AI estimating software for contractors splits into three lanes in 2026, and the right tool depends on how you bid. If you estimate from architectural plans, Togal.AI (from $199 per user per month) is the strongest takeoff engine. If you scope residential jobs on site visits, Handoff (from $149 per month) turns a walkthrough into an itemized estimate and proposal. If your techs quote at the kitchen table, the AI built into platforms like ServiceTitan and JobNimbus is the practical route. Expect to cut estimating time by half or more, not to eliminate the estimator.
Key takeaways
- Togal.AI starts at $199 per user per month (Essential) with a $299 Growth tier, and holds a 4.8 rating from 57 G2 reviews as of mid-2026.
- Handoff raised its entry price to $149 per month (Flex plan, $119 billed annually); the $39 starter plan quoted in older articles no longer exists.
- A University of Kansas study found Togal.AI up to 76% faster than On-Screen Takeoff on a test drawing set, with accuracy within a 5% margin. The claim applies to that comparison, not to every rival tool.
- Per Dodge Construction Network research, 87% of contractors expect AI to reshape the business but only 19% have changed their workflows, so adopting now still counts as early.
- Every tool here still needs human review. Plan on AI producing the first pass and your estimator spending 20 to 30 minutes checking scope, quantities, and local pricing.
AI estimating tools compared
| Tool | Best for | Rating | Starting price | Standout |
|---|---|---|---|---|
| Togal.AI | Plan-based takeoffs (GCs, commercial subs) | 4.8 on G2 (57 reviews) | $199/user/month, billed annually | Togal.CHAT plain-language plan queries |
| Handoff | Residential remodelers scoping on site | 4.8 on G2 (92 reviews); 4.5 on Capterra (42 reviews) | $149/month ($119 billed annually) | Residential cost database plus proposals and invoicing |
| STACK | Cloud takeoff and estimating for subs | 4.5 across 1,300+ G2 and Capterra reviews | $1,999/year (Start, 1 user) | Assembly library depth |
| Houzz Pro (AI estimates) | Remodelers who want estimates inside a CRM | Platform feature, not rated separately | $149/month (Essential plan) | Gemini-based pricing tuned to your ZIP code |
| JobNimbus Scout | Voice estimating for roofing and home services | Early-access beta | Included with JobNimbus | Voice-to-CRM estimates from the job site |
| ServiceTitan | HVAC, plumbing, and electrical shops | Custom-quoted platform | Roughly $245 to $500 per tech/month | Good-better-best estimate presentations |
How we chose
We compared the AI estimating and quoting tools contractors actually buy in 2026 on four points: verified current pricing (pulled from vendor pricing pages in July 2026), ratings with review counts from G2 and Capterra, published performance data rather than marketing claims, and fit to a specific bidding workflow. We left out tools with no public pricing and no meaningful review base. For the takeoff side of the market in more depth, see our guide to digital takeoff software and our top estimating tools roundup.
Togal.AI: best for plan-based takeoffs
Togal.AI is the pick when your estimates start with a set of architectural drawings. The software uses computer vision to detect, label, and measure spaces, walls, and building elements from uploaded plans, and its Togal.CHAT feature answers plain-language questions like "what is the total square footage of all bathrooms on floor 2?"
The speed claim deserves precision, because most articles copy it without context. A University of Kansas study, published by Togal.AI as a peer-reviewed case study, compared Togal against On-Screen Takeoff on a fire station drawing set. The takeoff that took over two and a half hours in On-Screen Takeoff finished in just over 30 minutes with Togal, up to 76% faster, with quantities inside a 5% margin of the manual result. That is a strong result on clear drawings against one competitor, not proof it beats every tool on every plan set. G2 reviewers (4.8 from 57 reviews) echo the same pattern: fast on clean layouts, manual cleanup needed on dense or heavily annotated plans.
Pricing: as of mid-2026, Togal.AI lists Essential at $199 per user per month and Growth at $299 per user per month, both billed annually, with a custom Business plan for teams of four or more. Note the change from earlier years, when $299 was the only published tier; the $199 Essential plan lowers the entry cost by a third.
