THE ESTIMATING ANSWER
For two existing radiator positions, start with a defined scope and measurement basis. Measure radiator size, heat-output basis, bracket position and valve connection at each location. Keep radiator products, valves and connection fittings separate. Price the listed tasks separately and state the condition that would require a revision: Corroded nearby piping or unsuitable output selection changes scope.
This guide uses a fictional project in Dartmouth, Nova Scotia: Two existing radiator positions. Its matching estimate and PDF give each scope decision a visible CAD cost line. Use the document to understand the structure; verify the actual building, product schedule, labour and supplier inputs before preparing a client quote.
1. Define the measured job
Replace two selected hydronic radiators at existing accessible positions, reconnecting suitable piping and testing the system. Measure radiator size, heat-output basis, bracket position and valve connection at each location. Record the measurements and existing condition in the estimate before turning quantities into line items. The scope should make clear why this is a separate project from a broader renovation or maintenance quote.
Measurement basis: Measure radiator size, heat-output basis, bracket position and valve connection at each location.
2. Build a product and labour schedule
Keep radiator products, valves and connection fittings separate. This example has 7 distinct lines, including system and position survey, drain-down and protection, radiator allowance. Use actual supplier prices and labour inputs for a customer job; the displayed amounts are fictional document inputs.
Selections to confirm: Keep radiator products, valves and connection fittings separate.
3. Sequence the work and handoffs
Confirm isolation, drain-down and refill plan before removing old units. Show which task depends on access, a selected product or another trade. If that dependency is still open, label the price preliminary and identify the information needed before a firm quote.
Work sequence: Confirm isolation, drain-down and refill plan before removing old units.
4. Set a change boundary
Corroded nearby piping or unsuitable output selection changes scope. The example excludes boiler replacement, new pipe routes or whole-system balancing. Record the discovery, agree the revised work and update the estimate before adding it to the job.
If the job changes: Corroded nearby piping or unsuitable output selection changes scope.
Review the Canadian job address
Inspect the existing substrate, access and product selections at the property. Check any local trade or municipal requirements that apply and record unresolved conditions before preparing the final client document.
Count the actual units, site visits and selected products separately. A count in this example is a document input, not a substitute for inspecting the real property. The example amounts are fictional CAD document inputs, not current rates for Dartmouth, Nova Scotia or another community. A site visit and current supplier information are needed to replace them.
Work through the itemized calculation
Check each extension of quantity and rate in the paired PDF. Two lines from this project are:
- Radiator allowance: 2 each × C$505.00 = C$1,010.00.
- Valve and fitting allowance: 2 sets × C$200.00 = C$400.00.
Adding all 7 rounded line amounts gives C$3,360.00. The PDF shows 0% tax and the same total before any markup. The sample shows 0% tax only to make the arithmetic visible. Determine any applicable GST, HST or PST and markup for the actual work before sharing a quote.
| Work item | Quantity | Unit rate | Amount |
|---|---|---|---|
| System and position survey | 1 job | C$235.00 | C$235.00 |
| Drain-down and protection | 1 job | C$300.00 | C$300.00 |
| Radiator allowance | 2 each | C$505.00 | C$1,010.00 |
| Valve and fitting allowance | 2 sets | C$200.00 | C$400.00 |
| Radiator fitting labour | 2 each | C$470.00 | C$940.00 |
| Refill and leak check | 1 job | C$295.00 | C$295.00 |
| Old unit disposal | 1 job | C$180.00 | C$180.00 |
| Illustrative subtotal | C$3,360.00 | ||
Scope and pricing boundaries
Replace two selected hydronic radiators at existing accessible positions, reconnecting suitable piping and testing the system.
Outside this example: No boiler replacement, new pipe routes or whole-system balancing.
Keep the product allowance, installation work and any unresolved condition visible as separate decisions. If access or the selected product changes, update the affected quantity or rate and explain the revision before the client relies on the estimate.
Before you send the estimate
- Measure radiator size, heat-output basis, bracket position and valve connection at each location.
- Keep radiator products, valves and connection fittings separate.
- Confirm isolation, drain-down and refill plan before removing old units.
- Corroded nearby piping or unsuitable output selection changes scope.
Check the business, client, property, dates, line extensions and notes. The hydronic radiator replacement PDF example shows one way to present them. Its short PDF note lists the brief's scope exclusions; the fuller project limits above should guide your own scope.
Questions about this estimate
Which quantity controls this hydronic radiator replacement estimate?
Measure radiator size, heat-output basis, bracket position and valve connection at each location.
When should this hydronic radiator replacement quote be revised?
Corroded nearby piping or unsuitable output selection changes scope. No boiler replacement, new pipe routes or whole-system balancing.

MAKE THE NEXT ESTIMATE YOUR OWN
Build a hydronic radiator replacement estimate.
Enter the job scope in Estimates on iPhone or Android or start from an AI-assisted draft. Check every quantity, rate, allowance, client detail and note before exporting the PDF. Some app features may require an in-app purchase.