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*The Angi rating for Structural Engineering companies in Montclair, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Structural Engineering needs.
*The HomeAdvisor rating for Structural Engineering companies in Montclair, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Structural Engineering needs.
Last update on December 25, 2025
Find Structural engineers in Montclair

Structurist Consulting Engineers
Structurist Consulting Engineers
Structurist Consulting Engineers, PLLC provides a wide array of structural engineering services and design in collaboration with Architects, building designers, general contractors, developers and private property owners.
"everything good"
John J on September 2023
Structurist Consulting Engineers, PLLC provides a wide array of structural engineering services and design in collaboration with Architects, building designers, general contractors, developers and private property owners.
"everything good"
John J on September 2023
The Crack Man
The Crack Man
Specializing in injection of cracks in poured concrete foundation walls to prevent water intrusion and protect foundation and basement. Specialize in working with Realtors, Home Inspectors and Homeowners. MHIC # 93169. Free estimates via phone. Cost effective & permanent.
"Had a 5 foot long crack in my poured-concrete basement wall. It was not leaking, but I wanted to have it sealed regardless. Alek came on a Saturday, gave me his estimate, and then repaired the wall. He was very forthcoming by explaining that the repair was not absolutely necessary if there was no leakage, but I wanted it sealed anyway. He did a top rate job and I would not hesitate to use his services again."
William R on April 2020
Specializing in injection of cracks in poured concrete foundation walls to prevent water intrusion and protect foundation and basement. Specialize in working with Realtors, Home Inspectors and Homeowners. MHIC # 93169. Free estimates via phone. Cost effective & permanent.
"Had a 5 foot long crack in my poured-concrete basement wall. It was not leaking, but I wanted to have it sealed regardless. Alek came on a Saturday, gave me his estimate, and then repaired the wall. He was very forthcoming by explaining that the repair was not absolutely necessary if there was no leakage, but I wanted it sealed anyway. He did a top rate job and I would not hesitate to use his services again."
William R on April 2020

Basement Detective
Basement Detective
As an essential service, Basement Detective is still inspecting and servicing customers. We are taking extra precautions to ensure everyone’s health and safety in serving our customers, including: ✓Cleaning our hands often with soap and/or using hand sanitizer. ✓Wearing gloves during our inspections. ✓Ensuring we are covering any cough or sneeze. ✓Keeping a safe distance from people. ✓Wiping down equipment that is used during our inspections. We are a full service waterproofing and remodeling contractor. We pride ourselves on having honest technicians give honest evaluations. We offer solutions and options that are affordable and practical. Our waterproofing solutions carry a fully transferable lifetime warranty. We also offer many flexible financing options. Additional service areas: King George, Warren, Arlington, Clarke, Fairfax, Fauquier, Frederick, Loudoun, Montgomery, Prince George’s & Prince William Counties
"Had a great experience with Chris Kuper at Basement Detective! My basement flooded from non-stop storms and I needed a sump pump installed along with complete renovation of my basement. They were very competitive in pricing and outstanding in results. Chris even helped coordinate with the contractor doing my basement renovation after the sump was installed to make sure none of the drainage was disturbed by the new work being done. I have since weathered at least 3 large storms and can hear the sump working as needed. Very happy with the results!"
Ian P on April 2020
As an essential service, Basement Detective is still inspecting and servicing customers. We are taking extra precautions to ensure everyone’s health and safety in serving our customers, including: ✓Cleaning our hands often with soap and/or using hand sanitizer. ✓Wearing gloves during our inspections. ✓Ensuring we are covering any cough or sneeze. ✓Keeping a safe distance from people. ✓Wiping down equipment that is used during our inspections. We are a full service waterproofing and remodeling contractor. We pride ourselves on having honest technicians give honest evaluations. We offer solutions and options that are affordable and practical. Our waterproofing solutions carry a fully transferable lifetime warranty. We also offer many flexible financing options. Additional service areas: King George, Warren, Arlington, Clarke, Fairfax, Fauquier, Frederick, Loudoun, Montgomery, Prince George’s & Prince William Counties
"Had a great experience with Chris Kuper at Basement Detective! My basement flooded from non-stop storms and I needed a sump pump installed along with complete renovation of my basement. They were very competitive in pricing and outstanding in results. Chris even helped coordinate with the contractor doing my basement renovation after the sump was installed to make sure none of the drainage was disturbed by the new work being done. I have since weathered at least 3 large storms and can hear the sump working as needed. Very happy with the results!"
