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Mark Group

Insulation, Energy Efficiency Auditing, Heating and Air Conditioning,

About us

Our mission is to enhance the quality of life for our customers through the installation of quality building performance improvements. Since 1974, we have helped over two million homeowners address rooms that are always too hot or too cold, eliminate unwanted drafts and reduce unnecessarily high energy bills. We pride ourselves on the quality of service that comes from well-trained, diligent and respectful employees. Moreover, our installation crew leaders are certified by the Building Performance Institute, a national organization that sets the standard for residential energy efficiency retrofit work. Let us help you get your house in line today. Extension 685 for phone. Additional DBAs - Inspired Marketing LLC, Inspired Green. Additional phone number - (517) 321-4935.

Business highlights

51 years of trusted experience

Services we offer

Energy analysis, air sealing and insulation, attics, basements, crawl spaces, exterior walls, lighting, window installation, heating, ventilation & air conditioning (HVAC).

Amenities

Free Estimates
Yes
Warranties
Yes


Accepted payment methods

American Express
Check
Discover
MasterCard
Visa

Photos of past projects

Reviews

4.5446 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
71%
4
14%
3
6%
2
3%
1
5%


Rating CategoryRating out of 5
quality
4.6
value
4.4
professionalism
4.7
responsiveness
4.6
punctuality
4.7
Showing 26-50 of 446 reviews

Mary L.
11/2014
5.0
insulation, basement waterproofing
  + 0 more
Great, They were on time, wore things over their shoes, laid down clothes to cover my floor and rugs. Shopvac and cleaned everything didn't even know they were here. Very professional and they were very nice. Didn't stop working from the time they got her. I can feel the difference in my house the very next day I came down. I set my heat on 67 and when I came down in morning it was 39 degrees outside but my house was 70 inside. I am very pleased.
Description of Work: Sealed and insulated my crawl space and sealed my vents and some beams,

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,320

Ryland & Phyllis A.
11/2014
5.0
insulation
  + -1 more
The men were on time, professional, came back after finding a roof leak. Customer prepaid and then they returned.
Description of Work: Installed insulation in attic over the garage and over the bedrooms.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$2,879

Tadashi M.
10/2014
5.0
heating & air conditioning/hvac, energy audit
  + 0 more
It went very well. We are happy with the information provided by them. The whole Audit was done in 3 steps. 1. They came out and did a look around and asked us what our goal with with the audit. 2. The actual audit was done. 3. Then about a week later they came back again with the results. The information provided was very easy to understand the the Rep from Mark Group explained all points of the results. The Quote for the work recommend was not was bad as we thought it was going to be.
Description of Work: Energy Audit for my home.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$79

Theodare & Ted F.
10/2014
5.0
insulation, energy audit
  + 0 more
Went quite well. Delays caused by discovery of knotted tube wiring which had to be re mediated.
Description of Work: Energy audit and insulation.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$2,000

Richard H.
10/2014
5.0
insulation
  + -1 more
On the whole it went very well. Sales contact was pleasant, straight forward and factual. All representations were fulfilled. The construction work was almost exactly as planned. The crew was pleasant, communicative and efficient. We had no complaints and were pleasantly impressed.
Description of Work: Re-insulated and sealed the under roof area of my 50's era rancher.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$9,330

Randi B.
10/2014
2.0
insulation
  + -1 more
The Devere Co. Did a good job in the installation. I am unhappy with the Mark Group.
Description of Work: Had an energy audit done and recommended 2 additional neighbors. Both of them had the work done - one of them had it done in July, which should have given me $100 for the recommendation. Now it is getting to the end of October and nothing. I called my contact a month ago, never heard from him. Promises should not be made, if they do not follow through.

