Choosing a commercial general contractor is one of the most consequential decisions you’ll make on a construction project. Get it right and you have a partner who keeps the schedule, manages costs transparently, and anticipates problems before they show up on site. Get it wrong and you’re dealing with cost overruns, delays, and a contractor who’s harder to reach once the contract is signed.
On Long Island, the decision carries an extra layer. The region’s fragmented permitting landscape, dozens of separate building departments across Nassau and Suffolk County, means local experience isn’t just a selling point. It’s a practical requirement. A contractor who knows how your town’s building department works, who has pulled permits there recently, and who has relationships with the local trades can move through the process meaningfully faster than one learning the jurisdiction for the first time.
Here’s how to evaluate and choose a commercial general contractor before you sign anything.
Start With Local Commercial Experience
Not all construction experience is equal. A contractor who has built commercial projects across Long Island for decades has a fundamentally different foundation than one who is primarily residential or works mostly outside the region.
Local commercial experience matters for two specific reasons. First, every town and incorporated village in Nassau and Suffolk County has its own building department, its own permit submission process, and sometimes its own interpretation of the New York State Building Code. A contractor who has worked repeatedly through a given town’s building department knows the review timeline, what reviewers commonly ask for, and where the typical holdups are. That institutional knowledge can shave weeks off an approval process.
Second, the commercial subcontractor market on Long Island is regional. Mechanical, electrical, and plumbing contractors who work regularly on Long Island know local code requirements, have existing relationships with inspectors, and are available in your area. A GC with an established local subcontractor network can staff your trades faster and more reliably than one sourcing unfamiliar subs.
When evaluating a contractor’s experience, ask for specific commercial projects they’ve completed in Nassau or Suffolk County, ideally in project types similar to yours. Healthcare, institutional, and religious work each come with different occupancy requirements and approval processes. Experience in your category matters more than experience in general.
Verify Licensing, Insurance, and Safety Records
In New York, contractors working on commercial projects are required to carry general liability insurance and workers’ compensation coverage. Before hiring anyone, ask for certificates of insurance directly, not just confirmation that they carry coverage. Your attorney or project manager can review the coverage levels to make sure they meet the requirements for your project type and match what your lender or building department will ask for.
New York State does not issue a single statewide general contractor’s license. Licensing is handled at the local level and requirements vary by county and municipality. Nassau County requires general contractors to be licensed through the county. Suffolk County’s requirements vary by town. Confirm that the contractor is properly licensed in the specific jurisdiction where your project is located.
The EMR rating, or Experience Modification Rate, is a number calculated by workers’ compensation insurers that reflects a contractor’s safety record relative to the industry average. A rating at or below 1.0 is average or better. Ratings above 1.0 indicate a higher-than-average rate of workplace incidents. Ask any contractor you’re seriously considering to provide their current EMR rating. A well-run firm will have it readily available. One that struggles to answer the question is telling you something.
Bonding is worth confirming for larger commercial projects. A performance bond and payment bond protect the owner if the contractor fails to complete the work or fails to pay subcontractors and suppliers, which can create significant complications for the owner on an active project.
Evaluate Their Pre-Construction Process
The difference between a contractor who shows up to build and a contractor who adds value before construction starts is often the single biggest factor in how smoothly a commercial project runs.
Pre-construction is the phase before work begins on site, where the contractor reviews drawings, develops cost estimates, identifies potential issues, and coordinates with the design team. A GC who gets involved early can flag conflicts between structural and mechanical drawings before a subcontractor shows up to install something that won’t fit, and can identify materials with long lead times so the schedule doesn’t stall waiting for delivery.
Progressive estimating lets you see how design decisions affect cost in real time. Rather than waiting for a single fixed-price bid once design is complete, a contractor who provides estimates at different design stages lets you course-correct before drawings are finished and bids are in.
Ask any contractor you’re considering to walk you through their typical pre-construction process. A vague answer that amounts to ‘we review the plans’ is worth noting. A specific explanation of how they coordinate with architects, handle early cost modeling, and manage long-lead procurement is a strong signal of an organized operation.
Ask the Right Questions Before You Decide
The interview stage is where you move from credentials to fit. Every contractor on your shortlist should be able to answer these questions specifically and without hesitation. The table below outlines what to ask and what a strong answer actually looks like.
| Question to Ask | What a Strong Answer Looks Like |
| How many commercial projects have you completed in Nassau or Suffolk County? | Specific project types and towns mentioned, not a vague number. Ideally includes project types similar to yours. |
| Which building departments have you pulled permits through recently? | Familiarity with the specific town or village where your property sits, or adjacent municipalities. |
| Who are your core subcontractors for mechanical, electrical, and plumbing? | Named trade partners they have worked with consistently, not a generic claim of a strong network. |
| How do you handle changes to scope or unexpected conditions during construction? | A clear change order process described in writing, not just a verbal reassurance that things will be handled. |
| Can you provide references from owners on similar project types? | Willingness to provide references and names you can actually call, not just testimonials on their website. |
| What does your pre-construction process look like before work starts on site? | Description of progressive estimating, constructability review, and early coordination with the design team, not just ‘we review the plans.’ |
| What is your current EMR rating? | A number at or below 1.0. Anything above should come with an explanation. Inability to answer is a red flag. |
Pay attention to how a contractor responds to difficult questions as much as to the answers themselves. A contractor who becomes defensive when asked about change orders or past project challenges is showing you something about how they’ll behave when problems arise on your project.
