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We are seeking an experienced mechanical estimator to perform a complete, drawing-based quantity takeoff and cost estimate for piping and associated supports for a Wastewater Treatment Plant project. The estimator must independently review the complete project drawings, specifications, schedules, details, addenda, and available bid documents. Must be able to work with minimal supervision & direction. SCOPE OF WORK Provide a complete takeoff and estimate for all applicable process and mechanical piping, including: Aboveground and belowground piping Carbon steel piping Stainless steel piping Ductile iron piping PVC and C900 piping Welded, screwed, flanged, grooved, and restrained piping systems Pipe fittings, flanges, couplings, gaskets, bolts, reducers, and transitions Valves and specialty piping components Equipment connections and piping tie-ins Pipe sleeves, wall penetrations, and mechanical seals Pipe supports, shoes, guides, anchors, trunnions, hangers, brackets, and support frames Miscellaneous structural steel required for piping supports Demolition, modifications, and connections to existing piping where shown Testing, flushing, disinfection, and startup assistance where required by the specifications REQUIRED DELIVERABLES The successful freelancer must provide an organized Microsoft Excel estimate containing: Piping quantities summarized by project area Pipe footage separated by size, material, service, and installation condition Identification of aboveground and belowground piping Fitting and valve counts by size and type Support quantities by type and associated piping area Drawing number and PDF page reference for each takeoff item Material pricing with unit costs and extended totals Labor hours by fabrication and installation activity Labor cost using an adjustable hourly rate Equipment and rental costs Subcontractor and specialty-vendor allowances Waste, consumables, freight, and testing allowances Separate subtotal for each project area or piping system Estimate summary showing material, labor, equipment, subcontractor, overhead, profit, contingency, and total bid value List of assumptions, exclusions, clarifications, and potential RFIs Marked-up drawings showing where quantities were taken. In provided documents, it will also be estimator responsibility to identify any & all contractor provided items & list those as well with pricing. Examples would be office trailers, temp. restrooms etc. . Attached are examples of drawings estimator will receive I am looking for a ready to submit proposal. We have several projects needing estimators
Project ID: 40584816
21 proposals
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Active 6 days ago
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21 freelancers are bidding on average $41,299 USD for this job

Hello, I’m a Mechanical Engineer with experience in piping systems, quantity takeoffs, BOQs, and cost estimation for industrial and infrastructure projects. I can independently review the complete drawing package, specifications, and bid documents to prepare a detailed, traceable estimate for all mechanical and process piping systems. My deliverables include an organized Excel estimate with piping quantities categorized by material, size, service, and installation type, complete fitting and valve counts, support quantities, labor hours, material pricing, equipment allowances, marked-up drawings, RFIs, assumptions, and project-area summaries. I focus on producing estimates that are easy to audit, update, and submit with confidence. I am comfortable working with minimal supervision and can provide clear progress updates throughout the estimating process. I would be pleased to review the sample drawings and discuss your workflow for future wastewater treatment projects.
$50,000 USD in 7 days
6.7
6.7

With Modular Solutions, your project is not just in competent hands that can deliver on the mechanical estimation for your Wastewater Treatment Plant; it is also in a professional partner that will offer vital suggestions to enhance the project. With over 10 years of experience providing exceptional engineering services and our proficiency in AutoCAD, Civil 3D, CAD/CAM, and SolidWorks, we are poised to deliver a thorough design review that will identify any contradicting information right at the bid stage, allowing necessary RFIs early enough. Our extensive skillset with various materials including carbon steel piping, stainless steel piping, ductile iron piping, PVC and C900 piping are complemented by our thorough understanding of welded, screwed, flanged, grooved and restrained pipelines as well as pipe fittings and other components like valves. To ensure an organized Microsoft Excel estimate as you require, we have in-depth knowledge of how to present quantities accurately distinguished by size, material, service, and installation condition to ease project management. Our commitment to attention to detail will also be evident in our accurate identification of subcontractors & all contractor provided items so that no cost estimate falls through the cracks. Choose us for this project and you're deciding to benefit from the comprehensive expertise of a one-stop-shop engineering consultant with a track record tailoring scalable solutions for clients globally.
$50,000 USD in 7 days
6.1
6.1

With over 6 years of experience as a skilled and self-reliant estimator, I am proficient in analyzing project drawings and specifications, precisely identifying your needs, and delivering quality results. My dedication, proven by a consistent 100% job completion rate and stellar client satisfaction of 5★, speaks to my commitment to providing high standards work. This wastewater plant project aligns perfectly with my experience in mechanical piping systems, including prevailing materials such as stainless steel, ductile iron, PVC and C900. Furthermore, my expertise extends beyond the provision of a simple takeoff and estimate. I excel at adding value to projects by incorporating other areas that are generally overlooked like testing, flushing, disinfection and startup assistance. In this regard, I can provide not only a comprehensive Microsoft Excel estimate but also offer RFIs that clarify project details where needed. Choosing me for this critical role will enable you to leverage on the proficiency I've acquired over the years. My vast knowledge of identifying all contractor provided items and list them clearly with pricing, will also prove invaluable for you in terms of optimizing cost. Let's bring your vision to life with ZL
$2,000 USD in 5 days
5.6
5.6

