The most useful home remodeling do’s and don’ts come from contractors who’ve completed hundreds of projects – not from generic checklists. These home remodeling do’s and don’ts distill the lessons from RnD Builders projects across LA and Ventura County.
Ask a lot of questions. Interview every contractor. Get firm commitments on price and timeline before you sign anything. That is the short version. Below are the home remodeling do’s and don’ts that keep a project on track – for the contractor relationship, the project itself, and your day-to-day life during the work. Every one of these lessons comes from projects we’ve completed across Los Angeles, the San Fernando Valley, and Ventura County.
Working With Your Contractor
Your contractor is a business partner for the next few months. The relationship sets the tone for everything else.
DO
- Ask lots of questions. Interview each contractor. Get firm commitments on scope, timeline, and cost. Confirm they hold a current license and insurance. This is not being pushy. It is due diligence. Knowing exactly what general contractor services include also gives you the vocabulary to ask better questions during interviews.
- Get everything in writing. A detailed contract protects both sides. It should list materials, brands, model numbers, and a payment schedule tied to milestones.
- Check references and reviews. Ask to see past projects. Call two former clients. Read Google and Yelp reviews.
- Stay reachable. Answer texts and calls the same day when you can. Decisions on tile, paint, or fixtures often need to happen fast.
- Verify the license yourself. Look up the contractor on cslb.ca.gov. Confirm the license is active, in the correct classification (B for general building), and shows current workers’ comp and bond.
DON’T
- Don’t hire on price alone. The lowest bid is often the most expensive project. It usually signals a light scope, cheap materials, or change orders down the road.
- Don’t pay a large deposit up front. California caps residential remodel deposits at 10% or $1,000 – whichever is less. Anything more is a red flag.
- Don’t skip the permit. Unpermitted work causes problems when you sell, refinance, or make an insurance claim.
- Don’t hover. Trust your team. Ask questions at the end of the day rather than mid-task.
- Don’t accept a handshake agreement. No matter how well you know the contractor, get everything in a written contract. California law requires it for any project over $500.
Planning the Remodel
DO
- Decide what you want before work begins. Pick the tile, the cabinet finish, the paint colors, and the fixtures ahead of time. Mid-project changes cost real money.
- Build in a 15–20% contingency. Older homes almost always reveal something – old wiring, rotted framing, hidden plumbing. Reserve funds for it.
- Prioritize function over trend. Layouts and structural choices last for decades. Trendy finishes date quickly.
- Think ahead. If you might expand later, plan wiring, plumbing, and framing now.
- Match your investment to your neighborhood. A $150K kitchen in a $700K home won’t return anything close to that at resale. In Woodland Hills or Calabasas, that same kitchen makes sense in a $1.5M+ home.
DON’T
- Don’t over-improve for the neighborhood. Match your investment to comparable home values.
- Don’t cheap out on the invisible parts. Framing, waterproofing, and insulation matter more than the visible finishes.
- Don’t ignore lighting. Layered lighting transforms a space. Plan it early – it is difficult to add later.
- Don’t skip a design phase. Homeowners who insist on jumping straight to construction almost always end up making design decisions mid-build, at 3-5x the cost of deciding upfront.
Budgeting and Contracts
DO
- Get an itemized bid, not a lump sum. A real bid lists every material, brand, and quantity. See our guide on estimate vs quote vs bid.
- Tie payments to milestones. Never pay for work that hasn’t happened yet. A typical schedule: 10% deposit, then draws at demo complete, rough-in complete, drywall complete, finishes complete, and final walkthrough.
- Understand allowances. Allowances are dollar figures the contractor uses when you haven’t selected finishes yet. If the tile allowance is $2,500 but you want porcelain slab at $8,000, the difference is on you.
- Read the change-order clause. Every project has changes. Make sure the process for pricing and approving them is spelled out before you sign.
DON’T
- Don’t sign a contract without reading every line. If the contractor rushes you, that’s a red flag.
- Don’t pay in cash. Ever. Cash-only contractors are almost always unlicensed or hiding tax obligations.
- Don’t approve verbal change orders. If it isn’t in writing with a price attached, it doesn’t exist.
- Don’t underestimate soft costs. Permits, plan check, engineering, design, and inspection fees can total 5-10% of a whole-home remodel.
