We Are Custom Builders

Custom Builders has provided quality personalized construction and elite customer service to clients around the First Coast for more than four decades. Aaron (Connie) Grubbs founded Custom Builders in 1972, and it remains family owned and operated today. Connie’s son and current president/owner, Daryl Grubbs, joined the company in 1976 after studying mechanical engineering at the University of Florida. When Connie retired in 1985, Daryl took over the company and has run it ever since, designing and building custom residential and commercial projects. Daryl also owns and manages commercial properties, in addition to doing land development and leasing.


Custom Builders is committed to building longstanding relationships with its clients. Daryl has constructed numerous developments over the years, truly valuing the opportunity to work with the same clients multiple times. Examples of customers who have chosen to return to Custom Builders for subsequent projects include:

• Sandy Forsyth of Aqua East, who contracted Custom Builders for 5 projects
• Mark Miller of Precision Tune, who chose Custom Builders for 6 projects
• Bill Goetz of Jacksonville and Nassau Power Sports, who selected Custom Builders for 6 projects



Recent residential projects include:

• A 5,500-square-foot custom home in the World Golf Village
• A 1,600-square-foot custom home on Charlotte Street in St. Augustine
• A 6400-square foot Net Zero Energy custom home in Neptune Beach


Recent commercial projects include:

• An 80,000-square-foot, $16 million office condominium in St. Augustine
• A 30,000-square-foot office condominium on St. Johns Bluff Road
• A 51,000 square feet of office and warehouse space on 103rd Street
• A 12,000-square-foot office/strip center under construction in St. Augustine
• Horizontal improvements on an 8-acre Yulee site
• A 16,000-square-foot retail building for Nassau Power Sports


In addition to designing and constructing new projects, Custom Builders owns, manages and leases a quarter of a million square feet of commercial space in six locations around the Jacksonville area.


Energy Star - Energy Efficient Features and Options

• Insulated Concrete Formed exterior walls (ICF)
• Icynene foam insulation
• Energy efficient roofing systems
• Insulated hot water lines
• Hot water circulating systems
• Energy Star appliances
• Geothermal heat pumps
• DeSuperheaters
• LED lighting

• Photovoltiac Solar Panels with battery/generator backup
• High performance windows
• E-gauge monitoring systems
• Engineered duct systems
• HVAC zoning
• Duct pressurization testing
• Blower door testing
• Variable Frequency drive motors
• Home automation
• Low flow plumbing fixtures