Business
Working with builders and general contractors: how countertop fabricators win, run and protect trade accounts
How fabricators work with GCs and home builders: what they value, pricing and payment terms, contracts and lien rights, concentration risk, portals and communication.
, CEO, Stonify
General contractors (GCs) and home builders can fill a fabrication shop's schedule with steady, repeat work that needs no showroom time. In return they expect lower prices, payment on terms instead of deposits, and above all reliable dates, because countertops sit on the critical path of every kitchen they build. The accounts that stay profitable have a written agreement covering scope, change orders, payment and site readiness, a trade price tied to real volume, protected lien rights, and a cap on how much of the shop's revenue any one builder controls. Clear, proactive communication keeps them, and a single missed install date with no warning can lose them.
Who the trade customers are
"Contractor work" covers several very different customers. Knowing which one you are dealing with sets the price, the terms and the paperwork.
Account type | Typical job | Volume | What they care about most | Payment |
|---|---|---|---|---|
Kitchen remodeler or residential GC | One kitchen or bath, often mid-to-high budget | A few to a few dozen jobs a year | Dates, clean crews, handling their client well | Deposit or net-15 to net-30 |
Custom home builder | Whole house, more design choices | Several homes a year | Quality, coordination with other trades | Net-30, sometimes tied to draws |
Production (tract) builder | Repeat floor plans, fixed selections | Dozens to hundreds of units | Schedule for closings, consistency, price | Net-30 to net-60, sometimes longer |
Commercial GC | Restaurants, offices, healthcare, multifamily | Irregular, large jobs | Submittals, schedule, compliance | Net-30 to net-60 plus retainage |
Home-center installed program | Retail countertop orders placed through a big-box store | Steady, PO-driven | Program rules, milestone dates, paperwork | Program terms |
Kitchen and bath dealers who resell countertops behave like a mix of contractor and referral partner; see referrals and trade partners.
Referral model or subcontract model?
There are two ways a GC relationship can work, and they carry different risks.
Referral model. The GC sends the homeowner to you. The homeowner signs your contract and pays you directly, usually with a deposit. The GC may get a referral fee or trade pricing. Your customer is the homeowner.
Subcontract model. The GC is your customer. You invoice the GC, who marks up your price (commonly 10 to 20%) and bills the homeowner. You usually wait for the GC's payment cycle and depend on the GC's cash flow.
Most remodel work mixes the two. Decide which model applies before the first job and write it down, because it decides who approves changes, who pays and when, and who you call when something goes wrong.
What contractors and builders actually value
Ask GCs why they switched fabricators and price is rarely the first answer. Their list usually looks like this:
Schedule reliability. Countertops go in after cabinets and before plumbing final, backsplash tile, paint touch-up and final clean. A countertop delay pushes every trade after it. On a builder's house it can push a closing, which costs the builder interest and carrying costs every day.
Warning before a date slips, not after. A GC can rearrange a schedule with two days' notice. They cannot fix a no-show.
One point of contact who answers the phone and knows their jobs.
Consistent quality. It is expected, not a selling point. Callbacks and remakes are what they remember.
Competitive, predictable pricing. Not necessarily the cheapest. The same job should get the same price every time.
Paperwork on demand. A certificate of insurance within a day, clean invoices that match the purchase order, change orders in writing.
Crews who represent them well in front of their client.
How the schedule works on contractor jobs
For in-stock material, a typical template-to-install time is about 5 to 10 business days. It breaks down roughly like this:
Step | Typical time |
|---|---|
Scheduling the template visit after cabinets are set | 1 to 3 business days |
Template appointment | 1 to 2 hours |
Programming, cutting, edging and polishing | 2 to 4 days |
Quality check and install scheduling buffer | 1 to 3 days |
Slab ordered from a distributor | add about 3 to 7 business days |
Exotic or imported stone not in the region | add several weeks |
Busy season (spring into summer in most markets) can stretch every step. Builders often accept 10 to 15 days on production work if the date, once given, holds.
