Business Modification Group Review

Selling an HVAC or plumbing business is one of the more complicated financial transactions a small business owner will ever face.

Business Modification Group is a brokerage firm that handles exactly this type of transaction, operating exclusively in the heating, cooling, and plumbing space.

Founded by Patrick Lange, a former HVAC business owner himself, the firm positions itself as a specialist rather than a generalist broker, which is a meaningful distinction when the sale of a business can represent years or decades of a person's work and savings.

The firm is led by Patrick Lange, who serves as the primary broker and public face of the company.

The team also includes Brian Barquilla as Director of Marketing, Joshua Lange as a Data Analyst and Business Broker, and Courtney McFarland handling office management.

That's a lean four-person operation, which has trade-offs. A smaller team often means more personalized attention per client; it also means less bandwidth when deal volume increases.

The firm's Google reviews hold a 5.0 rating, though the total number of reviews was not displayed on the site at the time of this review.

That rating is worth noting but should be weighed against volume before reading too much into it.

Business Modification Group breaks their seller process into four stages:

1. Free Expert Valuation — They assess what the business is actually worth before any listing or outreach begins.
2. Confidential Marketing — Only pre-screened, qualified buyers are contacted. The business is not publicly advertised in ways that could tip off employees or customers.
3. Negotiation — The firm handles offer negotiation with the goal of securing maximum value for the seller.
4. Closing Support — Paperwork, due diligence, lease transfers, inventory, and asset documentation are all managed through to close.

The confidentiality piece is one the firm emphasizes heavily, and for good reason.

An HVAC business owner who lets word slip too early that the company is for sale can watch customer retention drop and key employees start sending out resumes.

That's a real problem in a service-based business where relationships and team stability directly affect revenue.

The site publishes a handful of completed transactions. Here's what those looked like:

Three of the four listed sales closed above asking price.

The Washington state deal, which was the largest at $2.70M asking, sold at the listed price rather than above it, which may simply reflect the more competitive dynamic in larger transactions where buyers have more leverage.

The cash flow figures vary significantly across listings, which suggests Business Modification Group works with businesses at different stages of profitability, not just high-margin operators.

The firm works both sides of the market. For buyers, Business Modification Group maintains an active listings page where HVAC companies currently available for acquisition are posted. 

The firm vets buyers before connecting them with sellers, checking financial qualifications to make sure only serious, funded buyers get access to deal details.

Buyers without an HVAC license can still participate.

The firm has addressed this directly in their educational video content, noting that regulatory changes have created pathways for unlicensed buyers to acquire HVAC companies, depending on state requirements and how the business is structured post-acquisition.

One thing that sets Business Modification Group apart from a lot of brokers is the volume of free educational content available on the site. Topics covered in their video library include:

• The difference between a stock sale and an asset sale
• How "creative accounting" by sellers affects deal viability
• The five major expenses sellers encounter at closing
• Common reasons buyers lose deals
• Why timing the tax implications matters before you decide to sell

This content is genuinely useful, not just promotional. An HVAC owner who spends an hour watching these videos will walk into any brokerage conversation better prepared, regardless of who they ultimately hire.

Business Modification Group claims to have completed more HVAC sales than any other broker in recent years.

That claim appears on multiple pages of the site but does not include a data source or third-party verification. It may be accurate. It may be industry scuttlebutt that became marketing copy.

A prospective seller should ask directly for documentation or references before placing too much weight on it. The firm does not get paid until the sale closes. 

That's a standard contingency arrangement in business brokerage, but it's worth naming clearly: their financial incentive aligns with getting deals done, which generally benefits sellers but also means the broker is motivated to close even if the timing or price isn't perfect.

Ask hard questions about any offer before accepting.

The website also mentions a free business valuation with no obligation. This is a common lead-generation tool across the brokerage industry.

In this case, it appears to be a genuine first step rather than just a data capture exercise, given that the firm operates on contingency and would need accurate numbers before committing to a listing anyway.

Business Modification Group is a reasonable fit if you own an HVAC or plumbing business in the United States and are considering a sale in the next one to three years. 

The vertical focus is a real advantage.

A general business broker may know transactions, but they won't know the seasonal revenue patterns of an HVAC company, the impact of equipment financing on valuation, or how to explain cash flow fluctuations to a buyer unfamiliar with the industry.

The firm is less clearly suited to very large transactions above $5 million in enterprise value, where institutional buyers with legal teams and complex due diligence requirements may benefit from a larger brokerage with more transactional staff.

Below that threshold, the specialized knowledge and personal attention from Lange likely outweigh the scale advantages of a bigger firm.

Business Modification Group occupies a specific and defensible niche in HVAC and plumbing business brokerage, with published transaction data and founder-level industry experience that most generalist brokers cannot match.

Anyone considering a sale in this sector would be well-served to at least request the free valuation and evaluate whether the firm's approach fits their timeline and goals.