HVAC
Rollover-friendly, PE-active. HVAC multiples compound with recurring maintenance plans.
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
EBITDA calculator
Revenue (LTM)
$6.4M
Net income
$620k
D&A
$180k
Interest
$95k
Taxes
$155k
Owner comp add-back
$220k
Adjusted EBITDA
$1,270,000
Margin: 19.8% · Multiple 6.5× → $8.3M range
Published by Main Street Wealth
Axial Top 25 Firm1H 2026 & 2025Deals closed100+In-trade experience7+ yearsReviewed byJ.D., Columbia LL.M.
About the firm →On mainstreetwealth.ai
20 tools on the main site, free.
Instant valuation, benchmarks, deal-structure modeling, and more. Pairs with the open source hub.
Business valuation calculator
Instant business valuation estimate from the main site.
EBITDA benchmarker
Benchmark your EBITDA against the trade.
SDE vs. EBITDA
Pick the right earnings metric for your deal size.
Owner salary normalizer
Normalize owner compensation to market before add-back.
Recurring revenue analyzer
Measure recurring revenue and the premium it unlocks.
Customer concentration analyzer
80/20 risk check on revenue by customer.
Employee dependency check
Workforce concentration risk, named and quantified.
Seasonal normalizer
Normalize LTM earnings for seasonality and weather.
Deal structure analyzer
Model structure: cash, rollover, earnout, seller note.
Transaction tax estimator
Rough-cut tax model on sale proceeds.
Buyer readiness score
Score your business against what buyers actually want.
Exit timeline planner
Build a 12–36 month exit timeline with the right workstreams.
Reputation score
What your online reputation adds (or costs) at exit.
Comparable sales
Comparable transactions, filtered to your trade and size.
Competitor acquisitions tracker
Who's buying what in your trade.
Non-compete analyzer
Non-compete scope and enforceability check.
Equipment depreciation
Trucks, equipment, and fixed-asset depreciation modeled.
Route density analyzer
Route density and its effect on margins and multiples.
Franchise analyzer
What a franchise brand adds to (or costs) your valuation.
The catalog
Ten categories, one hub.
Every category maps to a stage of the deal. Pick your spot and dig in.
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.
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.
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
Plumbing
5.1×
LTM EBITDA
Roofing
4.4×
LTM EBITDA
Pest control
7.2×
LTM EBITDA
Landscaping
5.3×
LTM EBITDA
Pool
4.9×
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.
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.
1
Pick a good-first-issue
Each tool page lists what's needed. Start with the ones tagged for new contributors.
Learn more 2Open a PR against the hub
One tool, one PR. Keep the scope small. We'll review within a week.
Learn more 3Ship it with your name on it
Contributors are credited on the tool page, in the changelog, and in the data license.
Learn moreGet 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.
- Honest range, grounded in trade benchmarks
- Walk-through of each add-back and multiple
- Clear next steps if you decide to go to market