The first roof section comes off. The deck is soft beyond the visible leak, and nobody agreed how extra replacement would be measured or approved. Your roofing contractor replacement quote must settle that problem before the crew starts.
Inspect what you can see. Record what remains hidden. Then price the job in the same order the crew will open and rebuild the roof.
Inspect the roof before pricing the replacement
Roof area is only the start. Edges, valleys, penetrations, drainage, height and access all change the work.
Walk the property with a site-survey sheet. Match every observation to a roof plane or building elevation. Label photographs as you take them so each image matches the scope notes.
Record the roof shape and takeoff measurements
Sketch each roof plane. Measure and record its length, width and slope. Mark the dimensions used to calculate the plane area rather than writing one unexplained roof total.
Measure eaves, rakes, ridges, hips and valleys separately. Count and locate chimneys, skylights, vents, curbs, walls and other penetrations. Record the dimensions around each detail needed to calculate membranes, flashings and accessories.
Look at where water leaves the roof. Note gutters, scuppers, drains and low points. Record any area where the replacement assembly needs a separate detail rather than a standard field installation.
Take wide photographs of each elevation and roof plane. Add close photographs of penetrations, edges and visible damage. The sketch, measurements and labelled photographs should point to the same locations.
Do not describe a complicated roof as one total area. The crew needs to know where the slower work sits.
Record access, staging and disposal conditions
Look at the route from the truck to the roof. Record height, slope, landscaping, neighbouring property, overhead obstructions and space for material staging.
Choose a delivery point. Choose a debris route. Decide where removed material can be loaded without blocking the customer or damaging the property.
Photograph the driveway, garden, entrances and neighbouring property where protection could become disputed. The survey should tell the estimator what must be protected and tell the crew what was there before work began.
If a lift, scaffold, hoist, temporary protection or special delivery is needed, put it in the cost worksheet. Do not bury site equipment in general overhead after the quote has gone out.
Separate confirmed conditions from hidden conditions
Write down what you observed. Then write down what you could not confirm without removing the existing covering.
The number of existing layers may not be clear at every edge. Deck condition may be hidden. Flashing behind siding or cladding may be inaccessible. Previous repairs may cover a larger defect.
Use plain notes such as “visible from attic,” “observed at eave” or “concealed until tear-off.” That line between known and unknown conditions drives the deck clause and change-order method later.
Choose the replacement assembly before calculating cost
You cannot price roofing labour and materials until you have chosen what the crew will remove and what it will install. Product names alone do not define a roof assembly.
Write the build-up from the deck outward. Use current supplier costs and your own installation records rather than an old total from a different roof.
Define what will be removed
State the existing covering and every component included in tear-off. That may include underlayments, flashings, vents, fasteners, damaged accessories and other materials attached to the roof.
Say what remains. A quote that says “remove existing roof” leaves the crew guessing about gutters, skylights, wall flashings, satellite equipment and other components.
If the site survey could not confirm the full removal scope, state the assumption and the approval method for a hidden difference.
Define the deck standard
Name the deck material expected to remain. Describe what the crew will inspect after tear-off and what condition requires repair or replacement.
Do not leave the standard as “replace bad wood.” State how the crew will identify an unacceptable section, how it will be measured and who records it.
The deck decision must also cover fastening. If refastening or localized correction is included, say so. If it is outside the base scope, give it an approval path.
Specify the complete new assembly
List the specified membranes, underlayments, flashings, ventilation components, roof covering, fasteners, sealants and accessories. Include edge details and penetration details.
State which existing components will be reused. Record their observed condition and any limit on your responsibility for an existing component that remains.
Build the material takeoff from this assembly. After acceptance, use a roofing material order checklist from the trade-business resources library so the purchase order follows the quoted specification.
Divide the roofing contractor replacement quote into work phases
Separate the scope into tear-off, deck work and installation. Add disposal and site access as visible cost lines where they affect the job.
Use the same tear-off, deck and installation labels in the estimate, crew record, purchase coding and job-cost report.
Tear-off
Include site protection, setup, removal, sorting, lowering, loading and disposal. Add the labour needed to move debris from the roof to the disposal point.
Record the assumed existing covering and layers. If that assumption cannot be confirmed at the survey, connect it to the hidden-condition process.
Keep disposal tied to the job. Bin charges, tipping charges, haulage and crew handling are job costs when the replacement creates them.
