Many fans of home improvement shows wonder about the financial success of their favorite TV experts. Richard Trethewey, the trusted plumbing and heating specialist on “This Old House,” has built a solid career spanning decades on television.
His knowledge and friendly approach have made him a household name for DIY fans across America.
This blog will show you how much the plumbing pro, Richard Trethewey net worth and examine his income sources beyond TV, and look at his career growth from his early days to his status as a home improvement icon.
Richard Trethewey Net Worth
Richard Trethewey’s net worth is estimated between $1.6 million and $2 million as of 2023, reflecting his long-standing success as a plumber, entrepreneur, and television personality.
Most of his wealth comes from his decades-long role on This Old House and its spin-offs, where he is one of the longest-serving cast members.
In addition to his TV earnings, Trethewey has built a profitable business with RST Thermal, a company specializing in HVAC and plumbing services in Massachusetts.
His diverse income streams, including book authorship and editorial contributions, have solidified his financial standing, making him one of the most recognized and affluent figures in home improvement television
Richard Trethewey’s Career Highlights and Achievements
Richard Trethewey has built an impressive career as a master plumber, HVAC contractor, and beloved television personality.
- Started plumbing at age 11, learning hands-on skills in his family’s business, Trethewey Bros., which dates back to 1902.
- Became the on-camera plumbing and heating expert for This Old House in 1980, making him one of the show’s longest-serving cast members.
- Founded RST Thermal in 1990, a successful HVAC and plumbing company serving New England.
- Advocated for professionalism and training in the trades, contributing to industry outreach and education.
- Authored and contributed to several home improvement books and frequently appears on Ask This Old House and related media.
Business Ventures of Richard Trethewey
Richard Trethewey is not only a renowned TV personality but also a successful entrepreneur in the plumbing and HVAC industry.
His business ventures reflect his commitment to quality, innovation, and education in home comfort solutions.
1. Founder of RST Thermal
Richard established RST Inc. (now RST Thermal) in 1989 as a manufacturer’s representative firm specializing in high-quality hydronic heating and cooling products for New England.
2. Industry Training and Education
Through RST Thermal, he has provided technical and sales support, as well as training for contractors and tradespeople, promoting energy-efficient systems.
3. Television and Media Consulting
Richard’s expertise is showcased on This Old House and Ask This Old House, where he educates viewers and consults on plumbing and HVAC projects.
4. Family Business Legacy
Before founding RST Thermal, Richard worked in his family’s fourth-generation plumbing business, Trethewey Bros., established in 1902.
5. Product Innovation and Advocacy
He has championed the adoption of advanced hydronic and radiant heating technologies, influencing industry standards and practices.
The Bottom Line
Richard Trethewey has made his mark in the home improvement world not just through TV fame but through practical expertise and business smarts.
Richard Trethewey net worth comes from his multi-faceted career as a TV personality, author, and business owner.
What makes Trethewey stand out is his authentic passion for his craft. He’s shared his knowledge with millions of viewers, making complex systems easy to understand for everyday homeowners.
What’s your favorite Richard Trethewey moment from the show? Share in the comments below!
