Looking for sunrooms & three-season porches in St. Louis Park, MN? MN Tree Pros has been serving St. Louis Park and the surrounding Twin Cities metro since 2008. We're licensed, insured, and locally owned — and we actually pick up the phone.
## Sunrooms and three-season porches A three-season porch is the single best value-per-dollar addition on a Minnesota house. You get real usable square footage from April through October at a fraction of the cost of a conditioned addition — no HVAC extension, no full foundation in most cases, far simpler permitting. ### What we build - **Three-season porches** — insulated roof, screened or glass panels, unheated; usable roughly April to October - **Four-season sunrooms** — fully insulated, heated and conditioned, counts as living space - **Screen porch conversions** — adding glass panel systems to an existing screen porch - **Deck-to-porch conversions** — roofing over an existing deck and enclosing it - **Under-deck and patio enclosures** - **Motorized screen systems** for large openings ### Three-season vs four-season | | Three-season | Four-season | |---|---|---| | Usable months | ~7 | 12 | | Heating and cooling | None or space heater | Tied into HVAC or mini-split | | Insulated walls and floor | Roof only, typically | Full | | Counts as finished sq ft | No | Yes | | Foundation | Often footings/piers | Frost footings required | | Cost | Much lower | Roughly double | Most homeowners who "want a sunroom" are actually happiest with a three-season porch plus a mini-split, which gets close to year-round use at three-season pricing. ### Planning ranges (Twin Cities, estimates) | Project | Typical range | |---|---| | Screen porch on existing deck | $18,000 – $35,000 | | Three-season porch, new build | $28,000 – $60,000 | | Four-season sunroom | $50,000 – $110,000 | | Adding a mini-split | $3,500 – $6,500 | | Motorized screen system | $4,000 – $12,000 | Estimates for planning; foundation type, roof tie-in, and glass package drive the range. ### Minnesota specifics Frost footings go **42 inches** deep in most of the metro. Roof structure has to carry the local snow load, which means a bigger header at the tie-in than people expect. Any conditioned four-season space triggers energy code requirements for insulation and window U-factor. All of that is permitted work, and we handle it.
Why St. Louis Park chooses MN Tree Pros
- · Free on-site estimates in St. Louis Park
- · Licensed & fully insured
- · Same-day & 24/7 storm response
- · Cleanup included on every job
- · Local crew — no out-of-state subs
- · Honest, written pricing