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"Good, PSNC came to inspect their work and several areas had to have more re-insulation added that was missed on the day of work. Emerald returned on a Sat. to complete" this work and the paperwork completed so that I got an energy rebate from PSNC.

-Sally T.

"Good. Very professional. Very thorough. Pricey, but worth it. Wish they had caught the problem when they fixed my drainage and sealed my basement 1.5 years below," because I am certain that it was there before because the same symptoms in house and allergies existed between service, but they took care of my 86 year old dank basement well and I will use them again, hopefully not until their 7 year warranty wears out.

-Matthew G.

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Local Articles in Raleigh

woman looking at an energy audit printout

Energy Efficiency Audits

One thing homeowners can do to save on energy costs is to have a home energy audit conducted. This will reveal where drafts are entering from outdoors and where insulation is ineffective. Energy auditors can also recommend upgrades in appliances to save energy.

Open, empty refrigerator

Follow these guidelines to cut energy waste and lower utility bills.

A blower door test identifies leaks in a home's envelope. (Photo courtesy of Ryan Potter)

Many homeowners experience energy loss in their homes due to gaps around windows and doors and a lack of insulation — a home energy audit can pinpoint the source

A home energy audit can help you assess how much energy your home consumes. An audit can also show you ways to improve efficiency.

Auditors typically use a variety of high-tech equipment such as blower doors which measure air infiltration; infrared cameras that scan to identify poorly insulated areas; and surface thermometers to find leaks and drafts.

Home Energy Audit reviews in Raleigh


Fortunately sample analysis indicated no problems. Recommended installing indoor humidity monitors to ensure air quality stays good and recommended addition energy conservation changes. All will be done.
Third time I've used them and they remain exemplary.
- Harry D.

I am going to hire to repair damage done to my crawlspace when it was treated for termites. It is expensive, but should save me significantly with home heating and air conditioning costs in the future.

The work crews (2 or 3 at a time) spent almost 4 full days in our attic and crawl space areas. They communicated well and answered any questions that we had. They took (before and after) measurements of every air vent and also ensured each vent was sealed properly. They did create some small messes and occasionally were slow to clean up but in the end ...More they left our home cleaner than when they started. represented the company very well and made an effort to make sure we were satisfied. He did not ask for payment until all the work was completed to our satisfaction. also made it easy to apply for Energy rebates. Time will tell how much savings we will get from the work but house is already more comfortable now that the attic doors don't have drafts. I would recommend this company based on my experience.
- Robert S.

I got 3 quotes from various companies that perform crawlspace incapsulation. IES was in the middle quoting around $10,000 plus they were the only one to offer a lifetime warranty. Their plan on my 1970s house was to remove all the old insulation, scrub down all the wood to remove mold, spray the wood to prevent future mold growth, wipe down all the ...More duct work and patch any holes, seal all the walls, put up insulation board on the walls, put down a thick, reflective floor cover, and several other items. This would make the crawlspace essentially like another room. The crew was very polite and professional. They arrived on time and worked diligently. After the first day's work, there was one item that was missed, so when they returned the following day I relayed that info to them and they apologized for missing it and had no problem doing some rework to fix the issue. We also had them clean and apply a mold preventative paint to all of our ductwork for an additional cost.
It has been almost a year since the work was done. we've had a very wet summer and I haven't seen any moisture in the crawlspace at all. I had bought 5 temp/humidity sensors to place around the house and crawlspace. During the damp summer, the crawlspace is usually about 5 degrees cooler than the house with a 5% higher humidity than the house. I am very pleased with the results and would recommend IES to others looking to do similar work.
- Jeff B.

The service was great and exactly as quoted/advertised. We had interviewed several companies for the work. IES was certaily the higher priced quote, but our confidence level in the quality of work they would perform was high, and very important due to serious health issues of a family member. was very helpful when he came ...More to assess and quote the job. was always available by phone and very responsive with questions throughout the scheduling and actual work process. did an exceptional job of leading the team in the actual remediation. We have a very large crawlspace (~2400 sq ft) and it was amazing to observe how efficient they were while doing an exceptional job. It was very cold the two days they came in January (yes, I'm very late in submitting my feedback!) but they worked non-stop throughout the project. When I was quoted 2 days to perform the entire remediation, I simply couldn't believe it could be done in that amount of time - but they completed the project on time. When they finished, there was no evidence of the massive amount of work (they promptly hauled all materials and old fiberglass to the dump) except for our beautifully lined crawlspace. I called about a few spots I wanted to have sealed as well, and they came right out the following week. More expensive? Yes. But if you have a serious mold problem and want to make sure the job is done right, professionally and with quality, I would highly recommend them.
- Tammy W.

came over on time and set up his equipment. While doing so, he asked me if there was any particular issue that inspired me to request an energy audit. I informed him that my house historically has humidity problems sufficient that I normally run a dehumidifier inside during the summer, in addition to the air conditioning.
...More /> Once his equipment was set up, started his testing. He inspected the interior, attic, exterior, and crawlspace.
When it was done, he informed me that there were (unsurprisingly) a lot of air leaks in my house, and showed me the IR images showing where air was being drawn in. He promised a report within a week as he was taking down his equipment.
About a week later, I got his report. Since he had mentioned some options while discussing the issues, I asked him for more detailed estimates for two of the options, which he provided promptly. I had noticed a couple of other reviews discussing that they chose cheaper options from those offered, and were not as happy as they expected to be with the results, so I asked about the relative benefits of each of the options he provided. I was satisfied with his explanation -- while he did not push heavily toward 'upselling' me to the more expensive options, he did explain how it was better than the others.
- Zac S.

