Mount Prospect is where Leaders Roofing Corp was founded, and it's where we still operate from today. When you hire us in Mount Prospect, you're hiring a contractor who lives and works in the same community — not a regional franchise dispatching crews from two counties over.
Leaders Roofing Corp was founded in 1996 by Jan Koszyk, and Mount Prospect has been our home for all of it. Our office is here. Our crews live here. When something goes wrong on a job or a homeowner needs a follow-up, we don't have to travel — we're already in town. That level of accountability is something you can't get from a regional chain or a storm-chasing outfit that blows in after a hail event and moves on.
Mount Prospect is a village of about 54,000 people with a diverse and well-established housing stock. The Old Town neighborhood near the downtown Metra station has some of the older residential architecture in the village — craftsman bungalows, colonials, and early ranches built before World War II through the 1950s. The broader village filled in quickly through the 1960s, 1970s, and 1980s with ranches, split-levels, and modest two-stories that now make up the backbone of Mount Prospect's residential character.
That housing stock matters for roofing. The wave of homes built between 1975 and 1995 is now 30 to 50 years old. Original roofing systems from that era are well past their useful life in Illinois's climate — even systems rated for 30 years rarely perform that long when factoring in our freeze-thaw cycles, summer heat, wind exposure, and periodic hail. We've been doing replacement work on this vintage of home in Mount Prospect for decades. We know what to expect under the shingles, we know the permit process cold, and we can move quickly because we're already here.
We hold Illinois Roofing Unlimited License #104.010248 and carry full general liability and workers' compensation coverage. Both residential and commercial roofing — there's no size or type restriction on our license.
The bulk of Mount Prospect's residential replacement work comes from the large wave of homes built during the village's primary growth period — roughly 1960 through 1990. Neighborhoods like Boxwood, Forest Manor, Lions Park, and Sycamore Trails are full of ranches and split-levels that are now 35 to 60 years old. The original roofing systems on these homes are long gone in most cases, and second-generation replacements from the 1990s and early 2000s are now themselves reaching the end of their effective lives.
A standard 30-year architectural shingle installed in Illinois in 1995 has typically delivered its useful performance by now. Granule loss, shingle curling, flashing failures, and compromised ice-and-water protection at the eaves are all signs that a system is done. Add in the poor attic ventilation that was common in construction from this era, and roofs age even faster. When we inspect a Mount Prospect home built between 1970 and 1995, we expect to find a system that's ready — or overdue — for replacement.
For a typical Mount Prospect single-family home, full roof replacement runs $15,000 to $40,000 depending on size, pitch, and complexity. A 1,600-square-foot ranch with a simple gable and one layer to tear off sits toward the lower end. A larger two-story with steep pitch, multiple roof planes, a chimney, and deteriorated decking requiring partial replacement will push toward the higher end. We provide written estimates — you see the material costs, labor, tear-off and disposal, permit fees, and any additional scope before signing anything.
Our standard replacement process: full tear-off of existing shingles (we don't install over existing layers), deck inspection with replacement of any soft or deteriorated sheathing, ice-and-water barrier at eaves and valleys, synthetic underlayment on the field, and new shingles with matching ridge cap. We use GAF, Owens Corning, and CertainTeed systems and back our work with a workmanship warranty in addition to the manufacturer's coverage.
Cook County takes regular hail hits — the northwest suburbs are in a corridor that sees significant storm activity most years. When a hail event moves through Mount Prospect, we typically see a surge of calls within days as homeowners notice visible damage to siding, gutters, or skylights and start wondering about the roof. The roof damage itself is often less obvious from the ground than the damage to softer surfaces nearby.
Here's the process we recommend for Mount Prospect homeowners who think they may have storm damage:
As a Mount Prospect-based contractor, we handle storm damage work here quickly. We're not driving in from another market — we can inspect, document, and get your claim process moving faster than an out-of-area crew.
Not every call requires a full replacement. Many Mount Prospect homeowners need targeted repairs — and for a roof that's not yet at the end of its life, a good repair is the right answer. The common repair categories we handle in Mount Prospect:
Chimney flashing and pipe boot failures are among the most common sources of interior water damage in Mount Prospect homes. On older homes — particularly those built in the 1960s and 1970s — original flashing was often installed with roofing cement rather than proper step and counter-flashing. That cement fails. We remove failed flashing entirely and reinstall with code-compliant metal step flashing and properly lapped counter-flashing. Caulking over a failed flashing is not a repair — it's a delay.
Ice dams form when heat escapes through the roof deck and melts snow at the ridge, which then refreezes at the cold eaves. Water backs up under the shingles and into the interior. Mount Prospect's older ranches and split-levels are particularly prone to this because of inadequate insulation and limited soffit ventilation. We repair the damage — replacing affected decking and membrane — and address the underlying ventilation and insulation deficiencies that caused the ice dam in the first place.
