How much does a 4-season sunroom cost in Broomfield County?

A 200 square foot 4-season sunroom in Broomfield County costs between $26,500 and $58,300, with an average of $40,280. This reflects the local 1.06x labor adjustment based on carpenter wages of $32.76 per hour in the Denver metro area.

Is a 3-season or 4-season sunroom better for Colorado's climate?

Broomfield County's IECC zone 5B (Cold-Dry) classification favors 4-season sunrooms for year-round use. While 3-season rooms cost $15,900 to $37,100, the $10,000+ premium for a 4-season room with proper R-20 wall insulation provides comfort during cold winters and reduces long-term heating costs at $0.168 per kWh.

Should I upgrade to impact-resistant glass for my sunroom?

Yes, strongly consider it. Broomfield County's hail risk score of 91.41 (Relatively Moderate) is among the highest hazard categories locally. Impact-resistant glazing adds $2,000 to $4,000 to your project but protects against costly glass replacement and potential interior damage from hailstorms.

How much will a sunroom increase my property taxes?

Property taxes in Broomfield County average $3,888 annually on a median home value of $631,600. A $40,000 sunroom addition (6% of home value) would proportionally increase your assessed value, though actual tax impact depends on your specific mill levy and any homestead exemptions.

What insulation does my sunroom need in climate zone 5B?

For a 4-season sunroom in IECC zone 5B, energy codes recommend R-20 wall insulation and R-38 ceiling insulation. Windows should have a U-factor of 0.30 or lower. These specifications help manage heating costs given Colorado's $0.168 per kWh electricity rates.

Can I add solar panels to my sunroom roof?

Broomfield County receives excellent solar exposure with 5.47 peak sun hours daily. A 6kW system here produces 9,193 kWh annually. While sunroom roofs often have suboptimal pitch, installing electrical conduit during construction ($200-500) makes future solar integration far easier than retrofitting.

What financing options work best for sunrooms in this price range?

With mortgage rates at 6.36%, home equity products offer the lowest rates for sunrooms averaging $23,320 to $40,280. HELOCs provide flexibility for phased builds. For screen enclosures under $15,000, contractor promotional financing (often 0% for 12-18 months) can work if paid off before interest kicks in.

REGIONAL COST GUIDE · Broomfield County, CO

How Much Does a Sunroom Cost in Broomfield County, CO?

Sunroom installation in Broomfield County costs $23,320 to $40,280 on average. Local labor rates, climate zone 5B requirements, and financing options explained.

Cost range $15,900 – $37,100

Average $23,320

Updated May 17, 2026

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COST BREAKDOWN

What homeowners in Broomfield County actually pay.

Local market ranges built from regional labor, materials, and permitting data — not national averages.

3-Season Sunroom (200 sq ft)

$15,900 Avg: $23,320 $37,100

4-Season Sunroom (200 sq ft)

$26,500 Avg: $40,280 $58,300

Screen Porch Enclosure (200 sq ft)

$5,300 Avg: $9,540 $15,900

National avg $22,000 × 1.06x local adjustment = $23,320

Why Broomfield County prices look like this.

Scheduling your sunroom project during fall or early winter can save 10-15% on labor, since contractors in the Denver metro see fewer requests after outdoor construction season ends. Broomfield County homeowners invest in sunrooms to extend living space in a region where median home values reach $631,600 (3.66x the national average). A 3-season sunroom runs $15,900 to $37,100, while a fully insulated 4-season sunroom costs $26,500 to $58,300 for a 200 square foot addition. Screen porch enclosures offer a budget-friendly alternative at $5,300 to $15,900. These local estimates reflect a 1.06x adjustment over national averages, driven by carpenter wages of $32.76 per hour in the Denver-Aurora-Lakewood metro area.

Labor Costs for Sunroom Installation in Broomfield County

Carpenters in the Denver-Aurora-Lakewood metro earn an hourly mean wage of $32.76, translating to $68,130 annually. This rate sits about 11% above the national carpenter average of $29.58 per hour, which directly impacts your sunroom quote. The metro area employs approximately 7,250 carpenters (2025 OEWS data), providing a healthy pool of qualified installers. Labor accounts for roughly 40-50% of total sunroom costs, with the remainder covering materials like glass panels, framing, roofing, and electrical work. For a 4-season sunroom, expect labor charges between $10,600 and $23,300 based on complexity. Obtaining three or more quotes helps ensure competitive pricing, particularly for custom designs requiring specialized glazing or structural modifications.

Weather Risks Affecting Sunroom Durability

Broomfield County's overall FEMA risk score of 34.70 (Very Low) masks several elevated hazards relevant to sunroom construction. Hail risk scores 91.41 (Relatively Moderate), making impact-resistant glass a worthwhile upgrade that adds $2,000 to $4,000 to your project. Lightning risk reaches 86.23 (Relatively High), so proper grounding and surge protection matter for any electrical work in your sunroom. Winter weather scores 74.70 (Relatively Moderate), reinforcing the need for adequate snow load capacity in roof designs. Wildfire risk at 72.36 (Relatively Low) still warrants ember-resistant vents if your property borders open space. Flood and tornado risks remain minimal at 33.08 and 61.93 respectively.

