Last updated October 2026
The right contractor is the one that clearly explains what it will do, who will do it, what it will cost and who will help if something goes wrong later. Before you sign, verify the company’s license or registration and insurance, get detailed written estimates from more than one company, ask who will actually do the installation, and read the warranty and contract in full. The lowest price isn’t automatically the best value, and a company that pressures you to sign today is a red flag.
This guide walks through each step, including what licensing looks like in Ohio, Pennsylvania, North Carolina and South Carolina.
Step 1: Define the Project First
You don’t need to know every product detail, but you should know what problem you’re solving. Is it cosmetic, functional, structural or about comfort? What’s essential and what’s optional? How long will you stay in the home, and do you have a target budget or deadline?
Knowing the scope helps you compare companies that actually do your kind of work. Replacing drafty windows calls for a different company than restoring historic wood windows, and a tub-to-shower conversion calls for a different team than a full bathroom gut remodel.
Step 2: Choose the Right Type of Contractor
| Type | What they do | Best for |
|---|---|---|
| General contractor | Manages several trades, subcontractors, permits and inspections | Additions, structural changes and whole-room renovations |
| Specialty contractor | Focuses on one product or trade | Windows, baths and showers, sunrooms, doors, siding or roofing |
| Design-build company | Handles design and construction under one company | Projects where you want one point of responsibility |
| Manufacturer-installer | Makes or supplies its own products and installs them | Homeowners who want one company accountable for the product and the installation |
Joyce Windows, Sunrooms & Baths is a manufacturer-installer for its windows, patio doors and sunrooms, which are made by Joyce, and it provides design, installation and service for its bath, shower and door projects as well.
Step 3: Build a Shortlist and Research Each Company
Start with referrals from friends, neighbors and recent customers with similar projects, then add companies from trusted review platforms, manufacturer directories and local trade organizations. Referrals are valuable because you can see the finished work and ask how the company handled communication, delays, cleanup and service.
For each company, check:
- History: How long has it operated under its current name, and how long has it done this specific type of project?
- Location: Does it have a real office, showroom or service center, not just a mailbox? A salesperson in your area may represent a company based elsewhere.
- Reviews: Look past the star rating for patterns in communication, installation quality, scheduling, pressure, change orders and service after payment, and see how the company responds to criticism.
- Better Business Bureau: Complaint history and company responses are useful background, but a high rating isn’t a guarantee.
Step 4: Verify Licensing and Insurance
Licensing rules vary by state, by trade and sometimes by city. Here’s how they work in the states Joyce serves:
| State | What’s required | How to check | Joyce’s credential |
|---|---|---|---|
| Ohio | No statewide general contractor license. Many cities require their own contractor registration, and plumbing, electrical and HVAC trades are licensed by the state. | Your city or county building department | Check with your local building department |
| Pennsylvania | Contractors who do at least $5,000 in home improvements a year must register with the Attorney General under the Home Improvement Consumer Protection Act. | PA Attorney General contractor search | PA071934 |
| North Carolina | A general contractor license is required for projects of $40,000 or more. | NC Licensing Board for General Contractors | License #74242 |
| South Carolina | Residential work over $500 requires a residential specialty contractor registration, and work over $5,000 requires a residential builder license. | SC LLR license lookup | License #118468 |
Rules change, so confirm current requirements with your state agency and local building department before you sign.
Insurance: Ask for current proof of general liability insurance and, where it applies, workers’ compensation. Don’t rely on a logo or a verbal promise, and ask whether you can verify the certificate with the insurer.
Step 5: Talk to References and Meet at Your Home
Ask for recent customers with projects like yours, similar in product, size, age of home and location. Good questions: Was the final price close to the contract? Was it finished on schedule? Were changes documented before extra work started? Did the crew protect and clean the property? Would you hire them again?
Then schedule an in-home visit. A contractor should measure, inspect the space, look for conditions that affect permits or structure, show you product samples and explain the installation before giving a final price. Be cautious of a firm price for a custom project from someone who hasn’t seen your home. Online calculators, like Joyce’s window and bath cost calculators, are useful for planning, but the final price depends on measurements and site conditions.
Step 6: Ask Who Will Do the Work, and How
The person selling the project often isn’t the person installing it. Ask:
- Are installers employees or subcontractors, and how are they trained and supervised?
- Who handles plumbing or electrical work?
- Who is your main contact, and who comes back if service is needed?
Subcontractors aren’t a red flag on their own. What matters is whether the company verifies their qualifications and insurance, checks the work and stands behind the result.
Ask about the installation, not just the product. A premium product can still fail if it’s measured or installed poorly. For windows, ask about sizing, insulation, flashing and sealing. For baths and showers, ask about wall preparation, base support, seams and drainage. For sunrooms, ask about the foundation, roof connection, drainage, permits and inspections.
