Average Cost of a Screened-In Porch in Maryland (2026): Real Prices from a Licensed Contractor
By Anton Sergeev, Owner — MHIC #113057
The average cost of a screened-in porch in Maryland in 2026 is $22,000 to $45,000 for a new build, with most homeowners in Anne Arundel and Howard Counties spending around $32,000 for a 200–300 sq ft porch with pressure-treated framing, a shed or gable roof, and quality screen and door hardware. Converting an existing roofed porch runs much less — typically $4,000 to $10,000. Premium builds with composite decking, vaulted tongue-and-groove ceilings, and EZE-Breeze panels can run $55,000 to $80,000+.
"Screened porch" covers a wide range of projects, and the price range reflects that. A basic enclosure over an existing concrete patio is a very different project from a new ground-up build with a gable roof and custom screen doors. Both are "screened porches." The price difference between them can be $30,000.
Below is a straight breakdown of what drives cost in the Anne Arundel and Howard County market, what you can expect to pay at different project scales and sizes, and where the money actually goes. These numbers come from real bids and built projects in 2026 — not contractor-marketplace estimates.
How Much Does a Screened-In Porch Cost in Maryland by Project Type?
| Project type | Typical cost (Anne Arundel + Howard) | What's included |
|---|---|---|
| Converting an existing roofed porch | $4,000 – $10,000 | Adding screens, door, trim, minor electrical. Existing roof and floor stay. |
| Basic enclosure over existing slab | $15,000 – $25,000 | New roof + walls over existing concrete patio. PT framing, basic finishes. |
| Standard new build, PT frame, shed roof | $25,000 – $40,000 | Ground-up. PT framing, simple roof, painted ceiling, basic electrical. |
| Mid-tier new build, gable roof, composite decking | $38,000 – $58,000 | Composite floor, vaulted or T&G ceiling, ceiling fan, recessed lighting. |
| Premium build with EZE-Breeze or custom details | $55,000 – $80,000+ | Three-season vinyl glazed panels, all-aluminum railings, premium finishes, full electrical package. |
These are contractor-installed, permitted project costs in the current Anne Arundel and Howard County market — not DIY estimates, not kit prices from a home center.
You'll see higher numbers from design-build firms in Bethesda and Ellicott City — Cornerstone, Design Builders, and similar firms quote $40,000 to $150,000+ for the same scopes. That's not because the materials cost more. It's overhead: those firms run showrooms, in-house designers, project managers, and full marketing departments. As an owner-operator MHIC-licensed contractor I run about 15–25% lower on the same scope of work, with the trade-off being a smaller schedule of available start dates. If you're getting quotes that span a $30,000 range for what sounds like the same project, the gap is almost always overhead — not quality.
Average Cost of a Screened-In Porch by Size
Size is the most straightforward cost driver, but it's not perfectly linear — a 400 sq ft porch doesn't cost twice as much as a 200 sq ft porch because permitting, mobilization, and roof tie-in are shared fixed costs. Here are typical Maryland prices for a standard new build (PT framing, shed or simple gable roof, quality screen system).
| Porch size | Square footage | Standard build | Mid-tier build (composite, vaulted ceiling) |
|---|---|---|---|
| 10×10 | 100 sq ft | $15,000 – $22,000 | $22,000 – $30,000 |
| 12×12 | 144 sq ft | $18,000 – $26,000 | $26,000 – $36,000 |
| 12×16 | 192 sq ft | $22,000 – $32,000 | $32,000 – $44,000 |
| 14×16 | 224 sq ft | $25,000 – $35,000 | $36,000 – $48,000 |
| 14×20 | 280 sq ft | $30,000 – $42,000 | $42,000 – $58,000 |
| 16×20 | 320 sq ft | $34,000 – $46,000 | $48,000 – $65,000 |
| 20×20 | 400 sq ft | $42,000 – $58,000 | $60,000 – $80,000+ |
The sweet spot for most Anne Arundel and Howard County homes is 12×16 to 14×20 — large enough to comfortably fit a dining table or seating group with a TV, small enough to avoid major engineering and roof-pitch issues.