Climate Zone 5B Requirements for Sunrooms

Broomfield County falls within IECC climate zone 5B (Cold-Dry), part of the DOE's north HVAC region. This classification requires higher insulation standards for 4-season sunrooms to maintain year-round comfort. The "B" moisture designation indicates dry conditions, reducing concerns about humidity-related condensation on glass panels. For zone 5, energy codes recommend minimum R-20 wall insulation and R-38 ceiling insulation in conditioned spaces. Low-E glass with a U-factor of 0.30 or lower performs well here, balancing winter heat retention with summer solar control. The region's 5.47 peak sun hours daily (NREL data) make south-facing sunrooms effective passive solar collectors during colder months, potentially offsetting heating costs if properly designed with thermal mass flooring.

Energy Costs and Efficiency Considerations

Colorado residential electricity costs $0.168 per kWh as of February 2026. A poorly insulated 200 square foot sunroom can add $50 to $150 monthly to heating and cooling bills, while a well-designed 4-season room with zone 5B-compliant insulation may add only $15 to $40. Broomfield County receives strong solar exposure at 5.47 kWh/m² daily (direct normal irradiance reaches 5.68 kWh/m²/day). This makes solar-ready electrical rough-ins a smart addition during construction. A 6kW rooftop system in this area produces approximately 9,193 kWh annually (17.5% capacity factor), enough to offset sunroom energy use and more. Installing conduit during the sunroom build costs far less than retrofitting later.

Financing Your Sunroom Project

With 30-year mortgage rates at 6.36% (as of May 14, 2026), home equity options remain a popular choice for financing sunrooms. On a median-value Broomfield County home of $631,600, a $40,000 4-season sunroom represents roughly 6% of home value. Property taxes here average $3,888 annually, and a permitted sunroom addition will increase assessed value. Home equity lines of credit (HELOCs) offer flexibility for phased construction, while cash-out refinancing locks in fixed payments. Some contractors offer 0% promotional financing for 12-18 months, useful if you can pay off the balance before interest accrues. Personal loans work for smaller screen porch projects under $15,000 but carry higher rates than secured options.

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FREQUENTLY ASKED · 07

Questions buyers ask about sunrooms and enclosures in Broomfield County.

Short answers to the most common things we hear about local pricing, scope, and timing.

How much does a 4-season sunroom cost in Broomfield County?

A 200 square foot 4-season sunroom in Broomfield County costs between $26,500 and $58,300, with an average of $40,280. This reflects the local 1.06x labor adjustment based on carpenter wages of $32.76 per hour in the Denver metro area.
Is a 3-season or 4-season sunroom better for Colorado's climate?

Broomfield County's IECC zone 5B (Cold-Dry) classification favors 4-season sunrooms for year-round use. While 3-season rooms cost $15,900 to $37,100, the $10,000+ premium for a 4-season room with proper R-20 wall insulation provides comfort during cold winters and reduces long-term heating costs at $0.168 per kWh.
Should I upgrade to impact-resistant glass for my sunroom?

Yes, strongly consider it. Broomfield County's hail risk score of 91.41 (Relatively Moderate) is among the highest hazard categories locally. Impact-resistant glazing adds $2,000 to $4,000 to your project but protects against costly glass replacement and potential interior damage from hailstorms.
How much will a sunroom increase my property taxes?

Property taxes in Broomfield County average $3,888 annually on a median home value of $631,600. A $40,000 sunroom addition (6% of home value) would proportionally increase your assessed value, though actual tax impact depends on your specific mill levy and any homestead exemptions.
What insulation does my sunroom need in climate zone 5B?

For a 4-season sunroom in IECC zone 5B, energy codes recommend R-20 wall insulation and R-38 ceiling insulation. Windows should have a U-factor of 0.30 or lower. These specifications help manage heating costs given Colorado's $0.168 per kWh electricity rates.
Can I add solar panels to my sunroom roof?

Broomfield County receives excellent solar exposure with 5.47 peak sun hours daily. A 6kW system here produces 9,193 kWh annually. While sunroom roofs often have suboptimal pitch, installing electrical conduit during construction ($200-500) makes future solar integration far easier than retrofitting.
What financing options work best for sunrooms in this price range?

With mortgage rates at 6.36%, home equity products offer the lowest rates for sunrooms averaging $23,320 to $40,280. HELOCs provide flexibility for phased builds. For screen enclosures under $15,000, contractor promotional financing (often 0% for 12-18 months) can work if paid off before interest kicks in.

SOURCES · 08

How these numbers were built.

Cost estimates are derived from government data including the U.S. Census Bureau (ACS), Bureau of Labor Statistics (OEWS), FEMA National Risk Index, EIA energy data, IECC climate zone classifications, Federal Reserve (FRED), and HUD Fair Market Rents.