Guardian’s building envelope specialists diagnose commercial roofing problems at the source — not the symptom — and deliver permanent, documented solutions for flat roofs, low-slope systems, metal, and traditional roofing across Southeast Wisconsin.
We’ll inspect the issue and give you honest options.
You have a leak in Building C. Water is staining the ceiling tiles above a tenant’s office. You call three roofing contractors. Here’s what happens:
They patch where the stain is. The leak comes back in four months because the actual failure point is eight feet away at a flashing transition. You've paid for the same non-fix twice. Your tenant is documenting everything for their lease renegotiation.
Quote: $180,000. They measured the square footage, spec'd their preferred system, and sent you a proposal. They never opened a core sample. They didn't inspect the insulation. They didn't check the deck condition. You have no idea if you actually need a full re-roof.
They're available next week. They're also a residential crew that "does some commercial." Their insurance doesn't cover your building's value. Their warranty is a one-page handshake. You won't find them when you need them in three years.
Commercial roofing failures are building envelope failures. The leak you see on the ceiling started at a flashing detail, traveled through compromised insulation, and showed up thirty feet from the actual breach. You need a team that traces the path — not one that patches the stain.
Guardian was built on investigating construction defects. Our consulting division has spent 27+ years conducting forensic building envelope assessments for property owners, attorneys, insurance companies, and real estate professionals across Wisconsin. Infrared thermography, core sampling, moisture meters — the same techniques litigation experts rely on.
B.U.R. (built-up roofing), single-ply membrane (TPO, PVC, EPDM), modified bitumen, metal roofing, and specialty systems. We work with all major commercial manufacturers. No exclusivity agreements. No preferred-vendor kickbacks. We specify what your building actually needs.
Every roof component — membrane, insulation, fasteners, flashing, penetrations, drains, deck — gets condition-rated and photographed. You receive a written report you can use for capital planning, lease negotiations, or insurance claims. No more decisions based on a salesman’s verbal estimate.
Once we install or service your roof, we don’t disappear. Annual inspections, preventive maintenance, leak response, and condition tracking — handled by a contractor who’s still in business and still standing behind the work.
We examine your roof, attic, ventilation, and entire building envelope — not just the shingles.
Comprehensive building envelope assessment. Core samples to verify insulation condition, moisture content, and substrate health. Infrared scan to map hidden moisture migration. Photo-documented condition rating of every roof component.
We match the right system to your building, climate, traffic, budget, and capital plan. Single-ply membrane, modified bitumen, B.U.R., metal — every option priced transparently. You see the trade-offs and make an informed decision, not a pressured one.
Certified commercial crews. Manufacturer-approved installation details so warranties are protected. Documented installation photos. Ongoing maintenance and emergency response contracts available so the roof you invest in stays performing for its full service life.
Every aging commercial roof is a liability of unknown size. Without a documented condition assessment, you can’t budget capital, negotiate leases, or accurately reserve for replacement. We help you turn the unknown into a documented plan.
Every component, every detail, photographed and rated. You know exactly what you have, what’s failing, and what’s coming. Use the report for capital planning or lease negotiation.
Most commercial roof problems can be addressed in phases. Address the urgent failures now, plan the major work for next year’s budget. We help you map the sequence.
A maintained commercial roof can last 25–30+ years. A neglected one fails at 12–15. Annual maintenance contracts cost a fraction of premature replacement and dramatically extend service life.
LOCAL EXPERTS
Guardian Home Improvements serves commercial property owners, facility managers, attorneys, and insurance professionals across Southeast Wisconsin — Milwaukee, Waukesha, New Berlin, Brookfield, Wauwatosa, and surrounding counties — with forensic-level building envelope assessments and permanent commercial roofing solutions.
Our consulting division has spent 27+ years investigating commercial roofing failures and construction defects for litigation, insurance, and real-estate transactions. That experience is what your building gets every time we step on the roof.
4.8 - star rated by 530+ happy customers
Stop guessing about the roof on your balance sheet. We’ll deliver a written, photographed, condition-rated report you can use for capital planning, lease negotiation, or insurance claims.
