ConexInsulation
Spray foam insulation contractor applying closed-cell foam
Spray Foam & Insulation Contractor — Nationwide

Insulation that actually works — from attics to shipping containers.

We install high-performance spray foam and insulation systems that block extreme temperatures, stop condensation, and lower energy bills — for homes, garages, crawl spaces, and a specialty most contractors don't touch: shipping container conversions.

Free estimates Licensed & insured No-pressure quotes

Insulate smarter, spend less

Tell us about your home or your container project and we'll build a quote that fits — no pressure, no obligation.

  • Cut energy bills year-round
  • Stop condensation & moisture damage
  • Even out cold, drafty rooms
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9
Insulation services — residential, commercial & container
50
States served nationwide
1
Signature specialty: shipping container / CONEX insulation
Free
No-pressure quotes on every project
Whole-home & specialty insulation

Every space loses heat differently. We insulate for each one.

An attic, a crawl space, and a bare steel shipping container all lose conditioned air in completely different ways — which means they need different fixes, not the same blanket approach every contractor defaults to. Under-insulated spaces bleed energy every single day, showing up as high utility bills, cold or drafty rooms, and — in the case of an uninsulated steel container — condensation that leads straight to rust and mold.

We install the full range — spray foam, blown-in, and batt & fiberglass — and we pair it with honest diagnostics so the material actually fits the problem.

And because we saw real, consistent demand for a service almost nobody offers well — shipping container insulation — we built it into a core specialty, not an afterthought.

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Energy-efficient insulated home interior
Our Services

Complete insulation, plus a specialty nobody else offers

From attic top-ups to full shipping container conversions — click any service to see how it works and what it costs.

Our Specialty

Container Insulation

Closed-cell spray foam applied directly to corrugated steel — insulation and a vapor barrier in one step, with no furring strips eating into the interior square footage a container home, office, or cargo unit can't spare.

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Spray Foam Insulation

The highest R-value per inch and a true air seal in one step — spray foam insulates and seals against air leaks in a single application, which no other insulation product does.

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Attic Insulation

Your attic is the single biggest source of whole-home heat loss and heat gain — and the most common, highest-return insulation upgrade a homeowner can make.

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Crawl Space Insulation

A vented, under-insulated crawlspace is one of the most common sources of moisture, mold, and cold-floor complaints in a house — and one of the most overlooked.

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Blown-In Cellulose

Blown-in insulation fills attics and existing walls fast, flows around obstructions batts can't handle, and — with dense-pack cellulose — can upgrade wall insulation without tearing out drywall.

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Batt & Fiberglass

Batt insulation is the standard for new construction and open framing, and it's the insulation type where installation quality matters most — a well-installed batt and a poorly installed one can perform very differently.

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Insulation Removal

Vacuum extraction removal of contaminated, rodent-damaged, water-soaked, or simply worn-out old insulation — the step that has to happen before a re-insulation job can actually deliver its rated performance.

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Energy Audits

Blower-door testing and infrared thermal imaging that measure exactly where a home is losing energy, so any insulation or air-sealing work that follows is targeted to real, diagnosed problems instead of a guess.

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Garage & Basement

Garage wall, ceiling, and door insulation paired with basement rim joist and foundation wall insulation — closing the gap in the semi-heated and unheated transition spaces that share walls, floors, and ceilings with the rest of the house.

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Contractor spraying closed-cell spray foam insulation
Why homeowners choose us

Specialists who do it right.

Matched to the space

We don't push one product everywhere — the right R-value and method for an attic, a crawl space, and a steel container are all different, and we spec each one on its merits.

The whole system, one crew

Removal, insulation, and air sealing handled together, so your new R-value actually performs — no gaps, no finger-pointing.

Honest cost guidance

We give clear, itemized quotes and tell you plainly what your project actually needs — no upsell, no guesswork.

Steel meets warmth

Bare steel has zero R-value. We fix that properly.

Shipping containers sweat, rust, and lose or gain heat fast without real insulation. Closed-cell spray foam bonds directly to the corrugated steel, acting as both a vapor barrier and an insulation layer in one step — for container homes, offices, studios, and cargo or cold-chain storage.

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0
Natural R-value of bare corrugated steel
1-step
Spray foam insulates and vapor-seals together
3
Use cases: homes, offices, cargo/cold-chain
Nationwide
Container conversion projects welcome
How it works

From free quote to a properly insulated space

01

Free assessment & quote

We look at your home, garage, crawl space, or container project, talk through your goals and budget, and give you a clear, itemized quote.

02

Expert installation

Our crews remove old insulation if needed and install the right system to your target R-value — clean and on schedule.

03

A space that performs

Lower energy bills, fewer drafts, and — for container projects — a dry, condensation-free interior you can actually live or work in.

Questions

Insulation FAQs

Yes — Conex Insulation works with homeowners, container-conversion builders, and property owners nationwide. Tell us about your project on the quote form and we'll confirm scheduling for your location.

It depends on your climate — colder regions generally target a higher attic and wall R-value than milder ones. We'll help you figure out the right target for your specific home rather than quoting a one-size-fits-all number.

Yes — it's our signature specialty. Bare steel containers have zero natural R-value and sweat badly with temperature swings. We install closed-cell spray foam, which bonds directly to corrugated steel and acts as an insulation layer and vapor barrier in one step, for container homes, offices, and cargo/storage conversions.

It depends on the space. Spray foam delivers the highest R-value per inch plus a built-in air seal, ideal for rim joists, crawl spaces, and shipping containers. Blown-in is fast and cost-effective for topping off attics. Batt is a reliable, economical choice in open framing and new construction. We recommend the right combination for your project rather than pushing one product everywhere.

The federal 25C and 25D energy-efficiency tax credits expired December 31, 2025, so they don't apply to 2026 installations. Many states and utility companies still offer their own rebate or weatherization-assistance programs — availability varies by location, so ask us and we'll help you check what's currently available for your address.

Yes. An under-insulated attic, wall, or crawl space is constantly bleeding conditioned air, which forces your HVAC system to run harder and longer. Bringing your home up to the right R-value and pairing it with proper air sealing is consistently one of the highest-return home improvements available, regardless of climate.

Get your free insulation quote

Tell us about your home and we'll put together a clear, no-pressure quote — plus walk you through the weatherization rebates you may qualify for.