Cost per Square Foot for a Screened-In Porch in Maryland
Screened porches in Maryland run $120 to $225 per square foot for a new build, with most projects landing around $160/sq ft for a standard build and $210/sq ft for a mid-tier composite build. Conversion of an existing roofed porch runs much less — $10 to $30 per square foot depending on how much electrical and structural work is involved.
| Build tier | Cost per sq ft |
|---|---|
| Convert existing roofed porch (screens + door only) | $10 – $30 |
| Basic new build (PT frame, shed roof, painted ceiling) | $120 – $160 |
| Mid-tier new build (composite, gable roof, vaulted ceiling) | $160 – $210 |
| Premium build (custom, EZE-Breeze, aluminum railings) | $210 – $275+ |
Smaller porches often cost more per square foot because fixed costs (permits, mobilization, the roof tie-in detail) don't scale down proportionally. A 100 sq ft porch isn't half the cost of a 200 sq ft one.
What Drives the Cost of a Screened Porch?
Five factors move the number more than anything else.
1. Foundation and floor system
If you have a solid, level existing concrete patio in the right location, that's the lowest-cost starting point — you're building up from something that's already there. If the slab is cracked, unlevel, or in the wrong spot, you're either repairing it or pouring new concrete, which adds $3,000–$8,000 depending on size and site conditions.
A raised deck frame instead of a slab adds cost but gives you more flexibility on sloped lots and allows for drainage beneath the structure. Expect to add $8,000–$15,000 over a slab-based build for a comparable footprint. For deck framing specifics see my Maryland deck building cost guide — the framing on a screened porch is essentially a deck with a roof on top, and the framing cost portion is similar.
2. Roof structure and complexity
A simple shed roof — sloping away from the house in one direction — is the most cost-effective option. A gable roof that peaks in the middle adds framing complexity. A hip roof is more involved still. Beyond shape, the roof material matters.
| Roof type | Typical added cost vs. shed roof |
|---|---|
| Shed roof (single slope) | baseline |
| Gable roof | +$2,500 – $5,000 |
| Hip roof | +$4,500 – $8,000 |
| Cathedral / vaulted gable with structural ridge | +$5,000 – $10,000 |
Roof material is a separate line item:
| Roof material | Cost differential vs. architectural shingles |
|---|---|
| Architectural shingles (match house) | baseline |
| 3-tab shingles | -$500 – $1,500 |
| Standing seam metal | +$3,000 – $7,000 |
| Polycarbonate transparent panels | +$1,500 – $4,000 |
Roof structure is also where engineering sometimes gets required. If the porch is large, if the roof load transfers to an existing deck frame, or if Anne Arundel or Howard County requires stamped drawings, you'll have engineering costs on top of construction — typically $800–$2,500.
3. Decking and railing materials
| Decking type | Cost per sq ft (material + labor) |
|---|---|
| Pressure-treated pine | $12 – $22 |
| Standard composite (Trex Enhance, TimberTech Pro) | $25 – $40 |
| Premium composite or PVC (Trex Transcend, Azek, TimberTech AZEK) | $40 – $65 |
| Tropical hardwood (ipe, mahogany) | $45 – $75 |
| Tile or stone on a slab foundation | $15 – $40 |
| Railing type | Cost per linear foot installed |
|---|---|
| Pressure-treated wood rail with wood balusters | $30 – $55 |
| PT wood rail with aluminum balusters | $55 – $85 |
| Composite rail with aluminum balusters | $75 – $110 |
| All-aluminum rail system | $90 – $140 |
| Cable rail | $130 – $200 |
For most mid-tier builds, composite decking and a composite-with-aluminum-baluster railing is the right balance of cost, durability, and resale appeal.
