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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 1-25 of 446 reviews

Shawn G.
03/2016
5.0
energy audit, heating & air conditioning/hvac
  + 0 more
It went great... but this company is no longer in business in the US. So we could not have them do the home energy upgrades. If they were still around we likely would have went with them!
Description of Work: The provider came and installed all the products associated with the home energy audit, and the Nest Thermostat. They showed us how to use it. And, finally, they did a comprehensive energy audit. They had a whole team involved in this, and found all the areas where our home energy efficiency could be improved.

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

$299

Marielena A.
02/2016
1.0
insulation
  + -1 more
The provider never ever contact me
Description of Work: Never call or made a appointment
Rating CategoryRating out of 5
$59

Jon H.
08/2015
5.0
energy audit, insulation
  + 0 more
They did a nice job putting together an efficiency audit and explaining what they'd like to do. The price wasn't cheap, but they were flexible in detailing the different pieces of the overall bid. They were a little persistent about closing the deal, but my wife and I had to prioritize finances elsewhere in our new house. We intend on refreshing the estimate and doing the work sometime in the near future.
Description of Work: Home energy efficiency audit

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

Yes, I recommend this pro
$50

patricia B.
07/2015
4.0
energy audit
  + -1 more
It was just the $99 big deal that I paid. They didn’t do any work, they just came. They were okay. They did contact me. They came when they said they would. I will probably not use them again because I just had no work done.
Description of Work: I used the big deal of Mark Group. They just came and gave me an evaluation and that was as far as it went, it went nowhere.

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

$99

Betty and Kent R.
06/2015
2.0
insulation
  + -1 more
He was very knowledgeable about his service, but we took a different route.
Description of Work: Did not need the services he suggested.

Rating CategoryRating out of 5
quality
2.0
value
3.0
professionalism
2.0
responsiveness
2.0
punctuality
2.0

Yes, I recommend this pro

Lea T.
05/2015
4.0
energy audit, insulation
  + 0 more
The audit was detailed and informative, but the cost of having them do the improvements was too high. I had my house insulated by a different company.
Description of Work: Did an energy audit for my house.

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

$100

James T.
04/2015
4.0
insulation
  + -1 more
As above. We were interested to know what type of work would be done to help our draft issues and the cost but they never rescheduled the appointment and we ended up hiring someone locally to carry out the work.
Description of Work: Carried out an analysis of the building and worked out where the issues were. Ran some tests including using the blowers. Guy doing the work was very helpful. Follow up appointment arranged but had to cancel...never to be heard from again.

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

Yes, I recommend this pro
$85

Robert P.
03/2015
5.0
energy audit
  + -1 more
The big deal service purchased on 21st February of 2013 of 75 dollars for comprehensive home energy audit worked out great. I would grade them 'A's all across the board. I would use them again. That was a good experience. There were no additional charges other than the 75 dollars big deal price.
Description of Work: They came out about a week after the big deal purchase. They really showed me some points in my house that they were leaking energy.

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

Julia W.
03/2015
3.0
insulation
  + -1 more
Initial person was too chatty, too much information, overwhelming. Later more succinct. Workers who did test & insulation (blower door test to reveal air leaks). Workmen were sufficient and polite. Two years later discovered they had caulked Marvin windows which should NOT be caulked in order to wash them w/ moveable parts. It cost me $175 to have them repaired or caulking removed. This was done & I submitted a bill 11/13/14 and have not been reimbursed yet. Have called 2x's to remind, last time man said he thought it was done and he would see about it. That was 3 weeks ago the last time and 7 weeks from the first reminder. It is now 2/24/15.
Description of Work: Initially assessments insulation in attic (knee wall), crawl space; attic - remove batting from ceiling: band joist insulating in basement: sealing package, doors & windows. 2" cellulose in attic & knee floor: Poly 150 board on doors to attic or knee wall before insulating performed a

Rating CategoryRating out of 5
value
3.0
professionalism
3.0
responsiveness
1.0
punctuality
2.0

$4,149.88

Charlotte E.
02/2015
4.0
insulation
  + -1 more
What they said they were going to do, they didn't do. Their prices were high for what we were going to get. They were all personable, very personable people. To me, it seemed like they were awfully high.
Description of Work: The Mark Group did an energy audit. They looked at how much insulation was in the attic. They did a blow test and they looked at the appliances.

