Questions to Ask a Builder When Building a Custom Home
Questions for a custom home builder before you sign, covering how the job is priced, what the allowances really cover, what is excluded from the estimate, who is on site each day, how change orders and substitutions are handled, the payment schedule, lien waivers, warranty and the punch list.
The questions
Open any question for the note
How many custom homes have you finished in the last three years, and how many are underway now?
Why ask it
Recent volume matters more than years in business, because crews, subs and suppliers turn over. The second number is the one people forget to ask: a builder running six jobs with one superintendent will be on your site for minutes a day.
Can I visit a house you are framing now and one you finished two years ago?
Why ask it
The framing visit shows you how a site is run: whether it is tidy, whether anyone is working, whether materials are protected from weather. The two-year-old house shows what settles, cracks and sticks after the warranty enthusiasm has faded.
Which parts of the work does your own crew do, and what goes to subcontractors?
Why ask it
Some builders are general contractors coordinating trades and nothing more, which is fine if you know it. The important follow-up is how long they have used their framer, plumber and electrician, because relationships of five years or more usually mean fewer arguments over rework.
Who will be on my site every day, and how many other jobs do they run?
Why ask it
Name the person, not the company. The daily superintendent decides whether a wrong window gets caught before the siding goes on, and if they are covering four houses across a county the answer is usually no.
What is your licence and insurance position, and can I be named on the policy?
Why ask it
Requirements vary by state, so ask for the licence number, general liability limits and workers compensation coverage, and verify them yourself rather than accepting a certificate by email. Being named as an additional insured is a reasonable request, and resistance to it is informative.
How is this priced: fixed price, cost plus, or a guaranteed maximum, and why that one?
Why ask it
Each moves risk between you and the builder. Fixed price hides the contingency in the number, cost plus exposes every invoice and can drift, a guaranteed maximum caps the drift. Ask what happens to savings under cost plus, since that clause is where most disputes start.
What allowances are in this estimate, and what would you actually budget for each?
Why ask it
Allowances for tile, fixtures, appliances, lighting and flooring are where a budget quietly grows by tens of thousands. Ask the builder for the number they would use in their own house, then compare it to the allowance and price the difference now.
What is not in this price that I will still have to pay for?
Why ask it
The usual exclusions are site work, utility connections, well and septic, driveway, landscaping, permit fees and sales tax. A builder who can list their own exclusions from memory has had this conversation before; one who says everything is included has not read their own contract.
Which decisions do I need to make before you break ground, and by when?
Why ask it
Late selections cause more delays on custom homes than weather does, because rough plumbing and electrical depend on choices people think of as decorative. Ask for a written selections calendar with dates, and treat it as a deadline rather than a suggestion.
How do you and my architect work together, and who decides when the drawings and the field disagree?
Why ask it
This happens on every custom build. You want a named process: a request for information, a written answer, and a record of what changed. Without one you get verbal decisions in a driveway and an argument about them at closing.
What have you built on a site like mine, and what did it cost you in surprises?
Why ask it
Slope, rock, water table, tree removal, access for a concrete truck: these change the number before a wall goes up. A builder who has worked in your area will name specific local conditions, which is a good sign that the site work line is not a guess.
What is your schedule for this house, and what is the longest one of yours has run over?
Why ask it
Ask for the overrun in weeks and what caused it. Every builder has one, and the honest answer usually involves a permit, a long-lead item, or an owner making late changes, all of which you can plan around.
What does the contract say if the completion date slips?
Why ask it
Written remedies show whether the date is a commitment or an estimate. Look for how delays are documented, which causes are excused, and whether anything compensates you for rent or storage. Silence on this means the schedule is unenforceable.
What is the payment schedule, and how far ahead of the work do payments run?
Why ask it
Draws should follow completed phases, verifiable on site, not the calendar. A builder asking for a large deposit or payments that outrun the work is financing their business with your money, and you are the unsecured creditor.
