Now booking commercial assessments across Waukesha County
Commercial Roofing · Waukesha, WI

Waukesha commercial roofing that protects your building.

TPO, EPDM, modified bitumen, metal, and fluid-applied coating restoration for flat and low-slope roofs, with a core-sample assessment before we ever quote. Phased to keep you open, dried-in every night. Free assessment, maintenance programs, and storm-claim support. Serving Waukesha County since 2020.

$1.5/sf
Restoration vs full replacement cost
5000 sf/day
Typical single-ply install pace
5
Google rating across 48 reviews
WI LicensedTPO & EPDM systems$2M insuredBBB A+
10-15 yrCoating restorationFor sound roofs, no tear-off
Flat commercial roof installation in Waukesha, Wisconsin by Generations Roofing
Booking assessmentsCore sample before we quoteWe diagnose the assembly, not just the surface.
Free roof assessment/Core sample diagnosis/Phased to keep you open/Maintenance programs
02Commercial roof systems we installAssessment & bid first

The right commercial roof system for your Waukesha building.

A commercial roof is a capital asset, and the wrong system or an unnecessary tear-off wastes budget. Generations Roofing & Remodeling core-samples the existing assembly, scans for trapped moisture, and recommends repair, restoration, or replacement based on what is actually up there, then bids it line by line. Here are the systems we install.

01

TPO single-ply membrane

A white, heat-reflective membrane hot-air welded at the seams for a monolithic, watertight surface. Lowers summer cooling load on Waukesha retail, office, and warehouse roofs. A leading choice for new and recover work.

Heat-reflectiveWelded seams
Learn more
02

EPDM rubber membrane

A proven black rubber single-ply that flexes through Wisconsin temperature swings and is fast and economical to repair. Often the best value for large, low-traffic roofs.

Proven durabilityEasy repair
Learn more
03

Modified bitumen

A multi-ply, torch or self-adhered asphalt system with excellent puncture resistance, well suited to roofs with heavy foot traffic and rooftop service equipment.

Puncture-resistantMulti-ply
Learn more
04

Standing-seam and metal

For sloped commercial and architectural roofs, a concealed-fastener metal system with a 40-plus year life and minimal maintenance.

40+ yr lifeLow maintenance
Learn more
05

Fluid-applied coating restoration

A silicone or acrylic membrane sprayed over a cleaned, sound roof to seal seams and add a reflective waterproof layer, extending life 10 to 15 years at a fraction of replacement cost, with no tear-off.

No tear-off10-15 yr life
Learn more
06

Tapered insulation and drainage

We correct ponding with tapered insulation and rework drains, scuppers, and crickets so water actually leaves the roof, the root cause behind most premature membrane failure.

Fixes pondingTapered system
Learn more
Need a straight answer on repair, restore, or replace?Free core-sample assessment and a line-item bid. We recommend the lowest-cost option that actually solves the problem.
Call (262) 202-2481
WI
LicensedWisconsin DSPS
TPO
Single-plyTPO & EPDM systems
$2M
InsuredGL + workers comp
A+
BBB AccreditedWisconsin
★★★★★
5.0 · 48 reviewsGoogle verified
04Repair, restore, or replace?We core-sample first

Does your Waukesha commercial roof need repair, restoration, or replacement?

Replacing a sound roof wastes capital; patching a saturated one wastes time. The honest answer comes from a core sample and a moisture scan, not a walkover. Use the checklist to gauge where your roof stands, then let us confirm it with a free assessment.

