Updated: May 26, 2026
Location and Projects
Address
229 PRICE RD, Longmont, CO, 80501
Use our bidding system to
request a quote
Grabau Roofing LLC
Grabau Roofing LLC, 229 Price Rd, Longmont, CO (Owned by: Grabau Roofing Llc) holds a Special Contractor license and 23 other licenses according to the Lafayette license board.
Their BuildZoom score of 116 ranks in the top 2% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Grabau Roofing LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Grabau Roofing LLC Contact Information
Phone Number: (720) 899-2589
Edit
Address: 229 PRICE RD, Longmont, CO 80501
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Grabau Roofing LLC Longmont
Quality
116
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Grabau Roofing LLC has a BuildZoom score of 116, which places them above 98% of 55,949 contractors in Colorado.
Activity
|
26 projects
|
2025 |
|
49 projects
|
2024 |
|
16 projects
|
2023 |
Our building permit records indicate that Grabau Roofing LLC has worked on at least
91.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
88 projects
|
Roofing projects |
Analyzing permits over the last 4 years shows that Grabau Roofing LLC mostly works on
roofing project
projects.
Pricing
|
3 projects
|
< $5k |
|
35 projects
|
$5k-$20k |
|
12 projects
|
$20k-$50k |
|
5 projects
|
$50k-$100k |
|
5 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
|
2 projects
|
$500k-$1mil |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $17,100. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Grabau Roofing LLC Reviews
5 out of 5 stars, based on
2
reviews
-
By Larry S.June 7, 2021Roof installation
-
By MichaelAugust 3, 2017Verified Hire
I could not be happier with Grabau Roofing -- they did superior work, with extremely competitive pricing. I highly, highly recommend them.
The owner convinced me I was getting a great deal and when requesting bids from other roofers, none of them came across as professional and knowledgeable as Grabau did -- and the funny thing was Grabau was not even the most expensive bid. In my opinion, the best option is Grabau roofing.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Part one: approximately 115 014 square feet_x000d_ remove existing tpo and cover board down to bur system. disable existing roof system as described in assembly letter._x000d_ install one layer of 2.6 iso to meet r-30 as specified._x000d_ install crickets behind all units for enhanced drainage._x000d_ install 5 hd cover board over insulation and crickets. all insulation and crickets w... see more
Valuation:
$1,354,092
Permit #:
25-000071
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove and dispose of the existing epdm membrane leaving the poly iso roofing insulation in place. install new 60 mil ballasted epdm membrane complete with all related flashings and sealants. flash in all roof to penetrations per manufacturers specifications
Valuation:
$214,000
Permit #:
MISC-10671-2025
Status:
final
Fee:
$6,991
Permit Type:
N/A
Building Type:
N/A
Wind row existing ballast on roof to be reinstalled. cut existing membrane into 10 x 10 squares. install one layer of 5 protector hd cover board. remove and dispose of existing wall flashings. install new 060 mil ballasted black epdm as manufactured by johns manville according to all specifications and requirements. all walls will be flashed to match existing details. install new scup... see more
Valuation:
$162,514
Permit #:
MISC-10864-2025
Status:
issued
Fee:
$5,408
Permit Type:
N/A
Building Type:
N/A
Wind row existing ballast on roof to be reinstalled cut existing membrane into 10 x 10 squares install one layer of 5 protector hd cover board remove and dispose of existing wall flashings install new 060 mil ballasted black epdm as manufactured by johns manville according to all specifications and requirements all walls will be flashed to match existing details install new scuppers i... see more
Valuation:
$499,152
Permit #:
B202402653
Status:
expired
Fee:
$15,486
Permit Type:
N/A
Building Type:
N/A
Tpo roofing over metal retrofit. approximately 23 982 sf remove existing single ply roof system. inspect existing metal deck for integrity prior to installing new roof system install 1.0 eps fill in flues of metal deck. r-38 below roof deck install 1/2 densdeck over entire roof surface install new mechanically attached white tpo as manufactured by johns manville according to standard ... see more
Valuation:
$246,416
Permit #:
B202405013
Status:
issued
Fee:
$7,898
Permit Type:
N/A
Building Type:
N/A