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

$100

Anthony R.
02/2015
5.0
energy audit
  + -1 more
It went pretty well. My house didn't get any warmer, because I discovered that I needed windows. For some reason, they couldn't tell me that I needed windows. I put some plastic over some of the windows, and the change was almost instant. I would have rather put the money I spent for the insulation into putting in new windows. They were professional, and they did a good job. They just missed that I needed windows instead of insulation.
Description of Work: Energy efficiency. They pumped insulation.

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

$4,800

Michael N.
01/2015
3.0
energy audit, insulation
  + 0 more
The Mark Group was great in the beginning. I had a home energy audit performed. The representative was very professional and friendly. I scheduled to have work performed and it was scheduled for 2 months later. The scheduler called me the morning of the service appointment and canceled. Their crew had fallen behind. After multiple attempts of calling Mark Group, I never received a call-back to reschedule. Great up-front service and sales team. Poor scheduling and administrative team.
Description of Work: Home Energy Audit & Scheduled insulation/sealing service.

Rating CategoryRating out of 5
quality
4.0
value
4.0
professionalism
3.0
responsiveness
1.0
punctuality
1.0

$4,000

Chris T.
01/2015
2.0
air duct cleaning, energy audit
  + 0 more
OUT OF BUSINESS 12/20/14...the audit itself went well, and the follow up appointment was very informative. we scheduled an appointment to have the recommended work done, only to get a call the day before that they have gone out of business in the US. the guy who called me said the parent company in the UK could no longer support the US company. they arranged for another company to honor their estimate, but we haven't scheduled the work yet.
Description of Work: Energy audit

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

$400

Nicholas Y.
01/2015
1.0
insulation
  + -1 more
Met with company rep to do an energy audit. He took my $100 and scheduled a date for the audit. On the scheduled date, no one showed up. No one will return calls or respond to e-mails. DO NOT DO BUSINESS WITH THIS COMPANY.
Description of Work: Nothing - never showed up for scheduled appointment

Rating CategoryRating out of 5
professionalism
1.0
responsiveness
1.0
punctuality
1.0

$100

JON & CHARYL F.
01/2015
1.0
energy audit, insulation
  + 0 more
They indicated in the "Big Deal" that they were going to do a blower test (which is pretty essential for energy audit). However no blower test was done as part of the inspection. They didn't provide any report. They didn't show up for the follow up. I suspect that they are much more interested in selling their services as part of the Audit. However, as they didn't do a proper audit and as they didn't follow up I can't be certain.
Description of Work: 1. Turned up to do an audit but without doing a blower test. 2. Failed to provide audit report. 3. Did not turn up for the follow up.

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

$59

Donna F.
01/2015
5.0
insulation
  + -1 more
Excellent service, from initial visit for estimate through completion of work.
Description of Work: Install insulation and vents.

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
$5,581

RICHARD M.
01/2015
1.0
electrician, energy audit
  + 0 more
They came out and did the energy audit. They gave me the results and prices to upgrade our house. Totaling in over $3,000. I paid $1,753 as a down payment in the form of a check. We thought we were going to get the work done at the end of December. They have cashed the check and now won't return my calls. I have heard the company was going to be bought out. Now the phone number that we have for them has been disconnected. We feel we got baited into it.
Description of Work: I purchased the Big Deal $85 for Comprehensive Home Energy Audit with Blower Door Testing

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

$1,838

Debra S.
01/2015
1.0
insulation
  + -1 more
I paid $475 to have an energy audit performed in early December, with the intention of getting the report, and having the recommended work performed (Added insulation, etc., ) A techician came to perform the audit, and he did do so, but I had a hard time understanding him verbally. I wasn't too concerned at the time, since I had been told that I would get a full report emailed to me. It never arrived, and when I started calling the company, every extension I tried said "message box full." I've tried calling, emailing, and have asked for a refund, but have gotten no response at all. I went back to Angie's list, where I got the original referral, and the Mark Group had vanished from their list. I took the extra step of calling Angie's list, explained the situation to the customer service person, who said he would research it and have someone call me back. I have not heard back, in a week. I checked again, and Mark Group is back on the list, but with an address in the Midwest. A person at the end of the that phone number told me that this new company was taking over in some way, but could not be more specific. If I were you, I would not bother. Obviously, Mark Group has imploded in some way, around the middle or end of December, with no warning. I charged the audit fee on my credit card, and have disputed the charge, so i am hoping to get my money back from my credit card company, but it shouldn't have to work that way. Shame on you, Mark Group, for continuing to take people's money, when you had to know that one week later you were going out of business. The least you could do would be to change the outgoing messages on the phone, to save people like me, and the above reviewer, from spending even more time calling over and over.
Description of Work: Energy Audit

