Open source M&A tools for the trades

· Main Street Wealth Open Source

4 min read Original article ↗

100 tools · open source · maintained by Main Street Wealth

Open source M&A tools for home services.

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.

Hub live
18/100

Main-site tools
20

Trades
7

Published by Main Street Wealth

Axial Top 25 Firm1H 2026 & 2025Deals closed100+In-trade experience7+ yearsReviewed byJ.D., Columbia LL.M.

About the firm →

The catalog

Ten categories, one hub.

Every category maps to a stage of the deal. Pick your spot and dig in.

Open the full directory →

B.12 tools

Valuation

Calculators and models to size a business and defend a number.

EBITDA calculatorSDE calculatorAdjusted EBITDA add-backs+9 more

C.10 tools

Financial analysis & QoE

Normalize the financials, prove the earnings, and stress the quality.

QoE checklistFinancials normalizerQuickBooks & Xero parser+7 more

D.10 tools

Deal structure & proceeds

Model earnouts, seller notes, waterfalls, and net-of-everything proceeds.

Earnout simulatorSeller note calculatorNet proceeds calculator+7 more

E.10 tools

Sourcing & marketing

Build the buy-box, run outreach, and manage the pipeline.

Buy-box builderBuyer matcherTarget screener+7 more

F.10 tools

Due diligence

Request lists, data rooms, red-flag scanners, and operational checks.

DD request listData room structureData room completeness+7 more

G.8 tools

Legal & closing

NDAs, LOIs, disclosure schedules, and state-by-state references.

NDA generatorLOI generatorLOI comparison+5 more

H.8 tools

Exit readiness

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

Data & benchmarks

Open datasets, APIs, and dashboards covering multiples and trade KPIs.

Open multiples datasetTrade benchmarksPublic comps+5 more

J.8 tools

AI & automation

Prompt libraries, extraction pipelines, evals, and an MCP server for agents.

Prompt libraryCIM drafterFinancials summarizer+5 more

K.6 tools

Trade-specific toolkits

HVAC, plumbing, roofing, pest, landscaping, pool, and electrical bundles.

HVAC toolkitPlumbing toolkitRoofing toolkit+3 more

Where to start

Start here.

Quick to adopt, searched often, and the fastest path to a defensible valuation.

See all live tools →

Valuation·#11Live

EBITDA calculator

Reconstruct EBITDA from net income by adding back interest, taxes, depreciation, and amortization.

Pre-saleOpen

Valuation·#12Live

SDE calculator

Compute seller's discretionary earnings for owner-operated businesses, including an owner's compensation add-back.

Pre-saleOpen

Valuation·#13Live

Adjusted EBITDA add-backs

Build a defensible add-back schedule with a documentation checklist for each adjustment.

Pre-saleOpen

Valuation·#14Live

Valuation multiples lookup

Look up typical EBITDA multiples by trade and revenue band, with the sample size and the source.

Pre-saleOpen

Valuation·#22Live

Rollover equity calculator

Model rollover equity: cash at close, retained equity, and the second-exit outcome.

StructuringOpen

Deal structure & proceeds·#35Live

Net proceeds calculator

What the seller actually keeps after taxes, broker fees, legal, and payoffs.

StructuringOpen

Exit readiness·#71Live

Exit readiness score

Score the business across financials, people, systems, and growth to see how sale-ready it is.

Pre-saleOpen

Exit readiness·#72Live

Owner dependence

Score owner dependence across sales, operations, finance, and relationships.

Pre-saleOpen

By trade

Tools, benchmarks, and advisory by trade.

Each trade has its own economics. Jump to the hub toolkit or straight to the advisory page on mainstreetwealth.ai.

Electrical, garage door, and other →

HVAC

Rollover-friendly, PE-active. HVAC multiples compound with recurring maintenance plans.

Plumbing

SBA-financeable at the bottom; family offices and PE roll-ups at the top.

Roofing

Storm cycles and insurance mix drive add-back schedules and multiples.

Pest control

Highest recurring-revenue mix in the trades. Attracts premium multiples.

Landscaping

Maintenance vs. design-build mix changes multiple and buyer universe.

Pool services

Seasonal, membership-driven. Route density and geography do the heavy lifting.

Open datasets

Multiples, benchmarks, and comps you can actually cite.

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

Named authors. Named reviewers. Dated reviews.

Every tool here ships with a byline and a review date. Here's who's behind it.

Full team & credentials →

Avaz Bokiev

Partner & CTO, Main Street Wealth

Partner and CTO at Main Street Wealth. Leads the firm's technology, product, and open source work.

Sukhrobjon (Rob) Ismoilov

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

Contribute a tool, dataset, or benchmark.

This hub is built in the open. Everything from calculators to the AI tooling takes PRs.

Get a real number

Need a defensible valuation for your business?

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.