Klaus & Sons Plumbing, Heating & Air Conditioning — Montclair, CA

Klaus & Sons Plumbing, Heating & Air Conditioning in Montclair, CA is a family-owned plumbing and HVAC firm serving the Inland Empire since 1973. The company is licensed and insured and provides 24/7 emergency service for homes and businesses. Small crews of trained technicians respond to leaks, broken heaters, sewer problems, and air conditioning failures.

Business Overview

Klaus & Sons handles both residential and commercial work. Staff include certified HVAC and plumbing technicians who perform installations, repairs, and routine maintenance. Emergency calls are available around the clock so customers in Montclair and nearby towns can get help late at night or on weekends.

Key Services

Services are grouped for clarity. The team follows industry standards and holds NATE, NCI, and BPI certifications for energy work and HVAC service.

• Plumbing: plumbing inspection, leak repair, drain and sewer repair, water pipe and gas line installation and repair, faucet, sink, shower, bathtub, and toilet installation and repair.
• Heating & Air Conditioning: HVAC installation or replacement, system repair, seasonal maintenance, duct replacement, attic insulation, Carrier system sales and service.
• Water Heaters & Disposal: water heater installation and repair, garbage disposal repair, and whole-house plumbing upgrades.
• Energy & Performance: building energy audit, home performance assessments, and recommendations to lower energy use in Inland Empire homes.

Areas Served

Klaus & Sons serves Montclair, CA and much of the Inland Empire. Regular service areas include:

Riverside, Fontana, Rancho Cucamonga, Ontario, Corona, Pomona, Jurupa Valley, Mira Loma, Chino, Chino Hills, Upland, Eastvale, Diamond Bar, Glendora, Rowland Heights, Covina, Montclair, Claremont, San Dimas, La Verne, Walnut, Norco, Glen Avon, Charter Oak, and San Antonio Heights.

Company History

Founded in Upland in 1973, Klaus & Sons grew from a local repair shop into a multigenerational service company. Over the decades the business added HVAC work, energy assessments, and commercial services. The family kept a neighborhood focus while expanding service routes across the Inland Empire.

Leadership

The Klaus family leads operations across field teams and office staff. Leadership blends trade experience and long local presence. Technicians receive ongoing training and company leaders take part in regional industry groups and community events. That hands-on management helps keep response times steady and workmanship consistent.

Specialties & Highlights

• Family-run since 1973 with three generations in the trade.
• 24-hour emergency response for plumbing and HVAC failures.
• NATE, NCI, and BPI-certified technicians for reliable energy audits and HVAC service.
• Carrier system sales, duct replacement, and attic insulation for hotter Inland Empire summers.
• Both residential and commercial projects, from small repairs to system replacements.

Why Locals Choose Klaus & Sons Plumbing, Heating & Air Conditioning

Residents and businesses in Montclair, CA turn to Klaus & Sons for steady, practical service and long experience in southern California weather. The company balances quick emergency response with trained technicians and energy-focused options. That combination fits homeowners with older single-family houses and business owners who need dependable HVAC and plumbing work.

For repairs, installs, or an energy assessment, Klaus & Sons Plumbing, Heating & Air Conditioning in Montclair, CA offers on-call help and local know-how.