**all structures must be permitted separately** total tear-off & reroof of single family dwelling 20 squares of dimensional shingles on a pitch represented as 6/12. all roof materials shall be installed per manufacturer’s specs. mid-roof inspection is required if 1) pitch is less than 4/12 or 2) for any roof type other than asphalt shingles (regardless of pitch). pre-roof inspection r... see more
Valuation:
N/A
Permit #:
RFG2025-00744
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building fl2 total tear-off & reroof 376 squares of epdm on a pitch represented as < 2/12. all roof materials shall be installed per manufacturer’s specs. pre-roof inspection required for overlays if pitch is less than 4/12. mid-roof inspection for all re-roofs required if pitch is less than 4/12. class a roof assembly as tested in accordance with astm standard e 108 or ul standard 79... see more
Valuation:
N/A
Permit #:
RFG2025-00003
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
This is for building fl3. total tear-off & reroof 214 squares of epdm on a pitch represented as < 2/12. all roof materials shall be installed per manufacturer’s specs. pre-roof inspection required for overlays if pitch is less than 4/12. mid-roof inspection for all re-roofs required if pitch is less than 4/12. class a roof assembly as tested in accordance with astm standard e 108 or u... see more
Valuation:
N/A
Permit #:
RFG2025-00002
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
3850 n elm st - alsco - roofing remove existing roof system to metal deck. install one layer of self-adhered vapor barrier over metal deck. install two layers of 2.6 iso to achieve r-30 as required. install 5 hd cover board over insulation. all insulation will be fastened at 16/24/32 install new 60 mil fully adhered white as manufactured by johns manville according to standard specifi... see more
Valuation:
$652,368
Permit #:
2023-LOG-0006938
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove existing roof system to metal deck. install one layer of self-adhered vapor barrier over metal deck. install two layers of 2.6 iso to achieve r-30 as required. install full eps taper over base layer of insulation as shown on attached drawing. install 5 hd cover board over insulation. all insulation will be fastened at 16/24/32. install new 60 mil fully adhered white as manufact... see more
Valuation:
$676,624
Permit #:
2023-LOG-0008323
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Scope of work: install 60 mil fully adhered white tpo over area shown on attached overview approximately 25 962 sf. remove existing roofing down to concrete deck. first layer durolast over 1/2 cover board bottom layer built up roof over a metal deck install two layers of 2.6 iso to meet r-30 as required by city of longmont install iso crickets to scuppers and interior drains install 5... see more
Valuation:
$368,848
Permit #:
B202306649
Status:
expired
Fee:
$11,571
Permit Type:
N/A
Building Type:
N/A
Remove existing durolast roof with coverboard. remove existing parapet cap and set aside for re-use. peel existing epdm off 3 base layer of insulation. spoke with lisa keil who assured me it would be ok to leave the existing iso in place for this project as long as we follow the new epdm manufacturer's guideline for installation. install one layer of 2.6 iso to achieve r-30 in additio... see more
Valuation:
$189,406
Permit #:
B2306757
Status:
expired
Fee:
$4,614
Permit Type:
N/A
Building Type:
N/A
Tear off 1of layer and install 23 squares of johns manville 60 mil fully adhered white tpo. install required ice and water shield. install per manufacturers high wind specifications. r30 minimum insulation maintain positive drainage. license holder to do the work
Valuation:
$50,892
Permit #:
B2406420
Status:
expired
Fee:
$1,520
Permit Type:
N/A
Building Type:
N/A
Remove and dispose of the existing two layers of asphalt shingles install one course of ice and water shield at the eaves and in the valley locations install one layer of 30 lb felt dry in install new step flashing at sidewall locations install new duration storm dimensional asphalt shingles as manufactured by owens corning shingle color to be chosen by owner prior to job start remove... see more
Valuation:
$28,718
Permit #:
B202404862
Status:
complete
Fee:
$1,173
Permit Type:
N/A
Building Type:
N/A
Sweep and dispose of the existing rock on built up roof install one layer of 5 hd cover board. mechanically attached at 16/24/32 install new 60 mil fully adhered black epdm roof system as manufactured by johns manville in accordance to all specifications and requirements. flash all walls up and over with new 60 mil epdm re-use existing parapet cap metal install new drip edge metal alo... see more
Valuation:
$17,706
Permit #:
B202401758
