Our Expert Reviewers
Every cost calculator on this site is reviewed by a licensed contractor, engineer, or trade specialist. These are the professionals who keep our estimates accurate, current, and grounded in real-world pricing.
Marcus Bellini
Licensed Mechanical (HVAC) Contractor
Mechanical contractor specializing in residential HVAC system sizing, replacement, and indoor air quality.
Diane Whitaker
Licensed Roofing & Exterior Contractor
Roofing contractor with two decades estimating tear-offs, re-roofs, and exterior envelope work.
Hector Alvarez
Concrete & Paving Cost Estimator
Senior estimator for concrete flatwork, asphalt paving, and hardscape installations.
Susan Park
Master Plumber
Master plumber focused on water heaters, repipes, leak detection, and whole-home water systems.
Raymond Cole
Master Electrician
Master electrician specializing in service upgrades, solar, EV charging, and home electrification.
Olivia Grant
Landscape Architect & ISA Certified Arborist
Licensed landscape architect and certified arborist covering lawns, plantings, and tree care.
Nathan Brooks
Licensed General Contractor
General contractor specializing in remodels, additions, and whole-home renovations.
Priya Nair
Flooring & Tile Installation Specialist
Flooring specialist covering hardwood, tile, carpet, and resilient flooring installation.
Gregory Tanaka
Professional Painting & Coatings Contractor
Painting contractor specializing in interior/exterior coatings, drywall, and surface prep.
Karen Mitchell, PE
Structural & Foundation Engineer (PE)
Licensed structural engineer specializing in foundations, waterproofing, and structural repair.
Daniel Reyes
Pool & Outdoor Living Contractor
Outdoor-living contractor specializing in pools, decks, fences, and backyard structures.
Angela Foster
Home Services & Property Maintenance Specialist
Property-services pro covering cleaning, windows, doors, pest control, and home maintenance.
Thomas Lindgren, PLS
Licensed Professional Land Surveyor (PLS)
Professional land surveyor specializing in boundary, ALTA, and topographic surveys.