01Drone Inspection
We fly the roof before quoting. You see every slope, valley and flashing on the estimate.

Full roof replacements, leak repairs, flat roofs and chimney flashing for Mendham Borough homeowners. Our own crews, GAF-certified installation, and a drone inspection on every Mendham Borough job, free with your estimate.



Mendham Borough is a small, historic village centered on Main Street, with many homes from the 1700s and 1800s near its center. Away from the core, homes are larger and mostly built in the second half of the 1900s on wooded lots. Roof work in the village often calls for materials and colors that fit older buildings.
Colonial-era and 19th century homes near the village, plus colonials and custom homes farther out. Asphalt shingle, cedar, and slate are all common.
Every Mendham Borough 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: Mendham Township
See all Morris County roofing
Chimney reflash
Skylight
Flat roof coatingExterior changes to homes in the historic zone may need review. Like-for-like repairs are often simpler than changing material.
Very old homes can have sagging rafters or plank decking. We check the structure during tear-off and fix what we find.
Wooded lots around the borough mean debris and limb damage. Clearing gutters and valleys prevents water backup.
Full replacements and repairs. Both done by our own crews, both photographed from the air.

Full tear-off
Finished HDZ roofComplete roof tear-off and engineering replacement using heavy-duty synthetic underlayments (Stinger/FeltBuster), ice & water shields, ridge ventilation, and GAF Timberline HDZ shingles.
Full removal of existing shingles down to the wooden decking, replacing any compromised wood sheets.
Installation of Stinger & GAF FeltBuster synthetic underlayment for 5x stronger tear-resistance than old felt paper.
Applied in all valleys, eaves, and penetrations to prevent water backup from NJ winter freeze-thaw cycles.
North America's #1 selling shingle with LayerLock technology and WindProven Unlimited Wind Warranty.
Engineered attic intake and exhaust ventilation to lower summer cooling bills and prevent moisture buildup.

Pipe boot reseal
Chimney flashingFast, 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.
Using thermal/moisture detection to isolate hidden leaks around valley flashing, pipe boots, and chimney junctions.
Immediate response following heavy NJ severe weather, high winds, hail, or fallen tree limb damage.
High-grade silicone coating application over EPDM/modified bitumen flat roofs for 100% waterproof seal (as seen in our photos).
Precision lead & copper step-flashing replacement to prevent recurring water intrusion.
Matching existing shingle color and replacing damaged or rotted underlying plywood decking.

Silicone restoration over EPDM and modified bitumen.

Step flashing, crickets and counter-flashing done right.

Curb-mounted skylights, ridge vents and pipe boots.

Find it, fix it, photograph it. Same-week scheduling.
Every photo below is from a Pro Gen job site. This is the same sequence your roof goes through.
01We fly the roof before quoting. You see every slope, valley and flashing on the estimate.
02Everything comes off, down to the deck. No layering new shingles over old problems.
03Rotted plywood replaced, then ice and water shield at every eave, valley and penetration.
04Heavy-duty synthetic barrier over the whole deck. Your roof is dried-in the same day.
05GAF 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.
Most full replacements in Mendham Borough 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.
Mendham Borough is a borough, and its construction office issues the roofing permit. Homes in the historic district may need Historic Preservation Commission review for changes that affect their historic appearance. Pro Gen handles the application, fees, and the final inspection for you.
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.
Yes. Emergency leak and tarp calls in Mendham Borough are dispatched the same day. We stop the water first, photograph the cause from the air, then quote the permanent fix.
The borough asks owners in the historic zone to notify staff of exterior changes that may affect a home's historic appearance. Ordinary maintenance is treated differently. Check with the borough before changing materials, and we can provide product details for the review.
Every other Morris County town we serve. Same crew, same drone, same warranty.
Tell us the address and what you're seeing. We'll fly the roof, send you the photos, and quote it straight.
Tap a deal and it rides along with your estimate request so the office has it on file before we call you back.
Take $500 off any complete tear-off and GAF Timberline HDZ replacement.
New Pro Gen customers only. Applies to full replacements.
Thank you for your service. 10% off any repair or replacement, no cap.
Military ID, DD-214, or VA card at the estimate.
5% off any job for homeowners 65 and older. Fixed-price, no surprises.
Photo ID at the estimate. Homeowner must be on the deed.
$150 off any leak or flashing repair over $500 for first-time customers.
Repairs with a total over $500. One per address.
Send a neighbor our way. When their replacement is booked, you get a $250 credit or check.
Paid after the referred job is completed. Unlimited referrals.
Aerial inspection of every slope with a written photo report you keep, whether you hire us or not.
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