How to Vet a Contractor Before You Sign
Vet a contractor in four passes: verify credentials (in Connecticut, home improvement contractor registration and insurance certificates), scrutinize the bid for scope gaps and allowances, speak with recent references about communication and follow-through, and confirm how the project will actually be run week to week. Most failed projects trace back to a gap that was visible before anything was signed.
Verify credentials first
- —Connecticut home improvement contractor (HIC) registration — verify it yourself through the Department of Consumer Protection's public eLicense lookup rather than taking a number on a business card at face value
- —Certificates of insurance for general liability and workers' compensation, issued to you directly by the insurer or agent
- —Any trade licenses the scope requires (electrical, plumbing, HVAC work in Connecticut is performed by licensed tradespeople)
Read the bid like a skeptic
The most expensive number in a bid is often the one that isn't there. Compare bids for what they exclude, not just what they total.
- —Is the scope written specifically enough that a stranger could tell what's included?
- —What are the allowances — and are they realistic for the finishes you actually want?
- —What is explicitly excluded (permits, disposal, patching, site protection)?
- —How are changes priced after signing?
- —Is the low bid low because of efficiency, or because of missing scope?
What to ask references
- 01Did the project finish at the contracted scope and agreed price, and if not, why?
- 02How were problems communicated — before you noticed them, or after?
- 03How was the site left each day?
- 04Would you hire them again for a bigger project?
Process signals that predict the experience
How a contractor behaves before the contract is the best preview of how they'll behave after it. Punctuality, written follow-ups, specific answers to specific questions, and a visible system for scheduling and updates all predict the project experience better than the pitch does.
Red flags
- —Reluctance to put the agreement in writing — Connecticut's Home Improvement Act requires home improvement contracts to be in writing
- —Pressure to sign immediately or "lock in" a price that expires today
- —A demand for a large cash payment before any work or materials
- —No verifiable registration, or insurance "documentation" that isn't a certificate from the insurer
- —Vague answers about who will actually be on site
Or let the vetting be done for you
This diligence is a standing part of construction management. Maywood assembles and manages trade partners that are vetted, insured, and managed to its standards — so the homeowner gets the benefit of the process without running it.
Frequently Asked Questions
What insurance should a residential contractor carry?
At minimum, general liability insurance and workers' compensation for their crew. Ask for certificates of insurance sent to you directly from the insurer or agent, and check the coverage dates against your project schedule.
How many bids should I get?
Common practice is two to three comparable bids on identical written scope. More bids add little once you have comparability; fewer leaves you without a reference point. The key word is comparable — bids on different assumptions can't be meaningfully compared.
Is the lowest bid a mistake to take?
Not automatically. A low bid backed by specific scope, realistic allowances, and strong references can be a fair price. A low bid that's low because scope is missing usually becomes the most expensive option through change orders.
How do I verify a Connecticut contractor's registration?
Use the Connecticut Department of Consumer Protection's public eLicense lookup to confirm an active home improvement contractor registration. It takes a few minutes and removes any need to rely on what's printed on a card or truck.
This guide is general educational information, not legal advice. Requirements change and can vary by project — confirm what applies to your situation with the relevant municipality, the Connecticut Department of Consumer Protection, or qualified legal counsel before acting.
How We Help
Construction Management
For homeowners who want professional oversight without managing the project themselves. We serve as your single point of accountability — coordinating trades, managing budgets, and maintaining quality standards.
Related Guides
Questions to Ask Before Signing a Construction Contract
The scope, money, schedule, and accountability questions to settle before signing a construction contract — and what Connecticut's Home Improvement Act requires in writing.
Construction Manager vs. General Contractor: Which Do You Need?
What a construction manager does, what a general contractor does, how their economics differ, and how to decide which model fits your residential project.
How Residential Permitting Works in Fairfield County
Who issues building permits in Fairfield County, what work typically requires one, how zoning review fits in, and the permit-to-inspection process for Connecticut renovations.