4. Screen and door system
This is the area where I see the most short-term thinking on competing bids. Standard fiberglass screen and vinyl-framed doors are the cheapest option. They're also the most likely to need replacement within a few years — which is why I don't use them.
| Screen system | Typical cost (for a 200–300 sq ft porch) |
|---|---|
| Fiberglass screen + vinyl-frame door (builder grade) | $1,200 – $2,500 |
| Aluminum screen + aluminum-frame door | $1,800 – $3,500 |
| Super Screen vinyl-coated polyester + aluminum door (my standard) | $2,200 – $4,000 |
| Pet-resistant heavy-duty screen | $2,800 – $5,000 |
| EZE-Breeze vinyl glazed panel system (three-season conversion) | $4,500 – $10,000 |
| Motorized retractable screens (Phantom, Genius) | $8,000 – $18,000 |
PRG installs Super Screen vinyl-coated polyester mesh and aluminum-framed screen doors on every porch build. The material cost difference over a standard fiberglass-and-vinyl setup is a few hundred dollars on a typical project. The performance difference over a 10-year horizon is significant — you're not re-screening, and your doors aren't sagging.
EZE-Breeze vinyl glazed panels turn a screened porch into a three-season space by adding clear flexible panels that slide up to expose the screen in summer and slide down to seal against rain and cold in shoulder season. Plan for an additional $4,500–$10,000 depending on the number of openings.
5. Electrical and finish level
Electrical is worth calling out specifically because running a dedicated circuit during the build is far cheaper than adding it after the fact.
| Electrical item | Installed cost |
|---|---|
| Dedicated 20A circuit from panel | $400 – $900 |
| Ceiling fan with light kit and switch | $350 – $700 |
| Recessed can lights (per can, wet-rated for porches) | $150 – $300 |
| Wall sconces (exterior-rated) | $200 – $450 each |
| GFCI outlets (per outlet) | $150 – $250 |
| Outdoor TV-rated outlet with low-voltage rough-in | $300 – $600 |
| Panel upgrade from 100A to 200A (if required) | $1,800 – $3,500 |
| Outdoor ceiling-mounted infrared heater | $600 – $1,500 each |
| Outdoor speakers, in-ceiling, pair | $400 – $1,200 |
Budget $1,500–$4,000 for a typical electrical package: one circuit, one ceiling fan with light, two to four recessed cans, and one or two outlets. Premium packages with TVs, speakers, heaters, and multiple zones can run $5,000–$10,000+.
For ceiling finishes:
| Ceiling type | Typical added cost vs. painted plywood |
|---|---|
| Painted plywood or simple soffit (baseline) | baseline |
| Painted T1-11 | +$300 – $700 |
| Tongue-and-groove pine (painted or stained) | +$1,200 – $3,000 |
| Tongue-and-groove cedar | +$2,000 – $4,500 |
| PVC bead-board (low-maintenance) | +$1,500 – $3,500 |
| Stained beam-and-tongue-and-groove vaulted (premium) | +$3,500 – $7,500 |
Permits, Inspections, and Engineering Costs in Maryland
Screened porches almost always require permits in Anne Arundel and Howard Counties because they involve foundation work, framing, roofing, and electrical.
Anne Arundel County permit fees for a typical residential screened porch run $150–$500 for the building permit, plus $50–$150 each for electrical and (if applicable) plumbing sub-permits. Plan-review fees on stamped drawings add another $100–$300 depending on project value. See my Anne Arundel County remodeling permits guide for the full process.
Howard County permit fees for a screened porch run $200–$600 for the building permit, with electrical sub-permits in the $60–$150 range. Howard County requires stamped engineering drawings for any structure over a certain footprint or load case — common triggers are large footprints, ledger attachment to existing structures, or unusual roof spans. See my Howard County remodeling permits guide for current fees.