Hello sir, I am a Mechanical Engineer with over 2 years of experience in piping design, quantity takeoffs, cost estimation, and shop drawings, having completed more than 200 residential, commercial, industrial, and water infrastructure projects. I have extensive experience interpreting construction drawings, P&IDs, isometrics, specifications, and producing accurate material takeoffs. For your wastewater treatment plant project, I can independently review the complete drawing package, specifications, addenda, and bid documents to prepare a comprehensive, drawing-based mechanical estimate with minimal supervision. My deliverables will include: Detailed piping takeoffs by size, material, service, and installation type Aboveground and belowground piping quantities Fittings, valves, flanges, supports, sleeves, and specialty component counts Material pricing, labor hours, equipment, subcontractor, freight, testing, and contingency allowances Area-by-area cost summaries and a complete bid summary Marked-up PDF drawings identifying quantity takeoff locations Assumptions, exclusions, RFIs, and identification of contractor-provided items (trailers, temporary facilities, etc.) I am highly proficient in AutoCAD, AutoCAD Plant 3D, Excel, and construction quantity takeoff workflows, with strong attention to detail and commitment to delivering organized, accurate, bid-ready estimates. I am looking for a long-term collaboration.
$60,000 USD in 30 days
5.8
5.8

I understand you need a precise and comprehensive mechanical piping and support takeoff and estimate for your Wastewater Treatment Plant project. My experience performing detailed quantity takeoffs for complex industrial facilities, similar to the process piping scope outlined, ensures accurate material and labor quantification. My approach will involve a thorough review of all provided project documents, utilizing industry-standard takeoff software like Bluebeam Revu for precise digital markups and quantity extraction. I will meticulously identify and quantify all specified piping materials (carbon steel, stainless steel, etc.), fittings, valves, and insulation. Support takeoffs will be performed concurrently, accounting for type, material, and spacing based on your drawings and specifications. A detailed cost estimate will then be generated using a robust cost database, factoring in labor rates, material costs, and appropriate overhead/profit margins. To ensure alignment with your specific needs, could you clarify if there are any particular cost escalation factors to consider for this project? Additionally, what is your preferred format for the final estimate report? I'm available to discuss your project in more detail at your convenience.
$85,419 USD in 21 days
3.2
3.2

Hi, Your project requires far more than a simple quantity takeoff—it needs a disciplined estimator who can interpret drawings accurately and produce a bid-ready estimate with minimal supervision. I can deliver a well-organized Excel estimate covering complete piping quantities by size, material, service, and area, valves, fittings, supports, structural steel, labor hours, equipment, subcontractor allowances, testing, overhead, contingencies, RFIs, assumptions, exclusions, and marked-up drawings with page references. I also identify contractor-provided items often overlooked during estimating. ✔ Complete drawing & specification review ✔ Clear, audit-ready Excel estimate ✔ Accurate takeoffs with traceable markups ✔ Fast communication and dependable delivery If you're looking for a long-term estimating partner for multiple WWTP projects, I'd be happy to discuss your workflow. Best regards, Gourav
$100,000 USD in 25 days
2.7
2.7

I understand you need a detailed, drawing-based quantity takeoff and cost estimate for all process and mechanical piping, including aboveground, belowground, carbon steel, and stainless steel piping, for your Wastewater Treatment Plant project. I recently completed a similar comprehensive takeoff and estimate for a municipal water treatment facility, delivering an accurate cost breakdown that supported their bid submission and resulted in a successful contract award. My process involves a thorough review of all provided project drawings, specifications, and addenda. I will meticulously measure and quantify all piping runs, fittings, valves, and their respective supports. The final deliverable will be a detailed Excel spreadsheet, clearly itemized by piping material, size, and system, along with associated labor and material costs derived from industry-standard estimating databases. Given the project's complexity, what is the expected level of detail required for the piping support takeoff, specifically regarding different bracket types and attachment methods for aboveground runs? Ready to start as soon as you confirm scope.
$83,337 USD in 21 days
2.3
2.3

Dallas, United States
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Member since Sep 12, 2025
$750-1500 CAD
$1500-3000 USD
$30-250 SGD
$8-15 USD / hour
$250-750 USD
£10-20 GBP
$30-250 USD
₹1500-12500 INR
$30-250 USD
₹600-1500 INR
$1500-3000 USD
min $50 AUD / hour
$10-30 USD
₹1500-12500 INR
$10-30 USD
$15-25 AUD / hour
$250-750 AUD
min $100000 USD
$250-750 USD
$250-750 USD