CSI Division 23 · HVAC / Mechanical

HVAC Estimating Services From Duct to Diffuser

Western Estimating quantifies complete mechanical scopes — ductwork by gauge and size, equipment schedules, hydronic and refrigerant piping, insulation and controls — delivering bid-ready HVAC estimates in 24 to 48 hours for projects across the USA and Canada.

Why Outsource HVAC Estimating

Sheet Metal Math Is Where HVAC Bids Break

Duct takeoffs are the most labor-intensive quantification in construction: rectangular and round duct by size and gauge, fittings each counted, liner and wrap by square foot, hangers by rule of thumb that better be right. Add equipment, piping, and controls, and pricing one commercial job can consume a week.

We handle it end to end. Ductwork is measured run by run, equipment verified against schedules, piping counted by size and service, everything organized per CSI Division 23 and priced with RSMeans plus local labor. You get a workbook ready for your bid — and for your sheet metal shop.

What We Quantify

Full Mechanical Scope, Quantified

Ductwork & Air Distribution

Supply, return and exhaust duct measured by size and gauge; fittings, dampers, flex, liner and wrap counted; grilles, registers and diffusers scheduled against the plans — the complete sheet metal package, ready for shop pricing.

Rectangular & Round DuctFittings by TypeVolume & Fire DampersDuct Liner & WrapFlex DuctGrilles / Registers / DiffusersHangers & SupportsLouvers

Equipment & Refrigeration

Every unit on the mechanical schedule verified and priced: RTUs, AHUs, splits and VRF, exhaust fans, boilers, chillers and pumps — with rigging, curbs, vibration isolation and startup accounted for so nothing surprises you on site.

Rooftop UnitsAir HandlersSplit / VRF SystemsExhaust FansBoilers & ChillersHeat PumpsPumpsCurbs & Isolation

Piping, Insulation & Controls

Hydronic, refrigerant, condensate and gas piping by size and material; pipe and duct insulation by square foot; thermostats and control devices counted with wiring allowances — completing the Division 23 scope in one workbook.

Hydronic PipingRefrigerant LinesCondensatePipe InsulationThermostats & SensorsControls & BAS DevicesSmoke DetectorsValves & Specialties

What Your HVAC Estimate Includes

  • Excel + PDF workbook organized division by division per CSI MasterFormat
  • Drawing references — every quantity traced to the sheet it was measured from
  • Material and labor pricing verified against RSMeans and local market rates
  • Markup & bid guidance so your final number is competitive and profitable
  • Free revisions and addendums — plan changes handled at no extra cost

How It Works — 3 Steps

  • Submit your plans. Upload PDFs through our quote form or email them to Info@westernestimating.com with your scope of work.
  • Approve the quote. You receive a fixed written price and delivery date the same business day. Pay by card or PayPal to start.
  • Receive your estimate. A complete HVAC breakdown in 24–48 hours, in our template or yours.
Start Your HVAC Estimate
HVAC Estimating FAQs

Common Questions About HVAC Estimates

What does an HVAC estimate include? +
Complete Division 23 quantities: ductwork by size and gauge with all fittings, equipment per schedule, hydronic and refrigerant piping, insulation, and controls — in Excel and PDF with drawing references, priced for material and labor.
How much does an HVAC estimate cost? +
Residential HVAC estimates start around $100; commercial mechanical estimates scale with project size up to $5,000 for large multi-story buildings. Every project receives a fixed written quote before work begins.
How long does the estimate take? +
Most estimates are delivered within 24 to 48 hours. Larger or more complex projects may take up to 5 working days, and urgent requests are accommodated at no extra charge.
Do you price the sheet metal separately? +
Yes — ductwork is broken out by size, gauge and fitting type, so your fabrication shop or supplier can price the sheet metal package directly from our workbook.
What do I need to send for a quote? +
Send your project plans or drawings in PDF format together with the scope of work through our quote form or to Info@westernestimating.com. We reply with a free fixed quote including price and turnaround time; work begins once you approve.

Get Your HVAC Estimate in 24–48 Hours

Upload your mechanical drawings today for a free fixed-price quote the same business day — anywhere in the USA and Canada.

Upload Your Plans Now
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