Rating CategoryRating out of 5
professionalism
1.0
responsiveness
1.0
punctuality
1.0


Response from Mark Group
Thank you for the privilege of your business. Please accept our sincere apology for the frustration you’ve expressed in your review; poor communication on our behalf is unacceptable and we are humbled by the challenges we’ve caused. We’ve confirmed with our Finance Department that your referral reward check is scheduled to be mailed out on Monday 10/27. Kindly, Mark Group

james M.
10/2014
5.0
basement waterproofing
  + -1 more
Very conscientious especially on the outside work was very time consuming.
Description of Work: Trouble in basement, caulking inside + outside house

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,250

John S.
10/2014
5.0
insulation
  + -1 more
Arrived on time. Very neat & clean up afterwards. Very respectful and professional.
Description of Work: Upgrade insulation in attic to OR-29 and seal leaking or open areas where heat/cold escapes and enters.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,932

Henri B.
10/2014
3.0
energy audit
  + -1 more
Our understanding was that there would be a comprehensive survey and report on the home. The reality was that the company was focused on primarily energy conservation and doing work to make the home more efficient in that regard. They took readings and checked airflow but never really identified specifically where the problem areas were or any of the readings they took. In the end there was no "report" only a detailed quote for the list of work they suggested be done. Based on the cost and the very long payback period based on their projection of utility savings we elected not to go forward with their services. The staff was responsive and was conscientious about follow up and scheduling but I really did not need three visits to accomplish what was done.
Description of Work: Home Survey

Rating CategoryRating out of 5
quality
3.0
value
4.0
professionalism
4.0
responsiveness
5.0
punctuality
5.0

$85

Response from Mark Group
Thank you for inviting us into your home to conduct a Comprehensive Home Energy Audit. Mark Group's goal is to help you achieve your initial objective to understand and improve the energy efficiency of your home. Please accept our sincere apology for the oversight on your audit report. We understand that our Northern New Jersey office has made contact and you now have the audit report in hand. We value you as a customer and thank you for the privilege of your business. Respectfully, Mark Group

JEAN SUE L.
10/2014
5.0
insulation, energy audit
  + 0 more
Both the sales rep and the two workmen were professional, friendly and knowledgeable.
Description of Work: Audited for energy use. Made recommendations. Installed various insulation.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$2,800

John G.
10/2014
5.0
electrician, heating & air conditioning/hvac, insulation, plumbing, energy audit
  + 3 more
The furnace crew took 2 full days and the insulation crew took 3 full days. These are 2 emails I sent to the company: 1/. Just wanted to convey to you that my wife and I were deeply impressed by the 2 crews that were assigned to our upgrades. The furnace crew; Brian, Todd, and Tony had the additional task of disassembling a old heater into pieces small enough to get it out through an interior stairwell. They did an excellent job and left the job site spotless. The insulation crew; Todd, Doug, and Jeremy were presented with many challenges in attempting to meet the contract specifications and always came up with innovative ideas to overcome 19th century construction techniques. These craftsmen also did an excellent job and left the job site spotless. My wife commented that they always seemed to be working and never took a break. It was a pleasure having them all work on our house. 2/. In the last two days I had 4 inspectors for the permits come out and we passed all the final inspections. The Fire, Plumbing, and Electrical Inspectors for the furnace all were impressed with the installation. They particularly liked the manner in which Brian hung and braced the intake and exhaust pipes. They all said the install was neat, clean, tight, well laid out. The Building Inspector was impressed with neat and tidy job done by the Todd and the insulation crew. Please thank them for an excellent job.
Description of Work: Preformed energy saving tests, determined what NJ state rebates where available, removed 35+ year old oil furnace and installed 96% efficiency NG furnace and provided foam and blown-in insulation to a 1840's house. Reduced air flow 26% to the level new house construction.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$10,000

Deborah C.
10/2014
5.0
insulation, plumbing, energy audit
  + 1 more
All workers arrived on time, were polite and completed work in a timely fashion. Accidentally broke our faucet while replacing flew valve & replaced it in a timely way.
Description of Work: Performed energy audit for PEPCO and replaced old with CFL bulbs and recommending upgrading insulation in attic. Sealed attic hatch door with weather stripping. Properly revent 3 bathroom exhaust vents. insulate skylights.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,248

