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Looking for insulation in Southport, CT? If your home feels drafty in winter… Cloud9 is Southport’s trusted insulation contractor specializing in spray foam – the most effective insulation solution for Fairfield County homes.
We’re local, OSHA30 and BPI certified, and we use the newest equipment in the industry. No-charge inspections. Free estimates. Real results.
Spray foam insulation is one of the most effective ways to improve comfort energy efficiency in Southport homes. With New England’s hot summers, cold winters, and coastal humidity, traditional insulation often falls short. Spray foam expands to seal gaps and cracks that allow air leakage, helping homeowners maintain consistent indoor temperatures while reducing energy waste year-round.
Unlike fiberglass or cellulose, spray foam insulation creates an airtight seal that blocks drafts, moisture intrusion, and outside noise. This makes it especially valuable for older homes in Southport, where uneven framing and hidden air leaks are common. Properly installed spray foam improves comfort immediately and continues delivering energy savings for decades.
Spray foam is a high-impact investment that pays for itself through reduced utility costs and increased home value. We also help Southport homeowners navigate available tax incentives and rebates to maximize their ROI.
While the federal 25C tax credit expired at the end of 2025, 2026 is a massive year for local savings. As a participating Energize CT contractor, Cloud9 helps you lock in the increased $2.00 per square foot rebate—up to $10,000 per home—for professionally installed insulation.
Local FAQ: Q: Is spray foam allowed in Sasco Hill historic renovations?
A: Yes. Because it is applied to the interior cavities, it does not alter the protected historic exterior, making it the preferred choice for Southport’s most significant estates while meeting 2026 R-60 attic standards.
Spray foam insulation is applied as a liquid that expands on contact, filling gaps, seams, and cavities that traditional insulation cannot reach. Once cured, it forms a durable thermal and air barrier that reduces heat transfer and prevents uncontrolled air movement throughout the home.
By sealing the building envelope, spray foam helps HVAC systems work more efficiently. Homes stay warmer in winter, cooler in summer, and experience fewer hot and cold spots. This improved efficiency can significantly lower heating and cooling costs while extending the life of HVAC equipment.
Before Closed Cell Spray Foam
Closed cell spray foam is ideal for areas where maximum insulation performance and moisture control are required. In Southport homes, it is commonly installed in attics, crawl spaces, rim joists, basements, garage walls, and exterior wall cavities during renovations or new construction.
Because closed cell foam adds structural rigidity and resists moisture, it performs especially well in coastal environments. It helps protect from humidity-related issues while delivering high R-value insulation in limited spaces.
After Closed Cell Spray Foam
– Controls Moisture & Prevents Mold: We utilize high-density Closed Cell spray foam to create a seamless, FEMA-approved vapor barrier in crawl spaces and basements. By sealing out the humid Long Island Sound air, we eliminate the dampness and musty odors that lead to mold growth in coastal Southport foundations.
– Air-Seals Additions for 2026 Comfort: Don’t let a new sunroom or kitchen expansion become an energy drain. We apply Open Cell or Closed Cell foam to ensure your primary suite stays at a consistent temperature year-round. This precision air-sealing meets the latest 2026 energy codes and qualifies for the $2.00/sq ft Energize CT rebate for existing walls.
– Upgrades Historic & Older Homes: We specialize in retrofitting Southport’s historic colonials and capes. Because spray foam expands into the irregular, hard-to-reach gaps where traditional fiberglass fails, we stop the “chimney effect” that pulls heat out of your home. We often combine this with Rockwool (mineral wool) for superior fire-blocking and soundproofing between floors.
– Insulates Rim Joists & Eliminates Cold Floors: The rim joist is often the leakiest part of a Fairfield County home. By sealing the foundation where it meets the frame with Closed Cell spray foam, we stop drafts at the source. This is one of the most cost-effective 2026 upgrades, instantly making your first floor warmer while qualifying for up to $10,000 state rebate cap.
We use computer controlled chemical proportioners to produce fully cured foam. Keeping chemical mix at 1:1 ratio is critical for foam's safety and quality. Each customer receives a production quality report- a data-backed proof of the quality of the installed spray foam.
Only top of the line machines offer this capability.
We use only premium spray foam chemicals by NCFI Polyurethanes.
NCFI has been a partner with NASA for over 40 years providing foam insulation for NASA’s space programs.
OSHA, Building Performance Institute and Enegize CT trained and certified professionals.
Members of Energize CT/ Connecticut Insulation Installers Network
We bring expertise and safety to your home or job site.
Cloud9 Spray Foam Insulation proudly serves homeowners throughout Southport, CT and surrounding Fairfield County communities. Our team understands the unique construction styles and climate challenges found in coastal Connecticut homes, allowing us to recommend insulation solutions that actually work long-term
Whether you’re upgrading insulation in a older home, finishing a renovation, or improving energy efficiency in a newer property, our locally experienced installers deliver professional results you can trust.
As Southport’s premier insulation contractor, we specialize in spray foam but can advise on all insulation types to find the right solution for your home.
Professional spray foam installation ensures proper coverage, correct thickness, and long-term performance. Incorrect application can lead to uneven insulation, air gaps, or moisture issues. Our certified installers follow industry best practices to ensure consistent results and optimal energy efficiency.
Choosing a qualified spray foam contractor also ensures compliance with local building codes and manufacturer specification. This protects your investment while maximizing comfort, energy savings, and indoor air quality.
How long does spray foam installation take? Most residential projects take 1-2 days depending on the size and scope. We’ll give you an accurate timeline during your free inspection.
Do I need to leave my home during installation? Yes, the home may not be occupied during and for 24 hours after application has ended. This time allows the foam to fully cure and the home to air out. We’ll walk you through the process.
How much does spray foam cost? Every project is different. We provide free, detailed estimates based on your specific needs. Spray foam costs more upfront than fiberglass, but the energy savings and performance make it worth it for most homes.
What’s the difference between open-cell and closed-cell spray foam? Closed-cell is four times denser than Open Cell, has double the R-value per inch and is the only product that should be applied in areas prone to moisture such as basements and crawl spaces. Open-cell foam is significantly lighter and more affordable. It requires thicker applications to achieve the same R-value but will also seal out air leaks as well as Closed-cell foam will. Open Cell excels over Closed Cell with its superior sound dampening characteristics and with a much higher expansion rate it is the only correct product for hard-to-reach dry areas. We’ll recommend the right type for your product.
Do you offer financing? Yes, we work with financing partners to make insulation upgrades affordable. Ask us about payment options during your consultation.
Are you licensed and insured? Absolutely. We’re fully licensed, insured, OSHA30 certified, and BPI certified. Your home and your family are protected.
Why is spray foam the best insulation for Southport homes? Southport’s coastal climate creates unique challenges – humidity from Long Island Sound, temperature swings, and older home construction. Spray foam insulation outperforms fiberglass and cellulose by creating an airtight, moisture-resistant seal that traditional insulation can’t match.
Ready to fix your Southport home’s insulation problems? We offer no-charge inspections and free estimates. We’ll assess your home, explain what’s needed, and give you honest pricing—no pressure, no gimmicks.
Whether you’re dealing with:
– High energy bills
– Uncomfortable rooms
– A new addition that needs insulation
– Moisture problems in your crawl space or basement
– A renovation where walls are already open
…we can help.
Spray Foam Insulation • Attic Insulation • Crawl Space Insulation • Rim Joist Insulation • Wall Insulation
© Cloud9Home Performance Insulation 2026