Two rules prevent most schedule fights:
Cabinet-ready means ready. Cabinets fully installed, level, shimmed and fastened, with the sink, faucet and appliance specs on site. Define this in writing and charge a re-template or trip fee (typically $150 to $350) when the site is not ready.
Confirm dates 48 hours ahead, and tell the GC the same day if anything changes.
Commercial work moves on a different clock. Before the shop can cut, the GC and architect usually need submittals: shop drawings, material samples and product data for approval. Approval can take weeks. Work is often delivered in phases, and payment carries retainage, a share of each payment (commonly 5 to 10%) withheld until the project is complete. See commercial specifications and submittals and scaling and commercial growth.
Pricing trade accounts without giving away the margin
Trade customers pay less because they cost less to serve: no showroom visits, fewer design revisions, repeat layouts, and batched templating and installs. They also cost more in some ways: slow payment, more change orders, and higher insurance requirements. The discount should pay for the savings and nothing more.
Typical trade discounts run about 5 to 25% off retail depending on volume, and builder work usually lands at around 25 to 40% gross margin compared with 40 to 50% on retail (2026 U.S. rules of thumb, not survey data). The full method, including how to calculate the largest discount you can afford, is in builder, contractor and commercial pricing.
A quick example shows why discounts deserve care. A kitchen retails for $3,200 and costs the shop $1,900 to produce. At retail the gross profit is $1,300, a 40.6% margin. At a 20% trade discount the price is $2,560 and the gross profit is $660, a 25.8% margin. A one-fifth price cut roughly halved the profit on the job. The volume has to make up for that, and the account has to pay on time.
Practices that keep trade pricing healthy:
Tie discounts to volume in writing, with a clause that returns the account to standard pricing if volume drops.
Price extras separately: templating, edge upgrades, extra cutouts, trip fees and a minimum charge per install location.
Limit the selection for builder programs to a few colors and edges. Anything outside the list is quoted separately.
Sell buyer upgrades yourself where you can, at retail less a modest builder discount, rather than letting the builder buy them at builder rates and mark them up.
Add a price-escalation clause to any price lock longer than a few months, since slab costs and tariffs move.
Check sales tax treatment. Selling to a builder for a new home can be taxed differently from a retail sale, depending on the state.
Payment terms and protecting your cash
Retail customers pay a deposit and the balance at install. Contractors and builders usually want terms, which means the shop buys the slab, pays its crew and waits 30 days or more after install to be paid. On a busy month that can tie up a lot of cash.
Start new accounts on deposits for the first few jobs, then move to net-30 after a credit application and clean payment history.
Push for net-30. Treat net-45 or net-60 as a cost to price in, not a favor.
Add a late fee (1.5% a month is common where state law allows it) and apply it.
Get a signed purchase order or work order before you buy material.
Escalate overdue accounts in steps: reminder a few days after the due date, phone call, deposits required on new work, prepayment, then stopping new work. Many shops use a lien notice around 60 to 90 days.
Lien rights, lien waivers and payment clauses
A mechanic's lien is a legal claim against a property for unpaid work or materials on it. It clouds the title, so the owner cannot easily sell or refinance until it is resolved, which makes it a strong collection tool. Lien rules are set by each state and the deadlines are strict.
Preliminary notice. Many states require a subcontractor or supplier without a direct contract with the owner to send a notice early in the job, or lose lien rights. California's is the 20-day preliminary notice.
Recording deadline. A lien must be recorded within a set time after the work is complete. In California a subcontractor generally has 90 days after completion if no notice of completion is recorded (Civil Code section 8414), and less if one is. Other states range widely. Put every deadline on the calendar.
Conditional vs unconditional waivers. A conditional lien waiver gives up your lien rights only once the payment actually clears. An unconditional waiver gives them up regardless. Never sign an unconditional waiver before the money is in your account.