Betty F.
10/2014
4.0
replacement windows
  + -1 more
There were a lot of issues initially and I contacted Angie’s List and you were able to help us resolve it. What happened was that I got the deal, I wanted my daughter to use it because the kind of windows that they were going to install weren’t appropriate for my house and I felt that my daughter can profit from that under the circumstances better than I could. So she took the deal and it was not so good initially because apartments were not kept but it turned out fine because they got the windows done and they were pleased with them. They honored the price for two windows. The problem was with scheduling and that sort of thing. The issue was not really honoring the commitment to come at a certain time or to get the work done by a certain time. They did a good job of installation once they did it. I only had one contact with them and I wasn’t happy with that because he wanted to do a complete inspection of the house and I was focused on the windows not so much so on insulation. So I knew that wasn’t good for me and I wasn’t happy with that interaction but here again, in all fairness my daughter was satisfied with the interaction that she had.
Description of Work: We purchased a big deal from them. It was $250 coupon for $500 worth of windows.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
3.0
responsiveness
3.0
punctuality
3.0

$250

Response from Mark Group
[Member Name], Thank you for purchasing our Windows Big Deal; we’re sorry that you were unable to use it for your home. We were happy to accommodate your daughter by transferring the discount offer and are glad to hear she is satisfied with the results. It is always our goal to deliver quality, cost-effective energy-saving measures and a positive customer experience. Please accept our sincere apology for your frustration and thank you for the privilege of your business. Kind regards, Mark Group

Renee G.
09/2014
3.0
energy audit
  + -1 more
We met with a Mark Group representative in June 2013 and decided to schedule the energy audit offered by their company. The person who performed the audit was professional and on-time. However, after they ran the audit results through their software, we did not meet the 10% energy savings to qualify for any NJ energy rebates. Therefore, we did not proceed with any of their recommendations. However, the communications with the Mark Group following the audit was very poor... emails and voice mails were ignored and appointments not kept. As late as November 2013, we were still trying to get a copy of the audit and recommendations. The Mark Group representative did say that they would refund the cost of the audit since he told us that we should meet the 10% energy savings to receive some type of NJ rebate. Finally, in September 2014, after a call to a Mark Group regional office, I was able to get a prompt refund of the cost of the audit and I'd like to thank the representative in that office for their prompt attention and responsiveness to my phone call and email. I should have escalated our request much sooner after our many emails and phone calls to the local representative were ignored.
Description of Work: Energy audit with door blower test.

Rating CategoryRating out of 5
professionalism
2.0
responsiveness
1.0
punctuality
4.0

$150

Response from Mark Group
[Memeber Name], Thank you for inviting us into your home to conduct a Comprehensive Home Energy Audit. Please accept our sincere apology for the frustration you’ve expressed in your review; poor communication on our behalf is unacceptable and we are humbled by the challenges we’ve caused. Thank you for your kind words and the privilege of your business. We will pass your “thanks” along to Tia Brooks in our Northern New Jersey office. Respectfully, Mark Group

Erik J.
09/2014
5.0
air duct cleaning
  + -1 more
Workers were on time ( to the min) and provided prompt courteous service. The workers were friendly and engaging and even recommended options that saved money.
Description of Work: Insulation, duct work sealing and installation of vapor all in the basement crawl space

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,000

Anthony F.
09/2014
5.0
insulation
  + -1 more
Very well done. Crew was very polite and friendly. Put down floor protection and completely cleaned up after they were done.
Description of Work: The Mark Group performed the home insulation evaluation recommended by PGW. Following the initial testing and evaluation they added roof vent and insulation.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$650