Living Through the Work
DO
- Set up a temporary space. A working kitchen area with a microwave, coffee maker, and sink access saves your sanity during a kitchen remodel.
- Protect the rest of your home. Cover floors and furniture in adjoining rooms. Dust travels farther than you think.
- Talk to your neighbors. Give them a heads up about noise and parking. Good relationships matter later.
- Plan for pets and kids. Construction sites are hazards. Set up safe zones and consider boarding pets during demo weeks.
DON’T
- Don’t demo anything until replacements are on site. Cabinets, tile, and fixtures have long lead times. Empty rooms mean stalled work.
- Don’t leave valuables or breakables in the work zone. Vibration from demo and framing damages fragile items.
- Don’t expect zero mess. Even a well-run project generates dust. Expect it, plan for it, and it becomes manageable.
- Don’t visit the site during active work without checking in. Safety is a real concern – hard hats, active tools, exposed nails. Coordinate walkthroughs with your project manager.
Permits and Code – The Do’s and Don’ts Homeowners Miss
DO
- Insist your contractor pulls permits. That’s how it should work. Contractor pulls, contractor is liable.
- Ask which permits are required. Kitchens, baths, additions, and ADUs almost always need permits in LA and Ventura County jurisdictions.
- Attend the final inspection when possible. Understanding what the inspector checks is useful when you sell later.
DON’T
- Don’t accept “we don’t need a permit for this.” If any of these are true – moving walls, moving plumbing, changing electrical circuits, adding square footage, structural work – you need a permit. Period.
- Don’t pull an owner-builder permit for a contractor’s work. This shifts liability, workers’ comp exposure, and code enforcement responsibility onto you. Contractors who ask for this are hiding an inactive license or worse.
The Home Remodeling Do That Prevents Most Problems
Know what you want before your contractor starts. Do your research. Ask questions. Get every important detail in writing. A remodel done this way finishes on time, on budget, and looking exactly like you pictured it.
Home Remodeling Do’s and Don’ts FAQs
What’s the biggest mistake first-time remodelers make?
Hiring on price alone. The lowest bid is almost always the most expensive project once change orders, missed scope, and quality issues surface. Compare bids against identical scope and materials – never just the bottom-line number.
How much should I hold in contingency for a remodel?
15-20% on older homes (pre-1985 in LA). 10% on newer homes with recent electrical and plumbing updates. Contingency you don’t spend comes back to you. Not having it turns solvable problems into stopped jobs.
Do I really need permits for a home remodel?
Yes, for anything past a like-for-like fixture swap. Moving plumbing, altering electrical, changing framing, or adding square footage all require permits in LA County and Ventura County jurisdictions. Unpermitted work causes problems at sale, refinance, and insurance claim time.
How long should I expect a home remodel to take?
Kitchen: 8-12 weeks active construction. Bathroom: 5-8 weeks. Whole-home remodel: 6-9 months. Home addition: 4-8 months. Custom home: 18-24 months from design start to move-in. Add 4-8 weeks upfront for permits on any project.
Should I move out during a home remodel?
For single-room remodels (one bath, one kitchen), no – most homeowners stay if there’s a second bathroom or a workable temporary kitchen. For whole-home remodels lasting 6+ months, moving out saves the marriage. Ask us during planning.
Work With a Licensed Design-Build Team
RnD Builders Inc is a California-licensed (B) general contractor and design-build firm with 300+ completed projects across Los Angeles and Ventura County.
Request a free estimate or call (805) 367-1965.
From planning to permits, our bathroom remodeling services make projects like this simple – including for homeowners in Westlake Village and Agoura Hills. Free estimate: (805) 367-1965.
Want professional help with this project? Our home addition services cover everything from design to final inspection – serving Moorpark, Camarillo, and beyond. (805) 367-1965.
Verify Any Contractor Before You Hire
- NAHB homeowner remodeling guide: nahb.org
For related pricing and process details, read our post on how to prepare and pack for a remodel.
Homeowners often pair this with our post on can you remodel a condo.
For a companion read on this topic, see our post on tips for replacing your home flooring.
For a companion read on this topic, see our post on top 10 remodeling mistakes to avoid.
Before you finalize plans, review our post on 5 ways to make your remodel a success.
