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Blower Door Testing

Our BPI-certified analysts use this important diagnostic tool to grade the performance of an existing home about to undergo energy efficiency improvements as well as ensure a tight energy-efficient envelope in new construction. We advise new home builders to conduct a blower door test after the home is insulated, but before the drywall is hung. Newly enforced building codes have stringent requirements for air infiltration. This test will be able to quantify the results of your home before it is too late—or too costly—to repair the problems.

In a procedure called Blower Door Directed Air Sealing, Diversified Energy helps to locate and fix leaks in an existing house. Even homes that have been built fairly recently have major issues regarding their inability to be cooled or heated appropriately. The owners report hot or cold spots, in addition to excessive energy bills. Our first step in diagnosing the issues with these homes is the blower door test. For a more detailed and thorough audit, a homeowner may also incorporate duct blaster testing along with an infrared inspection. Of course, the DE 360 Energy Audit offers the most detailed reporting of your home’s energy deficiencies.

Blower Door testing quantifies airflow through leaks in your home, detects energy loss, and pinpoints air intrusion

How leaky is your home? Diversified Energy offers blower door testing services to measure and identify the sources of air leakage in your home.

Video: Blower Door Diagnostic Testing

Benefits Of Blower Door Testing On Your Home

A blower door test is a diagnostic tool used to measure the airtightness of a building envelope or the barrier that separates indoor and outdoor environments. The test is performed by sealing all windows and doors in the home, then using a powerful fan to depressurize the building and measure the amount of air that leaks in. Blower door testing provides several key benefits, including:

Improved energy efficiency: A blower door test helps identify air leaks and other sources of air infiltration in a home, allowing homeowners to make necessary improvements to reduce air infiltration and improve energy efficiency. This can help reduce energy bills and increase the overall comfort of a home.

Enhanced indoor air quality: Air infiltration can bring in outdoor pollutants, such as pollen, dust, and other allergens, which can negatively impact indoor air quality. By reducing air infiltration through a blower door test and subsequent improvements, homeowners can improve indoor air quality and reduce the risk of respiratory problems and other health issues.

Increased comfort: Air leaks can cause temperature imbalances and drafts, leading to discomfort in a home. By reducing air infiltration through a blower door test and subsequent improvements, homeowners can increase comfort levels and enjoy a more consistent indoor temperature.

Improved durability of the building envelope: Air infiltration can cause moisture to enter a building, leading to mold growth and other structural issues. By reducing air infiltration through a blower door test and subsequent improvements, homeowners can improve the durability of their building envelope and reduce the risk of moisture damage.

Increased value of home: Energy efficiency and improved indoor air quality are important factors for homebuyers, and a blower door test can demonstrate the efforts made by homeowners to improve these factors. This can increase the value of a home and make it more attractive to potential buyers.

Overall, blower door testing is a valuable diagnostic tool that can help homeowners improve the energy efficiency, indoor air quality, comfort, durability, and value of their homes. By identifying sources of air infiltration and making necessary improvements, homeowners can enjoy a healthier, more comfortable, and more energy-efficient living environment.

Enjoy A Cleaner, Healthier Home & Lower Your Energy Bills

de 360 energy audit 01 1

360 Energy Audit

How leaky is your HVAC ductwork? Diversified Energy offers state-of-the-art duct blaster HVAC duct leakage testing. Contact Us Today!

Duct Testing

Diversified Energy offers professional Combustion Appliance Zone [CAZ] testing services by our BPI certified technicians. Contact Us Today!

CAZ Testing

Diversified Energy offers professional Infrared Photography/Thermography service by our highly trained technicians. Contact Us Today!

Infrared Photography

Diversified Energy offers code compliance inspections and verification services. Contact Us Today!

Code Compliance

Diversified Energy offers professional performance verification services across the Greater New Orleans Region. Contact Us Today!

Performance Verification

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Diversified Energy

4.9

Based on 278 reviews

21:45 19 Dec 24

Jeff was awesome! He was super responsive via email before even coming out to see my house. Then on the day he inspected my home, he spent a good bit of time walking me through my options. The best part was that he was so honest that he recomended my handyman do the work instead of his own company since insulation isn’t really what I needed. He explained exactly what should be done and even sent me a link to the product I should buy. I would 100 percent call Jeff again in the future and recommend him to my friends.

