Contractor Gorilla and Skill Mammoth hunt in the same forest: both build websites for contractors, both niche hard into the trades, and in a coincidence that made us smile, both moved early on ChatGPT Ads. So this comparison is closer than most on our list, and the honest version comes down to product shape: a design-led shop versus a growth system. Here is who fits which.
The two shops, plainly
Contractor Gorilla is an 18-year web design and marketing shop built for the trades: residential, commercial, and industrial contractors, from roofers and HVAC crews to log home builders. The offer leads with design (websites and logos, with an unlimited-revision initial design phase) and layers marketing behind it: SEO, Google Ads, content, and ChatGPT Ads management. Their numbers are the pitch: over 3,827 contractors served, 254% average client growth, 972,109+ leads generated, and 472+ five-star reviews. The verifiable slice on their own homepage widget is a 5.0 average across 62 Google reviews, which is genuinely strong; the larger figures aggregate sources and years the way marketing numbers do, so weigh them as marketing.
Skill Mammoth (Minneapolis, founded 2023) is a home-services growth system: the website is one component alongside local SEO, AI search optimization, Local Service Ads management, flat-fee PPC and Meta, review engines, and software we build in-house. Published pricing, monthly terms, no contracts.
Pricing, side by side
| Contractor Gorilla | Skill Mammoth | |
|---|---|---|
| Pricing model | Quoted after consultation, by project complexity | Published flat pricing, no contracts |
| Websites | Custom quote; unlimited revisions in initial design | $1,000 / $3,000 / $8,000 tiers |
| SEO | Quoted | $350 / $750 / $1,500 per month |
| Paid ads | Google Ads + ChatGPT Ads, quoted | LSAs $300/mo; PPC $600/mo or 12%; Meta bundle $1,000/mo; ChatGPT Ads +$300/mo |
| Local Service Ads | Not advertised | Core service, dispute recovery included |
| Verdict | Similar neighborhoods, different maps: one prices the project after hearing it, the other publishes the menu. | |
Where they genuinely differ
Design-led versus system-led. Contractor Gorilla's center of gravity is the website and brand: the portfolio is deep, the mascot is committed, and the unlimited-revision design phase is a real buyer benefit. Skill Mammoth treats the site as the conversion layer of a measured system: rankings, reviews, paid leads, and follow-up automation, reported monthly against cost per lead. If you mainly want a great site, their shape fits; if you want the site to be one gauge on a dashboard, ours does.
The paid-channel stack. Both shops run Google Ads and, unusually, both sell ChatGPT Ads management. The gap is Local Service Ads: the pay-per-lead, Google Verified channel that beats PPC on cost-per-acquired-customer in most trades doesn't appear in Contractor Gorilla's advertised lineup, and it is where we start most contractor budgets. If LSAs are absent from a paid strategy, the strategy starts a rung high.
AI search. Showing up when homeowners ask ChatGPT for a contractor is a core Skill Mammoth service. Contractor Gorilla advertises ads inside ChatGPT but not optimization of the organic answers, which are different plays on the same platform shift.
Tenure versus tooling. Their 18 years is real advantage: process maturity, portfolio breadth, and survival through two platform eras. Our counterweight is software ownership: instant-estimate widgets, client portal, review engines, dashboards, built in-house and left with the client. Pick which asset class you value.
Who should pick which
- Pick Contractor Gorilla if: the website and brand are the project, you value a long-tenured design shop with a deep contractor portfolio, and quoted project pricing suits how you buy.
- Pick Skill Mammoth if: you want a growth system with the price published before the call, LSA-first paid strategy, AI search built in, and software you keep.
- Either way: ask the three sorting questions from our agency evaluation guide: what happens in the first 90 days, who owns everything at exit, and show me your own rankings.
Frequently asked questions
Who is Contractor Gorilla?
A contractor-niche web design and marketing shop with 18 years in business, claiming over 3,827 contractors served across roofing, HVAC, electrical, and general construction. Services: website and logo design, SEO, Google Ads, content, and ChatGPT Ads management. Their homepage Google widget shows a 5.0 average across 62 Google reviews; marketing copy cites 472+ five-star reviews across sources.
How much does Contractor Gorilla cost?
They don't publish pricing; quotes follow a consultation and scale with project complexity. Skill Mammoth publishes flat pricing: websites $1,000 to $8,000, SEO from $350 a month, LSAs from $300 a month, PPC $600 a month or 12% of spend, no contracts.
What is the main difference between the two?
Product shape. Contractor Gorilla is design-led: websites and logos first, marketing layered on, priced by quote. Skill Mammoth is a growth system: the site plus local SEO, AI search, Local Service Ads, review engines, and in-house software, on published flat monthly pricing.
Do both agencies offer ChatGPT Ads?
Yes, a genuinely rare overlap: both moved early on OpenAI's ad placements. Contractor Gorilla sells it within PPC management; Skill Mammoth runs it as a $300/mo add-on on any ad tier, with reporting folded into the monthly report.
Should I choose Skill Mammoth or Contractor Gorilla?
Contractor Gorilla for a strong contractor website and brand from a long-tenured design shop. Skill Mammoth for the website as part of a measured growth system with published pricing and LSA-first paid strategy. Both are real operators serving the same trades; the fit question is design project versus growth system.
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