HVAC
Rollover-friendly, PE-active. HVAC multiples compound with recurring maintenance plans.
· Main Street Wealth Open Source
100 tools · open source · maintained by Main Street Wealth
Valuation calculators, QoE checklists, deal-structure models, diligence packs, and AI agents. Built for lower middle-market deals in HVAC, plumbing, roofing, pest, landscaping, pool, and electrical. Pairs with the 20 live tools on mainstreetwealth.ai.
Published by Main Street Wealth
Axial Top 25 Firm1H 2026 & 2025Deals closed100+In-trade experience7+ yearsReviewed byJ.D., Columbia LL.M.
The catalog
Every category maps to a stage of the deal. Pick your spot and dig in.
B.12 tools
Calculators and models to size a business and defend a number.
EBITDA calculatorSDE calculatorAdjusted EBITDA add-backs+9 more
C.10 tools
Normalize the financials, prove the earnings, and stress the quality.
QoE checklistFinancials normalizerQuickBooks & Xero parser+7 more
D.10 tools
Model earnouts, seller notes, waterfalls, and net-of-everything proceeds.
Earnout simulatorSeller note calculatorNet proceeds calculator+7 more
E.10 tools
Build the buy-box, run outreach, and manage the pipeline.
Buy-box builderBuyer matcherTarget screener+7 more
F.10 tools
Request lists, data rooms, red-flag scanners, and operational checks.
DD request listData room structureData room completeness+7 more
G.8 tools
NDAs, LOIs, disclosure schedules, and state-by-state references.
NDA generatorLOI generatorLOI comparison+5 more
H.8 tools
For owners: score the gap, plan the pre-sale year, and plan the proceeds.
Exit readiness scoreOwner dependenceValue gap analyzer+5 more
I.8 tools
Open datasets, APIs, and dashboards covering multiples and trade KPIs.
Open multiples datasetTrade benchmarksPublic comps+5 more
J.8 tools
Prompt libraries, extraction pipelines, evals, and an MCP server for agents.
Prompt libraryCIM drafterFinancials summarizer+5 more
K.6 tools
HVAC, plumbing, roofing, pest, landscaping, pool, and electrical bundles.
HVAC toolkitPlumbing toolkitRoofing toolkit+3 more
Where to start
Quick to adopt, searched often, and the fastest path to a defensible valuation.
Valuation·#11Live
Reconstruct EBITDA from net income by adding back interest, taxes, depreciation, and amortization.
Pre-saleOpen
Valuation·#12Live
Compute seller's discretionary earnings for owner-operated businesses, including an owner's compensation add-back.
Pre-saleOpen
Valuation·#13Live
Build a defensible add-back schedule with a documentation checklist for each adjustment.
Pre-saleOpen
Valuation·#14Live
Look up typical EBITDA multiples by trade and revenue band, with the sample size and the source.
Pre-saleOpen
Valuation·#22Live
Model rollover equity: cash at close, retained equity, and the second-exit outcome.
StructuringOpen
Deal structure & proceeds·#35Live
What the seller actually keeps after taxes, broker fees, legal, and payoffs.
StructuringOpen
Exit readiness·#71Live
Score the business across financials, people, systems, and growth to see how sale-ready it is.
Pre-saleOpen
Exit readiness·#72Live
Score owner dependence across sales, operations, finance, and relationships.
Pre-saleOpen
By trade
Each trade has its own economics. Jump to the hub toolkit or straight to the advisory page on mainstreetwealth.ai.
Rollover-friendly, PE-active. HVAC multiples compound with recurring maintenance plans.
SBA-financeable at the bottom; family offices and PE roll-ups at the top.
Storm cycles and insurance mix drive add-back schedules and multiples.
Highest recurring-revenue mix in the trades. Attracts premium multiples.
Maintenance vs. design-build mix changes multiple and buyer universe.
Seasonal, membership-driven. Route density and geography do the heavy lifting.
Open datasets
Open data by trade and size, with sample sizes and sources. Pulled by hand first, then kept honest with community PRs. Cross-checked against the main-site comparable sales and competitor acquisitions tools.
HVAC median
5.6×
LTM EBITDA
Pest control
7.2×
LTM EBITDA
Landscaping
5.3×
LTM EBITDA
Illustrative figures. Full dataset ships with sample size and source for every row.
Who maintains this
Every tool here ships with a byline and a review date. Here's who's behind it.
Partner & CTO, Main Street Wealth
Partner and CTO at Main Street Wealth. Leads the firm's technology, product, and open source work.
Founder & Principal, Main Street Wealth
Founder and Principal of Main Street Wealth. J.D., Columbia LL.M. in Corporate Finance, M&A and Restructuring.
Build in the open
This hub is built in the open. Everything from calculators to the AI tooling takes PRs.
Get a real number
Share a few financials and we'll walk you through what a buyer would actually pay today, with context on how we got there.
Not legal, tax, or financial advice. For a specific recommendation, talk to a licensed advisor.