Commercial roof repair in Wisconsin

Likely a repair

Isolated and sound
  • Leaks at one or two penetrations
  • A few open or lifted seams
  • Membrane still flexible overall
  • Drains or scuppers clogged
Commercial roof coating restoration in Wisconsin

A candidate for restoration

Sound but aging
  • Widespread seam wear but dry insulation
  • Surface chalking or minor brittleness
  • You want 10 to 15 more years, not a tear-off
  • Budget favors capital preservation
Commercial roof inspection before TPO replacement in Wisconsin

Time to replace

The assembly is failing
  • Saturated insulation on a moisture scan
  • Brittle, cracking membrane across the field
  • Chronic ponding and recurring leaks
  • Past two roof systems already
Quick self-check: tap what your roof is doingThis points toward repair, restoration, or replacement. A free assessment with a core sample confirms it.
Leaks at one or two spots
Open or lifted seams
Surface chalking or brittleness
Ponding water after rain
Clogged drains or scuppers
Recurring leaks in the same area
Interior ceiling or deck staining
Membrane cracking across the field
Roof is 15 to 20+ years old
Tap what applies. A few top items suggest repair; widespread wear leans restoration or replacement.
0 / 9
Request assessment
05How a project worksAssessment to maintenance

Your Waukesha commercial roof, from core sample to coverage.

Commercial roofing is a budget decision, so we lead with diagnosis and a transparent bid, not a sales pitch. Generations Roofing & Remodeling phases the work to keep you operating and backs it with a maintenance program.

1

Assessment and core sample

Week 1

We inspect the roof, take a core sample, and run a moisture survey to see the real condition of membrane, insulation, and deck, then photograph and document it.

2

System recommendation and line-item bid

Same week

You get a written recommendation, repair, restoration, or replacement, with a line-item bid and an honest case for the lowest-cost option that solves the problem.

3

Scheduling around your operations

Planned

We stage materials to keep docks and entrances clear and phase the work so your business stays open, including after-hours where needed.

4

Install, dried-in daily

1 to 2+ weeks

We install the system to manufacturer and Wisconsin commercial code, and dry-in each section every day so the building is never exposed overnight.

5

Warranty and maintenance program

Ongoing

Manufacturer system warranty registered, plus an optional maintenance program with biannual inspections to protect the asset and the warranty.

Have a leaking flat roof or a capital budget to plan?Free assessment with a core sample and a line-item bid for your Waukesha building.
Call (262) 202-2481
06Hyperlocal coverageWaukesha County + metro

A commercial roofing contractor for Waukesha County.

Generations Roofing & Remodeling services commercial and flat roofs across Waukesha County and the greater Milwaukee metro from our Wauwatosa base, retail, office, industrial, warehouse, and multi-tenant properties.

Wauwatosa HQ2222 N Mayfair Rd

We serve commercial properties across Waukesha County and the metro. Cities below link to local service.

Waukesha County and the greater Milwaukee metro. 53186, 53188, 53189 in Waukesha, plus 53005, 53045, 53151, 53072, and 53051 across the county.
07Commercial roof cost2026 Wisconsin pricing

What commercial roofing costs in Waukesha.

Waukesha commercial roofing runs roughly $4 to $14 per square foot installed by system, and a coating restoration runs $1.50 to $4 per square foot on a sound roof. The cheapest watertight option is rarely a tear-off, which is why we core-sample first and bid every line. Pricing scales with roof size, deck, insulation, and rooftop equipment.

Waukesha commercial roofing cost by system (2026)
SystemInstalled / sq ftService lifeBest for
Coating restorationSilicone or acrylic over a clean, dry membrane$1.50 – $410 to 15 yrSound roofs, no tear-off
EPDM / modified bitumenProven rubber or multi-ply asphalt systems$4 – $1120 to 30 yrLarge, low-traffic roofs
TPO / standing-seam metalReflective welded membrane or metal$5.50 – $1420 to 40+ yrEnergy goals, long life
Restoration vs replacement. On a structurally sound, dry roof, a silicone restoration often costs a quarter to a third of a full tear-off, extends service life 10 to 15 years, and avoids disposal fees and downtime. We will tell you honestly when a roof is past that point.
Worth knowing. Beware a contractor who quotes a full tear-off without a core sample or moisture scan. Replacing dry, sound insulation is wasted capital, and recovering over wet insulation traps the failure. Diagnosis first, always.

Estimate your commercial roof

Slide your roof size and pick a system.

