Build a sunroom that fits how you'll use it.
Compare 3-season and 4-season builds, see the styles, and understand the process — then we build it as a true addition, not a prefab kit.
3-season vs. 4-season: which is right for you?
The biggest decision is how much of the year you want to use the room. Here's how they compare.
| 3-Season Sunroom | 4-Season Sunroom | |
|---|---|---|
| Use | Spring through fall | Year-round, including winter |
| Insulation | Light or none | Fully insulated, thermal breaks |
| Heating & cooling | Not built for it | HVAC / mini-split integrated |
| Foundation | Existing slab/deck may work | True insulated foundation |
| Relative cost | Lower | Higher |
| Best for | Bright spring-fall lounging | A true added room you use daily |
Sunroom styles we build
Three-season
Bright and breezy for spring through fall.
Four-season
Insulated and heated for year-round use.
All-glass
Maximum light with full glass walls and roof.
Screen room
Airflow and views, without the bugs.
How we build your sunroom
Design & quote
On-site visit, measurements, and an honest estimate.
Permits
We file township permits and handle inspections.
Foundation & frame
Footings or slab, framing, and roof tie-in.
Glazing & finish
Windows, insulation, electrical, and finishes.
Looking for sunrooms in your town?
See our localized sunroom pages and town-specific builds across New Jersey: Sunrooms in New Jersey →
Sunroom cost, foundations & care
Common questions
What's the difference between a 3-season and 4-season sunroom?
A 3-season room is bright and comfortable spring through fall but isn’t built to be heated efficiently in deep winter. A 4-season sunroom is fully insulated with its own heating and cooling, so it’s comfortable year-round in NJ.
Are your sunrooms prefab kits?
No. We build sunrooms as true additions — matched rooflines, siding, and trim — so the room reads as part of your home, not a box clipped to the back.
Do sunrooms need a foundation and permit?
Yes. A sunroom is a permitted structural addition in NJ and needs a foundation. We handle the permits, foundation, and inspections.
Not sure which sunroom fits?
Tell us how you want to use the space and Adam will walk you through 3-season vs 4-season and the options — the on-site quote is free.
Request a Free Quote
