Home › Covered structures › Collinsville, IL Serving Collinsville & the Metro East

Pergolas & covered patios in Collinsville, IL

Threshold Builders designs and builds cedar pergolas, gable-roof covered patios and pavilions for Collinsville, IL homeowners. We handle the city permit, engineering, footings below frost depth, the full build, and cleanup - most structures go up in one to two weeks on site.

Get a free itemized quote Call (618) 448-4565

Collinsville, IL

Why Collinsville homeowners call us

A roof changes how much you use the backyard.

Collinsville’s bluff terrain is unlike anywhere else we work - sloped lots, skyline views, and older homes that deserve better than a bolt-on afterthought. A pergola or covered patio roughly doubles the evenings a Collinsville backyard actually gets used - shade in July, cover in a pop-up storm, and a defined room that makes furniture, lighting and a fan possible.

We build across all of Collinsville - bluff-top streets with St. Louis skyline views, established neighborhoods like Arrowhead Heights, and newer subdivisions toward Route 157. Every structure is engineered to match the house: roof pitch and shingles carried over on covered patios, cedar sized generously on pergolas, posts on concrete footings poured below the Madison County frost line - never deck blocks.

The most requested Collinsville build we quote is a gable-roof covered patio with a ceiling fan and lighting, tied visually into the home’s roofline.

Covered structures in Collinsville

Every way to put a roof over Collinsville outdoor living.

Cedar pergolas

Generously-sized rough-sawn cedar with clean joinery - shade and structure that looks intentional, not kit-built.

Gable & shed-roof covered patios

Real roofs with shingles matched to the house, vented and flashed correctly where they meet the home.

Pavilions

Freestanding rooms in the yard - vaulted ceilings, fans, lighting, and space for a full outdoor kitchen or dining table.

Attached patio covers

Ledger-mounted covers engineered into the home’s structure - not screwed to fascia and hoped for.

Lighting, fans & screens

Wiring runs planned with the structure: dimmable lighting, ceiling fans, and screened openings where bugs are the enemy.

Deck + pergola combinations

Designed as one structure with one crew and one warranty - not a pergola bolted onto a deck later.

Straight numbers

What a covered structure costs in Collinsville

Every project gets a free, line-by-line itemized quote - materials, labor, footings, permit, everything visible before anything is signed. As honest ballparks for Collinsville:

Cedar pergola$6,000 - $14,000

Attached patio cover$12,000 - $24,000

Gable-roof covered patio$18,000 - $40,000

Freestanding pavilion$25,000 - $60,000

Lighting, fans & screensQuoted with the structure

Ranges reflect typical Collinsville projects; size, roof style, and electrical scope move the number. Your itemized quote is exact.

Covered structure questions from Collinsville homeowners

Real questions we answer at Collinsville walkthroughs.

Do I need a permit for a pergola or covered patio in Collinsville, IL?

Yes - covered structures need a building permit from the City of Collinsville, including plan review and inspections. We prepare drawings, submit, and meet the inspector - it’s part of every quote.

How much does a covered patio cost in Collinsville?

Most gable-roof covered patios we build in Collinsville land between $18,000 and $40,000 depending on size and electrical scope. Cedar pergolas run $6,000 to $14,000, and full pavilions $25,000 to $60,000. Every quote is itemized.

Attached to the house or freestanding - which is right?

Attached covers flow straight off the back door and share the home’s roofline; freestanding pavilions define a separate room deeper in the yard. Lot shape, door height and roof pitch usually make the decision - we walk both options at the free walkthrough.

Will it match my house?

That’s the difference between a structure and a kit. We match roof pitch, carry over shingle color, size posts to the home’s scale, and stain cedar to sit naturally against your siding and trim.

How long does the build take?

Once the permit is approved, most Collinsville pergolas go up in under a week and covered patios in one to two weeks. Footings are poured first and inspected before framing - we give you the schedule before we start.

Can you add a roof over my existing patio or deck?

Often, yes. We evaluate whether the existing slab or deck framing can carry the structure - covered patios need real footings, so we core through and pour them properly rather than resting posts on a slab that was never designed for the load.