Short answer: A full-time construction estimator costs most general contractors about $100,000–$130,000 a year once salary, payroll taxes, benefits, and software are included, and one estimator can produce roughly 4–10 solid commercial bids a month. If you bid fewer than 5–8 jobs a month, or your jobs are spread across markets you don't know well, AI estimating software plus a part-time or outsourced reviewer usually costs a fraction of that and turns bids around faster. Hire when you have steady volume, a consistent building type, and need someone who owns relationships with subs and suppliers.
"Should we just hire an estimator?" is one of the most common questions we hear from GCs doing $1M–$20M jobs. It usually comes up right after a bad bid: numbers that were all over the place, a missed scope, or a job you had to pass on because nobody had time to take it off.
It's a real decision with real money attached, so here's the math.
What a full-time estimator actually costs
According to the U.S. Bureau of Labor Statistics, cost estimators earned a median of $37.86 an hour ($78,740 a year) as of May 2025. Experienced commercial estimators in major metros often earn well above that.
Salary is only part of it. For a small GC, a realistic fully loaded number looks like this:
| Cost | Typical range |
|---|---|
| Base salary | $75,000–$100,000 |
| Payroll taxes, insurance, benefits (25–35%) | $19,000–$35,000 |
| Estimating and takeoff software seats | $2,000–$8,000 |
| Total per year | ~$100,000–$130,000 |
Then add the hidden costs: two to four months to find and hire someone good, ramp-up time on your pricing, and the risk that they leave and take your process with them. Good estimators are also scarce: in the AGC's 2026 workforce survey, 72% of firms with estimating openings reported difficulty filling them.
What one estimator can produce
Output depends heavily on job type. A rough, commonly cited range for a commercial estimator is 4–10 complete bids a month — fewer for complex or renovation work, more for repetitive building types. So at $115,000 a year and 6 bids a month, you're paying about $1,600 per bid in estimator cost alone, whether you win it or not.
That's the number to compare against.
Outsourced estimating: cost and turnaround
Freelance and outsourced estimating firms quote per project or per trade. Prices range widely — from a few hundred dollars for a single-trade takeoff to several thousand for a full commercial estimate — with turnaround of a few days to two weeks.
Good for: occasional bids, specialty trades, overflow.
Watch out for: they don't know your costs, your subs, or your market. You still need someone in-house to review scope and set markup.
AI estimating software: what it does well and where it falls short
AI estimating tools read the plan set, measure quantities, and build a priced estimate. The better ones show where every quantity came from so you can check it.
Good for:
- First-pass takeoff on every bid, fast — hours to a couple of days instead of a week.
- A trade-by-trade benchmark to check sub bids against. (See why subcontractor bids vary so much.)
- Bidding more jobs without adding headcount.
- Pricing jobs in markets where you don't have historical costs.
Not good for: replacing judgment. AI can miss scope that isn't drawn, misread unusual details, and can't negotiate with subs. Plan on an experienced person reviewing every estimate.
We compared the main tools in best AI estimating software for general contractors.
Should you hire an estimator? How to decide
| Your situation | Best fit |
|---|---|
| 10+ bids a month, one building type, one market | Hire an estimator (and give them AI tools) |
| 3–8 bids a month, uneven volume | AI software + owner/PM review, outsource overflow |
| Many markets or unfamiliar building types | AI software + sub network for local pricing |
| 1–2 bids a month | Outsource or AI software; don't hire yet |
| Renovation / historic work with lots of unknowns | Experienced reviewer is essential, whatever does the takeoff |
A practical test: add up the bids you passed on last quarter because nobody had time. If that number is large, your constraint is capacity, and software is the cheapest way to add it. If you're bidding everything but losing on accuracy, your constraint is judgment, and that's a hire.
The hybrid most lean GCs land on
The pattern we see most often at GCs doing $1M–$20M jobs:
- AI does the first pass: takeoff, quantities, and a priced estimate for each trade.
- Subs price the real market: bid packages go out to local subs and come back leveled against each other.
- An experienced person reviews: an owner, PM, or part-time estimator checks scope, risk, and markup.
That setup often replaces the need for a full-time hire until volume is steady enough to justify one — and makes that hire far more productive when you make it.
What to look for if you hire
If the numbers point to a hire, screen for the things that make an estimator productive on day one:
- Your building type. An estimator who has priced 40 medical office buildings will be faster on yours than a generalist with more years.
- Local sub relationships. Half of a good number is knowing which subs are busy, which ones leave scope out, and who actually shows up.
- Comfort with digital takeoff and AI tools. You want someone who uses software to bid more jobs, not someone who will measure every sheet by hand out of habit.
- A process you keep. Ask them to build the cost database and checklists inside your systems, so the knowledge stays if they leave.
A useful test: hand candidates a job you already bid and lost, and compare their number and their scope notes against yours.
What to look for in AI estimating software
Contractors see estimating as where AI will matter most. In the same AGC survey, 67% of firms named estimating and bidding as the area where AI will have the biggest impact inside their company, ahead of document review (66%), scheduling (62%), and project management (49%). Tools vary a lot, so check for:
- Traceable quantities. Every number should link back to where it was measured on the sheet. If you can't check it, you can't sign it.
- Trade coverage that matches your work. A tool that only does flooring and drywall won't help on a sitework-heavy job.
- Sub bids built from the takeoff. The estimate is most useful when the same quantities go out in bid packages and come back leveled against it.
- Pricing that follows your volume. Usage-based pricing fits uneven bid volume better than per-seat licenses you pay for in slow months.
- A review step. The software should make it easy for your PM or owner to approve, adjust, and flag scope before anything goes out.
How Struvia fits
Struvia does steps 1 and 2 in one place: AI takeoff and estimating from your plan set, then trade bid packages sent to matched local subcontractors, with follow-up by email, text, and phone until they respond, and the bids leveled against the estimate. That matters most when you're bidding somewhere you don't know the subs yet (here's how to find subcontractors in a new market). You review and decide. You can start free: sign up with no card and you get starter credits to run a real plan set. After that you pay for what you use, with no subscription or seats, so it scales with your bid volume instead of adding payroll. Upload a plan set free and see the first-pass estimate yourself, or book a 20-minute demo to walk through it with your own plans.
Frequently Asked Questions
How much does it cost to hire a construction estimator?
Expect roughly $100,000–$130,000 a year fully loaded for a small GC, based on BLS wage data plus payroll taxes, benefits, and software. Senior estimators in large metros cost more.
Can AI replace a construction estimator?
Not fully. AI handles quantity takeoff and first-pass pricing well and fast, but a person still needs to review scope gaps, risk, and markup and manage sub relationships.
How many bids can one estimator do a month?
A common range is 4–10 complete commercial bids a month, depending on project size and complexity.
When should a small GC hire its first estimator?
When bid volume is steady enough that one person would be fully used, typically 8–10+ bids a month, and when the owner's time on estimating is holding back sales or operations.
Is there free AI estimating software for contractors?
Some tools let you start free. Struvia gives new accounts starter credits with no card required, so you can run a real plan set before paying anything, then bills on usage with no subscription. Our roundup of free AI construction estimating tools covers the other options and their limits.
*Reviewed by Baylor Jeppsen, Construction Estimating Expert and Founder of Struvia.*
