Cost of sunroom addition

introduction

Sunroom addition costs typically range from $20,000 to $100,000, depending on design complexity, materials, and location. Here is a detailed breakdown of the factors influencing pricing:

The type of sun room determines the basic cost (40% -60% of the overall budget)

1.According to their functions, sunrooms can be classified into three-season sunrooms, four-season sunrooms and sun bathrooms

（1）Three season sunroom:

Average cost of a three-season sunroom runs approximately $20,000–$40,000, with most homeowners spending around $25,000–$30,000. Factors such as size, foundation work, insulation level, and local labor rates will affect final price.

（2）Four Seasons Sunroom:

Average cost of a four-season sunroom ranges from $35,000 to $65,000, with most homeowners spending around $45,000–$55,000, depending on size, insulation, foundation work, and local labor rates.

（3）Glass solarium

Budget-friendly Glass solarium installations typically cost between $35,000 and $65,000, influenced by room dimensions, insulation quality, foundation requirements, and local labor rates.

2.Classification by manufacturing

（1）Prefabricated sun room (DIY preferred):

$5k-$15k, fast construction time, suitable for small space. The selectivity is relatively small in valence It's more affordable.

（2）Custom sun room:

$35K, suitable for more than 215 square feet. According to your own needs, The price is relatively more expensive.

Material cost comparison (2024 US market price)

1.Frame materials for the sunroom

（1）sunroom aluminum frame

$25- $45 per square foot, with a service life of about 20-30 years, and an average maintenance life of about $120 per year. Aluminum sun room, with high strength, corrosion resistance, low maintenance and other characteristics, has become a popular choice for modern home and commercial buildings. Its energy saving and prefabricated construction advantages further reduce the long-term use cost, which is suitable for the pursuit of safety, environmental protection and practical scenarios.

（2）Wooden:

$35- $60 per square foot, service life of about 40-50 years, and average maintenance of about $300 per year. Wooden sun rooms are suitable for families with natural styles and adequate budgets, but need to weigh their high maintenance costs and durability constraints. Use anticorrosive wood or composite structure (such as aluminum wood composite).

（3）Vinyl:

$20- $35 per square foot, life approximately 15-20 years, average maintenance approximately $80 per year. Suitable for the pursuit of environmental protection, energy saving, low maintenance needs, especially for rainy, wet or strong ultraviolet areas.

2.sunroom wall materials

（1）The common glass materials used in glass sunrooms are tempered glass and dynamic glass.

• Tempered glass: 15−30/sq.ft (recommended for more than 8mm thickness), wind and pressure resistance has a certain heat insulation effect, green environmental protection.
• Dynamic glass: 50−80/sq.ft (adjustable transmittance black technology)

（2） PC endurance plate sunroom

• It adopts polycarbonate (PC) panels, providing a durable, lightweight and impact-resistant alternative to traditional glass for solariums.
• PC endurance plate ：8−15/sq.ft (impact resistance increased by 300%)

Hidden cost warning (90% of owners will ignore)

1.building permit

• Application fee: $400-$1200 (state variation).
• processing cycle: California average 23 days vs Texas only 7 days.
• Pit Avoidance Guide: For areas larger than 200 sq. ft, an application must be submitted.

2.Transportation cost

• Transportation of prefabricated components: $500 - $2,000 (an additional $1.2 per mile for every 100 miles exceeded).
• Glass special packaging: + 15%-20% base freight.

3.electrical system

• Base wiring: around $1,500-$3,500.
• Intelligent control system: $2,000 starting from (Voice control / automatic sun shade curtain).

Labor costs (they may vary between regions)

Ordinary workers: about $20-$30/ hour 2.Certified engineer: about $30-$75/ hour

Contractor (more comparison is recommended, local is preferred)

If you are not an experienced builder yourself, it is wise to hire an experienced contractor to build your sunroom —— or take on the most challenging and technical part of the process. Excellent contractors can get things going, and most importantly, they will ensure that your sunroom is well structured. Save tips: Choose a total contract (20-30% off hourly billing). Real case: A 12x16-foot sun room in Houston, Texas, where labor costs fell from 38% to 27%.

Other additional costs (depending on the selected brand)

1.Windows and door: $3,500-around $15,000. 2.Flooring: The average price range is $2.0-$30.0 / square foot.

• Economy (color steel plate, LVP): $2-$4 / square foot.
• Middle and high end (tempered glass, engineering composite): $9.3-30.0 / square foot.

2.Customized equipment: according to the selected equipment, such as temperature control and fresh air cycle.

Late maintenance costs

Glass cleaning: about $150- $300 2.Sealant replacement: around $200- $450 3.Drainage system: around $80- $200

Small tips on saving money

The third season room can be upgraded to “3.5 season”: add $1,200 magnetic suction insulation curtain. 2.Four seasons room recommended floor radiant heating: 25% energy saving than the traditional radiator (ASHRAE data). 3. Start construction in off-season (November-February): 10% -20% less than other.

Summary

If you are planning to build a sunroom, expand an existing one, or purchase a wholesale set of sunroom components, please feel free to contact us. We can design the most suitable sunroom for your home.