20,000 sq ft
Estimated installed cost
$30,000 – $80,000

Coating restoration · 20,000 sq ft

Budget range only. Deck, insulation, drainage, and rooftop equipment set the final bid. A free assessment is exact.

08What Waukesha property managers say5.0 · 48 Google reviews

Real buildings, real budgets protected.

5.0
★★★★★
48 verified Google reviews
5 star48
4 star0
3 star0
2 star0
1 star0
★★★★★
They core-sampled before quoting and recommended a silicone restoration instead of a tear-off on two of our four buildings. Saved a substantial budget line and zero tenant disruption.
D
Dave M.Waukesha, property manager Verified Google
★★★★★
TPO replacement on our warehouse was phased around shipping schedules, dried in every night, never lost a day of operations, and the white membrane dropped our summer cooling load.
K
Karen S.Pewaukee, facilities director Verified Google
★★★★★
Honest assessment, clear line-item bid, and a maintenance program that has caught two small seam issues before they became interior damage. Exactly what I want from a roofer.
M
Mike T.New Berlin, building owner Verified Google
Read all 48 reviews on Google
09Recent workTap any photo to enlarge

Recent Waukesha-area commercial roofs.

Real Wisconsin commercial and flat roofs, from TPO and EPDM replacement to coating restoration that preserved capital and avoided tear-off.

TPO · FlatFlat TPO roof installation in Waukesha
Waukesha warehouseTPO, phased installZero downtime
RestorationCommercial roof coating restoration in Wisconsin
Office park restorationSilicone, capital saved~1/3 of replacement cost
EPDM · RepairCommercial TPO roofing material in Wisconsin
New Berlin seam repairRepair + maintenanceLeaks stopped
10Why Waukesha trusts usFamily-owned since 2020
Zachary, founder of Generations Roofing, a Wauwatosa-based Waukesha contractor

A commercial roof is a capital decision, not a sales pitch.

Zachary founded Generations Roofing & Remodeling in 2020 and built its commercial division around one discipline: diagnose before you bid. He has seen Waukesha property owners sold full tear-offs on roofs that needed a coating, and recovers sold over wet insulation that failed in two winters. A core sample and a moisture scan come first.

We carry $2 million in general liability plus workers' compensation, install TPO, EPDM, modified bitumen, metal, and coating systems, and back the work with a maintenance program so your roof reaches its service life.

ZacharyFounder and Owner, Generations Roofing & Remodeling
$2M
General liability insured
5,000 sf
Typical install pace per day
10-15 yr
Coating restoration extension
5.0 ★
Across 48 verified Google reviews
11Built to commercial codeDSPS licensed & insured

Installed to Wisconsin commercial standards and warranty spec.

A commercial roof has to satisfy code, the manufacturer's warranty terms, and your insurer. We are DSPS-licensed, fully insured, and install to system specification on every project.

Wisconsin SPS commercial building code

Installed to the applicable Wisconsin commercial building and energy code for assembly, insulation R-value, and attachment.

Manufacturer-certified attachment

Mechanically-attached or fully-adhered to the membrane manufacturer's wind-uplift and seam-weld specifications so the system warranty holds.

Moisture survey before recover

We confirm the insulation is dry before any recover or coating, never trapping a saturated assembly under a new membrane.

Tapered drainage design

Ponding is corrected with tapered insulation and reworked drains and crickets so water leaves the roof within code limits.

$2M liability and workers comp

Full general liability and workers' compensation coverage protects your property and your business during the work.

Documented maintenance program

Biannual inspections with photo documentation keep the manufacturer warranty valid and catch small issues early.

12Commercial roofing questions, answered12 questions

Waukesha commercial roofing FAQ.

Most Waukesha commercial roofs run $4 to $14 per square foot installed depending on the system: modified bitumen $4 to $8, EPDM rubber $5 to $11, TPO $5.50 to $12, and standing-seam metal $8 to $14. A roof coating or restoration runs $1.50 to $4 per square foot and can extend a sound roof 10 to 15 years for a fraction of replacement cost. We provide a written, line-item bid after a core sample and assessment.