Status:
expired
Fee:
$755
Permit Type:
N/A
Building Type:
N/A
***all structures on the property must be permitted separately*** total tear-off & reroof of commercial property 485 squares of epdm on a pitch represented as <2/12. all roof materials shall be installed per manufacturer’s specs. mid-roof inspection required if pitch is less than 4/12. all roof covering materials shall be listed as class a as tested in accordance with ul standard 790 ... see more
Valuation:
N/A
Permit #:
RFG2024-00728
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Total tear-off of roofing material and damaged decking on mfd. installing 4 squares of two layers of 2.6-inch poly iso roof insulation mechanically attached with insulation screws and plates. installation of new 1/2-inch cover board set in hot asphalt and new four ply built up roof system over prepared substrate. install flood coat of hot asphalt and immediately embed gravel surfacing... see more
Valuation:
$0
Permit #:
RFG2024-00308
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Total tear-off & reroof of commercial building 78 squares of epdm on a pitch represented as <2/12. all roof materials shall be installed per manufacturer’s specs. mid-roof inspection required if pitch is less than 4/12. remove and dispose of the existing adhered epdm roof membrane leaving the existing dens deck fire barrier in place. remove and dispose of abandoned roof top penetratio... see more
Valuation:
N/A
Permit #:
RFG2024-00122
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Scope of work: remove and dispose of the single ply membrane and built-up asphalt roof system to wood decking. remove and dispose of the existing wall flashings. remove and dispose of abandoned roof top penetrations. install two layers of 2.9-inch poly iso roof insulation to achieve r-33. install one layer of 1/2 inch dens deck fire barrier per city of boulder code. mechanically attac... see more
Valuation:
$0
Permit #:
RFG2024-00085
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Total tear-off & reroof (remove existing roofing down to concrete deck) 310 squares of johns manville 60 mil fully adhered white tpo on a pitch represented as <2 12. all roof materials shall be installed per manufacturer’s specs. pre-roof inspection required for overlays if pitch is less than 4/12. mid-roof inspection for all re-roofs required if pitch is less than 4/12. class a roof ... see more
Valuation:
N/A
Permit #:
RFG2024-00002
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
158
BZ Score
$8.1K
Avg Project
-
Projects
172
BZ Score
$10K
Avg Project
-
Projects
157
BZ Score
$7.3K
Avg Project
-
Projects
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Grabau Roofing LLC License info
Verified License
| License # | 25-000026 |
| Status | Active |
| City | Lafayette |
| Type | Special Contractor |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Grabau Roofing LLC at the City of Lafayette.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | D Roof Covering/Waterproofing |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | R-1946 |
| Status | Active |
| City | Fort Collins |
| Type | Sub Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Grabau Roofing LLC at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC5234 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Grabau Roofing LLC at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | LIC-0007731-GENDROF |
| Status | Active |
| City | Boulder |
| Type | General |
| Class | Class D-2 Roofing |
| Date Issued | 09-21-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Grabau Roofing LLC at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | LCC2015016527 |
| Status | Active |
| City | Thornton |
| Type | Class D Roofing Expires 2026 10 09 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Grabau Roofing LLC at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Aurora |
| Type | Roofing Contractor |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | R120542 |
| Status | Active |
| County | Douglas County |
| Type | Roofing |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for Grabau Roofing LLC at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | D40029 |
| Status | Active |
| City | Littleton |
| Type | Contractor |
| Date Issued | 02-02-2026 |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Grabau Roofing LLC at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CON-09-7162 |
| Status | Active |
| County | Boulder County |
| Type | New Roofing, Re Roofing |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Grabau Roofing LLC at the Boulder County Land Use Department.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | SPC0596339 |
