
Empire Contractors has provided roofing services in Michigan for 28+ years and operates as a second-generation company. If you are comparing a commercial roofing contractor for a Cadillac, MI property, start by comparing what each contractor inspected and what each written scope actually includes. To discuss a commercial roof, call 231-861-7221.
Empire uses an inspection-first approach to commercial roofing decisions. That matters because two proposals for the same building may price different systems, repair different conditions, or include different assumptions. A lower number is not automatically a better value, and a higher number is not automatically a more complete project. Compare scope before price.
How to Compare Commercial Roofing Bids
A useful bid review puts competing proposals on the same footing. Before comparing totals, confirm that each contractor is pricing the same roof area, the same type of work, and the same assumptions about existing conditions. If one proposal leaves a point unclear, ask for the answer in writing before treating the bids as equivalent.
Commercial Roofing Bid-Review Checklist
Use the table below to identify where two proposals may describe different work even when the project titles sound similar.
| Review Item | What to Confirm in Writing | Why Bids May Not Compare |
|---|---|---|
| Confirmed service | Whether the proposal is for repair, restoration, replacement, installation, inspection-related work, or another defined scope | One contractor may be pricing a localized repair while another is pricing a broader roof project |
| Investigation scope | What was inspected before pricing, what remains unknown, and how concealed conditions will be handled | One bid may account for conditions that another has not investigated |
| Material and system specification | The proposed roof system, relevant material specification, insulation, and attachment or installation method | Different systems and specifications can carry different installation, maintenance, and cost implications |
| Exclusions | What is not included, such as deck repair, equipment work, permits, disposal, or other project-specific items | Items omitted from one proposal may become added work later |
| Scheduling | The expected start window, project duration, sequencing, and how weather or changing conditions affect the schedule | Similar timelines may rely on different access, crew, or weather assumptions |
| Occupied-property protection | How entrances, tenants, employees, customers, interiors, staging areas, and rooftop equipment will be coordinated when relevant | One proposal may include coordination and protection work that another leaves unstated |
| References or comparable work | What evidence the contractor can provide of experience with comparable commercial roof work, when requested | A general company history does not by itself show that two bidders are proposing comparable experience or scope |
| Warranty responsibility | Whether any workmanship or manufacturer warranty applies, who provides it, what it covers, and what conditions or exclusions apply | The word “warranty” can describe different providers, coverage, conditions, and responsibilities |
Follow-Up Questions That Reveal Incomparable Bids
When two proposals look similar, the follow-up questions often show whether they are actually pricing the same project:
- What exactly did you inspect before setting this price? Ask which roof areas, details, and known problems were included and what remains unverified.
- What roof system and specification are you pricing? If the material, assembly, insulation, or attachment method differs, the bids are not direct equivalents.
- What happens if damaged decking, wet insulation, or another concealed condition is found? The proposal should explain how added scope will be documented, approved, and priced before the work changes.
- What is excluded? Silence is not the same as inclusion. Ask the contractor to identify important exclusions in writing.
- How will the occupied property be coordinated? Where relevant, ask about access, staging, entrances, interior protection, equipment, and operating-hour constraints.
- What written warranty terms apply? Ask who provides each warranty and what coverage, conditions, and exclusions actually apply to this project.
Workmanship and Manufacturer Warranties Are Different
A workmanship warranty, when offered, is provided by the contractor and addresses the contractor’s installation work according to its written terms. A manufacturer warranty, when offered, comes from the manufacturer or system provider and may address materials, system performance, or other defined conditions. They are separate forms of coverage.
Do not assume that either warranty is included just because a proposal uses the word “warranty.” Ask each contractor to identify the provider, duration, coverage, exclusions, maintenance requirements, claim process, and any conditions that could affect eligibility. Empire-specific warranty terms should come from the actual written proposal for the project.
Inspection and Commercial Roofing Scope in Cadillac

Empire Contractors uses an inspection-first approach when evaluating commercial roofing needs. A roof inspection in Cadillac can help define visible conditions before a repair, restoration, replacement, or installation scope is written. If replacement is the confirmed need, Empire also provides flat roof replacement in Cadillac.
If storm damage is involved, Empire also offers insurance claims assistance to help organize project documentation. Coverage decisions, policy interpretation, and claim approval remain with the insurer.
Choose a Commercial Roofing Contractor by Scope, Not Price Alone
The strongest comparison is the one that makes the proposals comparable before cost is weighed. Confirm what was inspected, what system is being proposed, what is included and excluded, how the occupied property will be coordinated, and what warranty responsibilities actually apply.
For commercial roofing in Cadillac, see Empire Contractors’ commercial roofing services or call 231-861-7221 to discuss the building and the scope that needs to be evaluated.
Frequently Asked Questions
Why do two roofing bids for the same building differ so much?
Bids may differ in investigation, scope, roof system, specifications, exclusions, scheduling, or concealed-condition assumptions. Compare those items before comparing price.
What should a written commercial roofing bid include?
It should identify the work being priced, the proposed system and relevant specifications, important exclusions, schedule assumptions, concealed-condition process, occupied-property coordination when relevant, and any warranties actually offered.
What is the difference between a workmanship warranty and a manufacturer warranty?
A workmanship warranty, when offered, comes from the contractor and addresses its installation work. A manufacturer warranty, when offered, comes from the manufacturer or system provider and has its own coverage, conditions, and exclusions.
Should I choose the lowest commercial roofing bid?
Not automatically. First confirm that the bids cover the same work and assumptions. A lower price may reflect a narrower scope, different specification, more exclusions, or less investigation.