Both are excellent single-ply membranes. TPO is a white, heat-reflective membrane that lowers cooling load and is hot-air welded at the seams, popular for Wisconsin retail and warehouse roofs. EPDM is a proven black rubber membrane that handles temperature swings and is easy to repair, often the value choice. The right pick depends on your building's sun exposure, energy goals, and budget, which we assess on-site.

If the membrane is generally sound with isolated leaks, seam failures, or ponding spots, repair or a coating restoration is usually the smart spend. Replacement makes sense when the membrane is widely brittle, saturated insulation shows on a moisture scan, or you are past two roof systems. We core-sample to see what is really in the assembly before recommending.

A roof coating is a fluid-applied membrane (silicone or acrylic) sprayed or rolled over a cleaned, sound existing roof to seal seams and add a reflective, waterproof layer. It can extend a roof 10 to 15 years at roughly a quarter to a third of replacement cost, and it avoids tear-off disruption. It only works on a roof that is structurally sound and dry, which our assessment confirms.

A typical Waukesha single-ply commercial roof installs at roughly 2,000 to 5,000 square feet per day depending on the system, deck, and rooftop equipment. A 20,000 square foot building often takes one to two weeks. We phase the work and dry-in each day so your operations and inventory stay protected.

We schedule around your operations, stage materials to keep loading docks and entrances clear, and work section by section so you stay open. For sensitive interiors, we coordinate odor and noise-sensitive work outside business hours. The goal is a watertight building with minimal downtime.

Yes. A scheduled maintenance program with biannual inspections, seam and flashing checks, drain clearing, and minor repairs is the cheapest way to protect a commercial roof. It catches small problems before they become interior damage and often satisfies manufacturer warranty requirements. We document every visit.

The usual culprits are failed seams and flashing at penetrations, curbs, and parapet walls; ponding water that sits more than 48 hours; clogged drains and scuppers; and punctures from foot traffic and rooftop equipment service. Most are repairable if caught before the insulation saturates.

We install TPO and EPDM single-ply membranes, modified bitumen, standing-seam and through-fastened metal, and fluid-applied coating restorations. We also handle tapered insulation to correct ponding, and tear-off or recover depending on the existing assembly and code.

For many Waukesha buildings, yes. A reflective white TPO membrane lowers summer cooling load and rooftop temperatures, which can reduce energy costs and extend membrane life. The benefit is largest on buildings with significant air conditioning and sun exposure; we model it against a darker membrane in our recommendation.

Yes. When hail or wind damages a commercial roof, we document the damage, provide a detailed scope, and work alongside your adjuster and property manager. Wisconsin gives you time to file, but prompt documentation protects the claim. We also handle emergency temporary repairs to stop active leaks.

Yes. We provide pre-purchase and pre-lease commercial roof condition assessments with core samples, moisture survey, remaining-life estimate, and a budget for repairs or replacement, the documentation buyers, sellers, and property managers need for due diligence.

14 · Request a free assessment

Get a core-sample assessment and a line-item bid, this week.

We assess the roof, take a core sample and moisture scan, and give you a written recommendation, repair, restore, or replace, with a transparent bid. Phased to keep you operating. Talk to Alexis Quesada, our project coordinator, who answers within two rings.

1We call you backWithin one hour during business hours, no phone tree.
2Free on-site visitA real assessment and honest options.
3No-pressure quoteWritten, line-item pricing. No obligation.
Office2222 N Mayfair Rd, Wauwatosa, WI 53226
HoursMon to Sat, 7am to 6pm
Founded2020, locally owned in Wauwatosa
Free, no-obligation visitCommercial Roofing specialists5.0 stars, 48 Google reviewsLicensed and insured in Wisconsin
Get driving directions ›

Request your free roof assessment

We call within one hour during business hours. No obligation, no pressure.
Same-week appointments across the metro

    [INSERT_ELEMENTOR id="2969"]

    This will close in 0 seconds

    Ready for Your Free Estimate?

    Roofing · Siding · Windows · Remodeling · Southeast Wisconsin