00:16 14 Dec 24

These guys rock, like seriously .probably an A.C. man would charge at least a thousand dollars for the labor, equipment and expertise Niki and Derrick employed on this job. They sealed ductwork in the attic, on the unit itself as well as did like a pressure test to see how much air was leaking from the whole system. Thank you Niki and Derrick for bringing Christmas early to our household!!

20:53 13 Dec 24

Awesome experience with Niki and Derrick! They arrived promptly and updated me every step of the way. They found several issues on my systems and were able to fix everything. Kept everything spotless. Thank yall!

Kate Puszykowski

17:29 13 Dec 24

Stacy was so helpful and patient in working with me to schedule a time for this assessment. She was quick to respond and answered all of my questions!Allen and Xavier were our technicians for this service and they couldn't have been more professional and helpful! They came in and got to work, being sure to explain the process to us the entire way through. They were able to identify several different unknown gaps and cracks and either fix it or provide feedback on the next steps to getting it taken care of.Huge thank you to Stacy, Allen and Xavier, and Atmos & Diversified Energy for providing this valuable service to homeowners. I will 100% be passing it along to anyone and everyone who might qualify for this service!

Tara Nicole Brown

18:25 05 Dec 24

Allen, Gavin, and Xavier came out this morning to perform the efficiency testing and preventive measures on our house. Their work brought our air leak ratings into the efficient zone, and they put up the best weatherstripping we e ever seen on our front door. We already have spray foam in our attic, so they were happy about that. The three men were friendly, positive, professional, and, honestly, just a delight to spend time with. Perhaps this compliment is off the mark, but we’d love to just have a beer and chill with them. Thanks for this opportunity!

22:26 02 Dec 24

We had Niki and Derrick who were both professional, efficient, and personable. They did a great job and took their time to ensure the work was done properly. Thank you both! I've already recommended the program to others who haven't heard about it yet =)

Raymond Clark, Jr.

13:59 27 Nov 24

I want to thank Natristan for his professionalism. He went above an beyond in the work that was done. I really appreciate his kindness and doing his job with his heart in it. Again thank you. Jesus loves yall and yall have a blessed day.

21:39 26 Nov 24

We could not be happier with the creative very competitive bid we got in on doing touch up work on spray foam that had gotten messed up in our attic. Jeff figured out a way to minimize cost for us by not bringing in all the equipment & he sent the nicest team of guys- Natristan, Xavier, Gavin- who knocked out a PERFECT, airtight job in just a few hours.Thank you guys for alleviating stress from our lives with a perfectly done spray foam job🙏🏼🙌🏼!

12:34 24 Nov 24

I found out about Diversified through Atmos. They came out at the time they were scheduled. They found a huge volume of leaks in our house and our duct work. Allen communicated the information, and they did the work all in the same afternoon! The difference is visible, almost a 75% reduction in duct leaks. They were courteous and professional. I recommend them highly.

22:54 19 Nov 24

Thank you for a great service. Everything was done really nice.Nat, Xavier & Gavin the best crew.

17:49 18 Nov 24

Professional service Ms.Nicki, Tron,and Derick very curious and kind. Thank you.

18:25 12 Nov 24

Niki and Tron were great! They made our house more energy efficient and did an excellent job. Very nice people too. Highly recommend!

21:54 06 Nov 24

I want to thanks Nat and Gavin for the awesome job they preformed at my home. I appreciate the call I received in advance of their arrival. They were very professional, courteous and took the time to answer all my many questions. And didn't make me feel that I was being a problem for wanting to know. Thanks to the company that hire such nice people.

19:26 06 Nov 24

great job, professional, thorough and quick. also, nice people

20:11 05 Nov 24

I had Diversified Energy at my house today, and they did a phenomenal job finding and sealing leaks! Highly recommend.

18:24 02 Nov 24

I was so impressed with the professional way Alan and Gavin presented themselves. Alan first by telephone and then personally coming to my door and explaining the procedure they would use to help me save energy. Alan immediately assessed the problems and with much work and time they repaired and tested for efficiency. These two gentlemen were very knowledgeable, showed me what exactly needed to be done, and proceeded with their particular protocol. They completed the job and showed me exactly what they had done and cleaned up like they were never here. I can only think Atmos for having diversified energy send what I consider two of the most professional knowledgeable people to address and fix my energy problems.

