Licensed and insured since 2004 — On Top Masonry & Construction serves homeowners and businesses across Montclair and North/Central New Jersey with masonry, roofing, foundation repair, and waterproofing built to last through Jersey winters.
On Top Masonry & Construction has completed 500+ masonry, roofing, and foundation projects across Montclair, Essex County, and the surrounding New Jersey area. We’re a licensed (NJ HIC #13VH13468100) and fully insured crew — every job includes material delivery, full cleanup, and a written warranty. Our founder, Peter Mahon, leads a team of 20 tradespeople who specialize in brick, stone, roofing, and below-grade waterproofing work.
NJ HIC License #13VH13468100
Materials delivered, debris hauled, every time
We provide free affordable quotes, honest advice and an experienced service.
We offer a comprehensive range of roofing and masonry services, tailored to protect and enhance your property. With our unwavering commitment to quality and customer satisfaction, you can trust us for all your roofing needs.
Full roof replacement and new installation — asphalt, metal, and flat roofing systems, installed in 1–3 days.
Interior and exterior basement waterproofing, sump pumps, and French drains to stop leaks at the source.
Chimney repointing, crown repair, and cap installation — most repairs completed in a single visit.
Tuckpointing and repointing to stop crumbling mortar before it spreads to structural brick.
Custom stone walls, patios, and steps built to hold up through freeze-thaw winters.
Stucco repair and application that seals out moisture and matches existing texture.
Our vision is to be the leader in roofing and masonry, delivering unmatched quality and service, elevating homes, and setting new standards.
Our mission: top-quality roofing and masonry solutions, expert craftsmanship, exceptional service, and lasting community relationships.
Choosing On Top Masonry & Construction means choosing excellence, reliability, and peace of mind for all your masonry and roofing needs.
20+ Years Serving New Jersey
Every project backed by NJ HIC #13VH13468100 and a written workmanship warranty
Fixed quotes before work starts, no surprise change orders.
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Here are answers to some common queries about our roofing and masonry services. If you have additional questions, feel free to reach out to our team for personalized assistance.
If your roof is showing signs of age, such as missing or damaged shingles, leaks, or sagging areas, it might be time for a replacement. However, smaller issues like isolated leaks or minor damage may only require repairs. Our expert team can assess the condition of your roof and recommend the best course of action.
Signs that your basement may need waterproofing include water seepage or leakage, musty odors, mold or mildew growth, efflorescence (white, chalky residue on walls), and cracks in the foundation walls or floor. If you notice any of these issues, it's advisable to have your basement inspected by professionals.
It's recommended to have your chimney inspected at least once a year, preferably before the start of the heating season, to ensure it's in good condition and safe to use. If any issues are detected during the inspection, such as cracks, deteriorated mortar, or damage to the chimney crown, repairs should be carried out promptly to prevent further damage.
Stucco is a cement-based material that is applied as a plaster over a substrate, such as wood or masonry, to create a smooth or textured finish on exterior walls. Stone veneer, on the other hand, is a thin layer of natural or manufactured stone that is adhered to the surface of a wall to replicate the look of traditional stone masonry. While stucco offers versatility and durability, stone veneer provides a more authentic and rustic appearance.
We offer a wide range of roofing materials to suit every preference and budget, including asphalt shingles, metal roofing, clay tiles, concrete tiles, and more. Our experienced team will work with you to select the best material that meets your needs in terms of durability, aesthetics, and cost-effectiveness.