Ian P on April 2020
GEOFREEZE
GEOFREEZE
30 EMPLOYEES. ADDITIONAL CONTACT - JOHN SHUSTER.
"It went well. The job was performed to the specifications laid out in the contract. It was finished on time with a professional work crew. My one quibble with them was how they dealt with our plants. They were less attentive to making sure the property was restored to its previous state. However, they fixed the issue promptly once it was raised. I would recommend GeoFreeze for foundation and engineering work."
Angie L on October 2020
30 EMPLOYEES. ADDITIONAL CONTACT - JOHN SHUSTER.
"It went well. The job was performed to the specifications laid out in the contract. It was finished on time with a professional work crew. My one quibble with them was how they dealt with our plants. They were less attentive to making sure the property was restored to its previous state. However, they fixed the issue promptly once it was raised. I would recommend GeoFreeze for foundation and engineering work."
Angie L on October 2020

Deska Foundation Repair and Basement Waterproofing
Deska Foundation Repair and Basement Waterproofing
Deska Services is a licensed professional engineering, specialty waterproofing and structural contracting company. Our range of services varies from structural engineering evaluations, design, waterproofing, structural repairs, and foundation underpinning.
"My wife and I reached out to several waterproofing/foundation repair companies and ultimately went with Deska as Dave, the on-site estimator, was the most knowledgeable, honest, and efficient when assessing our basement’s water damage. We were NOT disappointed with the quality of work. Ronald and Andy showed up on time the morning of the project after giving a heads up call ~30 minutes out. They introduced themselves and explained the project scope confirming everything Dave had itemized on the project invoice before starting any work. I poked my head in the backyard a couple of times throughout the day to see if either of them needed anything, and Ronald always took a break to explain how the work was going. He took progress pictures and answered the exhaustive questions I threw his way as this was the first waterproofing project for me. The second/last day of the project prior to finishing up, Ronald and Andy gave my wife and I an overview of everything they had done and even insisted on returning the paver stones back to their original positions since we had those dug out when calling various contractors over for their estimates. A nice little personable touch! Thank you Dave and especially Ronald and Andy for your exceptional work and professionalism during the two days. Although it’s unfortunately a premium to find trustworthy contractors especially in the waterproofing/foundation repair space, I would HIGHLY RECOMMEND these gentlemen to take care of any of your waterproofing/foundation repair needs."
Tim C on October 2023
Deska Services is a licensed professional engineering, specialty waterproofing and structural contracting company. Our range of services varies from structural engineering evaluations, design, waterproofing, structural repairs, and foundation underpinning.
"My wife and I reached out to several waterproofing/foundation repair companies and ultimately went with Deska as Dave, the on-site estimator, was the most knowledgeable, honest, and efficient when assessing our basement’s water damage. We were NOT disappointed with the quality of work. Ronald and Andy showed up on time the morning of the project after giving a heads up call ~30 minutes out. They introduced themselves and explained the project scope confirming everything Dave had itemized on the project invoice before starting any work. I poked my head in the backyard a couple of times throughout the day to see if either of them needed anything, and Ronald always took a break to explain how the work was going. He took progress pictures and answered the exhaustive questions I threw his way as this was the first waterproofing project for me. The second/last day of the project prior to finishing up, Ronald and Andy gave my wife and I an overview of everything they had done and even insisted on returning the paver stones back to their original positions since we had those dug out when calling various contractors over for their estimates. A nice little personable touch! Thank you Dave and especially Ronald and Andy for your exceptional work and professionalism during the two days. Although it’s unfortunately a premium to find trustworthy contractors especially in the waterproofing/foundation repair space, I would HIGHLY RECOMMEND these gentlemen to take care of any of your waterproofing/foundation repair needs."