Rating CategoryRating out of 5
quality
1.0
value
1.0
professionalism
1.0

$475

Theodore M.
01/2015
3.0
energy audit
  + -1 more
I wasn't as impressed. They did a thorough audit, but the report seemed to be incorrect. I noticed this and brought it to their attention but it wasn't fixed.
Description of Work: I purchased a Big Deal from them for an energy efficiency audit of my house.
Rating CategoryRating out of 5

Brian B.
01/2015
1.0
insulation
  + -1 more
Left 3 messages and called other times. Sent original email with scheduling dates. Provider never reached out to schedule an appointment.
Description of Work: .
Rating CategoryRating out of 5
$39

Brian W.
01/2015
5.0
energy audit, heating & air conditioning/hvac, insulation, plumbing, water heater repair, replacement windows
  + 4 more
The audit went well. The follow-on work (water heater replacement, heat pump replacement, and caulking). They did a pretty good job. They did sub out the water heater and heat pump parts. The new water heater had a heat pump unit on it too. The water heater had an alarm that went out and was eventually replaced. The subs did test my patience when they started late and ended even later than they said they would. I eventually told them they had to get out at a certain time. I took a year to write this because I wanted to back it up with cost savings info. Unfortunately, the jury is still out on whether or not the system is paying for itself.
Description of Work: Energy Audit and made an Energy Star Home

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

Yes, I recommend this pro
$75

Lysander C.
12/2014
4.0
insulation
  + -1 more
Work went well. Workers were very professional. The issue would be with price as I thought it was on a high side.
Description of Work: Install insulation in attic and sealed all openings.

Rating CategoryRating out of 5
quality
5.0
value
2.0
professionalism
5.0
responsiveness
3.0
punctuality
5.0

Yes, I recommend this pro
$9,000

Gerard T.
12/2014
5.0
energy audit
  + -1 more
It was a Big Deal purchase. It went well. They were professional. They came by, did their thing and he gave me an offer. He was good. There was no additional cost; it covered everything. They came within a month after the purchase was made. I don't know yet if I'll use them in the future.
Description of Work: They analyzed my home and made recommendations to improve the 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
$85

Sam F.
12/2014
5.0
energy audit
  + -1 more
The gentleman who conducted the audit was thorough and professional. The audit itself was informative. I went ahead and bought the service they recommended during the audit which was increasing the insulation in my attic. I was more than happy with the service. They forgot something during the installation of the insulation but the manager was prompt in rectifying the situation.
Description of Work: Energy audit on my home.

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
$75

Melissa W.
11/2014
5.0
energy audit, insulation
  + 0 more
The initial energy audit took ~4 hours and the technician, Andre was punctual, professional and sat down with me to explain the process at the beginning and end of the audit. I then met with a manager the following week to review the results of the audit and the proposed services. I was also informed of the state energy rebate and the availability of a 0% interest rate loan to have the work performed. I qualified for a $2,000 rebate and a $5,000 loan. I elected to have all proposed services performed. The loan process was automated, efficient and the scheduling process was efficient. Mike and Devin arrived on time, were professional and considerate of my home as the spent 3 days insulating my garage ceiling, attic and crawl space. Baffles were installed in the rafters to ensure proper ventilation of the attic, whilst all areas contacting the inside of my home ("the envelope") were sealed and insulated to code(and then some), including foam and blown in insulation. In the garage ceiling (below the living room), the 10" space only had 6" of insulation. Holes were drilled in the drywall and insul ation was blown in. The holes were then patched and spackled (not sanded). All seams between the cinder block walls and drywall were sealed with foam and the exposed pipes were wrapped. A manager came out the following week to inspect the work performed. He noted several punchlist items and deferred the blower door test until these items were completed. This was scheduled promptly and completed achieving the targeted airflow reduction in the proposal. This report is being sent to the state to verify the rebate and my home may be selected for a state audit. Overall I am very pleased with the work performed. My home holds the heat much more effectively. I highly recommend the Mark Group.
Description of Work: Home energy audit & follow-up insulation service

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
$8,225

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