| Status | Active |
| City | Lafayette |
| Type | Special Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2021. Check the current license status of Grabau Roofing LLC with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Lafayette |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Grabau Roofing LLC with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | SPC0596339 |
| Status | Active |
| City | Lafayette |
| Type | Special Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2021. Check the current license status of Grabau Roofing LLC with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CL1450 |
| Status | Active |
| County | Larimer County, Co |
| Type | Roofing |
- When BuildZoom last verified this license, it had an expiration date of May, 2017. Check the current license status of Grabau Roofing LLC with the Larimer County
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | LIC-0007731 |
| Status | Active |
| City | Boulder |
| Type | General Contractor |
| Class | Class D-2 Roofing |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Grabau Roofing LLC with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 1986 |
| Status | Active |
| City | Arvada |
| Type | Bid Contractor, Roofing |
- When BuildZoom last verified this license, it had an expiration date of September, 2016. Check the current license status of Grabau Roofing LLC with the The City of Arvada, Colorado
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 0007731 |
| Status | Active |
| City | Boulder |
| Type | General Contractor Class D-2 Roofing |
- When BuildZoom last verified this license, it had an expiration date of September, 2016. Check the current license status of Grabau Roofing LLC with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 20-096339 |
| Status | Inactive |
| City | Lafayette |
| Type | Special Contractor |
- According to the City of Lafayette, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Grabau Roofing LLC at the City of Lafayette.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | SPC1401933 |
| Status | Inactive |
| City | Lafayette |
| Type | Special Contractor |
- According to the City of Lafayette, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Grabau Roofing LLC at the City of Lafayette.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Jefferson County |
| Type | Roofing Contractor |
- According to the Jefferson County Licensed Contractors, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
- According to the City and County of Denver Community Planning and Development, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 080930026 |
| Status | Inactive |
| City | Westminster |
| Type | General Contractor |
- According to the City of Westminster, Colorado, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Grabau Roofing LLC at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | C010-0151 |
| Status | Inactive |
| County | Clear Creek County |
| Type | Contractor |
- According to the Clear Creek County, CO, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Grabau Roofing LLC at the Clear Creek County, CO.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC1986 |
| Status | Inactive |
| City | Arvada |
| Type | Contractor |
- According to the The City of Arvada, Colorado, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Grabau Roofing LLC at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
116
BuildZoom Score
Insured
| Insurer | United Specialty Ins Co/Pinnacol |
421
Permits
- Building permit records show that Grabau Roofing LLC has worked on 421 permitted projects.
Grabau Roofing LLC Employees
EG
Eric Grabau
Owner
GI
Grabau Roofing Inc
Owner
GL
Grabau Roofing Llc
Owner
RG
Robert Griffin
Owner
In 2010 our roof was damaged in a hail storm and we contracted with Grabau Roofing after they were highly recommended by a friend. Everything was completed on time and we didn’t have any problems until the roof began leaking after a severe rainstorm in April of 2021.
I called Grabau on May 3, 2021 about the problem and was extremely impressed as they sent out a repairman the very same day. He accessed the problem and fixed it the same day. I was pleasantly surprised that he did not charge us anything for the repair. About a month later we had another smaller leak and again they sent out a repairman on short notice. He fixed the problem and again did not charge us for the repair.
I couldn’t be happier that Grabau stands behind their work even when it’s decade after installation. They have my highest recommendation and I know you’ll be very satisfied with their quality work and incredible service after the installation.