When engineering is required, stamped drawings typically cost $800–$2,500 depending on complexity. This is a one-time cost paid to a Maryland-licensed structural engineer.
The contractor you hire should be MHIC-licensed — that's the Maryland Home Improvement Commission. PRG Home Improvement LLC is MHIC #113057. Verify any contractor's license in the MHIC license database before signing anything — see how to hire a licensed contractor in Maryland for the full vetting checklist.
Hidden Costs and Common Surprises on Screened Porch Projects
This is the section the marketplace sites and design-build firms don't write, because they're not the ones discovering it on demo day. After building porches across Anne Arundel and Howard Counties, here's what regularly shows up:
| Surprise | Typical added cost |
|---|---|
| Existing deck frame not built to current code (insufficient joist size, no hurricane ties, undersized footings) | $2,500 – $8,000 to bring to code |
| Post footings not deep enough for current 30" frost depth (Maryland code) | $500 – $1,200 per post to redo |
| Rotted ledger board behind house siding or missing ledger flashing | $1,500 – $4,000 to repair and properly flash |
| Existing roof flashing tie-in must be cut into existing roofline | $1,500 – $3,500 |
| Soft fascia or rotted sheathing where roof meets house | $400 – $1,500 |
| Inadequate electrical panel capacity for new circuits | $1,800 – $3,500 to upgrade panel |
| HOA architectural review required (some Crofton, Severna Park, Clarksville neighborhoods) | $0 – $500 + 2–8 weeks delay |
| Site grading or drainage issues requiring french drain or swale | $1,500 – $4,500 |
| Existing concrete slab won't pass inspection for new load (thickness, rebar, condition) | $3,000 – $7,000 to demo and re-pour |
| Septic field setback requirement (rural Anne Arundel and Howard properties) | $0 – $5,000+ depending on options |
A good contractor builds a 10–15% contingency into your budget for exactly these surprises. If your estimate is $35,000, plan for $40,000 in cash available. Every contract I write defines the change-order process up front so if something shows up that wasn't visible at the estimate, you see the cost, you approve it, and the work moves forward.
Screened Porch vs. Deck vs. Sunroom vs. Covered Patio: Cost Comparison
A lot of homeowners ask which outdoor living addition is the right call. Here's how the options compare in the Anne Arundel and Howard County market for a 200 sq ft footprint.
| Addition type | Typical cost | Use season | Adds heated/cooled square footage? | Best for |
|---|---|---|---|---|
| Open deck | $8,000 – $20,000 | Spring–fall | No | Budget, simple grilling and seating |
| Covered patio (roof only, no screens) | $15,000 – $30,000 | Spring–fall, light rain | No | Outdoor kitchen, shade, rain protection |
| Screened-in porch | $22,000 – $45,000 | Spring–fall, all weather (bugs out) | No | Bug-free outdoor living, the Maryland sweet spot |
| Three-season room (EZE-Breeze or similar) | $35,000 – $60,000 | Late spring–early fall + shoulder months | Marginally | Extends usable season by 6–8 weeks |
| Sunroom (fully enclosed, HVAC, insulated glass) | $60,000 – $130,000+ | Year-round | Yes | Full year-round addition, counts as living area |
| Three-season to four-season conversion (later add-on) | +$25,000 – $50,000 | n/a | Yes | If you start with a screened porch and want to upgrade later |
For most Maryland homeowners, the screened porch is the sweet spot — usable from mid-April through October, keeps mosquitoes and yellow jackets out, costs a fraction of a sunroom, and adds real resale appeal without the engineering complexity of a heated addition. If you want year-round use, plan for a sunroom from the start — converting later costs significantly more than building it that way originally.
Does a Screened Porch Add Value in Maryland?
Yes — consistently, in this market. Outdoor living additions perform well at resale in Anne Arundel and Howard County because buyers understand what they're buying: usable outdoor space in a climate where bugs and heat make open decks uncomfortable for months at a time.