IES was fantastic from fist contact through project completion. came out for the initial consult and really impressed me with his knowledge. I was also very happy that he was willing to talk technical with me. I have some experience and like to talk details, but not all providers are willing to do that.
After getting our ...More quote and making a decision to move forward, stepped in as the project manager. She was a pleasure to work with - knowledgeable, friendly, and responsive to all my questions. She set us up with an appointment for the project and let us know approximate timing through the course of the 2-day project. Since we were replacing HVAC ducts, there would be times when the A/C wasn't running. Plus we would need to run the fan continuously while the materials in the crawl space cured. It was very nice going into the project with accurate expectations.
The crew that did the work was also wonderful. They arrived on time and did high-quality work. As someone who's pretty handy, I was pleased with their work.
Overall, we've been thrilled with the sealed crawl space. We no longer have moisture or mold problems. As a bonus, the house appears to be more energy efficient. We have another job spec'd out with IES for our attic spaces, and we'll have them out as soon as we have the other constraints completed.
- Richard P.

It went very well. The tech showed up pretty much on schedule. Performed the audit and explained his process as he went. We were send a written report several days later with the audit information and assessment. We also got a quote for services to address the recommended improvements for energy efficiencies.
I was really impressed because ...More I had originally purchased as an AngiesList deal and the time had expired on my coupon. The honored the coupon with no problem or extra charges and performed the work in a timely professional manner.
We are considering the quotes and will undertake some of the projects ourselves.

- Robert S.

Energy Consultants in Raleigh

Companies below are listed in alphabetical order. To view top rated service providers along with reviews and ratings, Join Angie's List Now!

Aire Serv Heating & Air Conditioning

Falls of Neuse Rd

Ardent Contracting, Inc.

3401 Fairhill Drive

Blue Ivy Energy-Corrie Sampson

3060 El Cerrito Plaza

Brightcut Building Solutions LLC

434 Pete Thomas Rd

Bull City Electric LLC

5357 N Roxboro Rd

Carolina Comfort Air Inc

5212 US 70 Bus W

Carolina Weatherization

4824 Watkins Rd.

Cary Home Inspection

3919 Headwater Ct.

Cedarbrook Construction LLC

6932 Darcy Ln

Comfort Solutions by Frigi-Temp

112B Wheaton Ave

Cozy Bear Heating & Air Inc

313 A US Hwy 70 W


618 N Mineral Springs Rd

E2 Technologies, Inc.

145 US Hwy 70 W

ECAC, Inc.

9780 US Highway 15 501 N
Chapel Hill

EcoMaster LLC

2921 Glade Aster Ct.

Emerald Energy

PO Box 99031


107 Fawn Drive
Wake Forest

Energy Choice Center

1301 Seminole Boulevard Suite 155

Energy Pros of NC

12335 Wake Union Church Rd
Wake Forest

Express Electrical Service

4809 Landover Arbor Pl

Fan Man Inc Raleigh

1513 Ramson Ct

First Call Cleaning and Restoration

3205 NC 62 North

Green Horizon

4620 Industry Lane Suite C

Green Planet Energy Solutions

9101 Southern Pine Blvd Ste 320

Green Planet Energy Solutions

9101 Southern Pine Blvd Ste 320

Hands-On Contracting

5548 Old Still Rd
Wake Forest

Healthy Home Diagnostics

5420 Old Poole Rd

Healthy Home Restoration

6808 Branton Dr

Home Performance NC

4608 Industry Ln

Hutch Sunrooms Plus

2708 Exchange Dr, Unit A


119 Thomas Mill Rd
Holly Springs

L. D. Branch Electric

216 Canton Dr

LiveGreen Inc

3115 Heritage Trade Dr



NC Solar Now

3401-101 Atlantic Avenue

Newcomb & Company

3000 Comfort Ct.

Peak Energy Inc

PO Box 1241
Holly Springs

Prime Energy Group

PO BOX 10156

Raleigh Odd Jobs Inc.

1103 Heritage Manor Dr

RTP Electrical Services LLC

2402 Reichard Street

Southeast Power NC, LLC

298 Shipwash Drive

Southern Energy Management

101 Kitty Hawk Dr

Stetten Realty Inc

3117 Kentish Town Ln

Thermal Discovery LLC

10928 Bent Branch Dr

Thermo Direct Inc.

134 Donmoor Court

Tinted Atmospheres

104 Woodwinds Industrial Ct Suite AA

Triangle Reconstruction

1201 Alderwood ct

WEB & Associates, LLC

403 Ginkgo Trail
Chapel Hill

Woodwright Builders

1203 Bayview Ct

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