Grennan Construction

Roofing, Siding, Deck Maintenance

About us

Grennan Construction has earned a reputation for honesty and integrity for over 20 years. We specialize in residential roofing, siding, and exterior remodeling. Employees of our licensed and insured company will treat you like family – providing a free estimate, and delivering prompt, courteous, and honest service. We are professional, neat, and efficient. We will follow up your project with a comprehensive customer satisfaction survey to ensure that we fulfilled every commitment and that you are 100% satisfied with the end result. We hope to hear from you soon. www.GrennanConstruction.com

Business highlights

27 years of trusted experience
Family Owned & Operated

Services we offer

Roofing, gutters, siding, James Hardie Fiber cement siding, vinyl siding, windows.

Services we don't offer

We are not offering repair or handyman services at this time. Thank you.

Amenities

Free Estimates
Yes
Warranties
Yes
Senior Discount

5%



Accepted payment methods

Check
MasterCard
Visa

Photos of past projects

Reviews

4.7326 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
83%
4
7%
3
2%
2
4%
1
4%


Rating CategoryRating out of 5
quality
4.7
value
4.8
professionalism
4.7
responsiveness
4.6
punctuality
4.7

Filter reviews by category

Showing 201-225 of 326 reviews

juanita L.
07/2016
5.0
gutter cleaning, roof cleaning
  + 0 more
unknown
Description of Work: .
Rating CategoryRating out of 5
Yes, I recommend this pro

Karen S.
07/2016
5.0
roof cleaning
  + -1 more
unknown
Description of Work: .
Rating CategoryRating out of 5
Yes, I recommend this pro

Darren P.
06/2016
5.0
roofing
  + -1 more
unknown
Description of Work: They replaced my complex roof, damaged by a severe hail/windstorm. Every step of the way, Grennan presented options and confirmed that we liked the progress. After Grennan was done, they assigned a person to address smaller issues, who worked until we were satisfied with all fixed. | |Fred Grennan was personally involved from start to finish. He was fully transparent with all estimates and never charged anything that we didn't authorize. He exceeded all of our expectations on quality and corrected some issues that existed from when our home was originally built in 1997, that we weren't aware of. Also, he patiently helped us with difficult Insurance adjusters and filings. | |To date, the roof looks like new.

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
$32,000

Response from Grennan Construction
[Member Name Removed], I hope all is well with you and your wife. Thank you for taking your time to leave a review. Your project was certainly difficult in the beginning when working with the adjusters but once we were past that phase, everything went well. Also, it is easy working for homeowners like you and your wife as you were patience, understanding and all around nice people. Thank you again for the business! Fred Grennan

Andrew H.
06/2016
4.0
roofing
  + -1 more
unknown
Description of Work: It was an ok experience. Was a little hard to get scheduled but nothing terrible. Inspection was pretty much a visual inspection and some re-caulking where needed. Not sure it's something worth 99.99. Certainly not worth the 350.00 or whatever the ad claims it costs regularly. I got the midas touch, where they end up telling me i need thousands of dollars worth of repairs etc. I did get a nice report emailed with pictures and a quote for more work to be done if desired. Clearly the motivation is to get to the homeowners house and try to get more work. I can't blame them, it's a good business strategy. | |The workers were nice and professional.

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

Yes, I recommend this pro
$99.99

Michael R.
06/2016
5.0
roofing, chimney repair
  + 0 more
unknown
Description of Work: Roof repairs, chimney repairs, very good experience, would use them again.

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
$1,500

Cynthia T.
06/2016
4.0
insulation, roofing
  + 0 more
unknown
Description of Work: Roof inspection service was good. However, follow up estimate for insulation was never received. By the time they contacted me I'd found another company that gave me an estimate and completed the service.

Rating CategoryRating out of 5
quality
1.0
value
4.0
professionalism
5.0
responsiveness
4.0
punctuality
4.0

$99

Riad C.
06/2016
2.0
gutter cleaning
  + -1 more
.
Description of Work: ..

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

Yes, I recommend this pro

MARK L.
06/2016
5.0
gutter cleaning, roofing
  + 0 more
unknown
Description of Work: Grennan Construction provided gutter cleaning service. I later hired them for roof repair. Their prices were fair and the quality of the work was good. They completed the work quickly. I would use them again.

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
$99

daniel M.
05/2016
1.0
roofing
  + -1 more
unknown
Description of Work: AFTER THE INSPECTION IT WAS SEVERAL WEEKS BEFORE I COULD A PROPOSAL IT WAS 6800 WHICH INCLUDED 3800 FOR CHIMMEY REPAIR I FOUND A COMPANY OH YOUR LIST THAT DOES THAT FOR 2800 THAT COMPANY DOES NOT HAVE THIS WORK ON THEIR BROCHURE THE OTHER THINGS LIKE VENTS HAVE BEEN THE SAME SINCE WE HAVE HAD THE HOUSE. I THINK THE $99 FOR INSPECTION IS JUST TO GET THEM IN THE HOUSE AND FIND THINGS NOT RELATED TO THE ROOF

Rating CategoryRating out of 5
value
1.0
responsiveness
1.0


Carol M.
05/2016
5.0
roofing
  + -1 more
unknown
Description of Work: They came out to fix some very minor things due to wind damage. While they were up on my large, high pitched roof, they took many pictures showing other things that needed attention. I had a wooden chimney, that was beginning to rot. They came again to repair it with vinyl siding. The price was excellent because I had other estimates. Most companies would not even go up on such a steep roof. Those who would, wanted to charge double.

