth has been consistent, yet conservative by design. MW carefully selects projects that match our resources and skill set to ensure jobs are completed successfully, within budget, and on schedule. MW provides premium quality at a competitive cost with proven reliable performance, while maintaining a safe work environment. MW self performs the majority of its work, rather than using subcontractors. This allows MW to pass along significant cost savings to our clients, along with also providing a higher quality project, in a more aggressive time frame. Ready to discuss your project with the Marks-Woods team? We'd love to chat. For immediate assistance, please visit www.markswoods.com/contact and fill out the Contact Us form today!

"Excellent. We selected Marks-Woods Construction because they worked with us to create a proposal and contract that met our most important goals and stayed within our budget. We enjoyed working with the designers to come up with the details on what we wanted. The construction was done by the MW team of professionals. They know what they are doing, and it shows in the high quality results."

Alan S on March 2021

Marks-Woods Construction Services is a full service general contractor serving Virginia and Washington, DC located in Historic Old Town Alexandria, VA. We have a complete array of services and project types to serve our diverse clientele, including residential and commercial construction. Teamwork is emphasized in our project management style. MW strives for positive collaboration with our clients to achieve all project goals. Customer service and successful communication contribute to our high percentage of repeat clients. Our service is what separates us from our competition. Our company's growth has been consistent, yet conservative by design. MW carefully selects projects that match our resources and skill set to ensure jobs are completed successfully, within budget, and on schedule. MW provides premium quality at a competitive cost with proven reliable performance, while maintaining a safe work environment. MW self performs the majority of its work, rather than using subcontractors. This allows MW to pass along significant cost savings to our clients, along with also providing a higher quality project, in a more aggressive time frame. Ready to discuss your project with the Marks-Woods team? We'd love to chat. For immediate assistance, please visit www.markswoods.com/contact and fill out the Contact Us form today!

"Excellent. We selected Marks-Woods Construction because they worked with us to create a proposal and contract that met our most important goals and stayed within our budget. We enjoyed working with the designers to come up with the details on what we wanted. The construction was done by the MW team of professionals. They know what they are doing, and it shows in the high quality results."

Alan S on March 2021


Avatar for Yard By Yard Makeovers LLC
Yard By Yard Makeovers LLC
7304 Carroll Ave
4.78(
95
)
Approved Pro
Yard By Yard Makeovers LLC
7304 Carroll Ave
4.78(
95
)
Approved Pro
Customers say: Quality work
173 local quotes requested
27 years of experience

Brian David Mahan, Master Gardener, and his expert crew have been helping homeowners in Silver Spring and Takoma Park, Maryland since 1993. We can reshape and beautify neglected yards, or any yards. Our creative expertise can provide you with a basic plan compatible with your needs and budget

"Excellent workers that cleared a thick growth of bamboo from yard."

Amaris J on February 2023

Brian David Mahan, Master Gardener, and his expert crew have been helping homeowners in Silver Spring and Takoma Park, Maryland since 1993. We can reshape and beautify neglected yards, or any yards. Our creative expertise can provide you with a basic plan compatible with your needs and budget

"Excellent workers that cleared a thick growth of bamboo from yard."

Amaris J on February 2023


Avatar for East Coast Landscape Design
East Coast Landscape Design
2000 SPENCERVILLE ROAD
4.59(
139
)
Approved Pro
East Coast Landscape Design
2000 SPENCERVILLE ROAD
4.59(
139
)
Approved Pro
Customers say: Quality work
1247 local quotes requested
46 years of experience

BEAUTIFUL OUTDOOR LIVING. East Coast creates inspiring landscapes, hardscapes, water features and drainage solutions that bring beauty, new outdoor experiences and exceptional value to your life and home. SPECIALIZING IN: Patios, walkways, driveways, landscaping, fire pits, outdoor kitchens, retaining walls, outdoor lighting, drainage and erosion control (including eco-friendly permeable pavers, dry riverbeds and rain gardens through RainScapes and RiverSmart rebate programs). TRUSTED: Employees drug tested and background checked. License #42490. Insurance #Q89-0102236-M. ADDITIONAL EMAIL: mark@eclandscapedesign.com

"that Roberto and the crew did a great job on the retaining wall and driveway. The workmanship was excellent, and Roberto accommodated my every request for alterations in the design without question. In addition, his suggestions contributed to creating the finished product that I had envisioned."