Bill C.
09/2014
3.0
energy audit
  + -1 more
$79 for a comprehensive Home Energy Audit that was to include: Thermal Analysis: Assess conditioned and unconditioned locations in home for convective, conductive, and radiant energy loss They brought a camera and used it around the house. I did not receive any thermal image in my report. Evidentially, someone deleted the thermal images. This was the main reason I purchased the audit?..see where my problem areas were, fix them and then check ( thermally) to see they were corrected. Health and Safety Inspection: Provide peace-of-mind by reviewing any mold, asbestos, moisture intrusion, gas or carbon monoxide leaks Did not receive much of a report in this area. Again, would need thermal images to see moisture Intrusion and hidden mold. Also, I do not remember the Mark Group using a Gas Snifter to confirm no gas leaks. We did not fire up the Gas Furnace to confirm there were no Carbon Monoxide leaks. Prioritized Recommendations for Energy Efficient Improvements: Deliver a road map to savings detailing the recommended energy efficiency improvements for your home This was provided ? well laid out, detailed report, for what corrections needed to be performed. Remediation cost was high in my opinion. Estimated payback period was 13 years for all recommendations. Without having access to the thermal images, I am not sure how they came up with the recommendations in the report. Air Infiltration Diagnostics: Measure level of air infiltration occurring in your home to obtain baseline metric for energy efficiency improvements This was performed. I learned my home was very tight and that I would need to increase natural air-circulation before performing any insulation remediation. What should have been done, in my opinion - Perform thermal analysis ( ie take pictures in all rooms) , start the infiltration test. Take another set of pictures, which would have clearly shown air infiltration when compared to 1st set of pictures. Equipment Diagnostics: Analyze and test appliances against manufacturer specifications for energy consumption This was not performed at all. This could have been valuable to determine what appliances, if any, had become energy hogs. Ie, Is my electric dryer / refrigerator energy efficient? Is my central air heat pump performing according to manufacture specs etc? Bottom line?..did not receive what was advertised in the Angie?s List promotion. Gave a overall grade of ?C? . The grade would have been ?F? but the Mark Group did offer to come back with the thermal camera. ( professionalism - "A") I am not sure if they would have done the Equipment diagnostics. I choose not to have them back since I would need to take another ½ day off from work for the analysis and another ½ day for the results. Pretty expensive investment of time to redo the work. Based on their price of the proposed work to improve thermal efficiency, I would not have selected them to do the work and thus would not have them back to document the improvements with the thermal camera. Price ? $79 would have been a great price, if they delivered what was advertised in the Angies List deal. I am somewhat disappointed in Angie?s list for this deal. Not worth $79 based on deliverables. I would not recommend the home energy audit from this company based on my experience.
Description of Work: Angie's List promotion - Home energy audit

Rating CategoryRating out of 5
quality
1.0
value
2.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

$79

Response from Mark Group
Mr. [removed member name], Thank you for the privilege of being invited into your home to conduct a Comprehensive Home Energy Audit. Please accept our sincere apology for the frustration you’ve expressed in your review. We accept full responsibility for clearing the infrared images prior to making them available to you. We understand that your time is valuable and respect your declination on the offer to re-image your home. While our pricing is competitive with big box resellers, we do not aim to offer the cheapest products/services; it is our goal to help you improve the energy efficiency and overall comfort of your home, and we do so with highly trained, skilled advisors and technicians. We are humbled by the challenges we’ve caused and remain available at your convenience. Respectfully, Mark Group

Scott K.
09/2014
1.0
heating & air conditioning/hvac
  + -1 more
Overbilled by $1000. Non-responsive to customer inquiries. Charged for work not performed. Service personnel late. Manager avoids emails and phone calls. Personnel overheard discussing how they cut corners instead of doing it right.
Description of Work: Charged for work not performed. They shuffled around attic insulation in a botched repair job to their own original install then charged me for a complete install.

Rating CategoryRating out of 5
quality
1.0
value
1.0
professionalism
1.0
responsiveness
1.0
punctuality
1.0

$1,100

Response from Mark Group
[member name removed], Please accept our apology for the frustration you’ve expressed in your review. Mark Group professionally installed work in your home in March 2012. Following damage to your roof from a fallen tree in 2014, you contacted us to repair the damaged insulation. Mark Group provided two proposals which included: (1) repair to the damaged insulation and (2) additional insulation work in a section of the attic that was not previously insulated. We separated the proposals so you could submit one to your insurance company for reimbursement. Once Mark Group received both signed proposals and a deposit for the work, we adhered to your timeline to schedule the installation. Upon completion of the work, our crew was informed that you could not pay for services rendered as you had yet to receive a check for your insurance claim. Our Operations team reached out on separate occasions to discuss payment due as well as concerns you had conveyed to your Home Performance Advisor. Once contact was made, we scheduled a customer service follow-up visit on 5/28/14. As an agreed upon resolution, our Operations Manager deducted $400 off your invoice. Mark Group stands behind the high quality of the installation. While we regret the frustration we’ve caused, we are confident that the work installed in your home will save you money and increase home comfort. Best, Mark Group