Tim C on October 2023

Thompson Creek Window Company
Thompson Creek Window Company
Thompson Creek Window Company designs, manufactures, sells, and installs stronger, safer windows built specifically for your home and our unique climate. We have been customizing and manufacturing replacement windows, doors, gutters, siding and roofing in the Mid-Atlantic region since 1980. Our products deliver time and again, improving a home’s energy efficiency and increasing home values, curb appeal and sheer comfort. Our windows and gutter systems are custom manufactured, installed and serviced from our family owned and operated factory in Upper Marlboro, Maryland – eliminating costly and inefficient middle parties. We’re so sure you’ll love our products that we back everything up with our Thompson Creek No-Hassle Warranty and Buyer Protection Guarantee. At Thompson Creek, we’re your friends and neighbors. We’re proud of our history in the Mid-Atlantic region and proud to help our communities improve the comfort and conditions of their homes.
"No other way to put it. Install went fine. When I call, email, text for warranty service… run around at every turn. They say they will schedule right away for evaluation…didn’t happen. They say they will get it replaced right away…hasn’t happened. Regret after the sale. Xavier D and Alexis C are my two “contacts”. Unacceptable. Standing by for some ridiculous message about being sorry for the experience and to call some number that will fail to get a response. Also filing a BBB complaint."
zach Z on May 2025
Thompson Creek Window Company designs, manufactures, sells, and installs stronger, safer windows built specifically for your home and our unique climate. We have been customizing and manufacturing replacement windows, doors, gutters, siding and roofing in the Mid-Atlantic region since 1980. Our products deliver time and again, improving a home’s energy efficiency and increasing home values, curb appeal and sheer comfort. Our windows and gutter systems are custom manufactured, installed and serviced from our family owned and operated factory in Upper Marlboro, Maryland – eliminating costly and inefficient middle parties. We’re so sure you’ll love our products that we back everything up with our Thompson Creek No-Hassle Warranty and Buyer Protection Guarantee. At Thompson Creek, we’re your friends and neighbors. We’re proud of our history in the Mid-Atlantic region and proud to help our communities improve the comfort and conditions of their homes.
"No other way to put it. Install went fine. When I call, email, text for warranty service… run around at every turn. They say they will schedule right away for evaluation…didn’t happen. They say they will get it replaced right away…hasn’t happened. Regret after the sale. Xavier D and Alexis C are my two “contacts”. Unacceptable. Standing by for some ridiculous message about being sorry for the experience and to call some number that will fail to get a response. Also filing a BBB complaint."
zach Z on May 2025

Louis & Associates LLC
Louis & Associates LLC
Louis & Associates, LLC is a structural engineering consulting firm in Burke, VA since 2000. Luyi (Louis) Yan, the president and principal structural engineer, holds PE licenses in VA, MD, and DC with BS & MS degree in structural and civil engineering majors, and is the member of ASCE and NCEES. Mr. Yan had been a lead engineer in top national design firms, such as, Bechtel and PB. He has broad engineering knowledge and 25 years+ hands-on design experience in wood, masonry, steel, and concrete structures. He is familiar with current building codes, and local government's requirements for application of building permits. Louis & Associates, LLC and its long term associates would like to provide a full service of design including architecture, structural, and MEP (mechanical, electrical, and plumbing). Louis & Associates provides following services: -Structural analysis, design, AutoCAD drafting, and building inspection/evaluation -Including residential, commercial, industrial, restaurants, schools, governmental and religious buildings -Review, approve and seal structural drawings designed by others; -Building-code compliance analysis for building permit applications; -Building renovation/expansion design: add a new addition, pup-up, attic, dormer, stair, garage, deck and sunroom, finish basement and remove existing load-bearing walls and columns; -Structural damage investigation and repairing design, such as foundation settlement, retaining failure, basement wall/floor slab cracking, floor vibration/sagging, damages caused by falling trees, fire, snow, wind and reckless construction, etc. -Retaining wall and foundation underpinning design, -Light-gauge steel (LGS) framing and insulated concrete form (ICF) wall system design -Structural evaluation and repairing design for floor sagging, wall tilting and cracking, foundation settlement, structural damages caused by water, fire, snow, wind, seismic, overloading, and reckless construction.