Deck work
Separate inspection, refastening, localized repair and replacement. State any deck work included in the base price.
For work that cannot be measured until tear-off, choose a written pricing method before the quote is accepted. Do not promise an undefined amount of replacement inside a fixed total.
Deck work needs a material description, measurement basis, labour method, disposal treatment and approval step. If one of those is missing, the crew and customer can read the same clause differently.
Installation
Break installation into preparation, membranes, field covering, edges, valleys, penetrations, flashing, ventilation and cleanup. Complex details should not disappear inside one line called “new roof.”
Match labour tasks to the specified assembly. A wall junction, chimney or skylight needs the detail written into the scope. If the quote does not describe it, the crew cannot tell whether the work is included.
Set the concealed deck method before tear-off
The condition of concealed deck often cannot be confirmed until the covering is removed. That does not mean the pricing method must also remain unknown.
Choose one method and write it into the quote.
Include a defined amount of deck work
You can include a clearly measured amount or task in the accepted scope. Describe exactly what that allowance covers and how unused or additional work will be handled.
Do not call an unlimited promise an allowance. A defined inclusion needs a boundary the customer and crew can both identify.
Use an agreed measurement-based method
State what unit or measurement will be used after exposure. Define the deck material, labour, removal and disposal covered by that method.
Build the selling amount from measured material cost, task labour cost, disposal and equipment cost, and allocated overhead. Add your roofing markup to that full cost. Use your own figures, not a borrowed deck rate.
Record the exposed measurement with labelled photographs and site notes. The customer should be able to connect the proposed extra work to a real roof area.
Exclude concealed replacement and use a change order
You can exclude deck replacement that cannot be confirmed, then price it when the roof is open. The quote must say that work stops at the affected area until the customer approves a written change order.
The crew removes the first section and finds soft deck outside the visible leak area. Apply the measurement, pricing and approval method already written into the quote.
For the full site process, use the roofing hidden-deck change-order guide.
Build the roof replacement pricing worksheet
Start with direct job cost. Add allocated overhead. Then add roofing markup to reach the selling price.
Use the overhead allocation method already established for your business. Apply it consistently across quoted and completed jobs. Keep direct roof costs such as delivery, disposal and access equipment out of overhead when the job caused those costs.
Use separate lines for labour, materials, equipment and access, delivery, disposal, subcontractors and permits where needed. Keep GST/HST separate from revenue and cost treatment in the way your accountant has directed.
Cost tear-off labour by task and site condition
Estimate the crew time for protection, setup, removal, handling, loading and cleanup. Use your own labour cost records.
Internal labour cost is not the labour amount charged to the customer. Labour cost can include the employer costs your records assign to productive job time. Your selling amount also has to contribute to overhead and profit.
Adjust the task estimate for the roof in front of you. Height, slope, restricted access and a long debris route add work even when the roof area looks familiar.
Cost installation labour from the specified assembly
Build labour around the actual sequence. Include deck preparation, membranes, field installation, edges, valleys, flashings, penetrations, ventilation and final cleanup.
Use crew records from comparable details. Do not reduce a complex roof to one blended production guess if your records can separate the slow sections.
List materials by component
Price the complete assembly rather than one visible covering total. Include membranes, flashings, ventilation, fasteners, sealants and accessories specified in the scope.
Use current supplier figures. Record delivery charges against the job when the delivery exists because of that replacement.
Keep material quantities and selling amounts separate. The takeoff tells purchasing what to order. The cost worksheet tells you what the job must recover.
Add the remaining direct costs
Add equipment, access systems, temporary protection, delivery, disposal and subcontracted work. Add permit cost where a permit is required and you are responsible for obtaining it.
If the crew finishes tear-off but the disposal or access cost was hidden in overhead, your job report will lie. Put a cost against the job when that job caused it.
Keep the same cost buckets after acceptance
Use the same job reference for crew time, purchases, equipment, disposal and subcontractor invoices. Keep tear-off, deck, installation and approved extras separate.
Consistent cost tracking lets you compare quoted work with actual work. The contractor job-costing guide explains how to build that comparison from source records.
Add roofing markup without confusing it with margin
Markup is what you add to cost to produce a selling price. Margin is profit as a share of the selling price. They are not interchangeable.
