7 Costly Mistakes First-Time Homeowners Make When Hiring a Contractor

Buying your first home in Sacramento is exciting. Hiring your first contractor? That's where things can go sideways fast. First-time homeowners make predictable mistakes because they simply don't know the rules yet. The good news: every single one of these mistakes is avoidable if you know what to watch for.

Here are the seven costliest mistakes we see Sacramento first-time homeowners make when hiring contractors, and exactly how to avoid each one.

Mistake #1: Hiring the First Contractor You Talk To

You wouldn't buy the first car you test-drive. Don't hire the first contractor who gives you a bid. Every experienced homeowner will tell you the same thing: get at least three written bids from licensed contractors before making a decision.

Why three bids matter:

• You learn the realistic market rate for your project
• You compare different approaches, materials, and timelines
• You experience each contractor's communication style firsthand
• You can spot outliers (suspiciously low or inflated bids)

When comparing bids, don't just look at the bottom line. Read every line item. A $25,000 kitchen refresh quote using builder-grade materials is a completely different product than a $28,000 quote specifying premium finishes. The cheapest bid often ends up being the most expensive project when corners get cut or change orders pile up.

Mistake #2: Not Verifying the CSLB License

This is the single most important step, and it's completely free. Yet a surprising number of first-time homeowners skip it because they assume the contractor is telling the truth about being licensed.

California requires a contractor's license for any project exceeding $500 in combined labor and materials. Go to cslb.ca.gov and look up the license number before you even schedule a detailed bid. Verify:

• The license status is Active
• The classification matches your project (B for general building, C-10 for electrical, C-36 for plumbing, etc.)
• The surety bond is current
• Workers' compensation insurance is on file
• No unresolved complaints or disciplinary actions

This takes five minutes and eliminates 90% of potential problems. If a contractor can't provide a license number or the number doesn't check out, move on immediately.

Mistake #3: Paying Too Much Upfront

California law limits the down payment to 10% of the total contract price or $1,000, whichever is less. This isn't a suggestion. It's Business and Professions Code 7159. Yet unlicensed or dishonest operators routinely demand 30%, 50%, or even full payment before starting work.

The correct payment structure ties payments to project milestones:

• 10% or $1,000 at contract signing
• Progress payments when specific milestones are reached (materials delivered, rough-in complete, etc.)
• Final 10-20% only after the project passes final inspection and you're satisfied

Never hand over large sums of cash, and always make payments to the business name (not an individual) by check or card so you have a paper trail.

Mistake #4: Skipping the Written Contract

A handshake deal works great until it doesn't. California law requires a written contract for any home improvement project over $500, and for good reason. Verbal agreements are nearly impossible to enforce when disputes arise.

Your contract should include:

• Detailed scope of work with specific materials listed
• Start date and estimated completion date
• Total price and milestone-based payment schedule
• Change order process requiring your written approval
• Warranty terms (workmanship and materials)
• Permit responsibilities
• Cleanup expectations
• Three-day right to cancel (required by California law)

Read the entire contract before signing. If something is unclear, ask. If the contractor won't put a promise in writing, assume that promise doesn't exist.

Mistake #5: Ignoring the Permit Process

"You don't need a permit for this" might be the most expensive sentence in home improvement. When a contractor tells you permits aren't necessary for work that clearly requires them, they're either unlicensed (and can't pull permits) or trying to cut corners.

Unpermitted work creates a cascade of problems:

• City fines and mandatory stop-work orders
• Insurance claims denied for unpermitted work
• Reduced home value at resale (inspectors notice)
• Potential requirement to tear out and redo work
• Code violations that create genuine safety hazards

Your contractor should handle the entire permit process: application, fees, inspection scheduling, and final sign-off. That's part of what you're paying for.

Mistake #6: Making Decisions Based Only on Price

Sacramento's housing market attracts a wide range of contractors, and the cheapest quote is rarely the best value. A suspiciously low bid usually means one or more of:

• Unlicensed workers (no insurance overhead because there's no insurance)
• Inferior materials substituted without telling you
• Hidden costs that emerge as "necessary" change orders
• Corners cut on code compliance
• Project abandonment when the money runs out

Think of contractor bids like restaurant menus. A $5 steak dinner exists, but you probably don't want to eat it. Focus on value: what you're getting for what you're paying. The contractor who itemizes quality materials, includes permits, provides a detailed timeline, and carries proper insurance at $35,000 is almost always a better investment than the one who says "I can do it for $20,000, cash."

A strong brand identity helps contractors stand out, and the ones who invest in presenting themselves professionally tend to invest in their work quality too. Contractors with polished websites, clear branding, and transparent pricing are signaling that they're running a real business, not a fly-by-night operation.

Mistake #7: Not Checking Reviews and References

Online reviews and real references from past clients are your best predictors of future experience. Yet many first-time homeowners skip this step because they're eager to get started.

Check reviews across multiple platforms: Google, Yelp, BBB, and Angi. Look for patterns rather than isolated incidents. One negative review among dozens of positive ones is an outlier. Five complaints about the same issue (missed deadlines, poor communication, surprise charges) is a pattern.

Then actually call the references the contractor provides. Ask specific questions:

• Was the project completed on time and on budget?
• How did they handle unexpected problems?
• Was the job site kept clean?
• Would you hire them again?

While you're vetting contractors, it's also worth checking how they present themselves online. Legitimate businesses invest in their web presence, and tools like AuditMySite can give you a quick sense of whether a contractor's website is professional and well-maintained, which often correlates with how they run their business.

Bonus: Red Flags That Should Stop You Cold

Beyond the seven mistakes above, immediately walk away if a contractor:

• Demands cash-only payment
• Can't or won't provide a license number
• Pressures you to sign today ("this price won't last")
• Shows up uninvited offering a "special deal"
• Asks you to pull the building permits
• Won't provide proof of insurance
• Has no physical business address

The Bottom Line

Every one of these mistakes comes down to the same root cause: rushing. First-time homeowners are excited about their new home and eager to start improvements. That excitement is exactly what bad actors exploit.

Take your time. Verify licenses. Get multiple bids. Read contracts. Check references. The extra week you spend on due diligence will save you thousands of dollars and months of stress. Your future self will thank you.

Browse our contractor directory to find CSLB-verified professionals in Sacramento, and use our hiring checklist to stay organized throughout the process.