Drywall repair usually costs between $50 and $1,500. Fixing a small dent or a nail hole is a quick job...
Freelance Construction Estimating Services
ACON Engineering gives you a freelance construction estimator when you need one, on an hourly or per-project basis. You only pay when you have work for us. No salary, no software, no overhead. Get accurate takeoffs and bids from a US-based, certified team.
★★★★★ 4.9 from 312 reviews
● 9,800 plans estimated
● Reply within 4 business hours
● Built for GCs, subs, developers
Get a free, no obligation estimate
Your plans stay private. We sign NDAs on request. No sales spam, ever.
Trusted by 400 plus contractors and developers across the United States
Why Pay a Full-Time Salary When You Only Need Estimates Sometimes?
Behind ACON Engineering is a team of certified estimators who cover every CSI trade. You can bring in a freelance electrical estimator for one bid and a freelance roofing or civil estimator for the next, all from the same team. Our senior estimators carry over 15 years of experience and work in PlanSwift, Bluebeam, and RSMeans to give you accurate numbers fast. You get detailed Excel and PDF deliverables ready to drop into your bid. This is how a small contractor wins more work and saves up to 60 percent against the cost of an in-house team.
Specialized Freelance Estimating Support
You get the exact estimating support your bid needs, on an hourly or per-project basis. A certified estimator manages each service below. You pay only for the work you send us.
Freelance Construction Takeoff Services
We measure material quantities straight from your blueprints in Bluebeam and other industry tools. You get accurate on-demand takeoffs from the CSI division. There is no overhead and no full-time hire, so you bid faster on every project.
Freelance Bid Management Services
We run the full bid cycle for corporate and government contracts. Our team drafts proposals, tracks deadlines, and supports your tender planning, pricing, and strategy. You move from initiation to final submission with stronger bids.
Freelance Cost Estimating Services
We build full project cost estimates that cover material, labor, and contingency. Our senior estimators work from your blueprints and apply zip code-based pricing. Your budget reflects real local costs on a project-by-project basis.
Freelance Residential Estimating Services
We estimate single-family, multi-family, and apartment projects. This covers custom builds, kitchen remodels, and insurance repairs. You get zip code-based pricing and specialized software access, so your residential bids are ready to submit.
Freelance Commercial Estimating Services
We prepare cost analysis, material takeoffs, and bid preparation on an hourly basis. You scale your estimating capacity and meet tight deadlines. We cover MEP, concrete, sitework, drywall, and masonry, delivered in 24 to 72 hours.
Freelance Industrial Estimating Services
We estimate complex projects like manufacturing plants and large-scale builds. Our takeoffs cover structural steel, piping, equipment, MEP, and raw materials. You choose preliminary, detailed, or bid estimates based on what the project needs.
What We Deliver With Your Freelance Estimate
We deliver material and labor quantities by the CSI division, with zip code-based pricing and a clear cost breakdown. Every file comes in editable Excel and PDF, with inclusions and exclusions listed so you know what is covered.
Want the full PDF in your inbox?
Get 3 redacted full sample sets covering takeoff, estimate, and schedule. No call required.
Our 4-Step Freelance Estimating Process
We follow a simple workflow so you can hand off the numbers and focus on the bid. You work directly with a certified estimator on every project.
01
Send Your Plans
You upload your blueprints and tell us the scope. We review the project and send you a quote with the cost and turnaround time details for your review.
02
Approve and Start
You approve the quote and pay the invoice. Your estimator begins the takeoff right away, on an hourly or per-project basis.
03
Takeoff and Pricing
We measure your plans and price each line with zip code-based rates. Your estimate covers material, labor, and contingency.
04
Get Your Estimate
A senior estimator reviews the numbers, then we deliver your estimate in Excel and PDF within 24 to 72 hours.
The Software We Use for Freelance Estimates
Our certified estimators work in PlanSwift and Bluebeam to measure your plans and price the quantities with RSMeans. These are the standard tools for construction takeoffs, and they keep your numbers accurate and fast to deliver.
Why Contractors Choose ACON for Freelance Construction Estimating
You get a certified estimating team on demand, with over 15 years of experience. You pay only for the work you send us, and the numbers are built to win bids.
Specialized Freelance Estimators
You get a freelance electrical, MEP, HVAC, plumbing, drywall or landscape estimator for your trade. Each one works only in their field, so your takeoff reflects how that scope is actually built and the way it gets priced on a real job.
