Underground sanitary sewer, storm drainage, and water service piping must be installed and inspected before slabs are poured, meaning errors discovered after concrete placement require saw-cutting, excavation, and re-pour that costs multiples of what the original correction would have. We estimate the underground plumbing scope from your civil and plumbing drawings before a single trench is opened on your project.
Plumbing Estimating Services Covering Every Phase and System
Plumbing accounts for ten to fifteen percent of your total construction budget, and most plumbing estimates are built on fixture counts and pipe footage alone. Underground rough-in, top-out, trim-out, and specialty systems each carry distinct costs that phase-blind estimates consistently miss. With our plumbing estimating services, you can get numbers that your plumbing contractor can actually execute and procure from.
Why Plumbing Bids Go Wrong
The Three Phases of Plumbing Work That Most Estimates Ignore
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What's Included in Our Plumbing Estimating Services
Built on Trusted Platforms
Tools We Use for Plumbing Estimating
- FastPIPE
- PlanSwift
- Bluebeam Revu
- RSMeans
- Autodesk Revit MEP
- On-Screen Takeoff (OST)
- Trimble AutoBid Mechanical
- STACK Estimating
- Microsoft Excel
- ConEst
Every Plumbing Project Covered
Who We Estimate Plumbing For
Plumbing bids don't forgive missing phases. We deliver phase-accurate cost data so contractors and owners can bid confidently, before a single pipe is roughed in.
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Work Process
How to Get Started
Send us your plans. Get back phase-accurate plumbing estimates built for real-world bidding and procurement.
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01
Submit Plans
Upload your drawings and project documents.
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02
Review Scope
We analyze every detail of your project scope using industry-standard tools, ensuring nothing is missed
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03
Cost Estimate
We build a precise, itemized estimate covering all materials, labor, and trade-specific costs.
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04
Bid-Ready Delivery
Your completed estimate lands in your inbox.
What Our Customers Say
Nathan Richardson
We used Federal Estimating for plumbing estimating on a large commercial office project, and the accuracy of their work was outstanding. The estimate included detailed quantities for piping, fixtures, valves, drainage systems, and related accessories. Their comprehensive takeoff allowed us to bid confidently and avoid costly scope omissions. The entire process was smooth, professional, and completed ahead of schedule.
Kimberly Sanders
Federal Estimating prepared a plumbing estimate for our multi-family apartment development, and we were extremely satisfied with the results. The report was well organized, easy to review, and closely aligned with our internal calculations. Their attention to detail and quick turnaround saved our estimating team many hours of work and improved the accuracy of our bid.
Scott Harrison
Our plumbing contracting company hired Federal Estimating for a hospital renovation project with a demanding timeline. The estimate covered domestic water, sanitary, vent, and storm systems in exceptional detail. Their expertise and responsiveness made the bidding process far more efficient, and the final numbers proved highly reliable. We highly recommend their plumbing estimating services.
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Frequently Asked Questions
Plumbing estimating fees are based on project size, system complexity, number of plumbing phases being estimated, and required turnaround. Residential plumbing estimates for single-family homes typically start at $150 to $350. Commercial plumbing packages covering underground, rough-in, and trim-out across mid-sized buildings range from $500 to $1,800. Healthcare, industrial, and specialty plumbing system estimates are quoted individually after reviewing your plumbing drawing set.
A complete plumbing estimate covers every phase and system in the plumbing scope, including underground sanitary and water service piping, rough-in supply and DWV piping by diameter and material, fixture counts by specification and ADA requirement, water heater and recirculation system equipment, backflow prevention devices, pressure reducing valves, cleanout counts and access panel locations, hanger and support quantities, specialty system scope, and all associated plumbing labor organized by installation phase. Every system is presented as a separate, itemized scope so owners, GCs, and lenders can review individual plumbing components independently.
We estimate underground, rough-in, and top-out phases separately because each phase carries different material specifications, labor productivity rates, and inspection requirements that blending into a single plumbing number conceals. Underground phase quantities are measured from the civil and foundation drawings. Rough-in quantities are measured from plumbing floor plans and riser diagrams. Trim-out quantities are counted from fixture schedules and finish plumbing drawings. Each phase is priced using labor productivity rates appropriate to that specific installation stage; underground trenching labor is completely different from above-ceiling rough-in and finish fixture setting.
Drain, waste, and vent systems and domestic water supply systems are estimated using entirely different logic, and we treat them as separate scopes within every plumbing estimate we produce. DWV systems are sized by fixture unit load, require minimum slope calculations, involve larger pipe diameters, and include vent stack routing that affects the ceiling plenum and wall cavity space. Supply systems are sized by pressure and flow demand, involve smaller pipe diameters, and carry different fitting and valve counts. Applying the same linear footage rate across both systems produces a number that misrepresents both, and our estimates never do that.
Residential plumbing estimates for straightforward single-family projects are typically delivered within one to two business days. Commercial plumbing packages covering underground, rough-in, and trim-out phases across a mid-sized building are generally completed within three to five business days. Healthcare, industrial, and specialty plumbing system estimates are scheduled individually based on drawing volume and system complexity. Rush delivery is available for projects with imminent bid deadlines. Share your submission date when you submit your drawings, and we'll confirm our turnaround commitment before the engagement begins.