Residential builders moving into commercial work usually assume it is the same trade at a larger scale. The construction is often simpler; everything around it is harder. The compensation is repeat volume from a single relationship — one property manager replacing a year of chasing homeowners.
In this article
- Commercial is a different customer, not a bigger house
- Who actually buys tenant improvement work
- Bidding to plans and specifications
- The contract you will be handed
- A job in numbers
- Working in an occupied building
- Cash flow is the real barrier
- How to actually get in
- Five mistakes
- The five numbers
- Frequently asked questions
Commercial is a different customer, not a bigger house
Residential builders who move into commercial and tenant improvement work usually assume it is the same trade at a larger scale. It is not. The construction is often simpler; everything around it is harder.
The buyer is not emotional and does not need to be persuaded about craftsmanship. They need a number, a date, proof of insurance, and confidence you will not create a problem for them with their landlord, their tenant or their own management. Nobody cries about a backsplash and nobody is living in the space while you work — but there are drawings, specifications, submittals, a schedule with real consequences, and a contract written by somebody else's attorney.
The compensation for all that friction is the reason to do it: repeat volume from a single relationship. A property manager with fourteen buildings, a franchise doing six buildouts a year, a landlord turning over suites — one relationship replaces a year of chasing homeowners.
Commercial work pays later, demands more paperwork and forgives fewer schedule mistakes — and in exchange it gives you a buyer who calls you again without being marketed to. Whether that is a good deal depends entirely on whether your balance sheet can carry the float.
Who actually buys tenant improvement work
Property managers and building owners. The core relationship. They turn over suites continuously, they value predictability far above price, and one contact can produce years of work.
Tenants directly. A business fitting out a new space — a clinic, a restaurant, an office, a gym. Often first-timers, often under a landlord's deadline, and usually working to an allowance the landlord provided.
Franchise and multi-location brands. Standardized buildouts, national specifications, and a rollout schedule. If you can execute one to spec and on time, the next four come without a bid.
Architects and designers. They specify, they get asked who can build it, and their recommendation carries weight the way a residential referral does.
General contractors on larger projects, if you work as a subcontractor in a specific trade.
The pattern to notice: almost none of these are found through advertising. Commercial work is a relationship business with a sales cycle measured in months, which is precisely why it is less crowded than the residential market you are leaving.
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Bidding to plans and specifications
Residential estimating is largely conversational. Commercial bidding is a document exercise, and losing money here is a paperwork failure rather than a pricing one.
Read the specifications, not just the drawings. The specification book carries the requirements that cost money: materials, finishes, testing, warranties, submittal obligations, cleanup standards. Bidding from drawings alone is how a job gets won at a price that never included what was actually required.
Write your inclusions and exclusions explicitly. What you are not doing matters more than what you are. Fire alarm, sprinkler modifications, low voltage, permit expediting, after-hours premiums, temporary protection, final cleaning — name every one, in or out.
Price the general conditions separately and honestly. Supervision, temporary facilities, protection, dumpsters, safety compliance, submittals and closeout documentation. On tenant improvement work these commonly run 8% to 15% of the job, and residential builders routinely omit them because there is no equivalent line in a house.
Price the schedule requirement. Night work, weekend work, restricted access hours and phased occupancy all carry real labor premiums, and they are usually stated in the bid documents where they are easy to skim past.
Note the addenda. Bid documents change during the bid period. A bid submitted against superseded drawings is either rejected or, worse, accepted.
The contract you will be handed
In residential work you write the contract. In commercial work you sign theirs, and there are clauses in it that decide whether the job is profitable.
Retainage. Commonly 5% to 10% withheld from every payment until completion, sometimes long after. That is your margin sitting on somebody else's balance sheet for months, and it has to be planned for rather than discovered.
Payment terms and pay-when-paid clauses. If you are a subcontractor, your payment may be contingent on the general contractor being paid. Read it, and price the float.
Liquidated damages. A stated daily amount for finishing late. On a fast-track retail buildout tied to a lease commencement date, this can consume the entire margin of a job that finishes only slightly late. Price it or negotiate it.
Indemnification and insurance requirements. Limits are often higher than residential builders carry, additional insured status and waiver of subrogation are usually required by endorsement, and some indemnity language is broad enough that your policy will not respond to it. Send it to your agent before signing, not after a claim.
Change order procedure. Often stricter than anything in residential work: written approval before proceeding, specific notice periods, and forfeiture of the claim if the process is not followed. Work performed on a verbal instruction in commercial construction is frequently work you will not be paid for.
A job in numbers
A 4,200 square foot office tenant improvement, contract value $318,000:
Estimated:
• Direct cost of work: $232,000 · general conditions $31,000
• Gross margin at 17.3%: $55,000
What actually happened to a residential builder's first one:
• General conditions underestimated — submittals, safety compliance and daily reports: +$9,400
• After-hours work required in an occupied building, not priced: +$7,200
• Two change orders performed on a verbal instruction from the tenant, later refused because they lacked written approval: +$6,800 unrecovered
• Retainage of 10% held 96 days past completion: carrying cost $1,300
• Final gross margin: $30,300, or 9.5%
The construction went well. The job lost 45% of its expected profit to three document problems and one cash-flow assumption, none of which had anything to do with building anything.
The second job for the same property manager, priced with real general conditions, an after-hours premium and a strict change order rule, returned 18.1% — and required no bidding at all, because the relationship already existed.
Working in an occupied building
The operational difference residential builders underestimate most is that somebody else's business is running while you work, and the rules that come with it are not negotiable after the fact.