US-Based, Certified Team
Our estimators are based in the US and hold AACE and ACE certifications. They know your local codes, permits and material costs, so your bid is built on real conditions and your numbers hold up when a client reviews them.
Pay Only When You Need Us
You pay by the hour or by the project, and nothing when there is no work. There is no salary, no software cost, and no overhead to carry, so your estimated spend rises and falls with the bids you actually take on.
15 Years in the Industry
ACON Engineering has spent over 15 years in construction estimating across every kind of project. That history means we know the trades, the costs and the line items that get missed, so your bid is complete before it goes out.
Free Revisions
Plans change once a project gets moving, so we revise your estimate when the scope or drawings shift. You keep accurate numbers through every round of changes, without a second invoice and without holding up your bid.
Up to 60% Cost Savings
You reach a full estimating team for far less than an in-house hire. Our pay-per-project model removes the salaries, benefits, and software fees, so the money you save stays in the margin on every bid you win.
Calculate Your Construction Estimate Cost in 30 Seconds
Use our quick tool to get an estimated price for your freelance estimating services. This gives you a fast baseline before you request an official quote from our team.
Step 1 · Choose Your Project Type
Pick the project you want to bid on. We cover residential, commercial, industrial and civil projects.
Step 2 · Set Your Project Size
Enter your total square footage or drawing sheet count. This helps us measure the scale of your project.
Step 3 · Select Your Required Trades
Pick the trades you need us to quantify. We cover concrete, masonry, sitework, HVAC, electrical, drywall, framing, metals, rebar, roofing, and carpentry.
Estimated fee
$1,250
Turnaround · 3 business days
Final fee depends on plan complexity. No charge until you approve.
Freelance Estimating Services Pricing
Our rates match how you actually work. You pay a flat fee per project or set up ongoing support, with no hidden costs. Pay for a single takeoff, or keep an estimator on call for your whole pipeline.
Single Project
For contractors who need one estimate for a specific bid or job site.
From $750
- One complete project takeoff
- 3 business day turnaround
- One round of revisions
- PDF and Excel deliverables
Bid partner
For firms that bid on several projects a month and need steady support.
$2,495 / mo
- Up to 6 projects per month
- 24 hour rush option included
- Two rounds of revisions
- Dedicated project lead
- Procore and Dropbox sync
Enterprise
For large teams that bid heavy volume and need a dedicated estimator.
Custom
- Unlimited projects
- SLA backed turnaround
- Custom format and templates
- Quarterly business reviews
Zero risk start. Not happy with your first deliverable? You pay nothing, full stop.
Trusted by Contractors and Developers Nationwide
Builders, developers, and subs across the United States.
ACON Engineering is great to work with. The team is hardworking, professional, and takes pride in their work. They respond quickly, communicate clearly, and keep every project moving smoothly from start to finish.
Acon Engineering is a trustworthy and professional firm. They consistently deliver on time and are excellent to work with throughout the process. Their estimates are clear, organized, and supported by detailed documentation.
It was a pleasure working with them. The team was professional, responsive, and easy to communicate with throughout the project. Their service was reliable, efficient, and delivered exactly what was promised.
Frequently Asked Questions (FAQs)
We work with general contractors, subcontractors, home builders, and developers. We also serve homeowners, property developers, architects, project managers, and estimating consultants who need accurate numbers without hiring full-time staff.
We estimate commercial, residential, industrial, civil, and institutional projects. We also cover educational buildings, parks, mining work, and remodeling and renovation jobs, so you get a freelance estimator who knows your sector.
A freelance estimator works hourly or per project. An outsourced team handles your ongoing estimating. A dedicated estimator works only on your projects. We offer all three.
Both. You can pay by the hour for smaller work or by the project for a full takeoff. You choose what fits the job.
Yes. Our estimators are based in the US and hold industry certifications, so they understand local codes and costs.
We manage every CSI trade, including concrete, drywall, roofing, plumbing, HVAC, electrical, sitework, metals, and rebar. You work with a specialist who understands the specific trade you're bidding on.
We revise your estimate when your plans or scope change. Revisions are included, so your numbers stay accurate without extra cost.
Get a Freelance Estimator on Your Next Bid
Send us your plans and tell us the scope. A certified estimator prepares your takeoff and cost numbers, and you pay only for the work. You get a bid-ready estimate in 24 to 72 hours.
Insights
Field tested guides for builders who bid.
Long form playbooks our clients use to sharpen pricing, win more jobs, and protect margin.
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