The 2025 Cost vs. Value Report from Remodeling Magazine and Zonda tracks outdoor living additions and shows screened porches and three-season rooms recovering 50–65% of cost at resale on a national average, with mid-Atlantic markets generally tracking near the higher end of that range. Well-designed porches that match the home's architecture and roofline recover more than additions that look bolted-on.
A well-built screened porch also photographs well and shows well. In a market where most homes compete on square footage and kitchen finishes, a properly built porch is a feature buyers remember.
A rough rule of thumb for the Anne Arundel and Howard County market:
| Project cost | Typical resale value added | Effective ROI |
|---|---|---|
| $25,000 standard build | $15,000 – $18,000 | 60–72% |
| $40,000 mid-tier build | $24,000 – $28,000 | 60–70% |
| $65,000 premium build | $35,000 – $42,000 | 54–65% |
Higher-end builds typically recover a lower percentage of cost — luxury features above neighborhood comp expectations are the part buyers won't pay full price for. That said, almost every well-built screened porch outperforms an open deck on both lifestyle value and resale appeal.
How Long Does It Take to Build a Screened Porch in Maryland?
From the first conversation to a finished porch, plan for 8 to 16 weeks total in Anne Arundel and Howard Counties. Here's how that breaks down:
| Phase | Typical duration |
|---|---|
| Initial consultation and estimate | 1–2 weeks |
| Design refinement and material selections | 1–3 weeks |
| Permit application and review | 2–6 weeks (Anne Arundel 2–4, Howard 3–6) |
| HOA architectural review (if required) | 2–8 weeks (parallel with permits) |
| Material lead times (composite decking, custom doors) | 1–4 weeks (parallel) |
| Site work and foundation | 3–7 days |
| Framing and roof | 5–10 days |
| Roofing, flashing, electrical rough-in | 3–6 days |
| Ceiling, screen installation, doors, finish trim | 5–10 days |
| Final inspection and punch list | 1–2 days |
Most builds, from breaking ground to handing over keys, take 3–6 weeks of active construction time. If you start the conversation in early spring, you can typically have a finished porch by early summer. If you start in late summer, the inspection schedule often pushes completion into October.
How to Save Money on a Screened Porch in Maryland
- Convert an existing roofed porch instead of building new. If you have a covered porch already, screening it in is a fraction of the cost of a new build — $4,000 to $10,000 versus $25,000+ for a comparable footprint.
- Build over an existing slab. If you have a sound concrete patio in the right location, you save the foundation cost.
- Pick a shed roof, not a gable or hip. $2,500–$8,000 in savings on a typical project, with no compromise on function.
- Use composite where it shows, PT where it doesn't. Composite floor and railings, PT framing. You get the visible durability without the cost of fully composite framing (which has no real benefit since framing isn't exposed to weather or UV).
- Skip premium screen upgrades unless you have pets or specific needs. Super Screen and aluminum doors are worth it; motorized retractable screens at $8K–$18K are not for most homes.
- Hire an owner-operator licensed contractor for mid-size projects. Design-build firms add 15–25% overhead on the same scope of work. For a 200–300 sq ft porch in Anne Arundel or Howard County, that's a real number.
- Don't skimp on the roof tie-in or the screen system. This is the wrong place to save — both fail expensively when done cheaply.
How to Finance a Screened Porch in Maryland
Most Maryland homeowners pay for a screened porch through one of three routes:
- Home equity line of credit (HELOC). Usually the cheapest financing for projects in this range. Interest is variable but typically lower than personal loans, and interest may be tax-deductible if used for home improvement (consult your tax preparer).
- Cash-out refinance. Worth considering if current mortgage rates are at or below your existing rate; otherwise a HELOC is usually cheaper.
- Home improvement loan (unsecured personal loan). Faster to close than a HELOC, fixed rate, but higher interest. Good option if you don't have equity yet.
