StairkeyStairkey Software Inc
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About
CostMate is estimating software built for New Zealand residential builders — solo operators and two-person crews doing renovations, bathrooms, decks and additions.
Labour is calculated using phase-based production rates adjusted for real site conditions (access, height, existing-building constraints, crew size) rather than a flat square-metre rate. BRANZ wastage percentages are applied to material quantities automatically. NZ Building Code requirements — external moisture, wet areas, energy efficiency, timber framing — are built into every estimate by default, not left as a checklist.
A quote-checking step reviews the estimate and flags scope commonly missed on residential quotes before it's sent to the client.
CostMate runs on a rules engine, not a language model — every quantity, wastage figure and code item is deterministic and reproducible, and can be traced back to why it's there. It is not a quantity surveying package, project management platform, or job scheduling tool.
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About
Stairkey is an all-in-one business management platform for small construction, trades, and contracting companies. It combines estimating, invoicing, project management, accounting, and CRM in a single web app, so contractors can run a job from first quote to final payment without juggling separate tools.
Build detailed line-item estimates and convert them in one click into invoices and fully scheduled projects — complete with tasks, subtasks, material and tool lists, and job costing. Track actual costs against budget, issue change orders, and coordinate crews and clients through a mobile portal. Built-in double-entry accounting handles sales tax, reconciliation, and financial reports.
It also offers scheduling with route and weather planning, contact management, and an optional AI assistant connection via the Model Context Protocol.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
Solo, two-person, small residential building companies in New Zealand who price their own renovation, bathroom, deck, and home addition work.
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Audience
Small construction, trades, and contracting businesses — general contractors, renovators, home builders, and specialty trades (electrical, plumbing, HVAC, carpentry, flooring) — plus owner-operators who need estimating, job management, and accounting in one place.
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and VideosNo images available
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Screenshots and VideosNo images available
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Pricing
$39 NZD/user/month
Free Version
Free Trial
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Pricing
$20/month
Free Version
Free Trial
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Reviews/
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Reviews/
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationCostMate
Founded: 2026
New Zealand
costmate.co.nz
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Company InformationStairkey Software Inc
Founded: 2026
Canada
stairkey.com
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Integrations
Model Context Protocol (MCP)
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