01Drone Inspection
We fly the roof before quoting. You see every slope, valley and flashing on the estimate.
Mercer County, New Jersey
Roofer in Pennington
Repair & Replacement
Full roof replacements, leak repairs, flat roofs and chimney flashing for Pennington homeowners. Our own crews, GAF-certified installation, and a drone inspection on every Pennington job, free with your estimate.
How a Pennington roof gets doneReal Pro Gen jobs
1Tear-off
2Dried-in
3Finished
Leak response
Same day
Drone inspection
Free with estimate
Warranty
50-yr GAF
Crew
In-house
Roofing in Pennington
Why Pennington homeowners
call Pro Gen.
Pennington is a small borough surrounded by Hopewell Township, home to The Pennington School. Its Crossroads Historic District along Main Street and Delaware Avenue holds homes from the 18th, 19th, and early 20th centuries, while the rest of the borough has a mix of older and mid-century houses on quiet, tree-lined streets.
Historic homes with steep gables, dormers, and porches in the center, plus mid-century and newer single-family homes with asphalt shingle roofs.
Every Pennington estimate starts with a drone flight. You get the photos whether or not you hire us, so you know exactly what's up there before you spend a dollar.
Neighboring towns we also roof: Hopewell Township
See all Mercer County roofing
Chimney reflash
Skylight
Flat roof coatingLocal conditions
What we check on Pennington roofs
Crossroads Historic District
Street-facing exterior work in the district may require a Certificate of Appropriateness from the borough's Historic Preservation Commission.
Tree canopy
Mature trees across the borough keep gutters full and drop limbs during storms.
Older roof framing
Historic homes may need decking and rafter repairs uncovered during a replacement.
What we do
Two jobs.
Done properly.
Full replacements and repairs. Both done by our own crews, both photographed from the air.
Pro Gen job site
Dried-in, day one
Full tear-off
Finished HDZ roof50-Year Non-Prorated Warranty50-Year GAF Material + 10-Year Workmanship
Complete Roof Replacement System
Complete roof tear-off and engineering replacement using heavy-duty synthetic underlayments (Stinger/FeltBuster), ice & water shields, ridge ventilation, and GAF Timberline HDZ shingles.
01
Complete 100% Tear-Off & Deck Inspection
Full removal of existing shingles down to the wooden decking, replacing any compromised wood sheets.
02
Synthetic Underlayment Protection
Installation of Stinger & GAF FeltBuster synthetic underlayment for 5x stronger tear-resistance than old felt paper.
03
GAF WeatherWatch Ice & Water Shield
Applied in all valleys, eaves, and penetrations to prevent water backup from NJ winter freeze-thaw cycles.
04
GAF Timberline HDZ Architectural Shingles
North America's #1 selling shingle with LayerLock technology and WindProven Unlimited Wind Warranty.
05
Cobra Ridge Ventilation & Soffit Airflow
Engineered attic intake and exhaust ventilation to lower summer cooling bills and prevent moisture buildup.
Typical range
$7,500 - $22,000+
On site
1 - 2 Days Complete
Pro Gen job site
Leak repair, aerial check
Pipe boot resealChimney flashingFast 1-2 Hr Dispatch10-Year Workmanship Guarantee
Roof Repair & Emergency Leak Service
Fast, reliable roof leak diagnostics and structural repair across all North New Jersey towns. Available 24/7 for storm damage, emergency tarping, flashing leaks, and flat roof repairs.
01
Active Leak Diagnostic & Repair
Using thermal/moisture detection to isolate hidden leaks around valley flashing, pipe boots, and chimney junctions.
02
24/7 Emergency Storm Tarping
Immediate response following heavy NJ severe weather, high winds, hail, or fallen tree limb damage.
03
Flat Roof Coating & Sealing
High-grade silicone coating application over EPDM/modified bitumen flat roofs for 100% waterproof seal (as seen in our photos).
04
Chimney Cricket & Flashing Repair
Precision lead & copper step-flashing replacement to prevent recurring water intrusion.
05
Single Shingle & Plywood Deck Repair
Matching existing shingle color and replacing damaged or rotted underlying plywood decking.