How do you handle lien waivers from subcontractors and suppliers?
Why ask it
If a builder is paid and does not pay a sub, the lien lands on your house even though you paid in full. Conditional and unconditional waivers with each draw are the standard protection, and any builder who has been in business a while will know exactly what you are asking.
Who pulls the permits, and which inspections are you responsible for?
Why ask it
Permits pulled in the owner's name shift liability onto you, which is occasionally proposed to save money and rarely a good trade. Ask which inspections happen, who meets the inspector, and what a failed inspection does to the schedule.
How do change orders work: who signs, what does the markup cost, and how long does approval take?
Why ask it
You want no work done without a signed order stating price and schedule impact. Ask the markup percentage on changes and whether it also applies to credits, because a builder who marks up additions but not deductions is not sharing the risk.
If a specified product is unavailable, how do you price and document a substitution?
Why ask it
Lead times on windows, appliances and specialty trim slip regularly. The workable answer is that you approve the substitute in writing with a price adjustment either way. Builders who substitute quietly to hold the schedule leave you finding out at the walkthrough.
What does your warranty cover, for how long, and who do I call in month fourteen?
Why ask it
Separate the builder's own warranty from manufacturer warranties on the products. Ask specifically about nail pops, drywall cracks, grading and drainage, since those are the common first-year complaints and the most commonly excluded. Also ask how a claim is submitted once the crew has moved on.
How does the final walkthrough and punch list work, and what money is held back until it is done?
Why ask it
Retainage is your only remaining leverage after you move in, so establish the amount before you sign. Ask how long punch items typically take to close out and who verifies them, because a list with no deadline can sit for a year.
Tell me about a build that went badly and how it ended.
Why ask it
Save this for last. A builder who has been working for a decade has had a bad job, and the ones worth hiring will describe what they fixed and what it cost them. A claim that nothing has ever gone wrong is either inexperience or something they would rather not discuss.
Choosing and managing a custom home builder
Practical guidance for the conversation itself
Before you sign anything
Compare bids line by line, not by total
Two builders can bid the same house thirty percent apart because one carries realistic allowances, site work and contingency and the other does not. Ask each to bid the same written scope with the same allowance figures, or the comparison is meaningless.
Talk to owners the builder did not nominate
Ask for an address list of recent homes and knock on a door or two. Also ask the builder for a client who had a difficult build; the response to that question is often more useful than the reference itself.
Have a construction lawyer read the contract
A few hours of review against a build costing hundreds of thousands is proportionate. The clauses that matter are payment and draws, change orders, delay, dispute resolution, warranty and termination. Pay attention to whether disputes go to arbitration and who selects the arbitrator.
Check the money side of the builder, not just the work
Ask their supplier and lumber yard whether they pay on time, and look for liens filed against past projects in the county records. Builders fail mid-project more often than they build badly, and an unpaid supplier is the earliest visible symptom.
During the build
- Visit at the same time each week and photograph everything, especially before drywall closes the walls.
- Put every decision in email, even ones made in person, and start the message with the date it was agreed.
- Keep one running log of change orders with running total, because the third one is where people lose track of the budget.
- Ask for the long-lead item list at the start and check the order dates yourself.
- Do not release a draw for work you cannot see completed on site.
Where custom home budgets break
Allowances set to win the bid
Low allowances make an estimate look competitive and turn into overages nobody planned for. Price your actual selections against each allowance before signing, not after framing.
Changing your mind after the framing stage
A wall moved on paper costs nothing; the same wall moved after rough-in costs mechanical rework, inspection and time. Do the deciding early even when it feels premature.
No contingency of your own
Set aside a reserve separate from the contract price for the things nobody bid: rock in the excavation, a utility connection further away than expected, a change you will genuinely want. Assume you will use it.
Paying ahead to keep the peace
Once payments run ahead of progress you have lost the only leverage you had. Being firm about draws is not hostility; good builders expect it and structure their own cash flow around it.