carol R.
08/2014
5.0
heating & air conditioning/hvac, insulation, water heater repair, air duct cleaning
  + 2 more
Two workers - pleasant, responsive and competent
Description of Work: Sealing all joints in air ducts Sealing top of foundation Sealing basement window framesinsulated hot water pipes Installed new swep water heater strips (front, study, and attic)

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,000

Ida K.
08/2014
5.0
insulation
  + -1 more
On time, professional, neat, courteous
Description of Work: Attic insulation and sealing

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,380

bill S.
08/2014
5.0
insulation
  + -1 more
Same morning, it went according to plan.
Description of Work: They help with attic insulation, basement air sealing and pipe insulation.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$7,000

teresa R.
08/2014
5.0
insulation
  + -1 more
It went fine, no problems, noticed big difference in home tempreture and comfort. They were all professional and respectful workers.
Description of Work: Insulate attic and 3 bath fans ventilated to go outside.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$2,664

Thomas S.
08/2014
5.0
insulation
  + -1 more
Worked with several individuals in the Mark Group - good follow up. Subcontractor, DeVry, did a good job insulating. Both groups were courteous.
Description of Work: increase attic insulation, insulate crawl space

Rating CategoryRating out of 5
quality
4.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$2,600

Robert B.
08/2014
5.0
insulation, energy audit
  + 0 more
Company representative was very knowledgeable and professional
Description of Work: Home energy audit identifying possibilities for improved insulation and more efficient use of energy at reduced cost

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$75

Keith W.
08/2014
5.0
electrician
  + -1 more
The job is still ongoing. So far, everything has been though.
Description of Work: I purchased an $85 Big Deal for a comprehensive home energy audit with blower door testing. They energy audit is complete and future work is still to be determined.

Rating CategoryRating out of 5
quality
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Contact information

216 S Bridge St, Grand Ledge, MI 48837

goinspiredgreen.com

Service hours

Monday:
9:00 AM - 5:00 PM
Tuesday:
9:00 AM - 5:00 PM
Wednesday:
9:00 AM - 5:00 PM
Thursday:
9:00 AM - 5:00 PM
Friday:
9:00 AM - 5:00 PM

Licensing

Insured
State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

*Contact business to see additional licenses.


Service Categories

Insulation,
Energy Efficiency Auditing,
Heating and Air Conditioning,
Home inspection,
Windows,
Water Heaters,
Handyman Services,
Doors,
Basement Waterproofing,
Plumbing,
Electrical,
Roofing

FAQ

Mark Group is currently rated 4.5 overall out of 5.

Monday: 9:00 AM - 5:00 PM

Tuesday: 9:00 AM - 5:00 PM

Wednesday: 9:00 AM - 5:00 PM

Thursday: 9:00 AM - 5:00 PM

Friday: 9:00 AM - 5:00 PM

Mark Group accepts the following forms of payment: American Express,Check,Discover,MasterCard,Visa
Yes, Mark Group offers free project estimates.
No, Mark Group does not offer eco-friendly accreditations.
No, Mark Group does not offer a senior discount.
No, Mark Group does not offer emergency services.
Yes, Mark Group offers warranties.
Mark Group offers the following services: Energy analysis, air sealing and insulation, attics, basements, crawl spaces, exterior walls, lighting, window installation, heating, ventilation & air conditioning (HVAC).

Contact information

216 S Bridge St, Grand Ledge, MI 48837

goinspiredgreen.com

Service hours

Monday:
9:00 AM - 5:00 PM
Tuesday:
9:00 AM - 5:00 PM
Wednesday:
9:00 AM - 5:00 PM
Thursday:
9:00 AM - 5:00 PM
Friday:
9:00 AM - 5:00 PM