Perma-Seal specializes in protecting the value of your home backed by 45 years of serving the Chicagoland and NW Indiana areas. Our basement waterproofing stops leaks and flooding, our foundation repairs fix settling and bowed walls, and our crawl space solutions control humidity and improve air quality. Our concrete lifting and leveling service offers a reliable, quick, and highly effective way to repair your sunken, cracked driveway, patio, pool deck, or sidewalk for a fraction of the cost of replacement. Additionally, we provide yard drainage solutions, sewer and plumbing services, and home comfort solutions such as air sealing, and insulation to ensure your home remains in top condition. What sets us apart? Our commitment to superior customer service and our solid warranty. Any product or work covered by our warranty is serviced free of charge for the entire warranty period. Choose Perma-Seal for reliable, quality solutions to keep your home safe and comfortable.
"Work was done well."
Marc B on April 2025
Perma-Seal specializes in protecting the value of your home backed by 45 years of serving the Chicagoland and NW Indiana areas. Our basement waterproofing stops leaks and flooding, our foundation repairs fix settling and bowed walls, and our crawl space solutions control humidity and improve air quality. Our concrete lifting and leveling service offers a reliable, quick, and highly effective way to repair your sunken, cracked driveway, patio, pool deck, or sidewalk for a fraction of the cost of replacement. Additionally, we provide yard drainage solutions, sewer and plumbing services, and home comfort solutions such as air sealing, and insulation to ensure your home remains in top condition. What sets us apart? Our commitment to superior customer service and our solid warranty. Any product or work covered by our warranty is serviced free of charge for the entire warranty period. Choose Perma-Seal for reliable, quality solutions to keep your home safe and comfortable.
"Work was done well."
Marc B on April 2025
We Have Become Well Known As The "Flat Roof Specialists In The Chicagoland Area". For the last 60 years we have Perfected Installation on Flat/Low Slope Roofing & Shingle Roofing. We use the best products and materials with the longest warranties, saving you energy, keeping you dry, and bringing long term value to your home or property. Let the professionals at Pulaski Roofing & Building Construction help you with a quality commercial roofing solution that fits your needs! We like to say that a good roof is one you can forget! Pulaski Roofing & Building Construction has over 60 years of experience installing and repairing all types of roofing systems in Chicago and the surrounding areas, Pulaski specializes in turnkey solutions for your commercial, industrial and residential building projects, and we are the flat-roof contractor of choice for commercial and industrial buildings in the region. We are a family owned and operated company and take pride in what we do. Feel free to contact us for an estimate or to let us know what you think, good or bad. You can read a few testimonials from previous customers on our reference page.
We Have Become Well Known As The "Flat Roof Specialists In The Chicagoland Area". For the last 60 years we have Perfected Installation on Flat/Low Slope Roofing & Shingle Roofing. We use the best products and materials with the longest warranties, saving you energy, keeping you dry, and bringing long term value to your home or property. Let the professionals at Pulaski Roofing & Building Construction help you with a quality commercial roofing solution that fits your needs! We like to say that a good roof is one you can forget! Pulaski Roofing & Building Construction has over 60 years of experience installing and repairing all types of roofing systems in Chicago and the surrounding areas, Pulaski specializes in turnkey solutions for your commercial, industrial and residential building projects, and we are the flat-roof contractor of choice for commercial and industrial buildings in the region. We are a family owned and operated company and take pride in what we do. Feel free to contact us for an estimate or to let us know what you think, good or bad. You can read a few testimonials from previous customers on our reference page.
7 employees. Uses subs. Cost is determined by the job. Travel charges may apply. No service charges. No extra charge for after hours service. May contact through email.
7 employees. Uses subs. Cost is determined by the job. Travel charges may apply. No service charges. No extra charge for after hours service. May contact through email.
EHM is a structural moving and elevating company that also specializes in foundation repair and replacement. We have been working in the Midwest since the Great Floods of 1993. We specialize in severely comprised foundation issues. We can elevate, level, pier or replace a wall or your entire foundation. We do not do mudjacking, waterproofing or minor crack repair.
"I did not get the service that we originally talked about I am very unhappy"
Donna S on August 2021
EHM is a structural moving and elevating company that also specializes in foundation repair and replacement. We have been working in the Midwest since the Great Floods of 1993. We specialize in severely comprised foundation issues. We can elevate, level, pier or replace a wall or your entire foundation. We do not do mudjacking, waterproofing or minor crack repair.
"I did not get the service that we originally talked about I am very unhappy"
Donna S on August 2021
No, it’s not legal for unlicensed individuals to conduct structural calculations for buildings or building repairs. Not only do licensing requirements prevent DIYers from tackling this project, but mistakes can also be extremely dangerous and put your property and anyone inside or near it at risk of severe injury or even death. You should always hire a licensed and certified local structural engineer to make structural calculations.
Yes, all states require structural engineers to carry the proper license, with specifics determined by each state. You can use Angi’s state licensing tool to confirm that the structural engineer you’re considering holds the required licensing to tackle your job. Hiring an unlicensed structural engineer will not only cause issues with permits but it could also lead to an unsafe building. The cost of a professional, licensed, and experienced engineer is well worth the investment.
The process of hiring a structural engineer starts by finding reliable professionals in your area and comparing quotes from at least three of them. From there, you can narrow down your selection by asking some leading questions:
Do you have experience working in my specific area?
Do you have professional indemnity insurance?
What will your structural report cover?
Do you charge a flat fee for a structural report or by the hour?
How long have you been in business?
Do you have a list of customer references?
Structural engineers typically charge between $100 and $250 per hour, but many jobs won’t be based on a per-hour fee. Instead, the structural engineer will offer a flat rate for the inspection and structural calculations. The flat rate for a structural engineer costs an average of around $550, but you could see prices ranging from $300 to $800, depending on the complexity of your project and how easy it is to access certain parts of your home for the inspection.
Whether you’re building a new home or building an extension on your existing property, you will likely need both a structural engineer and an architect. A structural engineer will determine what loads your foundation and framing can safely handle, and an architect will draw plans according to those structural calculations to simplify the building process. You can start by contacting a structural engineer near you, as many work alongside architects and can get all of the prep work done at once.