PRG doesn't offer in-house financing, but most clients pay by check or ACH on a milestone schedule: deposit, mid-project, and final upon completion. I can provide detailed estimates suitable for loan applications.
Frequently Asked Questions
What is the average cost of a screened-in porch in Maryland?
The average cost is $22,000 to $45,000 for a new build in Anne Arundel and Howard Counties, with most homeowners spending around $32,000 for a 200–300 sq ft porch. Converting an existing roofed porch costs much less — typically $4,000 to $10,000.
Can I build a screened porch for under $20,000 in Maryland?
Yes, but only for a small porch (under 150 sq ft) with basic finishes, or for converting an existing roofed porch. A full new build of typical size with proper framing, roofing, and quality screen system will start around $22,000 in the current Maryland market.
How much does it cost to screen in an existing porch in Maryland?
Screening in an existing roofed porch in Maryland typically costs $4,000 to $10,000 depending on size, screen system quality, and door installation. The roof and framing must already meet current code — if reinforcement is required, costs go up.
Why are screened porch quotes so different between contractors?
Scope varies. One contractor may be quoting over your existing slab; another may be including a new concrete pour. One may be using fiberglass screen and vinyl doors; another is pricing aluminum doors and Super Screen mesh. Design-build firms also carry 15–25% more overhead than owner-operator contractors. Before comparing quotes, confirm exactly what's included — foundation, permits, screen system, electrical, and finishing details. A lower quote is often a narrower scope.
Is a screened porch cheaper than a sunroom?
Significantly. A sunroom is a fully enclosed, climate-controlled addition with insulated glass panels and HVAC integration. Expect $60,000–$130,000+ for a quality sunroom in this market. A screened porch is open to the air and unheated — that's what makes it more affordable and also what makes it a three-season space rather than four.
Do I need a permit to build a screened porch in Maryland?
Yes, in nearly all cases. Both Anne Arundel and Howard Counties require permits for any covered structure attached to a house, including the foundation, framing, roofing, and electrical work. Cosmetic-only conversions (screen and door over a fully built and inspected existing covered porch) sometimes don't require a building permit but still require electrical sub-permits if circuits are added.
How long does it take to build a screened porch in Maryland?
Plan for 8 to 16 weeks total from the first conversation to a finished porch — including permits, HOA review (if applicable), material lead times, and construction. Active construction time is typically 3 to 6 weeks.
Does a screened porch add value to a Maryland home?
Yes. Outdoor living additions recover roughly 50–65% of cost at resale nationally per the 2025 Cost vs. Value Report, with the mid-Atlantic region generally tracking near the high end of that range. Well-built porches that match the home's architecture recover more than additions that look bolted-on.
What's the most common thing homeowners wish they'd done differently?
Built it bigger. Almost universally. The second most common: added electrical from the start instead of retrofitting it. The third: chose a vaulted ceiling over a flat one.
What's the difference between a screened porch and a three-season room?
A screened porch is open to the air with screen walls — used spring through fall when temperatures are comfortable. A three-season room adds vinyl glazed panels (like EZE-Breeze) that slide closed to seal out wind, rain, and cold, extending the usable season by 6–8 weeks on either end. A four-season room (sunroom) is fully enclosed and HVAC-heated for year-round use.
Get a Personalized Screened Porch Estimate
Every porch is different. The cost depends on your specific lot, your existing structures, the layout you want, and the finish level. The only way to know what a screened porch costs for your home is to have someone look at it.
- For a rough range based on your selections, use my free estimate calculator.
- For a detailed line-item quote, schedule a free in-home consultation. I come out personally, walk the site, check existing structures, and write the estimate myself.
I build screened porches across Anne Arundel and Howard Counties — see my decks and porches service page for portfolio and details. Service areas include Gambrills, Crofton, Odenton, Severna Park, Annapolis, Davidsonville, Millersville, Ellicott City, Columbia, Clarksville, and surrounding areas.
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