Warranty-backed assemblies installed to the manufacturer spec that keeps the warranty intact — plus the drainage that protects it. Self-performed by our own roofing crews.

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Roofing

What is a commercial roof replacement program?

Warranty-backed assemblies installed to the manufacturer spec that keeps the warranty intact — plus the drainage that protects it. Self-performed by our own roofing crews.

A commercial roof replacement program removes a failing roof and installs a new, manufacturer-warranted assembly, usually building by building across a property. Apex self-performs roofing on multifamily, HOA and commercial buildings: tear-off, deck repair, insulation, membrane or shingle, flashings and the drainage corrections that keep the new warranty valid.

Guide: What drives commercial roof replacement cost

Roofing is the single largest line in most multifamily capital plans, and it is the one most often bought on price per square. The problem with that is the warranty: a manufacturer will only stand behind an assembly installed exactly to their spec, by a contractor they certify, with their inspector on site at the right moments. Miss any of those and you own a roof with a piece of paper that does not pay.

We self-perform roofing, which is why the crew on your roof is the crew we are accountable for. Drainage gets corrected as part of the job rather than deferred, because a new membrane over a low spot is a leak with a warranty on it.

Self-performed
By Apex roofing crews

15-30 yr
Manufacturer warranties, registered

No recover
Unless the assembly earns it

Scope

What a commercial roof replacement scope includes

The line items we carry on a roofing scope, and what each one actually covers.

TPO, PVC and modified bitumen
Single-ply and modified systems for low-slope assemblies, installed to the manufacturer’s certified detail.

Architectural shingle and standing seam
Steep-slope replacement with ice-and-water, underlayment and ventilation corrected at the same time.

Gutters, leaders and storm drainage
Because a roof that drains to the wrong place turns an envelope problem into a foundation problem.

Roof restoration and coating systems
Where the deck and insulation are sound, a coating buys ten years at a fraction of a tear-off.

Tear-off, decking and insulation
Deck repair, tapered insulation to correct ponding, and disposal handled as part of the contract.

Manufacturer warranty registration
NDL and system warranties registered and delivered, with the inspection record attached.

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The Sequence

How commercial roof replacement runs on an occupied property

Four stages, one contract. Nothing here is a handoff to somebody else.

Core and measure
Cores pulled to confirm the existing assembly, and the roof measured rather than taken off a drawing.

Specify the assembly
Assembly chosen for the exposure and the warranty term you want, with the submittal package issued before order.

Dry in, then finish
Every building dried in before finishes start, so a weather day is never a water loss.

Inspect and register
Manufacturer field inspection during install, warranty registered and delivered at closeout.

On the ground

Where commercial roof replacement goes wrong, and how we prevent it

Ponding water
Standing water on a low-slope roof is not cosmetic. Tapered insulation and drain corrections go in the base scope, not a change order.

Rooftop equipment
Curbs, penetrations and mechanical supports are the leak points. They get new flashing, not a reuse of the old boot.

The people underneath
Occupied-building roofing means staged tear-off, daily dry-in, and never leaving an area open into weather.

Get this scoped on your property

Pricing

What drives commercial roof replacement cost

Two contractors can price the same building a long way apart and both be honest about it. These are the variables that explain the gap — worth asking every bidder, not just us.

Tear-off versus recover
A recover is cheaper until the deck is wet. We core it before we price it, and the bid says which we carried.

Deck condition
Rotted or rusted deck is the single biggest variable on a re-roof. Carried as a measured allowance with a unit rate agreed up front.

Slope and drainage
Correcting ponding with tapered insulation costs money now and saves a claim later. Priced on its own line so you can decide.

Penetrations and curbs
Count and condition of units, vents and curbs drives the flashing scope more than the square footage does.

Roofing replacement programs work by Apex Contracting Group

Self-performed where it matters, subcontracted where it does not

The trades that decide whether this scope holds up are ours. Everything else runs through trade partners we have used in that market before, on our contract and our warranty.

One project manager and one superintendent, named before award
Weekly reporting against a schedule with real float in it
One warranty at closeout, whoever swung the hammer

Projects

Recent commercial roof replacement projects

Three projects from the portfolio where this scope was the job, or a large part of it.

Browse the full portfolio

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FAQ

Commercial roof replacement: common questions

How much does a commercial roof replacement cost?
Commercial roof replacement cost depends on roof size, the system specified and what is found under the existing roof. The main drivers are membrane or assembly type, tear-off layers, wet insulation or deck replacement, drainage and flashing details, access and staging on an occupied site, and the manufacturer warranty required. Apex core-samples the roof before pricing so the number reflects actual conditions.

Should I replace my commercial roof or restore it with a coating?
Restore with a coating only if the deck and insulation are dry and sound; otherwise, replace. A coating can extend a structurally healthy roof, but coating over saturated insulation traps moisture and wastes the budget. Apex takes core samples and moisture readings before recommending either option, and prices both when the roof is a genuine restoration candidate.

How long does a multifamily roof replacement take?
A typical garden-style apartment building is re-roofed in a few days, and a full community is scheduled building by building over several weeks. Duration depends on roof area, tear-off depth, weather and material lead times. Apex sequences the work so no resident is left under an open roof overnight and parking is never fully closed.

Can residents stay home during a roof replacement?
Yes. Apex replaces roofs on occupied multifamily, HOA and commercial buildings as standard practice. Residents get advance notice, each section is dried in before crews leave for the day, staging areas are fenced, and parking is closed in phases rather than all at once. The schedule is coordinated with the site team so daily operations continue.

Who actually installs the roof?
Apex’s own roofing crews install it. Apex self-performs roofing, so the company that holds your contract is also the one on the roof, supervising the installation and scheduling the manufacturer’s inspections. After a regional storm that also means Apex is scheduling its own crews instead of competing with other contractors for the same subcontractors.

What warranty comes with a new commercial roof?
A qualifying roof typically carries the manufacturer’s system warranty plus the contractor’s workmanship warranty; terms vary by system and manufacturer. Keeping a manufacturer warranty valid requires installing to the manufacturer’s published details and passing its field inspections. Apex schedules those inspections during the job and hands over the complete warranty package at closeout.

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