Pay-when-paid vs pay-if-paid. A pay-when-paid clause lets the GC wait a reasonable time for the owner's payment. A pay-if-paid clause tries to make the owner's payment a condition, so the GC might owe you nothing if the owner never pays. Enforceability varies by state; California, for example, does not enforce pay-if-paid as a full defense.
Public projects. You cannot lien public property. Instead, subcontractors are protected by the GC's payment bond (the Miller Act for federal work, and state "Little Miller Acts"), with their own notice deadlines.
This is general information, not legal advice. Have a construction attorney review your standard terms and any builder contract before you sign it. Deposits, change orders and collections are covered in contracts, deposits and payments.
What the contract should cover
Builder and GC contracts are often written by the builder, in the builder's favor. Whether you use yours or theirs, make sure these points are settled in writing:
Scope: materials by name and thickness, edges, cutouts, backsplash, what is excluded (plumbing, electrical, tile).
Site readiness: cabinet-ready definition, temperature and access requirements, and the fee for a site that is not ready.
Lead times and how much notice each side gives for templating and installs.
Change orders: priced and signed by an authorized person before the work changes. On GC jobs, changes route through the GC even when the homeowner asks you directly.
Payment terms, late fees, deposits and retainage.
Warranty: your workmanship warranty, and no promise longer than the material manufacturer's own coverage.
Indemnification limited to your own work, not other trades' defects.
Lien waivers: conditional only, exchanged for payment.
Price lock period and escalation.
Dispute resolution and venue. Watch for arbitration in a distant county.
Commercial GCs often use a standard subcontract such as the AIA A401, with insurance minimums and indemnity language that deserve an attorney's review.
Insurance and paperwork contractors will ask for
General liability: commonly $1 million per occurrence and $2 million aggregate for residential work, often higher for commercial jobs. GCs usually want to be named as additional insured.
Workers' compensation for employees, required in almost every state.
Commercial auto for delivery and install vehicles.
Certificates of insurance within a day of the request. Slow certificates cost shops accounts.
Licensing that fits your state's rules for countertop work, which vary widely. Check your state's contractor licensing board.
Safety training such as OSHA 10-hour cards, often required by commercial GCs before crews can enter the site. Any cutting or grinding on site falls under OSHA's construction silica standard (29 CFR 1926.1153).
See insurance and risk.
How much builder work is too much?
Builder volume is attractive because it fills the saw every week. It is dangerous in concentration. Builder demand follows housing starts, and the 2008 housing crash put fabricators out of business that depended on a few builders. Heavy builder work also wears on the rest of the shop:
Cash tightens as more revenue sits in 30-, 60- or 90-day receivables.
Margins slide as builders push for concessions at every renewal and expect extras absorbed.
Crews get stretched. The best installers end up on builder sites where speed matters, and retail jobs that pay full price get the newer crew.
Reputation stalls. Buyers of new homes know the builder's name, not yours, so builder work produces few reviews or referrals for the shop.
Inventory risk grows when you stock a builder's approved colors and the builder slows down.
Common rules of thumb among fabricators: keep builders to about 40 to 50% of revenue, and no single customer above about 15 to 20%. Protect at least one install crew for retail work, and keep collecting retail reviews even when builders keep you busy. If builders already dominate, reduce the share over 18 to 24 months rather than overnight, which would create a cash crisis.
Review every trade account each quarter
Measure | Healthy | Needs a conversation or an exit |
|---|---|---|
Gross margin on the account | Above about 30 to 35% | Below about 30% |
Average days to payment | Within about 45 days | Past 60 days |
Re-template or trip rate | Rare (under about 5% of jobs) | Frequent unready sites |
Change orders | Documented and paid | Constant undocumented field changes |
Pricing | Stable | Repricing demands every quarter |
Communication that keeps accounts
GCs and builders juggle many jobs and many subs. What they need from you is status on all their jobs without having to call.
A workable cadence:
Quote within 24 to 48 hours of the request, same day for simple repeat layouts.
Confirm template and install dates at least 48 hours ahead.