Best for: general contractors, commercial subcontractors, and specialty trades bidding from drawings at least a few times per week. Below that volume, the math gets thin.
Handoff: best for residential remodelers
Handoff is built for remodelers who estimate from a site visit and a conversation, not from plans. You describe the project (type, size, location, quality tier) by voice or text, and Handoff generates an itemized estimate with labor and materials from a residential cost database, then turns it into a proposal with e-signature and invoicing. Reviewers on G2 rate it 4.8 from 92 reviews; Capterra reviewers score it 4.5 from 42 reviews, with the recurring complaint being price and occasional labor-cost misses that need manual correction.
Pricing, corrected for 2026: older roundups still quote a $39 starter plan. That plan is gone. Handoff's pricing page now lists Flex at $149 per month ($119 billed annually, 50 AI credits, 2 users), Pro at $299 per month ($239 annually, unlimited AI credits, 5 users), and Scale at $899 per month ($719 annually), which adds AI takeoffs from residential plans up to 5,000 square feet. Budget accordingly: the realistic entry cost tripled.
Best for: bathroom and kitchen remodelers and general residential contractors who want estimate, proposal, and invoice in one tool. If you mainly need polished proposals rather than AI pricing, compare it against our best proposal software picks first.
STACK: the cloud takeoff workhorse
STACK sits between Togal's pure AI takeoff and traditional desktop tools. The platform runs in a browser, handles quantity takeoff and estimating, and has added AI-assist features for plan reading on top of a deep assembly library. Across G2 and Capterra, STACK holds roughly a 4.5 rating over 1,300+ reviews, one of the largest review bases in the category, which matters if you want evidence the tool survives daily production use.
Pricing: published plans start at $1,999 per year for a single full-access user (Start) with a Grow plan at $4,999 per year covering three users, per STACK's 2026 listings on Capterra and Software Advice. Per-seat costs drop as you add users.
Best for: subcontractors doing steady takeoff volume who want proven cloud software with AI assistance rather than an AI-first tool.
Houzz Pro: AI estimates inside a CRM
Houzz Pro folds AI estimating into its contractor CRM rather than selling it as a standalone tool. Per Houzz Pro's help pages, you describe the scope by typing or voice, and the AI drafts an edit-ready estimate with itemized labor and materials, priced using Gemini AI data adjusted to the project ZIP code. The same feature drafts proposals, invoices, and change orders, and can bulk-edit line items and markups.
Pricing: Houzz Pro plans in 2026 run from Essential at $149 per month to Pro at $249 and Ultimate at $499, per Software Finder and Forbes Advisor listings. The AI features come with the platform, not as an add-on.
Best for: remodelers already using (or shopping for) Houzz Pro for CRM and lead flow. Buy it for the platform; treat the AI estimating as a strong bonus. To see where it fits among your other tools, see the complete remodeler software stack.
Field estimating: JobNimbus Scout and ServiceTitan
Field service contractors quote in driveways and kitchens, so their AI shows up inside the CRM they already run. JobNimbus announced Scout on January 20, 2026: a voice assistant, still in early-access beta as of mid-2026, that lets a tech speak or type to create estimates, jobs, contacts, and invoices in the JobNimbus app before leaving the site. If you run roofing or home services on JobNimbus, it costs nothing extra to watch the beta mature; our JobNimbus review covers the base platform.
ServiceTitan approaches quoting through structured pricebooks and good-better-best estimate presentations backed by its Titan Intelligence AI layer, rather than free-form AI estimate generation. Pricing is custom-quoted; third-party analyses such as Procured place it around $245 to $500 per technician per month plus implementation fees. That spend only makes sense at scale, and our ServiceTitan review walks through when it pays off.
The accuracy question: should you trust AI estimates?
