Sunrooms & Screened Porches in Chicago, scoped line by line
Sunrooms and screened porches in Chicago, IL — three-season and all-season rooms framed on real footings and tied cleanly to the house by OnSite crews. Your phone estimate is free; call (773) 900-7007.
Footings, framing, and roofline tied cleanly into the existing home
Three-season and all-season rooms priced against how you will use it
Screens, windows, and doors set square and weather-tight
Permits, inspections, and structure coordinated for you
Scoped, priced, approved — then built.
Send photos
Text us a couple of photos of what you're looking at. That's enough to start.
Walkthrough
A Zoom walkthrough of the space — it waives the $149 in-person written estimate.
Line-item estimate
A sectioned estimate with every line priced. You approve every line before any crew arrives.
The build
Our crews run the sequence — demo to punch list — and you sign off on the finished work.
- 01Footings
- 02Framing
- 03Glazing
- 04Roofing
- 05Screening
Each pass lands in your estimate as its own priced section — nothing hides in a lump sum.
Get your sunrooms & screened porches estimate
Your phone and text estimate is free. An in-person written estimate is $149 — a Zoom walkthrough waives it. On hourly (time-and-materials) jobs, a $129 fee applies per material run. Tell us about the project and we’ll come back with a clear, line-item scope.
The sunrooms & screened porches estimate, sectioned
- Footings
- Framing
- Glazing
- Roofing
- Screening
Every line priced. No lump sums.
Itemized · you approve every lineSunrooms & Screened Porches in Chicago — common questions
How much does a sunroom cost in Chicago?
We scope the foundation, framing, glazing, and roof line by line for your Chicago, IL build so the estimate reflects the real room, not a kit average.
What is the difference between a three-season and all-season room?
An all-season room is insulated and conditioned so you use it through IL winters; a three-season room is not. We build and price to how you actually plan to use it.
Do I get a written, line-item estimate for sunrooms & screened porches?
Yes — you get a sectioned, itemized estimate before any commitment, so you see exactly what each part of the work costs. No lump sums, no surprise change orders.
Are OnSite crews licensed and insured?
Yes. Every OnSite crew is insured, bonded, and background-checked, and one accountable team stays with your project from the first estimate to the final walkthrough.
Do you offer financing?
Yes — financing is available through licensed lending partners, so you can spread the cost over time. It's optional and there's no obligation; we can set it up once your estimate is ready.
Is the estimate really free?
Yes. Your estimate is free and there's no obligation — we scope and price the work up front so you can decide with the full picture in hand.
More work we take on in Chicago
Terms & disclosures — Illinois
OnSite General Contracting is licensed and insured to perform work in Illinois. Estimates are provided under the Illinois Home Repair and Remodeling Act.
- Illinois Home Repair and Remodeling Act: a written contract is provided for projects over $1,000.
- Consumers receive the "Home Repair: Know Your Consumer Rights" pamphlet before work begins.
- Right to cancel within 3 business days for eligible home-solicitation sales.