Insulation Services in Lafayette, LA

This work is about slowing the movement of heat and moisture through your home, mostly in the attic where the biggest gains are. A job can mean adding blown or batt insulation on the attic floor, spraying foam to seal and insulate, or first running an energy assessment to find where air and heat are actually getting in. Good insulation is really two things working together, material that resists heat and a tight seal that stops air from leaking around it.

Doing this in Acadiana

In Acadiana the enemy is not just heat, it is humid air. Warm wet air pushes into an attic all summer, and if the insulation is thin or the attic is not sealed, that moisture condenses on cooler surfaces and feeds mold and wood rot. Spray foam changes the game here because it seals air leaks as well as insulating, but it also changes how your attic breathes, so ventilation and any existing moisture problem have to be sorted out first. Our long cooling season means a poorly insulated home in Lafayette, Youngsville, or Broussard runs the air conditioner hard for most of the year, and termites and damp are a constant background worry, so anyone working in your attic should be looking at the wood and the ductwork while they are up there, not just laying down batts.

How to tell where you stand

What makes the job bigger or smaller

Yourself, or a pro

A homeowner can genuinely handle some of this. Adding batts or blown-in insulation on an open, dry attic floor is within reach if you wear protection, work carefully around wiring and light fixtures, and do not block the soffit vents. Sealing obvious gaps around the attic hatch or an outlet is also fair game. Spray foam is not a DIY job. It has to be mixed and applied at the right ratio and temperature or it never cures properly, off-gasses, or traps moisture in your roof deck, and undoing a bad foam job is expensive and miserable. Any time there is existing mold, wet insulation, knob and tube wiring, or a question about attic ventilation, get a pro to look before you cover anything up.

What to ask anybody quoting this, us included

Walk away if you hear these.
  • They quote a price over the phone without going into the attic to look.
  • They push spray foam for every situation without asking about your ventilation or any moisture history.
  • They want to lay new insulation straight over old material that is wet, matted, or clearly damaged.
  • They cannot tell you the R-value they are installing or why that number fits your home.

Tell us about your insulation job

Every question is optional. The more you answer the faster somebody can come back with a real number, and the better we can match you to the right person, but a name and a number is enough to get started.

Tell us what needs doing

As much detail as you feel like giving, as little as you have to. A photo helps most.

Best insulation in Lafayette

16 businesses near you, ordered by their Google rating. Nobody paid to be here.

5.0171 Google reviews

Sunlight Contractors

2323 Bainbridge St Ste 110, Kenner, LA 70062, USA

5.0149 Google reviews

Blue Monkey Roofing

320 S Philo Dr, Lafayette, LA 70506, USA

5.089 Google reviews

Oh My Roof Construction, LLC

414 Quail Dr, Lafayette, LA 70508, USA

5.045 Google reviews

A.L.I. Home Improvement Company

124 Keeneland Ln, Lafayette, LA 70503, USA

5.019 Google reviews

Acadiana Handyman Services, LLC

218 Lyons St, Lafayette, LA 70506, USA

4.91,487 Google reviews

Butcher Air Conditioning

101 Boyce St, Broussard, LA 70518, USA

Ratings and review counts come from Google and were pulled on 15 August 2026. Businesses are listed because they serve Lafayette, not because they paid: nobody on this page has bought their position, and we have not inspected anyone's work. Call and ask for references the same way you would anyway.

Questions people ask

How much insulation should my attic have?

For our climate the attic floor generally wants a deep layer, well above the tops of the joists. If you can see your joists sticking out of the insulation, you are almost certainly under what is recommended. An assessment will give you the specific R-value target and measure what you have now.

Is spray foam worth it, or is regular insulation fine?

It depends on the home. Spray foam seals air leaks as it insulates, which matters a lot in our humid climate, but it also changes how the attic handles moisture and ventilation, so it is not right for every house. Traditional blown-in or batt insulation paired with good air sealing works well and is simpler in many homes. A proper look at your attic should decide it, not a default.

Will new insulation stop the moisture and humidity problems in my attic?

Not on its own. Insulation slows heat, but moisture comes from air leaks, ventilation problems, or a roof or plumbing issue, and those have to be fixed first. If someone covers a damp attic with new insulation without finding the source, you can end up trapping the problem. That is why an assessment matters.

Do I have to remove my old insulation before adding more?

Often no. If the existing insulation is dry and in good shape, new material can usually go right on top. It should come out if it is wet, moldy, matted down, or has been in rodents or roof leaks. Someone should get into the attic and check before deciding either way.