3 & 4 Season Rooms

Expertly crafted decks, pergolas, patios, and more—designed for those who demand the best. Serving Connecticut's elite homeowners with precision and care.

A green triangle is floating in the air on a white background.

Enjoy Your Outdoor Space Year-Round with a Custom-Built 3 or 4 Season Room

custom-built 3 or 4 season room allows you to experience the beauty of the outdoors in comfort, no matter the season. Whether you want a cozy sunroom for relaxation, an all-weather extension for entertaining, or a fully insulated space for year-round useOutdoor Space Builders delivers high-end, expertly crafted enclosed rooms designed for luxury and durability.

Unlike other contractors, we specialize in 
precision-built, weather-resistant 3 & 4 season rooms, using premium materials, alternative framing techniques, and high-end glass solutions to ensure lasting quality and energy efficiency.

For more information about our services, or to get a free quote, give us a call at (203) 715-7853  or contact us online.

What Sets Our 3 & 4 Season Rooms Apart?

  • Custom-Built for Comfort – Designed for year-round enjoyment
  • Premium Windows & Insulation – We use energy-efficient glass and weather-resistant materials
  • Seamless Home Integration – Built to match your existing architecture
  • Advanced Framing Options – Choose from traditional wood or alternative metal framing
  • Luxury Upgrades Available – Heated floors, custom lighting, and motorized screens

Things to Consider When Building a 3 or 4 Season Room in Connecticut

  • 3 Season vs. 4 Season Rooms – A 3 season room is enclosed but unheated, while a 4 season room is fully insulated for year-round use.
  • Material Selection – We use energy-efficient glass, composite framing, and insulated walls for comfort and durability.
  • Heating & Cooling – Radiant floor heating, ductless mini-split systems, or integrated HVAC solutions.
  • Permits & Regulations – Some towns require specific permits; we handle all approvals.

How Much Does a 3 or 4 Season Room Cost in Connecticut?

The cost depends on size, insulation level, material selection, and custom features. On average:



  • 3 Season Room (Basic Enclosure): $15,000–$30,000
  • 4 Season Room (Insulated & Climate-Controlled): $30,000–$60,000
  • Luxury Custom Sunroom with High-End Features: $60,000+


Additional features like 
heated floors, high-end glass systems, and retractable screens affect the final investment. Contact us for a personalized estimate.

Our 3 & 4 Season Room Construction Process

  1. Consultation & Design – We discuss your vision and recommend the best materials & features.
  2. Material & Insulation Selection – Choose from premium glass, insulated walls, and framing options.
  3. Planning & Permits – We ensure compliance with Connecticut’s building codes.
  4. Expert Construction – Built 100% by our in-house team, ensuring unmatched craftsmanship.
  5. Final Walkthrough & Quality Check – Ensuring everything meets your expectations before completion.

Why Choose Outdoor Space Builders for 3 & 4 Season Rooms in Connecticut?

  • In-House Craftsmanship – No subcontractors—just expert, highly trained professionals
  • Energy-Efficient Materials – We use high-performance glass, insulation, and framing solutions
  • Tailored Designs – We custom-build each project to seamlessly integrate with your home
  • Local Knowledge – We understand Connecticut’s climate, zoning laws, and permit requirements
  • 1-Year Workmanship Warranty – Plus, warranties on glass, framing, and insulation materials

3 & 4 Season Room FAQs

  • What’s the difference between a 3 season and a 4 season room?

    3 season rooms are enclosed but unheated, ideal for spring through fall, while 4 season rooms are fully insulated and climate-controlled for year-round use.

  • What are the best materials for a 4 season room?

    We recommend energy-efficient glass, insulated composite walls, and advanced framing options like PVC or metal framing for durability.

  • Do I need a permit to build a sunroom in Connecticut?

    Yes, most towns require permits, but we handle all necessary approvals for you.

Get a Free Estimate for a Custom 3 or 4 Season Room in Connecticut!

Extend your living space with a luxury 3 or 4 season room, designed for year-round comfort and stunning outdoor views. Contact Outdoor Space Builders today for a custom design consultation.

Request an Appointment

For more information about our services or to schedule an appointment, call us at (203) 715-7853 or complete the form below we’ll get back to you as soon as we can.

Request an Appointment

For more information about our services or to schedule an appointment, call us at (203) 715-7853 or complete the form below we’ll get back to you as soon as we can.

CONTACT US

For more information about our services or to schedule an appointment, call us at (203) 715-7853 or complete the form below we’ll get back to you as soon as we can.

Hear what homeowners across connecticut are saying about us

A black arrow pointing down on a white background.
A green triangle is floating in the air on a white background.
A black and white icon of a map with a pin on it.

BASED IN OXFORD, SERVING ALL OF CONNECTICUT

At Outdoor Space Builders, we are honored to serve homeowners across Connecticut, creating luxurious outdoor living spaces that elevate the beauty and functionality of their homes.

Hartford County

New Haven County

Middlesex County

Litchfield County

Fairfield County

New London County

Tolland County

Windham County

Share by: