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TRUSTED BY RIVERSIDE, MO HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon33
    Verified energy efficiency auditing services reviews

Top-Rated Energy efficiency auditors in Riverside - Updated Nov 2026

Avatar for Green Improvement Consulting
Green Improvement Consulting
4.9(
106
)
Home Energy Audit

Serving Riverside, MO and surrounding areas

Approved

In business since 1986

Free estimates

Warranties offered

"Outstanding customer service and work. Sean and his crew were friendly, professional, and did impeccable work performing an energy audit, blown-in insulation, crack sealing, and foam injection. They kept the work areas and the house clean throughout the process. Truly appreciative of their work and the way they did it. Thank you!"
Attic Insulation Upgrade
Attic Insulation Upgrade
Attic Insulation Upgrade
Old AC
New AC

+22

Response time1 day
Response rate89%
1 neighbors recently requested a quote
Avatar for Green Factor Insulation
Green Factor Insulation
4.6(
106
)
Energy Audit - For BusinessHome Energy Audit

Serving Riverside, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Warranties offered

"Nathan was awesome! I really appreciated his attention to detail and other improvement recommendations as part of providing an estimate for the job. Nathan is easy to work with and has excellent communications skills."
 Closed Cell Heatlok Soy 200
 Double Hung Vinyls
 Lifetime Warranty
Building in Effingham
 Rebuild sill and trim inside

+93

Response time2 days
8 neighbors recently requested a quote
Recommended by96%of homeowners
Bob Mills Heating & Cooling
5.0(
15
)
Energy Audit - For BusinessHome Energy Audit

Serving Riverside, MO and surrounding areas

In business since 1999

Free estimates

Credit card accepted

"He's a really friendly guy, very responsive to my calls, schedules me in partly because we've had a working relationship for like six years. He's done work at the house that I live in. He replaced a furnace there and the air conditioner. The day before the warranty of the air conditioner that he had installed ran out, he installed a new one and it didn't work either. He went to the local manufacturer's distribution and got a third one and it didn't work either so he went and got me a brand new upgraded unit and a discount for all the inconvenience. He's a good guy and I have no complaints whatsoever. Sometimes, some of the worker bees that he sends when he is on a job and somebody has to come and check something, they come right away but they are not necessarily as diligent as he is."
Recommended by100%of homeowners
Avatar for NRC Services, LLC
NRC Services, LLC
4.5(
6
)
Energy Audit - For Business

Serving Riverside, MO and surrounding areas

In business since 2016

Free estimates

Credit card accepted

NRC Services, LLC, is primarily focused on creating responsible, knowledgeable, and comfortable property owners. With over 10 years of experiences in the energy services and construction industry, I know the importance in a thorough, complete, and safe inspection. Coupled with ongoing training, and knowledge of how the utility industry changes, I hope to provide each individual with an inspection that can provide immediate and ongoing benefits for: \n \n -Real Estate Inspections for Purchase or Sale. \n -Ongoing Maintenance Plans. \n -Energy Efficiency Studies. \n -Construction Project Management. \n -Consulting. \n \nCall us today for a free estimate!

Closet Barn Door
Closet Barn Door
Partition Wall
Partition Wall
Finished Installation

+1

Response time1 day
Recommended by75%of homeowners
Avatar for Mammoth Heating and Cooling LLC
Mammoth Heating and Cooling LLC
4.9(
9
)
Energy Audit - For BusinessHome Energy Audit

Serving Riverside, MO and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Fantastic company!!! Mammoth removed my conventional HVAC and all ductwork while upgrading my home to an energy efficient split system.... which is amazing! My entire house is comfortable, the system is great and our overall energy bills have dropped! The Mammoth team were on top of their game and I couldn’t be happier with their service."
Agnus Arts HVAC
Agnus Arts HVAC
Agnus Arts HVAC
Additional Photos
Additional Photos

+9

Recommended by100%of homeowners
Avatar for Endeavor Home Performance LLC
Endeavor Home Performance LLC
5.0(
1
)
Home Energy Audit

Serving Riverside, MO and surrounding areas

In business since 2006

Credit card accepted

You deserve a home that is comfortable, healthy, durable, and efficient. During our standard $500 Home Performance Assessment, we will use state of the art tools and years of experience to gauge the overall performance of your home, and determine where improvements can be made. Areas of the assessment will include, air sealing, insulation, windows & doors, HVAC, and appliances. At the end of the assessment, you will receive a report with recommendations for improvements and estimated energy savings. Then if you choose to go forward with upgrades, we can provide project management, additional testing, and quality assurance to be sure the job gets done right. At Endeavor Home Performance, we believe that you deserve to feel great in your home. Our goal is to make it happen! \n \n

Blower Door Test
Fog Machine
Infrared Camera
Combustion Appliance Testing - CO
Combustion Appliance Testing - Natural Gas

+1

Response time1 day
Showing 1-10 of 20
Energy Efficiency Auditing FAQs, answered by experts

Fireplaces can theoretically help you save on heating bills if you lower the temperature throughout the rest of your home and heat only a single room that you occupy using the fireplace. However, in most cases, homeowners won’t save any money on heating bills. Gas and electric fireplace inserts could actually lead to a spike in your respective energy bills if you use them frequently, and if you don’t keep up with chimney maintenance and repairs, your traditional masonry fireplace could actually be a source of heat loss in the winter.

Costs depend on the property size, audit complexity, and whether additional testing (e.g., blower door) is included.

The three levels of home energy audits include:

  • Level 1: Review of your energy bills and home for signs of energy inefficiency and areas for improvement. The average cost range is $0.08 to $0.12 per square foot.

  • Level 2: A level 2 ASHRAE energy audit costs $0.12 and $0.35 per square foot. In-depth analysis of your energy usage and provides a report of cost-saving changes.

  • Level 3: Comprehensive analysis and detailed recommendations for ways to improve your home’s energy efficiency. A level 3 audit costs about $0.36 to $0.50 per square foot.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The number one culprit of high energy bills is older appliances, especially fridges and freezers that are left on all the time. These two appliances tend to last a long time, which is good, but it also means that newer models are usually significantly more energy-efficient due to upgraded technology. The second most common reason for a high bill is heating and air conditioning.

The Riverside, MO homeowners’ guide to energy efficiency auditing services

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