Typical range
$350 - $1,850
On site
2 - 6 Hours
Also on every truck
Flat Roof Coating
Silicone restoration over EPDM and modified bitumen.
Chimney & Flashing
Step flashing, crickets and counter-flashing done right.
Skylights & Vents
Curb-mounted skylights, ridge vents and pipe boots.
Leak Repair
Find it, fix it, photograph it. Same-week scheduling.
How a Pro Gen roof gets built
Five steps. One crew.
Zero shortcuts.
Every photo below is from a Pro Gen job site. This is the same sequence your roof goes through.
0102Full Tear-Off
Everything comes off, down to the deck. No layering new shingles over old problems.
03Deck & Ice Shield
Rotted plywood replaced, then ice and water shield at every eave, valley and penetration.
04Synthetic Underlayment
Heavy-duty synthetic barrier over the whole deck. Your roof is dried-in the same day.
05Shingles & Final Flight
GAF architectural shingles, ridge vent, cleanup, then a final drone pass you get to keep.
Most residential replacements are torn off, dried-in and shingled within one to two days.
Pennington questions
Roofing questions from Pennington
How much does a new roof cost in Pennington?
Most full replacements in Pennington land between $7,500 and $22,000 depending on roof size, pitch, layers to remove, and the shingle you choose. Repairs usually run $350 to $1,850. The drone inspection gives you an exact number, free.
Do I need a permit to replace a roof in Pennington, NJ?
Pennington is a borough, and its construction office issues the roofing permit. Homes in the Crossroads Historic District may also need a Certificate of Appropriateness from the Historic Preservation Commission. Pro Gen handles the application, fees, and the final inspection for you.
How long does a roof replacement take in Pennington?
Most homes are torn off, dried-in and shingled in one to two days. Larger or more complex roofs can run a third day. Your roof is never left open overnight.
Can you fix a leak in Pennington today?
Yes. Emergency leak and tarp calls in Pennington are dispatched the same day. We stop the water first, photograph the cause from the air, then quote the permanent fix.
Does my Pennington roof replacement need historic approval?
If your home is in the Crossroads Historic District, street-facing changes may need a Certificate of Appropriateness. We can help you prepare material and color details for the commission's review.
Mercer County
Also roofing near Pennington
Every other Mercer County town we serve. Same crew, same drone, same warranty.
Free estimate
Ready when you are,
Pennington.
Tell us the address and what you're seeing. We'll fly the roof, send you the photos, and quote it straight.
Deals & promotions
Current offers.
Claim one with your estimate.
Tap a deal and it rides along with your estimate request so the office has it on file before we call you back.
- $500 off
Full roof replacement
Take $500 off any complete tear-off and GAF Timberline HDZ replacement.
- For
- New customers
- Code
- NEWROOF500
New Pro Gen customers only. Applies to full replacements.
- 10% off
Veterans & active military
Thank you for your service. 10% off any repair or replacement, no cap.
- For
- Veterans, active duty, reserves
- Code
- VET10
Military ID, DD-214, or VA card at the estimate.
- 5% off
Senior homeowners 65+
5% off any job for homeowners 65 and older. Fixed-price, no surprises.
- For
- Homeowners age 65 and over
- Code
- SENIOR5
Photo ID at the estimate. Homeowner must be on the deed.
- $150 off
Your first repair
$150 off any leak or flashing repair over $500 for first-time customers.
- For
- First-time customers
- Code
- FIRSTFIX150
Repairs with a total over $500. One per address.
- $250 credit
Refer a neighbor
Send a neighbor our way. When their replacement is booked, you get a $250 credit or check.
- For
- Past customers
- Code
- NEIGHBOR250
Paid after the referred job is completed. Unlimited referrals.
- Free
Drone inspection & photo report
Aerial inspection of every slope with a written photo report you keep, whether you hire us or not.
- For
- Every homeowner
- Code
- FREEDRONE
Owner-occupied homes in our 13 counties.
Mention the code when we come out for the estimate. One offer per household, cannot be combined with other offers. Proof of eligibility required for veteran and senior discounts.
Questions? (862) 222-1016