A sunroom blurs the line between indoors and outdoors year-round — a feature Midwest buyers increasingly expect. Glass-enclosed additions expand livable space without the full cost of a traditional room addition.
Free · Verified pros only · No commitment
Most contractor problems are preventable. These checks take under an hour and catch the most common hiring mistakes.
Ask for their MO contractor license number — then verify it yourself at the state licensing website before signing anything.
Request a certificate of insurance. Call the carrier directly to confirm general liability and workers' comp are active.
Get at least three written bids. Any quote more than 30% below average is a red flag, not a deal.
Ask specifically about permit requirements for sun room. A contractor who says "no permit needed" for structural work is a liability.
Read recent Google and BBB reviews for complaint patterns — not just star averages. One-star reviews reveal how disputes get resolved.
AboveBoardPros handles checks 1 and 2 for you.
Every contractor on this page has had their license cross-checked against the MO state database and insurance verified. You negotiate the contract — but you start from a verified shortlist.
"sunroom addition cost"
"four season room vs three season room"
"sunroom builders near me"
General liability, workers' comp, and bonding explained — and why a Certificate of Insurance is not the same as actual coverage. What to check before anyone sets foot on your property.
Kitchen remodels take 8–14 weeks. Bathroom remodels take 3–6 weeks. Roof replacements take 1–3 days. Here are the honest timelines for every major home improvement project — and what causes delays.
Home equity loans, HELOCs, cash-out refinance, personal loans, and contractor financing all have different rates and risks. Here's how to choose the right option for your project in 2025.
Most homeowners sign contractor contracts they don't fully understand. Here are the 8 clauses that create risk — and the 5 things every legitimate contract must include.
Missouri has no state general contractor license requirement — which means anyone can call themselves a contractor. Here's the 7-step checklist to verify before you hand over a deposit.
Not every problem needs a contractor today — but some absolutely do. Use our home repair urgency checker to find out if your issue needs immediate action, a 2-week appointment, or just monitoring.
Verified pros who passed the license and insurance checks. Free quotes, no commitment.
Compare verified pros in your area.
Ranked by verification strength. License and insurance status is labeled by source: state database, insurance records, or contractor website.
AI cross-checked against state license database.
Get a Free QuoteMultiple quotes from verified pros. Compare and decide with confidence.
Get Free Quotes →Typical Cost Range
$20,000–$70,000
Ellisville market estimate
In Ellisville, sun room typically ranges from $20,000 to $70,000. Getting three written bids from licensed contractors is the most reliable way to calibrate your specific project.
Timeline depends on project scope. Ask for a written schedule before work begins, and specifically ask about material lead times and permit inspection windows — these cause most delays.
Sunroom additions require a full building permit and are treated as room additions by building departments. They must meet all applicable codes including energy efficiency, structural loads, egress, and electrical. A four-season sunroom is held to the same standards as any other heated living space.
Yes. Ellisville enforces active licensure and insurance. Ask any contractor for their license number and verify it at the MO state licensing website before signing a contract.
Four-point check: active license confirmed against the MO licensing authority, corporate standing reviewed, insurance validated, business reputation analyzed. We reject roughly 40% of applicants and monitor every listed contractor continuously. A license that lapses means removal.
Also serving — St. Louis
