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Avatar for Great Lakes Builders Inc
Great Lakes Builders Inc
4.8(
169
)

Serving Winthrop Harbor, IL and surrounding areas

Approved

In business since 1946

Customers say: Super punctual

"Martin and Jake are the absolute best to work with. They were thorough, efficient, professional and so easy to work with for our basement structural work. They took time to explain what needed to be done, coordinated with different contractors (plumbing, electrical), and were able to complete our project on time while we were out of town for just a week(!!). I can't recommend Great Lakes Builders more - they were a pleasure to work with and we will absolutely be using them again for any future work we need. 5+ stars!"
Response time1 day
Response rate100%
Recommended by97%of homeowners
Avatar for AGGO Construction & Engineering, LLC
AGGO Construction & Engineering, LLC
5.0(
14
)

Serving Winthrop Harbor, IL and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Linda was excellent! Knowledgeable, great communicator and honest. We were told structural work was needed on our 100+ year home but after a thorough assessment, Linda recommended tuckpointing only!"
20 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Marc Anderson Architects
Marc Anderson Architects
5.0(
8
)

Serving Winthrop Harbor, IL and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

Marc Anderson Architects is an easy-to-work Chicago-based full-service architecture and design firm serving the greater Chicagoland area. We listen to our clients to learn and then adopt their goals as our own. These goals focus our work to find the best custom design for each client. Our knowledge of construction methods expands our creative flexibility while also providing cost-effective solutions. With experience in residential, mixed-use developments, commercial build-outs, public institutions, daycare centers, and commercial tenant improvements, MAA is well prepared to help you plan a beautiful, functional space that fits your specific needs.

Garage & Workshop
This is what the house looked like after it was completed.
Garage & Workshop
Garage & Workshop
1860s Queen-Anne Renovation

+26

Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for Evolution Drafting
Evolution Drafting
3.6(
116
)

Serving Winthrop Harbor, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Evolution Drafting did a great job modifying my existing plans and updating for Arizona codes and took care of the structural engineering as well."
Zeal Floor Plan
Charcoal
Palm Floor Plan
Charcoal Floor 2
Charcoal Floor 1

+23

Response time1 day
Response rate100%
56 neighbors recently requested a quote
Robert Anthony Renovations
5.0(
1
)

Serving Winthrop Harbor, IL and surrounding areas

Approved

"We had an excellent experience working with Robert Anthony from start to finish. They were professional, responsive, and incredibly detail-oriented throughout our kitchen remodel. His team completed our renovation on time, kept the workspace clean, and communicated with us every step of the way. The quality of the craftsmanship exceeded our expectations, and you can truly tell they take pride in their work. They transformed our kitcjen beautifully and made the entire process smooth and stress-free for my family. We are beyond happy with our kitchen and we couldn’t recommended him more."
Ascended Constructions
New to Angi

Serving Winthrop Harbor, IL 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
NXT Carpentry & Outdoor Living LLC
New to Angi

Serving Winthrop Harbor, IL and surrounding areas

Approved

At NXT Carpentry & Outdoor Living LLC, we take pride in delivering high-quality craftsmanship and dependable service on every project. We specialize in custom decks, outdoor living spaces, home remodels, additions, framing, trim work, and new construction. Our goal is simple: build it right the first time while providing clear communication, attention to detail, and a finished product you’ll be proud of for years to come. Whether you’re updating your home or starting a new project from the ground up, we’re committed to exceeding expectations and treating your home as if it were our own.\n\nBuilt Right. Every Time.

Deck Replacement
Deck Replacement
Deck Replacement
CJRC Enterprises
New to Angi

Serving Winthrop Harbor, IL and surrounding areas

Approved

I'm Charles Price, founder of CJRC Enterprises, bringing nearly 10 years of hands-on home improvement experience to every project. As a trained home inspector and exterior remodeling consultant, I bring a detail-oriented eye to everything from window and door installation to custom carpentry, trim work, and full handyman services — TV mounting, shelving, closet conversions, and more.\n\nOver 6 years in business, my team and I have earned a 5.0 rating across every review, built on clear communication, on-time delivery, and respect for your home and schedule. Whether it's a single replacement egress window, a full 14-window replacement, or a custom-built mudroom nook, I treat every job — big or small — with the same level of professionalism.\n\nI believe trust is earned before the first nail goes in. That's why I walk every client through the scope, timeline, and cost upfront, and make sure you're comfortable with the process from consultation to final walkthrough.

Avatar for Terraform Development & Design LLC
Terraform Development & Design LLC
New to Angi

Serving Winthrop Harbor, IL 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.

957 neighbors recently requested a quote
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Structural Engineering questions, answered by experts

Precast concrete can be reinforced with rebar, wire mesh, or other materials to improve its strength and add stability. Precast concrete for large construction projects is often pre-stressed as well for greater structural strength. Reinforced concrete is durable and strong, making it an ideal choice for many construction projects.

Yes, walls on the top floor can be load-bearing if stacked on the floor’s foundation.

No, a structural engineer is not the same as a builder. A structural engineer is an expert in all things related to the structural integrity of a building. The structural engineer is responsible for calculating the correct materials in terms of load-bearing capacity and overall structural safety. Structural engineers do not perform the actual building of the house or other structures. Rather, the builder executes the plans and designs specified by the structural engineer.

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

Through detailed analysis of load paths, materials, and existing damages.

The Winthrop Harbor, IL homeowners’ guide to structural engineering services

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