Candace Belaire

17:27 28 Oct 24

Niki and Tron were amazing! Very personable and professional. They took their time making sure everything was as it needed to be. Niki was literally in the wall where the air filter goes! They make a great team

16:55 28 Oct 24

Nat and the crew was wonderful guys they go far and beyond there jobs. They are very friendly they explain everything when you are unfamiliar with the assessment

17:18 27 Oct 24

Nat and his team were exceptional! They arrived punctually and demonstrated a high level of professionalism and expertise in their work. They did a fantastic job sealing my house and addressing numerous areas that required attention. I truly appreciate the excellent service you provided. Thank you!

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16:46 22 Oct 24

Nike and Derrick, these people have done an excellent job on my house. very respectful and most importantly very professional, I am very grateful to them. Thank you very much for sending them, I have done a great job.

16:46 22 Oct 24

Niki and Derrick are very professional people. We are very happy with the support they gave us. They solved many problems that we had no idea were happening. I am very grateful to them and to the entire team that is organizing this for the community. Thank you very much.

19:02 18 Oct 24

Nat and Gavin were awesome, very pleasant and very knowledgeable. We were pleased with their work. They helped us fix a lot of issues we had. We also want to thank Atmos for helping us improve our energy costs.

16:42 18 Oct 24

Tron & Nikki did an awesome job. They got my numbers down tremendously. They were very professional and knowledgeable. They did a wonderful job and walked me through the entire process. They answered any questions that I may have had.

21:46 09 Oct 24

Nikki, Gavin, Carlos and Francisco were very nice, extremely knowledgeable, efficient and cleaned everything up very well!!

00:47 08 Oct 24

I had my inspection done on 10/05/24 Nat and Tron did an amazing job at my house I can feel the difference now.. my Air conditioner don’t runs all day long it turns off when it gets cold and hot thanks guys .. I will recommend this company to everyone 🙌🏾🙌🏾🙌🏾🙌🏾🙏🏽

16:51 06 Oct 24

Thank u so much Allen for coming out to my home and making sure my air flow was working properly it was a pleasure meeting u service was great

02:14 04 Oct 24

Nat, Xavier and Derek with Diversified Energy came out to our home today to do a home performance inspection. These three gentlemen were absolutely the best. They were very knowledgeable very respectful and friendly and did everything with a smile. Their work was excellent, our home is energy efficient now, we can actually feel the difference, it’s a lot cooler. I highly recommend this company and these gentlemen to do your inspection.

21:29 03 Oct 24

Ron and Nat came to my home and did a great inspection, sealing any areas that were “leaky” and “defective”! The house is air tight and the “before and after” measurements were amazing. We are energy efficient now!! Thanks for a great service!

00:19 02 Oct 24

Honestly, I was wondering how this assessment would go, what they would do, what we would learn from it, etc., and I was totally impressed! Tron and Nat were so professional and knowledgeable, that by the time they left I was amazed at what I learned about my own house!! And, after they finished sealing everything, and repairing things as needed, my air conditioner really seemed to work better!! It was awesome, and I’m hoping to get some insulation work done by them as well to make it even better. Highly recommended!! Thanks!

Denise Schaefer

12:44 01 Oct 24

I had Nikki, Tron and Gavin for an Energy inspection yesterday. I was AMAZED at all of the things that they tested to improve my Energy efficiency and possibly lower my energy bill. They were extremely knowledgeable and so courteous. Thanks so much for a wonderful experience.

Madeleine Becnel

19:13 27 Sep 24

The people were absolutely wonderful, a real asset to this company. Work done in a truly professional manner!!

17:51 24 Sep 24

Allen, Tron, Derrick and Gavin from Diversified Energy New Orleans came to my house today to run an inspection and make some improvements for more efficiency. They were great. Super efficient, personable and did great work - all with big smiles. I highly recommend them and their service.

04:56 27 Aug 24

Thank God for sending this company my way! Special shout out to Niki and Tron, they did an amazing job on my home. The took their time to check my air ducts, check for air leaks, and all filters were cleaned. I would highly recommend this company and the staff !

03:26 24 Aug 24

Shout out to Phazie and Nikki ! These two arrived on time, ready to work. They were super efficient and professional, they explained the process and how they were going to examine my homes AC system. Before they came my home was getting extremely hot, not cooling off until late in the night. They resealed my AC unit, zip tied all my vents and ductwork, also sealed the gaps on my plumbing. Now my home is staying cool throughout the entire day. These guys or life savers!

Brenda Fournette

01:56 23 Aug 24

My experience with diversity was very powerful. Tron and Nat where very knowledgeable about what they were doing and where excellent in doing the task at hand . They explained everything to me thoroughly. They also were very professional. The second part of the appointment I would very much like for TRON and Nat to complete the j2 nd phase of the job.