Access is restricted and it costs money. Loading dock windows, freight elevator reservations, badge access, escorts, and hours when noisy work is prohibited. A demolition that would take one day in an empty house takes three nights in an occupied office, and the premium belongs in the bid rather than in your margin.
Protection is a scope item, not a courtesy. Corridor protection, floor and elevator protection, dust partitions with negative air where required, and daily cleanup to a standard the building manager will inspect. Damage to a common area is charged back immediately and without discussion.
Life safety cannot be interrupted casually. Sprinkler, fire alarm and egress work is coordinated with the building and frequently requires a fire watch, permits and advance notice. Tripping an alarm at 2pm in a leased tower is a memorable and expensive way to introduce yourself.
The building manager is a second client. They did not hire you, they can stop you, and their opinion determines whether you are invited back. Introduce yourself on day one, learn their rules before you need them, and give them a schedule.
Cash flow is the real barrier
The most common reason a capable residential builder fails at commercial work is not competence. It is that commercial work is financed by the contractor for far longer.
Add it up on a $318,000 job: monthly billing in arrears, 30 to 45 day payment terms, 10% retainage released 60 to 90 days after completion. Peak exposure can reach $70,000 to $110,000 on a single project, against payroll that runs weekly and suppliers who want paying in thirty days.
Three things make it survivable. A line of credit sized before you need it, arranged when you are profitable rather than when you are stretched. Payment applications submitted the day the billing period closes, complete with the schedule of values, lien waivers from every sub paid on the previous application, and photographs — because most late commercial payments are incomplete submissions rather than refusals. And a limit on concurrent commercial exposure, so one slow-paying client cannot take the company with them.
Run the arithmetic before bidding, not after winning. A job you cannot finance is a job you cannot afford to win.
How to actually get in
Commercial work is not bid into from a standing start. It is entered through relationships, in a sequence that takes months.
Start with small service work for property managers. A door repair, a suite repaint, a restroom fixture. Nobody bids these carefully and everybody needs them done reliably. Perform three of them perfectly and you are the person who gets called for the buildout.
Get your paperwork ahead of the request. Certificates of insurance at commercial limits, additional insured endorsements, W-9, license documentation, references, and a bond if your market requires one. Being the contractor who supplies all of it in an hour is a real competitive advantage.
Meet the architects and designers who work in your market. They are asked "who can build this" constantly and they answer with names they trust to make them look good.
Do one job at a loss of margin rather than a loss of reputation. The first commercial job is a sample. Finish it on time, communicate weekly, close it out cleanly with complete documentation, and the second one arrives without a bid.
Be findable and legible. A property manager searching for a contractor is checking whether you look like a company that can carry insurance, invoice properly and hold a schedule — not whether your photography is beautiful.
Five mistakes
1. Bidding from drawings without reading the specifications. The requirements that cost money live in the spec book.
2. Omitting general conditions. Eight to fifteen percent of the job, with no equivalent line in residential estimating.
3. Performing change work on a verbal instruction. In commercial construction that is frequently work you will never be paid for.
4. Ignoring retainage and payment terms when pricing. The margin is real and it arrives months after the cost did.
5. Signing the contract without reading the indemnity and liquidated damages clauses. Both can exceed the profit on the job.
The five numbers
General conditions as a percentage of contract value, estimated against actual. The line residential builders most consistently underprice.
Peak cash exposure per commercial job, known before bidding rather than discovered in month two.
Days from payment application to payment received, and how many applications were returned incomplete.
Retainage outstanding, by job and by age. It is your margin, and it is easy to forget.
Repeat work per commercial relationship. The whole point of the exercise — if every job requires a new bid, you have not built a relationship, only completed a project.
One commercial relationship replaces a year of chasing homeowners
Getting in is a relationship process with a months-long cycle, and it starts with being findable and legible to property managers. Send us your market and project mix and we will show you where to start.
Frequently asked questions
What do residential builders most often underprice on commercial work?
General conditions, which on tenant improvement work commonly run 8% to 15% of the job and have no real equivalent in residential estimating — supervision, temporary facilities, protection, dumpsters, safety compliance, submittals and closeout documentation. After that, the schedule requirement: night work, weekend work, restricted access hours and phased occupancy all carry labor premiums and are usually stated in bid documents where they are easy to skim past. And the specifications themselves, since the requirements that cost money live in the spec book rather than on the drawings — materials, testing, warranties, submittal obligations and cleanup standards. Bidding from drawings alone is how a job gets won at a price that never included what was actually required.
What contract clauses matter most in commercial construction?
Retainage, commonly 5% to 10% withheld from every payment and released long after completion, which is your margin sitting on someone else's balance sheet. Payment terms, including pay-when-paid clauses that make your payment contingent on the general contractor being paid. Liquidated damages, a stated daily amount for finishing late, which on a buildout tied to a lease commencement date can consume the entire profit of a job that finishes only slightly late. Indemnification and insurance requirements, where limits often exceed what residential builders carry and some indemnity language is broad enough that your policy will not respond — send it to your agent before signing. And the change order procedure, which is usually strict: work performed on a verbal instruction is frequently work you will never be paid for.
How does a residential contractor break into commercial work?
Through relationships, in a sequence that takes months rather than through bidding from a standing start. Start with small service work for property managers — a door repair, a suite repaint, a restroom fixture — because nobody bids these carefully and everybody needs them done reliably; perform three perfectly and you become the person called for the buildout. Have the paperwork ready before it is requested: certificates at commercial limits, additional insured endorsements, W-9, license documentation, references and a bond if your market requires one. Meet the architects and designers who work in your market, since they are asked who can build this constantly. And treat the first job as a sample: finish on time, communicate weekly and close it out with complete documentation.