"Louis was easy to schedule and was at the house within a week of me calling to schedule the inspection. Louis performed the inspection, relying on me to point out areas of concern and then taking some brief measurements and photos. However, he could not diagnose a main area of concern in second floor joists due to no access to joists either from above or below, and did not provide a solution or a diagnosis despite being paid for analysis. His visit was a turning point in the quality of service. His report was substandard. He did not properly document all needed repairs, and what he wrote in the report differed from what he mentioned in person regarding a failing floor joist. Multiple attempts were made to contact Louis by phone with voicemails and by e-mail to clarify discrepancies between the report and comments during his inspection, but he failed to communicate back to me. Overall, this service was not worth the $500 that it cost."
Nathan M on June 2018
Louis & Associates, LLC is a structural engineering consulting firm in Burke, VA since 2000. Luyi (Louis) Yan, the president and principal structural engineer, holds PE licenses in VA, MD, and DC with BS & MS degree in structural and civil engineering majors, and is the member of ASCE and NCEES. Mr. Yan had been a lead engineer in top national design firms, such as, Bechtel and PB. He has broad engineering knowledge and 25 years+ hands-on design experience in wood, masonry, steel, and concrete structures. He is familiar with current building codes, and local government's requirements for application of building permits. Louis & Associates, LLC and its long term associates would like to provide a full service of design including architecture, structural, and MEP (mechanical, electrical, and plumbing). Louis & Associates provides following services: -Structural analysis, design, AutoCAD drafting, and building inspection/evaluation -Including residential, commercial, industrial, restaurants, schools, governmental and religious buildings -Review, approve and seal structural drawings designed by others; -Building-code compliance analysis for building permit applications; -Building renovation/expansion design: add a new addition, pup-up, attic, dormer, stair, garage, deck and sunroom, finish basement and remove existing load-bearing walls and columns; -Structural damage investigation and repairing design, such as foundation settlement, retaining failure, basement wall/floor slab cracking, floor vibration/sagging, damages caused by falling trees, fire, snow, wind and reckless construction, etc. -Retaining wall and foundation underpinning design, -Light-gauge steel (LGS) framing and insulated concrete form (ICF) wall system design -Structural evaluation and repairing design for floor sagging, wall tilting and cracking, foundation settlement, structural damages caused by water, fire, snow, wind, seismic, overloading, and reckless construction.
"Louis was easy to schedule and was at the house within a week of me calling to schedule the inspection. Louis performed the inspection, relying on me to point out areas of concern and then taking some brief measurements and photos. However, he could not diagnose a main area of concern in second floor joists due to no access to joists either from above or below, and did not provide a solution or a diagnosis despite being paid for analysis. His visit was a turning point in the quality of service. His report was substandard. He did not properly document all needed repairs, and what he wrote in the report differed from what he mentioned in person regarding a failing floor joist. Multiple attempts were made to contact Louis by phone with voicemails and by e-mail to clarify discrepancies between the report and comments during his inspection, but he failed to communicate back to me. Overall, this service was not worth the $500 that it cost."
Nathan M on June 2018

'58 Foundations & Waterproofing
'58 Foundations & Waterproofing
For over 65 years, '58 Foundations & Waterproofing has provided the highest-quality basement waterproofing, crawl space encapsulation, foundation repair, and mold removal. We lead with a promise of Trusted Five-Star Service, which means the customer experience is at the center of everything we do. Since 1958, we have been steadfast in keeping this promise and upholding the values upon which '58 Foundations & Waterproofing was built: trust, teamwork, integrity, respect, and communication. From the initial call to job completion, our customers are met with knowledgeable, caring, and professional staff prepared to offer a five-star experience that is unmatched in the home repair industry. What’s more, you can enjoy the peace of mind that comes with our lifetime warranty and our industry-unique money-back guarantee!