02:53 03 Aug 24

Nikki and Tron did A Great Job today! Very professional, cleaned up perfectly and had A amazing attitude in extremely hot attic conditions! Highly recommend!

16:57 26 Jul 24

The team came out and did an amazing job. Came bright and early, got right to work and even asked for the broom and dustpan to clean up the mess! Very polite and knowledgeable. I immediately heard the difference in my home when the AC turned out. I am too excited, thanks y'all!

Carlos Arredondo

19:49 17 Jul 24

Nikki and her amazing crew were wonderful! We wished we would have called them sooner!! We highly recommend contacting them for all of your insulation and energy efficiency needs.

19:06 17 Jul 24

Nikki, Allie, Tron, and Phaize were the best crew!! It was a pleasure meeting them- they were extremely professional and knowledgeable with upgrading our energy efficiency of our very old, unique house. I highly recommend this company!

22:56 07 Jun 24

Late post but I'm finally getting to it but I just want to say that Niki Aguillard and her helper did a great job in securing my home. They really took their time and extra time fixing problems in and around the attic. Then they both explained to me what they were doing step by step. Thank you both so much!

15:51 04 Jun 24

Couldn’t be happier with the work they did on my home. It started with a consultation, where the individual was extremely knowledgeable and professional, discussed overall energy optimization for my 1900s shotgun home and what would be the best bang for my buck given my specific home and problems. Really took a wholistic approach to energy efficiency rather than just giving 1 solution. After discussion and some quotes, we ultimately ended up with spray foam insulation in the attic and beneath the floors. I asked a lot of questions and all were answered quickly. The work was scheduled and completely relatively on time with minimal impact to my work schedule (much of it was able to be done without me being present). Upon initial inspection they were not happy with their own work (although i could not tell the difference) and redid a portion on their own dime. The commitment to quality work over getting it done quickly was something i was not used to seeing from contractors, and showed a great deal of ownership and pride in their work. Finally some minor damage was done as they completed and it was addressed quickly and at no cost to me. Overall highly recommend and the final product as exactly what i was looking for, as my home is much cooler and ready for a hot summer.

Natasha Crossley-Williams

23:41 03 Jun 24

They came on time and was very professional and very knowledgeable about there job and did a outstanding job.I recommend them to everyone I know.👍🏽👍🏽👍🏽

Jennifer “Jenny” Zimmerman-King

14:56 21 May 24

Wonderful people and a service that was completed with immediate results in the AC's ability to cool down. Niki, Ali, and Tron were kind and explained everything they did as well as the before and after results.

21:14 22 Apr 24

Workers Niki and crew were professional and ŵorking

21:06 22 Apr 24

Niki, Allen, & Tron were such a delight to meet. They were so informative, and particular in explaining to me different questions I had to help me understand thoroughly. They did a wonderful job, and they cleaned up after themselves as well. If you’re looking for the BEST, I highly recommend that you go with Diversified Energy.

17:31 16 Apr 24

They came in and did an awesome job. All smiles, made sure the work was being done effectively, explained everything and gave me a couple pointers. My CFM50 Reduction was almost 2000. A massive drop in inefficiency. They even cleaned up everything behind themselves

02:09 04 Apr 24

I am highly recommending diversified energy to everyone that is looking for a dependable company with very knowledgeable, hard-working, kind responsible, neat workers that take the time and finish Your home with a fine tooth comb. The praise goes to Niki and Alli/Natristan This company couldn’t have sent me two better workers I appreciate everything that you have done. I’ve already referred you to a coworker and she’ll be looking forward to working with you all as well. Niki and Alli You all are a five star duel. Best wishes in your career. The work and the communication that you all has given, Sure makes a customers life at ease. Your Boss should give ya’ll a raise for making the company standards and values stronger . Thanks again for everything.

Anthony Almerico

20:19 21 Mar 24

Nikki and her crew did an excellent job attending to my home energy needs. From the beginning, Nikki was very communicative letting me know exactly what time the crew would arrive. They were very attentive to details, and made sure to keep me informed of everything that was going on throughout their work. They were even so kind as to let me know I had a roof leak, 😔, and notified me of it's location. They were mindful of my home and made sure not to disturb anything and even offered to help vacuum the house when they were done! They were also very aware, and kind, to my pup while going in and out the house, as he likes to dart around. Nikki made sure my gate and front door were always closed! (For those that have pets home while workers are present know how important this is.) I have had quite a few groups of people work on my home over the years and I can tell when someone cares about their work and when someone doesn't. Nikki and her team really cared, and I felt like I got to know them during the time they were working on my home. What a great job! It was a wonderful, EASY experience to work with them!