Send a short update the same day at template complete, fabrication complete and install complete.
Call, don't text, when a date is going to slip, and do it before the date passes.
Keep a written record of every change and every approval. Verbal approvals given on site are the classic source of disputes.
Share with contractors what they need: job status, dates, quotes, slab selection photos, layout drawings and invoices. Keep internal: your production schedule details, margins, supplier costs and other contractors' pricing.
Contractor portals
A contractor portal is a web page or app where a trade customer logs in to see all their jobs with the shop: status, dates, documents, drawings and invoices, sometimes with a way to submit new jobs through a form. Compared with a homeowner portal, which shows one job, a contractor portal shows many jobs at once and trade pricing.
Portals help when a shop has several active trade accounts and the office spends real time answering "where is my job?" calls. Structured submission forms also help, because they force the contractor to supply the address, layout, material, edge, thickness, sink model and backsplash before the job is quoted. Two limits to remember:
A portal does not replace a written scope, an install date confirmation or signed change orders.
It only works if the status is kept current. A portal that shows last week's status is worse than a phone call.
Vendor claims about call reductions and adoption rates come from the vendors selling portals, so pilot one with two or three accounts before you rely on it. See CRM and customer portals.
Common failure points and how to prevent them
Problem | Prevention |
|---|---|
Templating before cabinets are ready | Written cabinet-ready confirmation, re-template fee in the contract |
Material substituted without approval | Written sign-off on material, color and lot |
Seam placement dispute | Seams marked on the approved layout and signed |
Out-of-level cabinets found after cutting | Check and record level at template, with photos |
Appliance cutout wrong | Take dimensions from the actual appliance spec sheet at template |
Slow payment | Deposit on new accounts, signed PO, lien deadlines on the calendar |
Homeowner asks the installer for a change | Installer refers it to the GC, change order before work |
Recovering after a missed date
Call the GC personally. Explain what happened and what you changed, give a firm new date, and consider a price concession on the affected job. Then get the next several jobs exactly right. One mistake handled well is usually forgiven; a second one in a row usually ends the account.
Where software helps
Trade accounts go wrong when each salesperson remembers a different price and a builder's special terms live in someone's head. In Stonify:
Pricing tiers (for example Retail and Contractor) hold trade prices per product and service, and a project type such as Builder applies its default pricing tier, sales tax and payment terms to every new project of that type.
A customer catalog limits a builder's quotes to its approved colors, edges and sinks, and Plans store a builder's standard floor-plan quotes for reuse. A package multiplier quotes 20 identical unit kitchens as one package.
A sales restriction can warn or block new quotes for a contractor with overdue invoices, and Aged Receivables can be viewed by salesperson so each rep follows up on their own accounts.
Builders can get their own default invoice template, and payment terms can carry a net-30 due date or a deposit percentage.
Through the AI connector, an assistant such as Claude can read a builder's PDF purchase order and create a draft quote with that builder's pricing tier, for an estimator to check. The Cost & Profit Report and Quote Performance filtered by project type show whether contractor work is actually earning its discount.
FAQ
Should I sign an exclusivity agreement with a builder? Usually no. It limits your growth and deepens your dependence on one customer. Consider it only in exchange for a firm, written volume commitment.
Who pays when the homeowner changes their mind on a GC job? The party that ordered the change, through the GC. Price the change, send it to the GC for signed approval, and don't cut until you have it.
Can I contact the homeowner directly on a GC job? For scheduling and access, yes, if the GC agrees. For price, scope and future work, go through the GC. Selling directly to a GC's client behind their back ends the relationship.
Do I need to carry more insurance for commercial work? Often yes. Commercial GCs commonly ask for higher general liability limits than residential work, sometimes with an umbrella policy, plus bonding on public projects. Check the bid documents before you bid.
How many contractor accounts can a shop manage? It depends on staff, not a formula. Many mid-size shops find that past 10 to 20 active trade accounts they need someone whose job is account management.
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