Robert R on February 2025

BEAUTIFUL OUTDOOR LIVING. East Coast creates inspiring landscapes, hardscapes, water features and drainage solutions that bring beauty, new outdoor experiences and exceptional value to your life and home. SPECIALIZING IN: Patios, walkways, driveways, landscaping, fire pits, outdoor kitchens, retaining walls, outdoor lighting, drainage and erosion control (including eco-friendly permeable pavers, dry riverbeds and rain gardens through RainScapes and RiverSmart rebate programs). TRUSTED: Employees drug tested and background checked. License #42490. Insurance #Q89-0102236-M. ADDITIONAL EMAIL: mark@eclandscapedesign.com

"that Roberto and the crew did a great job on the retaining wall and driveway. The workmanship was excellent, and Roberto accommodated my every request for alterations in the design without question. In addition, his suggestions contributed to creating the finished product that I had envisioned."

Robert R on February 2025


Avatar for Thomas Custom Builders Inc
Thomas Custom Builders Inc
9058 Euclid Ave
4.74(
94
)
Approved Pro
Thomas Custom Builders Inc
9058 Euclid Ave
4.74(
94
)
Approved Pro
Customers say: Quality work
578 local quotes requested
21 years of experience

Whether you want to remodel your existing home or build a brand new one, Thomas Custom Builders can help. Our 70+ years of combined experience as Northern Virginia general contractors and our commitment to quality ensures your custom construction or design-build project will be a success. Be it a master suite, custom kitchen or home addition, we dig deep to learn what’s making you spend your time and resources on this particular project. We honestly discuss the costs associated with your goals, then we deliver what we do best: excellence in custom remodeling. The only thing that counts is finishing your job exactly the way you want it. No compromise.

"From initial design meeting to project completion Thomas Custom Builders kept promises, delivered outstanding work on time and on budget and exceeded our expectations in every way. Their on site team did everything they could to keep the work place clean and tidy so as disrupt our home life as little as possible. Team leadership kept us informed and made sure our questions were answered promptly. They are excellent tradesmen with exceptional skills. I’d give them 10 stars if I could."

Calvin S on March 2025

Whether you want to remodel your existing home or build a brand new one, Thomas Custom Builders can help. Our 70+ years of combined experience as Northern Virginia general contractors and our commitment to quality ensures your custom construction or design-build project will be a success. Be it a master suite, custom kitchen or home addition, we dig deep to learn what’s making you spend your time and resources on this particular project. We honestly discuss the costs associated with your goals, then we deliver what we do best: excellence in custom remodeling. The only thing that counts is finishing your job exactly the way you want it. No compromise.

"From initial design meeting to project completion Thomas Custom Builders kept promises, delivered outstanding work on time and on budget and exceeded our expectations in every way. Their on site team did everything they could to keep the work place clean and tidy so as disrupt our home life as little as possible. Team leadership kept us informed and made sure our questions were answered promptly. They are excellent tradesmen with exceptional skills. I’d give them 10 stars if I could."

Calvin S on March 2025


Avatar for MA Cleaning & Landscaping Design Inc
MA Cleaning & Landscaping Design Inc
13617 Creekside Dr
4.68(
443
)
Approved Pro
MA Cleaning & Landscaping Design Inc
13617 Creekside Dr
4.68(
443
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1326 local quotes requested

An established family firm, MA Cleaning & Landscaping Design remains focused on providing the highest quality landscape services to commercial and residential clients in the DMV region. Founded in 1998, MA is a U.S. Small Business Administration 8(a) certified privately held family organization. Our mission is to design the yard of your dreams by providing landscape services that enhance the beauty of your garden and the value of your property. Through our unique blend of talents and expertise, our staff can create the ideal outdoor environment to compliment any structure or living space. Whether that is providing beautiful green surroundings to enhance the workplace, improving the functionality of an outdoor area or creating a unique space of tranquility in your home, MA is here to serve.

"They were responsive and able to get to my job quickly. It turned out to be a lot more work than expected and they were able to stick to it almost all day and get it done. Very communicative throughout the day. And based on the amount of work required, the cost was reasonable. I would use them again without hesitation. I was very pleased with the outcome."

Mike M on May 2025

An established family firm, MA Cleaning & Landscaping Design remains focused on providing the highest quality landscape services to commercial and residential clients in the DMV region. Founded in 1998, MA is a U.S. Small Business Administration 8(a) certified privately held family organization. Our mission is to design the yard of your dreams by providing landscape services that enhance the beauty of your garden and the value of your property. Through our unique blend of talents and expertise, our staff can create the ideal outdoor environment to compliment any structure or living space. Whether that is providing beautiful green surroundings to enhance the workplace, improving the functionality of an outdoor area or creating a unique space of tranquility in your home, MA is here to serve.

