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Lawrence T. Butler, Professional Engineer, LLC
4.7(
52
)

Serving Onawa, IA and surrounding areas

Approved

In business since 2016

Small jobs welcome

Credit card accepted

"I scheduled an appointment through Home Adviser, and Lawrence contacted me within five minutes, and we discussed my needs. We agreed on a time and date that was convenient and a reasonable price for the work. He arrived as scheduled to my residence. Lawrence is very courteous and knowledgeable. He listened to my concerns and was not in a rush. Lawrence thoroughly inspected the area and offered a solution that fit my needs. He explained his findings and how he would complete a report within 24 hours. He sent my report early the next day. I would highly recommend Lawrence if you are looking for an experienced structural engineer who has excellent interpersonal skills and delivers on his promise."
Response time1 day
27 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Evolution Drafting
Evolution Drafting
3.4(
103
)

Serving Onawa, IA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Evolution design worked with me on designing and addition for a 100 and 5 year old house. We worked on the dimensions of the addition Plus the materials. Evolution understood the local zoning which was amazing that they knew that. We have not started construction. And evolution can help pull the permits and I'm considering them for that as well. All in all it was a long project but it was done efficiently, working with several of the staff an the departments."
Zeal Floor Plan
Charcoal
Palm Floor Plan
Charcoal Floor 2
Charcoal Floor 1

+23

Response time1 day
Response rate100%
50 neighbors recently requested a quote
Avatar for Periphery Design, LLC
Periphery Design, LLC
5.0(
1
)

Serving Onawa, IA and surrounding areas

Approved

In business since 2004

Small jobs welcome

Offers commercial services

"Dave designed an addition for our home. The design is very cohesive and in harmony with the existing homeâ s architecture. His ideas, professionalism, and attention to detail are excellent, we look forward to the finished product."
Row House Apartments
Kitchen View
Historic Rehabilitation
Historic Rehabilitation
Addition-Bedroom Suite and Garage

+2

Response time11 hrs
Response rate92%
1 neighbors recently requested a quote
Ascended Constructions
New to Angi

Serving Onawa, IA and surrounding areas

Approved (Corporate)

In business since 2023

Offers commercial services

We’re a family owned and operated company that values honesty and integrity, and stands behind our work. We offer over 40 years of industry experience. We specialize in Asphalt Shingle Roofing installation, replacement, and repairs. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

1 neighbors recently requested a quote
Ascended Constructions
New to Angi

Serving Onawa, IA and surrounding areas

Approved

In business since 2023

Offers commercial services

We’re a family owned and operated company that values honesty and integrity, and stands behind our work. We offer over 40 years of industry experience. We specialize in Asphalt Shingle Roofing installation, replacement, and repairs. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

8 neighbors recently requested a quote
Avatar for Terraform Development & Design LLC
Terraform Development & Design LLC
New to Angi

Serving Onawa, IA and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Offers commercial services

Terraform Development & Design LLC, delivers expert permit-ready architectural plans and drafting services nationwide. With 8+ years of experience and hundreds of clients across all 50 states, we create code-compliant residential and commercial construction documents that get approved fast and built right.\nFrom site plans, floor plans, elevations, structural & foundation drawings to MEP coordination, full construction sets, 3D renderings, interior design, solar PV layouts, and precise material takeoffs - we handle it all. Fast 4-6 week turnaround, 3 design revisions included, free revisions for city redline changes, transparent pricing (starts at $2,000), and direct partnerships with licensed engineers for stamps in every state.

18 neighbors recently requested a quote
Avatar for Evolution Drafting
Evolution Drafting
3.3(
38
)

Serving Onawa, IA and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"I had a fantastic experience working with this drafting firm. From the very first phone call, Kirsten?our drafting consultant? was clear, professional, and incredibly helpful. She explained the entire process in detail and made sure all of my questions were answered up front, which gave me immediate confidence in the team. This firm partnered with engineers and architects to get the best quote for me on a stamp for my plans after they did an exceptional job on drawing the prints that met all the requirements for permitting. Their coordination and attention to detail made the process very simple on my end. If you are looking for a highly capable drafting firm that knows how to get things done right, I highly recommend them!"
Charcoal Residential
Response time6 hrs
Recommended by23%of homeowners
Reed Design Architects
5.0(
1
)

Serving Onawa, IA and surrounding areas

In business since 1997

Free estimates

"He is a brilliant architect. I live in an old home which is always tricky. He designed our master bedroom in a 90 year old house in a way that didn't need any major structural changes. It looked as though the house was originally made for that design! The design he came up with also included everything down to the last detail. He does quality work and the guys he works with clean up after themselves. In the beginning of each project he extrapolates what it is that you are looking for. He doesn't try to push his latest design on you. His focus is solely on what each customer wants and he is very open minded to the taste of each client. He is incredibly efficient and I have never seen anybody work the way he does. Trent is very good at avoiding mistakes and his communications skills are excellent. He is very knowledgeable in his field, and because of that he completes projects very quickly and delivers high quality results. It is fun working with Trent because he makes it easy!"
Response time2 hrs
Recommended by100%of homeowners
Avatar for KD 3 Environmental, LLC
KD 3 Environmental, LLC
0.0(
2
)

Serving Onawa, IA and surrounding areas

In business since 2003

Our Environmental Department can effectively and efficiently diagnose any problem you may have. With over 10 years of construction knowledge and 14 years of environmental training both military and civilian our inspections and solutions are common. \n\nToo many times you hear of buildings being demolished or the interior completely removed. We use techniques that allow for you to save the structure and building materials allowing for the least inconvenience and expense for you or your business when ever possible.\n\nWE DO IT RIGHT THE FIRST TIME, EVERY TIME! \n

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Structural Engineering questions, answered by experts

Absolutely, as it ensures designs are viable and won’t compromise structural integrity.

Through proper drainage solutions and compacting the foundation soil.

A 4-inch-thick concrete slab can support around 4,000 pounds per square foot if a contractor reinforces the slab with rebar, while that same slab without reinforcements will support closer to 1,000 pounds. For the purposes of a patio, 4 inches in thickness without reinforcement should suffice unless you’re installing heavy kitchen equipment or a hot tub on it. In those cases, reinforcing your slab and sticking with 4 inches of thickness should provide plenty of strength.

If you’re building new construction or adding onto your existing home, hiring a structural engineer is not only worth it but it’s probably required by your local building department. Structural engineers will ensure you aren’t making your home unsafe in the building process, which is crucial from a safety perspective but also a legal one. It’s also worth hiring a structural engineer if you’re making changes to structural components, like removing a load-bearing wall.

Yes, you can build over a stump if the roots are no longer alive. Living roots will continue to grow and may damage your new construction over time. Similarly, you should also remove rotting stumps because they may continue to attract pests and even cause new structures (especially those made from wood) to decompose as well.

The Onawa, IA homeowners’ guide to structural engineering services

From average costs to expert advice, get all the answers you need to get your job done.