Step 7: Compare Detailed Written Estimates
Get written estimates from more than one qualified company. The Federal Trade Commission recommends getting several written estimates and checking a contractor’s reputation, and warns against automatically choosing the lowest bid. A lower price may mean a different product, a narrower scope or weaker warranty support.
| Compare | What to look for |
|---|---|
| Product | The exact manufacturer, collection, size, color, glass, fixtures and options |
| Scope | Removal, disposal, preparation, repairs, installation and interior and exterior finishing |
| Trades | Who handles any plumbing or electrical work |
| Permits | Whether permits are needed, who pulls them and who pays |
| Warranty | Product and labor coverage, length, and whether it transfers to a new owner |
| Schedule | Estimated timeline from contract to completion |
| Payment | Deposit, payment milestones, financing terms and how change orders are billed |
| Exclusions | What’s specifically not included |
Don’t compare only the final number. Ask each company to explain why its price is different. For real-world price benchmarks, see What Homeowners Really Paid in 2026.
Step 8: Read the Warranty and Contract Before Signing
Warranty: Product warranties cover eligible defects in the product itself. Labor warranties cover installation-related issues for a set period. They aren’t the same thing, so ask who issues each one, what’s covered, how long it lasts, whether it’s prorated, whether service calls cost extra and whether it transfers to a buyer if you sell. Joyce’s warranty page explains its product and labor coverage, including a two-year labor warranty on qualifying projects.
Change orders: Rot, water damage or earlier poor work sometimes only shows up once old materials come out. The contract should explain how hidden conditions are documented, how extra work is priced and approved, and whether work pauses until you approve it.
Payment: Avoid paying the full price before meaningful work begins, and be wary of cash-only demands, sudden changes to payment instructions or missing receipts. Consider financing separately from the product decision. Joyce offers financing for qualified homeowners.
The contract: It should list the contractor’s name and license or registration number, the project address, product specifications, scope, exclusions, total price, payment schedule, estimated dates, permit responsibility, change-order process, warranty documents and cancellation rights. Never sign a contract with blank sections, and make sure every verbal promise is in writing.
Contractor Red Flags
- Shows up uninvited, especially after a storm, with “leftover materials”
- Pressures you to sign today or offers a price that expires at the end of the visit
- Won’t provide written specifications, references or proof of insurance
- Avoids talking about permits, or asks you to pull permits yourself
- Wants full payment up front or cash only
- Quotes far below everyone else without explaining why
- Guarantees specific energy savings or resale value
- Won’t explain the warranty or discourages you from reading the contract
Questions to Ask Every Contractor
- How long have you done projects like mine, and can I see recent examples?
- Who makes the product?
- Who will do the installation, and are they employees or subcontractors?
- Which licenses or registrations apply, and can I see proof of insurance?
- Does this project need permits, and who handles them?
- What exactly is included in the price, and what’s excluded?
- How are hidden conditions handled and priced?
- What’s the payment schedule?
- What product and labor warranties apply, and do they transfer?
- Who handles service after installation?
- What’s the timeline from contract to completion?
- Can I take time to review the full contract before signing?
A good contractor answers these clearly without making you feel rushed.
Why Homeowners Consider Joyce
Family-owned since 1955, Joyce has helped more than 21,000 homeowners in Ohio, Pennsylvania, North Carolina and South Carolina with replacement windows, bath and shower remodeling, sunrooms and entry and patio doors. Joyce publishes its installed price ranges and offers instant cost calculators, measures every home before giving an exact price, and provides written warranty information and a customer service team for support after installation. To see how Joyce compares locally, read our comparisons of window companies in Cleveland and Pittsburgh.
FAQ: Hiring a Home Improvement Contractor
How many contractor estimates should I get?
Get written estimates from more than one qualified company, and make sure they’re pricing the same products and scope so you can compare them fairly.
Should I always choose the lowest bid?
No. Ask why the price is lower and confirm the products, preparation, permits, installation, warranties and service are comparable. A lower bid may leave out work another company included.
How do I check a contractor’s license?
Use your state’s lookup: the Pennsylvania Attorney General’s contractor search, the North Carolina Licensing Board for General Contractors or the South Carolina LLR license lookup. In Ohio, check with your city or county building department.
Does a contractor need a license in Ohio?
Ohio has no statewide general contractor license, but many cities require local contractor registration, and plumbing, electrical and HVAC trades are licensed by the state. Check with your local building department.
Who should get the permits?
A qualified contractor should explain which permits are required and who will get them, and that responsibility should be written into the contract. Be cautious if a contractor asks you to pull the permits yourself.
Are subcontractors a warning sign?
Not on their own. Ask who supervises them, verifies their credentials and insurance, checks the finished work and handles warranty service.
How much should I pay up front?
Customary deposits vary by project and state. Avoid paying the full price before meaningful work is done, and make sure the payment schedule is in writing.
What’s the difference between a product warranty and a labor warranty?
A product warranty covers eligible defects in the product. A labor warranty covers eligible installation-related issues for a stated period.
The Bottom Line
The right contractor makes your project easier to understand, not more confusing. Verify licensing and insurance, compare detailed written estimates, ask who will do the work, and read the warranty and contract before you sign. A few extra questions up front can save you from bigger problems once work begins.
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