Sunrooms Cost in Portland, ME in 2026
Most Sunrooms projects in Portland, ME cost between $24,000 and $90,000. The typical price is $50,000.
Portland prices track the national average closely. Costs here are close enough to the national picture that the adjustment barely moves the number.
What drives the price
- Three-season versus fully conditioned four-season
- Foundation type — slab, piers or existing deck
- Glazing performance
- Whether HVAC is extended into the space
Usually included
- Foundation and framing
- Glazing and roof panels
- Electrical rough-in and finish
Usually extra
- HVAC extension
- Permits
- Interior finishes beyond basic
Unit prices in Portland, ME
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $120 |
| Mid-range | $250 |
| High-end | $450 |
Sunroom builders in Portland, ME
Businesses listed on Google near Portland, ME. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
M & Son Construction
4.8(75 reviews)
980 Forest Ave #101, Portland, ME 04103
Southers Construction
4.8(68 reviews)
94 Auburn St Ste 205, Portland, ME 04103
Archadeck of Central Maine
4.8(65 reviews)
1506 State St Ste 205, Veazie, ME 04401
Soler Construction
5.0(16 reviews)
190 Pine St, Portland, ME 04102
BrightBuilt Home
4.5(17 reviews)
95 Exchange St, Portland, ME 04101
Mindful Building LLC
5.0(8 reviews)
Route 1, Box 66704, Falmouth, ME 04105