Sunrooms & Enclosed Porches
Three-season rooms, four-season sunrooms, screened porches, and glass-enclosed additions with proper structural framing, insulation, glass selection, and optional HVAC zoning — built for real Bergen County weather.
Three-Season & Four-Season Sunrooms
Sunroom additions cover a wide range: screened porches (insect-protected, open to outdoor temperatures), three-season rooms (windows for shoulder-season use), and four-season sunrooms (insulated, glazed, conditioned for year-round use). We frame, insulate, glass, and condition based on actual use.
- Screened porches with proper drainage
- Three-season rooms with operable windows
- Four-season insulated sunrooms with HVAC
- Low-E and insulated glass options
- Cathedral and standard ceiling configurations
- Tied into existing home with proper roof flashing
Serving Bergen County homeowners across Englewood, Tenafly, Fort Lee, Ridgewood, Paramus, Teaneck, Hackensack, Closter, Fair Lawn, and Bergenfield — plus every town in between.
Sunroom & Enclosed Porch Guides
Decisions that determine whether the project lasts and feels right.
Foundation Strategy
- An existing porch slab gets evaluated for thickness, frost protection, and level before it earns the right to carry walls and glass.
- New foundations go below frost line and tie to the house structure — the sunroom moves with the house or cracks against it.
- The ledger and tie-in details are flashed and sealed to wall-assembly standards; this joint outlives every season.
- Footing inspection of an existing slab is the go/no-go gate — building on an unrated pad rebuilds twice.
- Crawl or slab choice under new foundations follows utility routing and frost protection.
Planning a project like this? Get an estimate.
Glass System
- Double-pane low-E is the four-season floor spec; triple-pane earns its cost on north exposures and true winter rooms.
- Every pane is tempered safety glass at these sizes — code and common sense agree.
- Thermally broken frames keep the glass wall from becoming a condensation wall in January.
- Operable-window ratio decides the shoulder-season experience — fixed glass views; operable glass breathes.
- Solar-control coatings manage the south and west exposure that makes or breaks sunroom summers.
Planning a project like this? Get an estimate.
Roof System
- An insulated cathedral roof makes the room genuinely four-season and carries recessed lighting and a fan.
- Polycarbonate roofing floods the room with daylight at lower cost — brilliant in spring, needing shade strategy in July.
- A shed roof tied under the existing eave is the cleanest architectural join on most Bergen County colonials and capes.
- Skylight and clerestory options push light deeper into the adjacent house rooms — the sunroom lights more than itself.
- Roof insulation levels decide the January question — cathedral assemblies need real R-value, not framing-cavity leftovers.
Planning a project like this? Get an estimate.
HVAC & Electrical
- Mini-splits handle glass-heavy rooms better than stealing a register from the house system.
- Fan and lighting circuits use equipment rated for the enclosure type (3-season vs conditioned).
- Licensed trades size heat and power to sun load so summer and winter both work.
- Radiant floor under tile suits sunrooms — quiet warmth where glass walls make forced-air placement awkward.
- Shade integration (cellular, roller, or louvers) is climate control too — wired or manual, planned at design.
Planning a project like this? Get an estimate.
Permits & Code
- Heated, habitable sunrooms follow the addition permit path; 3-season rooms often have a lighter but still real code track.
- We classify the enclosure correctly with your town so you are not mid-build in the wrong permit category.
- Energy and egress rules apply when the room becomes year-round living space.
- The conditioned-vs-3-season classification decides the code package — honesty here prevents inspection surprises.
- Egress and smoke-detector rules follow if the room could ever serve as sleeping space.
Planning a project like this? Get an estimate.
Cost & Timeline Guide
- 3-season vs fully conditioned is the main price fork; glass systems and foundation type set the rest.
- HVAC integration, insulation, and roof structure separate a porch enclose from true year-round living space.
- Permits depend on heating and habitable use; multi-week builds after glass and pad lead times.
- Glass area drives both cost and comfort budgets — more glazing means more money twice (panels and conditioning).
- Porch conversions run 4–8 weeks; ground-up sunrooms 2–4 months with foundation and inspections.
Planning a project like this? Get an estimate.
Your Sunroom Process
Consultation
We walk the proposed location, discuss intended use (seasonal vs year-round), review setbacks and existing roof tie-in.
Scope & materials
Architect produces drawings if needed; glass and HVAC selections finalized; permits filed.
Build
Crew executes foundation, framing, glazing, roof tie-in, electrical, HVAC, finish.
Final walkthrough
Final walkthrough, glazing seal verification, punch-list closeout.
Glass Rooms Need Structure & Climate Truth
Sunrooms and enclosed porches succeed when foundation or deck structure, roof, and glazing match how you will use the room in January and July. Under-built floors and uninsulated roofs create rooms people abandon after one season.
We plan flashing at the house wall, threshold details, and electrical early. If the room will be heated, that is a different permit and insulation path than a three-season enclosure.
Compare enclosures and home additions when the goal is full living space. Request an estimate below with whether you need screen, three-season, or year-round use.
Frequently Asked Questions
For 2026 in Bergen County, screened porches run $20,000-$45,000. Three-season rooms run $40,000-$95,000. Four-season insulated sunrooms with HVAC run $80,000-$180,000+.
Three-season works for shoulder-season use (spring through fall). Four-season is fully insulated and conditioned for year-round use; costs more but is usable in winter.
Sometimes. We assess the existing foundation, footings, and structure for capacity. Often the existing slab or deck must be removed and replaced with proper footings.
Yes. Building, electrical, and (for four-season) HVAC permits all apply.
Yes. Bergen Restoration is a registered New Jersey Home Improvement Contractor (NJHIC# 13VH08865500) with commercial general liability and workers' compensation coverage. Documentation is available on request, and homeowners should verify credentials before hiring any contractor.
Insulated walls, roof, and floor plus real heating and cooling — built to living-space code. Three-season rooms skip conditioning and cost accordingly; honesty about which you want saves redesign.
Glass is the point and the thermal bill — high-performance glazing, orientation, and roof overhangs keep a glass room livable in July and January alike. Design does what glass alone can't.
Existing patios and decks get evaluated for frost-depth bearing — many sunrooms want new piers or foundation regardless of what sits there now. The floor's winter behavior is decided below it.
A doorway keeps the thermal envelope simple; an open connection makes the sunroom part of the conditioned house and raises the build spec. Both legitimate — pick with eyes open.
South glass loves winter and needs summer shading; east gives gentle mornings; west cooks evenings. Orientation is free design leverage before any material is chosen.
Vaulted tongue-and-groove is the classic; roof glazing adds drama and maintenance; flat ceilings integrate fans and recessed light easiest. Roof structure and budget sort the menu.
Part of our Home Additions service family, alongside Outdoor Enclosures.
Get Your Estimate
Reach us by phone or email and tell us about your sunroom or enclosed porch project. We will follow up with the next best step for your home.
Commercial general liability and workers’ compensation coverage. Documentation available on request.
Let's Talk About Your Project
Tell us what you have in mind — we'll follow up with a plan.