Sunrooms & Four-Season Rooms in Lake St. Louis, Missouri

Lake St. Louis homes and this kind of project

Our first visit for a four-season room in Lake St. Louis is spent on which way the room will face, the structure of any porch being converted and how it will be heated and cooled, which tells us how 1970s lake houses and the newer homes around Hawk Ridge were put together.

The housing stock here: a mix of 1970s and 1980s contemporaries, ranches and split-levels near the lakes, and larger 1990s to 2010s two-stories and villas in the Hawk Ridge area and south of the interstate.

Many homes of this era have a deck or screened porch ready to be rebuilt as conditioned space.

Lots, exteriors and approvals in Lake St. Louis

Tall decks facing the water are the signature project. Many are original and overdue for replacement. Steep rear yards make footing access and stair design the hard part. The community association reviews decks, docks, colors and roofed structures.

Subdivision lots in Lake St. Louis have defined building lines and easements, and HOA indentures that may be decades old but still binding. Most additions go to the rear. Matching vinyl or hardboard siding that is no longer made sometimes means re-siding a whole elevation.

What is included

Our Lake St. Louis four-season room scope covers design, energy-code documentation, permits, foundation, framing, roofing, low-E windows and patio doors, mini-split HVAC, electrical, insulation, interior finishes and exterior matching.

We take on four-season room work across Lake St. Louis, from Lake Saint Louise to Heritage of Hawk Ridge and Hawk Ridge.

What we watch for

West-facing sunrooms in Lake St. Louis overheat without the right glass coating and some exterior shading. We select glazing by orientation rather than using one window for every wall.

Lake St. Louis properties tend to be sloping, wooded lots that fall toward the water, and that affects how we stage materials, where a foundation crew, framers, a roofer, a window installer, an HVAC tech and finishers park and how debris leaves the site.

Permits and approvals in Lake St. Louis

The City of Lake Saint Louis is where we file for a four-season room in Lake St. Louis, and the job will see full addition inspections including energy code.

Exterior work in Lake St. Louis can also involve the Lake Saint Louis Community Association, and we put that package together for you.

Schedule and getting to you

Plan on six to ten weeks of site work for a four-season room in Lake St. Louis, once permits and materials are in hand.

From our Wentzville base, Lake St. Louis is a short run east on I-70 or down Highway 40/61. That is close enough that your project lead can stop by most days.

What moves the price in Lake St. Louis

We price sunrooms & four-season rooms in Lake St. Louis from a site visit, not a square-foot figure. These are the items that change the number.

• Window count, size and quality.
• Foundation type and height above grade.

More detail

Our step-by-step method for this work, and the factors that move its price, are laid out on the main sunrooms & four-season rooms page. More about the area is on our Lake St. Louis page.