Blake Culpepper

18:50 09 Jan 24

Jeff and his team were very informative and helped me to understand the way my AC and insulation were contributing to moisture issues I was having. Through an educational approach, we addressed the most pressing issues and will re-evaluate progress over time. We added spray foam over a previous spray foam job that was inadequately done, corrected damaged duct work under my house with insulation, and replaced an oversized AC unit, all of which were contributing to excess moisture and wasted energy costs in my home.Jeff and team were also very friendly and professional, which was refreshing when I was being oversold and pressured by another company. I would certainly recommend Diversified Air to friends and family.

14:31 04 Nov 23

Diversified Energy did a great job at my home for weatherization. The crew was extremely professional and curious. I would highly recommend this company.

17:05 07 Oct 23

Diversified Energy, from its owner, Jeff Haag, to its team led by Nikki, were thorough, competent, professional, hard-working and cost-effective. We had our attic ductwork sealed and then the entire attic floor insulated with blown-in cellulose fiber, covered completely by sheets of the cutting edge technology of QV Platinum PCM (Phase Change Material) [Diversified Energy is the sole provider of this technology in the metro area]. Our A/C system works less now, even with continuing heat. We recommend Diversified Energy for upgrading your home’s energy efficiency!!

11:26 05 Oct 23

Jeff Haag and Diversified Energy went above and beyond while consulting with my client about insulation and home efficiency. He is very knowledgeable and has insulated multiple homes for me, always with good results. Very responsive too.

14:06 13 Sep 23

sandy andrepont

16:04 31 May 23

Nikki and her team did a wonderful in my home. They sprayed insulation, sealed air ducts and attic and much more. Nikki explained everything that was being done, very professional and respectful of me and my home. I highly recommend them!

15:20 15 May 23

When only the best customer service and installation will do. They foam insulated my attic and installed an American Standard heat pump. Quick, easy and in budget. A rare business find.Thanks Jeff!

Jenna Duplechien

21:38 11 May 23

Niki Aguillard and her crew came out to my house and did a fantastic job! They texted me what time they would arrive and they were on time. They made sure every crack was sealed in my house and even put door sliders on the doors to keep the air from flowing in. They completely insulated the attic. They were very friendly and kind overall did an amazing job I’m very pleased with how they went over and beyond to ease every concern I had and I really appreciate their hard work. Would definitely recommend Diversified Energy “Plug into Comfort”

22:57 13 Mar 23

We had a great experience working with Diversified Energy. They were always willing to communicate and take care of any issue that popped up. One of the best and most honest contractors I have dealt with. I will definitely use them again in the future. Thank you!

21:37 28 Oct 22

Niki and Damon did a great job today!! They really answered All my questions and concerns. I am very happy with the whole process and highly recommend this company.

18:27 13 Oct 22

Nikki and her crew sealed in the attic, around doors and around plumbing pipes. Then they returned to add insulation. Very professional. Great job.

Rebecca Whitaker

00:08 25 Sep 22

Blake came out and did an energy audit of my place of residence. He was very gracious and professional. He respected my request for him to remove his shoes and was patient enough to answer my questions. Thank you, Blake!

18:10 27 Jul 22

Niki crew came and explained the job details and performed very professional and in a timely manner and I was satisfied with the whole process and would recommend to anyone that is in need of the services they provide

15:55 16 Oct 21

First off these are some friendly and professional people! They came in to our home and had nothing but respect and explained things in a way that was more family/friend based than technical. BIG shout out to Mike and Ryan for the amazing help and work! They tested the house and did all the checks as well as made sure we had stuff in place. They hooked us up with a great light package that should help our energy use as well as lighting needs. Everything is top notch and amazing customer service!

20:31 18 Mar 19

I had such a great experience with Jack, Shamone, and Chad! They were extremely friendly and very professional! Jack explained what would take place the morning of my appointment and answered all of my questions! They were all very understanding of my very noisy three year old as well! Thank you again you guys for such a pleasurable experience!

Diversified Energy is fully insured and licensed - State Licensing Board for Contractors - License number: 885628