A water stain on the ceiling may not indicate a leak directly above it — water travels before it drops. We trace leaks systematically, checking valleys, penetrations, ridge, and all flashings before attributing the source to shingle failure. Getting the diagnosis right means the repair actually solves the problem rather than displacing it.
Tree strikes, sudden storm damage, or active leaks mid-season — we respond to emergency situations in Mount Prospect faster than any contractor coming from outside the village. Temporary protective measures to stop water intrusion, followed by a permanent repair assessment once conditions allow. Being based here is the difference.
Mount Prospect has a significant commercial base — the Rand Road and Central Road corridors are active commercial districts with strip centers, office buildings, restaurants, and service businesses. The Randhurst area and surrounding commercial zones represent a substantial inventory of flat and low-slope commercial roofing that needs ongoing maintenance and periodic replacement.
We have specific experience with institutional buildings in Mount Prospect as well. Our completed re-roof at St. Mark's Lutheran Church involved a steep-slope system on a large building with complex roofline geometry — the kind of commercial/institutional project that requires both technical competence and job-site coordination to execute without disrupting building operations.
Our Illinois Roofing Unlimited License covers commercial work of any type or size. Systems we install and maintain in Mount Prospect commercial properties:
We also provide commercial maintenance programs — annual inspections, seam and flashing re-sealing, drain clearing, and written condition reports for property managers who need documentation for capital planning purposes.
Roofing and gutters work as a system. A new roof that drains into failing gutters will see water infiltrating the fascia and soffit — the damage it was designed to prevent. We install seamless aluminum gutters fabricated on-site to the exact dimensions of each home, eliminating the seam-leak points that factory-cut sections create. For Mount Prospect's mature neighborhoods with heavy tree canopy, gutter guard systems substantially reduce the maintenance burden and keep channels clear through the season.
For siding, we work with James Hardie fiber cement, vinyl, and engineered wood products. When we're doing a full exterior project — roof, gutters, and siding together — we sequence the work so there are no gaps at transitions, no exposed edges between trades, and a clean, finished result. Many Mount Prospect homeowners combine all three services when their home reaches the age where everything needs attention at once, and bundling makes logistical and financial sense.
Most Mount Prospect homeowners pay between $15,000 and $40,000 for a full roof replacement. The range depends on roof size and pitch, number of shingle layers being torn off, deck condition, material choice, and complexity — chimneys, skylights, and multiple roof planes all add cost. The 1980s-era ranches and split-levels that make up a large portion of Mount Prospect's housing stock typically fall in the $15,000–$25,000 range for a standard architectural shingle replacement. Larger two-stories with more complicated rooflines run higher. We provide free estimates with full scope breakdowns before any work begins.
Yes — and this is an area where our local roots matter. We've worked with the Village of Mount Prospect Building Division for nearly 30 years. We know the permit requirements, the inspection process, and the inspectors. Full tear-off replacements require permits in Mount Prospect, and we handle that process as part of every job. We build permit timing into our project schedules so there are no delays. Working without a permit creates problems at resale and with insurance — it's a corner we don't cut.
Same-day response is the norm for emergencies in Mount Prospect — we're based here. If a tree limb comes through your roof overnight or a storm creates an active leak, we can typically be on site within hours to assess the situation and install temporary protective measures. Our office, our crew, and our material suppliers are all within a short drive. That proximity is a real advantage in urgent situations.
The most common issue we encounter in Mount Prospect is aging asphalt shingles on 1980s-era ranches and split-levels, often paired with inadequate attic ventilation. These homes were built with construction standards that didn't prioritize ridge and soffit ventilation the way modern codes require. Poor ventilation accelerates shingle degradation from the underside — you get premature granule loss, curling, and shortened roof life. We frequently diagnose roofs that look acceptable from the street but are failing from the inside out. Addressing ventilation at the time of replacement is essential to getting full life from the new system.
Yes. We handle commercial roofing throughout Mount Prospect — including the commercial corridor along Central Road and Rand Road, strip centers, office buildings, and institutional buildings. We completed a re-roof at St. Mark's Lutheran Church in Mount Prospect, which involved a steep-slope system on a large institutional structure. Our Illinois Roofing Unlimited License (#104.010248) covers commercial work without restriction on project size or complexity. We install and maintain TPO, EPDM, modified bitumen, and built-up systems for commercial property owners.
We serve all of Mount Prospect. Don't see your neighborhood? Call us at (847) 312-2727 — we're already here.
We're based here. Free estimates, fast response, no pressure. Call (847) 312-2727 or fill out the form.