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TRUSTED BY DENHAM SPRINGS, LA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon74
    Verified insulation services reviews

Top-Rated Insulation pros in Denham Springs - Updated Nov 2026

Avatar for Sunlight Contractors
Sunlight Contractors
5.0(
464
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving Denham Springs, LA and surrounding areas

Approved

In business since 2003

Credit card accepted

Offers commercial services

"Contacted Sunlight Contractors about removing fiberglass insulation underneath my house and installing foam insulation. Ira answered his phone after business hours from home and gave me information. The crew showed up promptly to remove the insulation on Monday and returned on Tuesday to install the foam insulation. Crews were very polite and professional. All work was completed promised and area left clean. Will you again for insulation of our attic."
Corey Yates
Christopher Dobard
Louis Guerra
Application
Full Expanded

+45

Response time2 days
Response rate100%
11 neighbors recently requested a quote
Avatar for D & M Insulation
D & M Insulation
5.0(
5
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Denham Springs, LA and surrounding areas

Approved

Free estimates

Small jobs welcome

Offers commercial services

"I found this company by accident and turns out one of the best I used the young man was very professional and knowledgeable he was fast had all the insulation up in only a hour or so and his prices were the best I’ve seen .. and I can thank him enough"
R-value Attic Upgrade
R-value Attic Upgrade
22 neighbors recently requested a quote
Avatar for Air Duct Cleaning Services
Air Duct Cleaning Services
5.0(
21
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Denham Springs, LA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"AA Air Duct Cleaning and Installation did an excellent job. They cleaned the 12 units of our condominium in a professional manner. AJ and Aaron explained the procedure that would be used and worked in an efficient manner completing the work on time. Pictures and video were taken to show the results."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

17 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Asyndant Energy, Inc.
Asyndant Energy, Inc.
4.5(
31
)
Blown-In Insulation - Install or Upgrade

Serving Denham Springs, LA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"Just can’t say enough good about these guys! They were professional, on time, easy to contact and did great work! Would give them 10 stars if I could. Not so easy to find good quality contractors anymore, these guys are the exception! Can’t say enough good, if you are thinking you are paying too much in utilities just contact them they can help! I got my air ducts and return sealed and insulation blown in...huge difference!"
Home Energy Auditing
Home Energy Auditing
Home Energy Auditing
Home Energy Auditing
Rusted vent

+22

Response time1 day
8 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for SwampSeal Insulation
SwampSeal Insulation
5.0(
5
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Denham Springs, LA and surrounding areas

Approved

In business since 2023

Free estimates

Offers commercial services

SwampSeal Insulation is a family owned business specializing in fiberglass and cellulose insulation servicing South Louisiana. We set the standard by prioritizing customer satisfaction and attention to detail while maintaining strict deadlines. We are growing rapidly while still ensuring quality and integrity remain the focus as to why we do what we do.

Residential R38 Attic
R38 CATHERAL BATTING
R38 CATHERAL BATTING
RecentAngieCustomerAttic
RecentAngieCustomerAttic

+8

10 neighbors recently requested a quote
Recommended by40%of homeowners
Avatar for Hawx Insulation-Baton Rouge
Hawx Insulation-Baton Rouge
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Denham Springs, LA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n

Recommended by75%of homeowners
Avatar for Quality Works
Quality Works
5.0(
6
)
Blown-In Insulation - Install or Upgrade

Serving Denham Springs, LA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

Quality Works is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Pressure washing
Pressure washing
Pressure washing
Junk hauling
Junk hauling

+5

92 neighbors recently requested a quote
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Showing 1-10 of 65
Insulation FAQs, answered by experts

Yes, you can install insulation over ductwork, and doing so can save you money. Without insulation, the HVAC unit must work harder to force warm or cool air around the home, and once the air reaches the vent, it may not be the correct temperature. Insulating HVAC ducts makes your system work more efficiently, saving you money on heating and cooling bills.

In nearly all cases, you are required to install a vapor barrier in your crawl space. However, local regulations will change based on the local climate and the crawl space's susceptibility to moisture. Even if a vapor barrier is not legally required, it is often a good idea to keep your crawl space dry.

To cover your HVAC ducts and air vents during construction, use plastic sheets or drop cloths secured with painter's tape. Be sure to cover all supply vents on your floors and walls, as well as the larger HVAC return vent, which is typically on the ceiling. While canvas drop cloths can also be used, they may not catch all the fine dust. It is crucial to shut off your HVAC system or at least the zone where construction is happening. Running the system with vents sealed can put significant strain on the blower motor and air handler. For additional dust containment, you can also hang plastic sheets over doorways to separate the construction area from the rest of your home.

Open-cell foam insulation has a life span ranging between 15 to 25 years when well cared for. However, the material may degrade sooner in areas with high humidity or after prolonged water exposure. Proper installation and maintenance can maximize its longevity but requires close monitoring. Closed-cell foam insulation has a longer life span of 30 to 50 years.

Installing sheets of plywood over attic insulation is a popular choice, especially in storage spaces. That said, insulation works by trapping hot air—so it needs extra space to expand and be effective, or you might reduce the energy efficiency of your home. 

It’s important that you never compress the insulation by installing flooring directly on top of it. In many houses, you’ll need to install a subfloor before putting plywood over insulation in your attic.

The Denham Springs, LA homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.