"They were responsive and able to get to my job quickly. It turned out to be a lot more work than expected and they were able to stick to it almost all day and get it done. Very communicative throughout the day. And based on the amount of work required, the cost was reasonable. I would use them again without hesitation. I was very pleased with the outcome."

Mike M on May 2025


Avatar for Autumn's Horticultural Services
Autumn's Horticultural Services
Owls Nest Rd
New on HomeAdvisorNew on Angi
Approved Pro
Autumn's Horticultural Services
Owls Nest Rd
New on AngiNew on HomeAdvisor
Approved Pro
458 local quotes requested
1 years of experience

Exceptional landscape design just for you! With Autumn's Horticultural Services, we pride ourselves in thoughtfully executing a beautiful landscape design fit for your perfect space. Whether enhancing the outside of your home or inside, we offer landscape and plant services to create a sanctuary inside and out to provide the sanctuary of your dreams. We focus on providing exceptional services and plant materials to make every job a home run! We invite you to contact us for all your landscape design and install needs! How We Got Started I chose to work in this industry because The work to transform the landscape or garden, is more than a one and done project, the results should last a lifetime, and even get better with time. . We describe our business as Rooted in the community Community Involvement We love to help Historic Towns in the area, adding plant interest in the storefront, meeting locals is always fun! How would you describe your aesthetic when it comes to landscape design? My aesthetic varies on the client, I'm open and ready for the creative juices to flow!

Exceptional landscape design just for you! With Autumn's Horticultural Services, we pride ourselves in thoughtfully executing a beautiful landscape design fit for your perfect space. Whether enhancing the outside of your home or inside, we offer landscape and plant services to create a sanctuary inside and out to provide the sanctuary of your dreams. We focus on providing exceptional services and plant materials to make every job a home run! We invite you to contact us for all your landscape design and install needs! How We Got Started I chose to work in this industry because The work to transform the landscape or garden, is more than a one and done project, the results should last a lifetime, and even get better with time. . We describe our business as Rooted in the community Community Involvement We love to help Historic Towns in the area, adding plant interest in the storefront, meeting locals is always fun! How would you describe your aesthetic when it comes to landscape design? My aesthetic varies on the client, I'm open and ready for the creative juices to flow!

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FAQs for engineer structural projects in Ashburn, VA

You should replace floor joists as soon as you see clear signs of structural trouble—sagging floors, wide wall cracks, uneven door frames, wet or rotting wood, persistent squeaks, or windows that no longer latch. Tilted or sinking supports in the crawl space are another red flag. If you notice any of these signs, call a pro right away to keep your home’s structure safe.

If the joists are exposed from below, a pro can swap them out without touching the finished floor above. In an unfinished basement or crawl space, you’ll often see the joists and can easily reach them. When insulation, subflooring, or finished flooring blocks access, the crew must remove these materials before repairs can begin.

Sistering allows a pro to reinforce a cracked or undersized joist without tearing up the entire floor. The contractor slowly raises the frame, then fastens a new joist snugly against the damaged one to share the load. When done correctly, sistering restores full structural strength and keeps the floor level without the cost of a complete replacement.

Floor joists installed correctly in a stable environment can last for 100 years or more, often outlasting the house itself. However, termite damage, moisture, leaks, and other problems can significantly reduce a floor's lifespan. For instance, if the floor is exposed to consistent moisture, you'll likely need to replace the joists every 20 to 30 years.

Homeowners' insurance covers floor joist damage resulting from sudden and accidental events, such as fire, windstorm, or water damage from a burst pipe. It will not cover repairs resulting from gradual deterioration, poor maintenance, or termite infestations. Review your insurance policy and consult your provider to verify the conditions that guarantee full coverage. Doing so ensures you are fully aware of your responsibilities and can plan your repair work with complete confidence.

Floor joists are essential structural components that provide a stable foundation for your home. They directly transfer the weight of floors, furniture, and occupants to the foundation, ensuring stability and a safe living environment. Without these robust beams, the structure would face compromised load distribution, leading to potential safety hazards and costly repairs. Proper installation and maintenance are crucial for long-term durability and safety.

The Ashburn, VA homeowners’ guide to engineer structurals
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Jun 22, 2025
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Cozy house interior with a wooden floor
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