Understand the Contract Before You Sign
The contract structure you choose shapes cost certainty, risk allocation, and how much visibility you have into what you’re actually paying for. Three contract types are common for commercial work on Long Island.
A fixed-price or lump-sum contract gives you a single number that covers all construction costs. The contractor assumes the risk that their costs come in at or below that number. This offers the most cost certainty upfront, but it works best when the design is complete and the scope is clearly defined. Scope gaps or design changes after the contract is signed will generate change orders, which can add up quickly.
A cost-plus contract passes the actual costs of labor and materials through to the owner, with the contractor charging a fixed or percentage fee on top. The owner has full visibility into what subcontractors and materials actually cost, but the final number isn’t fixed until the work is done. This structure works well when scope is still evolving or when the owner wants transparency into how money is being spent.
A guaranteed maximum price contract, often called a GMP, provides a cost ceiling with actual costs tracked on an open-book basis below it. Savings below the GMP can be shared between owner and contractor depending on how the contract is written. This structure is common in construction management arrangements.
Whatever contract type you use, make sure the change order process is defined in writing before you sign. Verbal agreements about how changes will be handled almost always create disputes. A well-drafted contract specifies how changes are documented, priced, and approved, and how they affect the schedule.
How Many Bids Should You Get?
Three bids is the standard benchmark for most commercial projects and a reasonable minimum. It gives you enough comparison to understand whether pricing is in range without turning the bidding process into an exercise that discourages serious contractors from participating.
The lowest bid is rarely the safest choice. A number significantly lower than the others usually means something is missing from the scope, the contractor made an estimating error, or they’re planning to recover margin through change orders later. When comparing bids, look at what each one explicitly includes and excludes, not just the bottom-line figure.
Not every project benefits from open bidding. If a contractor has invested time in pre-construction, developed progressive estimates, and has a strong track record on similar projects, negotiating a contract directly can produce better results than restarting the process with a competitive bid after that work is done.
Frequently Asked Questions
What questions should I ask a commercial general contractor before hiring?
Ask about their specific commercial project experience in your area, which local building departments they’ve worked through, who their core subcontractors are, and how they handle change orders. Also ask for their current EMR rating and references from owners on project types similar to yours. Strong contractors will answer these questions specifically and without hesitation.
How do I verify a general contractor’s license in New York?
New York State does not issue a single statewide general contractor’s license. Licensing is handled at the local level and varies by county and municipality. In Nassau County, general contractors are licensed through the county. Suffolk County licensing varies by town. Confirm that the contractor holds the appropriate license for the specific municipality where your project is located, and ask to see the license documentation directly.
What is an EMR rating and why does it matter?
EMR stands for Experience Modification Rate, a number calculated by workers’ compensation insurers based on a contractor’s workplace safety history. A rating at or below 1.0 indicates average or better safety performance. A rating above 1.0 means the contractor has had more workplace incidents than average for their industry. A low EMR indicates better safety practices, which reduces the risk of project delays due to incidents and reflects on the overall quality of a contractor’s operations.
What type of contract is best for a commercial construction project?
The right contract depends on how well-defined your scope is. A fixed-price contract works well when design is complete and scope is clearly defined. A cost-plus contract gives the owner more visibility into actual costs and is better suited when scope is still evolving. A guaranteed maximum price contract provides a cost ceiling with open-book accounting and is common in construction management arrangements. Regardless of contract type, make sure the change order process is clearly defined in writing before you sign.
How many bids should I get for a commercial construction project?
Three bids is a practical standard for most commercial projects. It gives you enough information to assess whether pricing is reasonable without creating a competitive process that discourages participation from established contractors. When comparing bids, look beyond the bottom-line number and compare what each bid explicitly includes and excludes. The lowest bid is often not the most accurate or the most complete.
Finding the Right Commercial GC for Your Long Island Project
The right commercial general contractor for your project brings more than a competitive price. They bring local knowledge, an organized pre-construction process, a reliable subcontractor network, and the communication discipline to keep you informed from start to finish.
Lipsky Construction has been building commercial projects across Long Island since 1980, working through building departments in towns and villages across Nassau and Suffolk County on projects ranging from institutional and healthcare buildings to commercial renovations and historic restorations. If you’re in the early stages of planning a commercial project and want to talk through what a pre-construction process looks like before you commit to a contract, that’s a conversation worth having early.