"Very professional and talented employees, very professional results. Excellent communication and follow-up. On top of that, the job was accomplished under the bid amount, and was completed faster than scheduled. Thank you 58 Foundation!!"
Philippe H on June 2022
For over 65 years, '58 Foundations & Waterproofing has provided the highest-quality basement waterproofing, crawl space encapsulation, foundation repair, and mold removal. We lead with a promise of Trusted Five-Star Service, which means the customer experience is at the center of everything we do. Since 1958, we have been steadfast in keeping this promise and upholding the values upon which '58 Foundations & Waterproofing was built: trust, teamwork, integrity, respect, and communication. From the initial call to job completion, our customers are met with knowledgeable, caring, and professional staff prepared to offer a five-star experience that is unmatched in the home repair industry. What’s more, you can enjoy the peace of mind that comes with our lifetime warranty and our industry-unique money-back guarantee!
"Very professional and talented employees, very professional results. Excellent communication and follow-up. On top of that, the job was accomplished under the bid amount, and was completed faster than scheduled. Thank you 58 Foundation!!"
Philippe H on June 2022
Mr Basement
Mr Basement
Mr. Basement is a full line basement and crawl space contractor serving the greater Baltimore, Arlington metros. We provide homeowners expert advice and solutions regarding basement waterproofing, crawl space encapsulation, foundation repair and mold removal. Additional phone - (410) 344-9299, (877) 547-1314.
Mr. Basement is a full line basement and crawl space contractor serving the greater Baltimore, Arlington metros. We provide homeowners expert advice and solutions regarding basement waterproofing, crawl space encapsulation, foundation repair and mold removal. Additional phone - (410) 344-9299, (877) 547-1314.
Zign Consulting
Zign Consulting
We are structural Engineers, our expertise include new building design, addition. Alteration, deck construction and underpinning of foundation and related works. We also provide inspections and permitting services Minimum Consultation fee including site visit is $400.00. This fee includes on site verbal finding and recommendation. For a written report signed and sealed by Professional Engineer, we charge additional fee starting from $500.00depending on scope of work. Structural design and drawing preparation fees vary based on the scope of work. We prepare permit ready drawings per the jurisdiction code requirement. We also provide permit expediting service for additional fee.
"Prior to any demolition work, I called on Zign Consulting to help me figure it out whether it would be simple or complicated to remove two walls that were separating the kitchen and living space. I really appreciated Sit's communication and responsiveness throughout; the day of the site visit she inspected the first floor and basement and provided sound advice. Based off of her recommendations, I removed the two walls without any issue and am currently enjoying my new open floor plan. I am happy to support a woman-owned, woman-run business and will call upon Sit and her team again for future projects."
Sandi T on February 2021
We are structural Engineers, our expertise include new building design, addition. Alteration, deck construction and underpinning of foundation and related works. We also provide inspections and permitting services Minimum Consultation fee including site visit is $400.00. This fee includes on site verbal finding and recommendation. For a written report signed and sealed by Professional Engineer, we charge additional fee starting from $500.00depending on scope of work. Structural design and drawing preparation fees vary based on the scope of work. We prepare permit ready drawings per the jurisdiction code requirement. We also provide permit expediting service for additional fee.
"Prior to any demolition work, I called on Zign Consulting to help me figure it out whether it would be simple or complicated to remove two walls that were separating the kitchen and living space. I really appreciated Sit's communication and responsiveness throughout; the day of the site visit she inspected the first floor and basement and provided sound advice. Based off of her recommendations, I removed the two walls without any issue and am currently enjoying my new open floor plan. I am happy to support a woman-owned, woman-run business and will call upon Sit and her team again for future projects."
Sandi T on February 2021
The Montclair, VA homeowners’ guide to structural engineering services
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