Welzig Heating, Air, Plumbing & Electric

    Your business?

    HVAC & Heating

    Longmont, CO

    Welzig Heating, Air, Plumbing & Electric is a full-service home contractor serving Longmont and the Greater Boulder Area since 1994. They provide comprehensive HVAC services (heating, cooling, heat pumps, ductless systems), plumbing (repairs, water heaters, drain cleaning, gas lines), and electrical work (repairs, installation, EV chargers, generators). All technicians are licensed, insured, and factory-trained, with 24/7 emergency service available and financing options to fit your budget.

    Best for: EmergenciesBudget-FriendlyPreventive MaintenanceEnergy Efficiency

    Ideal for: Longmont homeowners needing reliable HVAC maintenance and repair, families dealing with urgent plumbing or electrical emergencies, homeowners planning system upgrades or replacements

    Service area: Longmont, CO and surrounding communities including Boulder, Fort Collins, Lafayette, Erie, and nearby areas

    What Sets Welzig Heating, Air, Plumbing & Electric Apart

    Local Since 1994: Over 30 years of experience serving Longmont and the Greater Boulder Area with deep knowledge of local homes and seasonal demands.

    24/7 Emergency Service: Available around the clock for urgent HVAC, plumbing, and electrical issues with same-day service prioritization.

    All-in-One Home Services: Single trusted contractor for heating, cooling, plumbing, and electrical — eliminating the need to coordinate multiple service providers.

    24/7 Emergency ServiceFinancing AvailableFree EstimatesMaintenance PlansLicensed & InsuredHeat Pump Specialist
    HVACPlumbingElectricalEmergency ServiceLicensed & Insured
    Google Rating
    4.9 ★ (1327 reviews)
    Phone
    (303) 678-5576

    Location

    Address: 1831 Boston Ave, Longmont, CO 80501

    Phone: (303) 678-5576

    Website: welzig-heating-and-air.com

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    Last updated April 16, 2026

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