Apply markup to the full cost base chosen by your business. Do not add profit only to the roof covering while labour, disposal and equipment pass through without a contribution.
Use the same method from quote to quote. The markup and margin guide gives the formulas without turning them into a rate card.
Worked example: Oak Street house example
This is the house electrical example, not a roofing rate or Canadian pricing benchmark. All figures are sample currency units.
On the Oak Street bathroom job for R. Chen at 14 Oak Street, quote Q-1847 was 1,105. The measured job cost against that original quote was 850, leaving profit of 255.
Markup was 255 divided by 850, which was 30%. Margin was 255 divided by 1,105, which was about 23%.
The lined ceiling had excluded chasing. Extra cable and chasing were approved as a 160 change order, so invoice INV-1847 was 1,265. The cost of that change is not given, so do not combine the 1,265 invoice with the 850 original-scope cost to calculate profit.
Treat roof change orders the same way. Record extra revenue and extra cost together. Do not use extra revenue to make the original quote look more profitable.
Turn the cost worksheet into a clear customer quote
The cost worksheet is internal. Before sending the roofing contractor replacement quote, turn those costs into a clear scope, price, set of assumptions and approval method.
Use the quote-writing guide for the document basics, then make the roof scope specific enough for the estimator, customer and crew to read the same way.
Write separate scope lines
Give tear-off, deck work and installation their own headings. Add property protection, disposal and cleanup where the customer can see what is included.
Identify the property, quote reference, roof areas covered and specified assembly. State which existing components remain.
Avoid vague lines such as “replace roof as needed.” Name the action, component and boundary.
State assumptions and exclusions
List assumptions that affect roof replacement pricing. These may cover concealed layers, deck condition, access, existing components and the condition of hidden flashing interfaces.
Write exclusions beside the related scope. Do not hide the concealed-deck exclusion in general terms at the end.
State customer responsibilities for access, parked vehicles, pets, stored items and any decisions needed before work. Describe practical property-protection limits without promising that every existing fragile surface can carry roofing traffic.
State the commercial terms
Record the quote validity date, payment stages, GST/HST treatment and acceptance method. Use your current business terms rather than copying terms from an unrelated job.
Name the person allowed to approve a change order. On managed property or commercial work, record any approval limit before dispatching the crew.
Copy-ready roof replacement scope template
Tear-off scope: [protection, removal, handling, loading and disposal included] Concealed deck method: [included amount, measurement-based method or excluded pending change order] [material, measurement, labour, disposal, equipment, overhead and markup wording] Replacement assembly: [membranes, covering, flashings, ventilation, fasteners and accessories] [existing components that remain] Access and property protection: [delivery point, staging area, debris route and customer responsibilities] Assumptions: [conditions used to build the price] Exclusions: [work and concealed conditions outside the accepted scope] Change-order approval: [authorized person, approval record and point when extra work may proceed]
Run the Canadian business checks before sending the quote
Keep each question with the public body that handles it. Do not ask one regulator to interpret another regulator’s rules.
Ask the local building authority for the property about building permits and local business licensing. In many places that will be the municipality, but confirm the responsible authority from the property address.
Ask the province or territory’s roofing or trade regulator whether contractor or trade licensing applies to the work. Some jurisdictions may not place roofing licensing with a trade regulator, so identify the jurisdiction before naming a body.
Ask the province or territory’s occupational health and safety regulator about site-safety duties. Ask its workers’ compensation board separately about coverage for workers.
Check business-number and GST/HST questions with the Canada Revenue Agency (opens in a new tab). Use its current instructions rather than placing an assumed threshold, deadline or tax treatment in the quote.
Control hidden work when the roof is open
When the crew finds work outside the accepted scope, use the concealed-work method already written into the quote. Keep the exposed condition, measurement, added price and customer approval attached to the job.
If the existing roof has more material than the survey could confirm, treat that difference the same way. The quote assumption and change method should already tell the crew what to record.
Hand the accepted quote to the crew as a job-cost plan
Create job cost codes for tear-off, deck, installation, disposal and approved extras. Attach the site survey, photographs, assembly specification and customer acceptance.
Record actual labour, purchase receipts, equipment charges, disposal documents and subcontractor invoices against those codes. Keep the roofing contractor replacement quote beside the job-cost report so you can compare original quoted revenue with original-scope cost and review each approved change order with its own costs.