AI estimates are trustworthy as a first draft and risky as a final bid. The University of Kansas test kept Togal.AI within a 5% quantity margin on clean drawings, and Capterra reviewers of Handoff report real time savings alongside labor rates that sometimes need correction for their market. The consistent pattern across review platforms: the AI handles the bulk measuring and line-item generation, and a human spends 20 to 30 minutes verifying scope gaps, odd quantities, and local pricing before anything goes to a customer.
That review step is where the profit lives. An unchecked AI estimate that misses 5% of quantities on a $200,000 job is a $10,000 hole. The contractors winning with these tools are not replacing estimators; they are letting the same estimator produce two to three times the bids at the same accuracy, which compounds with the other office gains covered in our guide to how AI cuts contractor admin time.
Which tool should you choose?
- Choose Togal.AI if you bid from architectural plans several times a week and takeoff hours are your bottleneck.
- Choose Handoff if you are a residential remodeler estimating from walkthroughs and you want proposal and invoicing in the same tool.
- Choose STACK if you want a proven cloud takeoff platform with a huge review base and AI assist, and you bid enough volume to justify annual pricing.
- Choose Houzz Pro if you want CRM, marketing, and AI estimates in one subscription rather than a dedicated estimating tool.
- Stay inside your CRM (JobNimbus Scout, ServiceTitan) if you run field service and your techs quote on site.
- Start with prompts if you are not ready to pay: our ChatGPT proposal prompts get you part of the way for the cost of a ChatGPT subscription, without the cost database.
Whatever you pick, the goal is not faster estimates for their own sake. More bids out the door with the same team is the only way to grow revenue without hiring, and per Dodge Construction Network data, 81% of your competitors have not adapted their workflows yet. For the wider picture of what is real versus hype, see AI for contractors in 2026.
How we put this together
We pulled pricing directly from vendor pricing pages (Togal.AI, Handoff, STACK's Capterra and Software Advice listings, Houzz Pro coverage by Software Finder and Forbes Advisor) in July 2026, took ratings and review counts from G2 and Capterra as of the same month, and used Togal.AI's published University of Kansas case study for the speed and accuracy figures. ServiceTitan pricing is custom-quoted, so we cited third-party ranges and marked them as estimates. Adoption figures come from Dodge Construction Network research.
Frequently asked questions
How much does AI estimating software cost in 2026?
Expect $149 to $299 per month for most contractors: Handoff starts at $149 per month, Togal.AI at $199 per user per month billed annually, and Houzz Pro at $149 per month with AI included. Takeoff platforms like STACK price annually, from $1,999 per year for one user.
Is AI estimating accurate enough to bid from?
Not without review. Published testing (the University of Kansas study of Togal.AI) shows quantities within about 5% of manual takeoffs on clean drawings, and reviewers report AI-generated labor rates sometimes miss local market pricing. Treat AI output as a first pass and budget 20 to 30 minutes of estimator review per bid.
What is the cheapest AI estimating tool for contractors?
Handoff's Flex plan at $119 per month billed annually ($149 monthly) is the lowest verified entry point among dedicated AI estimating tools in mid-2026. Houzz Pro Essential matches the $149 price but is a CRM with AI estimating included. The $39 plans mentioned in older articles have been discontinued.
Can ChatGPT replace dedicated estimating software?
ChatGPT can draft scopes and proposal language, but it has no maintained construction cost database, no takeoff engine, and no ZIP-code pricing, so its numbers are guesses. Use it for writing and structure (our ChatGPT proposal prompts show how) and a dedicated tool for pricing.
Do AI takeoff tools work for residential remodels without plans?
No, takeoff tools like Togal.AI and STACK need drawings to measure. For plan-free residential work, use a scope-based tool like Handoff or Houzz Pro's AI estimates, which price from a project description instead. Handoff's Scale plan adds AI takeoffs for residential plans up to 5,000 square feet if you do get drawings.
What changed in AI estimating pricing recently?
Two moves matter: Handoff dropped its cheap starter tier and now begins at $149 per month, roughly triple the old $39 entry price, while Togal.AI added a $199 Essential tier below its long-standing $299 plan. Verify pricing on vendor pages before budgeting, since older roundups still quote both outdated numbers.