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
$1,700

larry D.
05/2016
5.0
roofing
  + -1 more
unknown

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
$99.99

Rob S.
05/2016
5.0
roofing
  + -1 more
unknown
Rating CategoryRating out of 5
Yes, I recommend this pro

Bryan D.
04/2016
5.0
gutter repair, roofing
  + 0 more
.
Description of Work: .
Rating CategoryRating out of 5
Yes, I recommend this pro
$99

Mary M.
04/2016
5.0
roofing
  + -1 more
unknown

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

Eric S.
03/2016
5.0
chimney repair, roofing
  + 0 more
unknown
Description of Work: I bought the roof inspection. They inspected the garage, the roof on my house and attic. They found that my roof was in pretty good shape except for the flashing around my chimney which was just tar. They gave me an estimate to fix the issue and came back within a week or two and fixed that. Very easy to work with.
Rating CategoryRating out of 5
Yes, I recommend this pro
$119

Lisa W.
03/2016
5.0
gutter cleaning, gutter repair, roofing
  + 1 more
unknown
Description of Work: Cleaned roof and gutters from fall leaves and debris.

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
$99

kathleen T.
03/2016
4.0
gutter cleaning, gutter repair, roofing
  + 1 more
unknown
Description of Work: Cleaned gutters and inspected roof

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
$99

Daniel C.
03/2016
5.0
roofing
  + -1 more
unknown
Description of Work: Good company to work with.

Rating CategoryRating out of 5
quality
5.0
punctuality
5.0

Yes, I recommend this pro

Larry D.
03/2016
5.0
roofing, replacement windows
  + 0 more
unknown
Description of Work: Roof, door wall and two windows replaced.

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
$20,000

Hong Q.
03/2016
5.0
roofing
  + -1 more
unknown
Description of Work: Good |

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

Janis Z.
02/2016
5.0
roofing
  + -1 more
unknown

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

Tamara W.
02/2016
5.0
insulation, roofing
  + 0 more
unknown
Description of Work: Complete tear off and new roof, attic insulation. Terry Haynes is the best! Make sure he is involved with your project!!!

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
$20,000

Liz K.
02/2016
4.0
roofing
  + -1 more
unknown

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

Yes, I recommend this pro
$100

shivanandreddy S.
02/2016
5.0
remodeling
  + -1 more
unknown
Description of Work: .
Rating CategoryRating out of 5
Yes, I recommend this pro

Harold P.
02/2016
5.0
roofing
  + -1 more
unknown
Description of Work: Siding.
Rating CategoryRating out of 5
Yes, I recommend this pro

Contact information

917 Orchard Lake Dr, Pontiac, MI 48341

http://www.grennanconstruction.com

Service hours

Sunday:
Closed
Monday:
8:00 AM - 5:00 PM
Tuesday:
8:00 AM - 5:00 PM
Wednesday:
8:00 AM - 5:00 PM
Thursday:
8:00 AM - 5:00 PM
Friday:
8:00 AM - 5:00 PM
Saturday:
Closed

Licensing

Insured

Licensed*

Trade License Number
2102154879
Trade License Locale
Michigan
Trade License Authority
Michigan: Contractors
Trade License Expiration
05/31/2026

Eco-friendly Accreditations

LEED Accredited Professional
No
Energy Star Partner
No
EPA Lead-Safe Certified
Yes
Use Green Products or Work Practices
No
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

Roofing,
Siding,
Deck Maintenance

FAQ

Grennan Construction is currently rated 4.7 overall out of 5.

Sunday: Closed

Monday: 8:00 AM - 5:00 PM

Tuesday: 8:00 AM - 5:00 PM

Wednesday: 8:00 AM - 5:00 PM

Thursday: 8:00 AM - 5:00 PM

Friday: 8:00 AM - 5:00 PM

Saturday: Closed

Grennan Construction accepts the following forms of payment: Check,MasterCard,Visa
Yes, Grennan Construction offers free project estimates.
Yes, Grennan Construction offers eco-friendly accreditations.
Yes, Grennan Construction offers a 5% senior discount.
No, Grennan Construction does not offer emergency services.
Yes, Grennan Construction offers warranties.
Grennan Construction offers the following services: Roofing, gutters, siding, James Hardie Fiber cement siding, vinyl siding, windows.
We are not offering repair or handyman services at this time. Thank you.

Contact information

917 Orchard Lake Dr, Pontiac, MI 48341

http://www.grennanconstruction.com

Service hours

Sunday:
Closed
Monday:
8:00 AM - 5:00 PM
Tuesday:
8:00 AM - 5:00 PM
Wednesday:
8:00 AM - 5:00 PM
Thursday:
8:00 AM - 5:00 PM
Friday:
8:00 AM - 5:00 PM
Saturday:
Closed