Happy Drain Guys Plumbing — Fairfax, VA

Fast, Reliable Plumbing & Drain Service in Northern Virginia

Family-Owned for 12 Years. Licensed, Bonded & Insured.

Why Choose Us

Family-Owned Local Business

• Senior, Military & First-Time Customer Discounts

We Educate Every Customer

• 12+ Years of Experience

24/7 Emergency Service

• Licensed, Bonded & Insured
• Free Estimates

Featured Services

Kitchen / Bathroom Faucets

Install Water Softener

Residential & Commercial Services

Hot Water Heaters

Drain Cleaning

Water Damage Restoration

Sewer Main Line Repair / Installation

Install Water Lines & Sewer Lines

Full Bathroom or Kitchen Renovation

Your Trusted Local Plumbing Experts

At Happy Drain Guys Plumbing, we proudly serve a wide range of communities including Fairfax, Alexandria, Arlington, Woodbridge, Dumfries, Lorton, McLean, Vienna, Ashburn, Leesburg, Manassas, Burke, Reston, Centreville, Dale City, Great Falls, Chantilly, Oakton, Annandale, Springfield, Tyson, Falls Church, Sterling, and Brambleton. With 12 years of experience, we are a licensed, bonded, and insured family-owned business that stands out by providing exceptional service, educating every client, and offering special discounts for seniors, military personnel, and first-time customers. We provide free estimates on all projects and back our work with reliable warranties and guarantees. Our team is dedicated to delivering high-quality plumbing solutions while making every customer feel confident and cared for.

Water Heaters

Hot water is not optional. When it fails, it disrupts everything.

We handle

  • Repair of gas and electric water heaters
  • Full replacement of old or leaking units
  • Tankless water heater installation and upgrades
  • Temperature and pressure valve fixes
  • Pilot light, thermostat, and heating element issues

Why it matters

  • Prevents sudden failures and flooding
  • Improves energy efficiency
  • Extends equipment life

Leak Detection

Small leaks turn into big damage fast. We find them before they cost you.

We handle

  • Hidden water leak detection behind walls and slabs
  • Pipe leak identification without unnecessary damage
  • Water pressure testing
  • Moisture and water damage assessment
  • Emergency leak shutdown support

Why it matters

  • Stops mold and structural damage
  • Lowers water bills
  • Avoids major restoration costs

Toilets & Faucets

If it drips, runs, or won’t flush properly, it needs fixing.

We handle

  • Toilet repairs and full replacements
  • Running, leaking, or clogged toilets
  • Kitchen and bathroom faucet installation
  • Cartridge, valve, and seal replacements
  • Fixture upgrades for water efficiency

Why it matters

  • Saves water and money
  • Improves bathroom and kitchen usability
  • Prevents hidden leaks under cabinets and floors

    Gas Pipes

    Gas work is not DIY. It must be done right and safely.

    We handle

    • Gas pipe installation and rerouting
    • Gas leak detection and repair
    • Appliance gas line hookups
    • Pressure testing and code compliance
    • Emergency gas shutoff support

    Why it matters

    • Protects your family from fire and gas exposure
    • Ensures appliances run safely and efficiently
    • Meets local safety codes

    Remodels

    Plumbing is the backbone of any remodel. Get it wrong and everything suffers.

    We handle

    • Bathroom remodel plumbing
    • Kitchen remodel plumbing
    • Fixture relocation and upgrades
    • Water line and drain modifications
    • Coordination with flooring and restoration work

    Why it matters

    • Clean installs with no shortcuts
    • Proper slope, pressure, and drainage
    • Long-term reliability behind the walls

    Drains

    Slow drains are warnings. Backups are disasters.

    We handle

    • Drain cleaning and unclogging
    • Kitchen, bathroom, and floor drains
    • Hair, grease, and buildup removal
    • Hydro jetting where required
    • Preventive drain maintenance

    Why it matters

    • Prevents backups and overflows
    • Eliminates odors and slow drainage
    • Extends pipe life

    Sewers

    Sewer issues affect the entire property. This is not a wait-and-see problem.

    We handle

    • Sewer line inspections
    • Main sewer line repairs
    • Sewer line replacements
    • Blockage and root removal
    • Trenchless repair options when possible

    Why it matters

    • Avoids property damage and health risks
    • Fixes recurring backups at the source
    • Protects foundations and landscaping

    Re-piping

    Old pipes fail. Period.

    We handle

    • Whole-house repiping
    • Partial pipe replacements
    • Copper, PEX, and modern materials
    • Corroded or leaking pipe removal
    • Pressure and flow upgrades

    Why it matters

    • Improves water pressure and quality
    • Eliminates recurring leaks
    • Long-term fix instead of patchwork repairs

    Maintenance Plans

    Coupons & Special Offers

    Enjoy exclusive discounts on repairs and installations. These offers are limited-time and can be applied during your service visit.

    $50 Off Any Plumbing Repair

    Apply this coupon to any plumbing repair service.

    $100 Off Water Heater Installation

    Save big when installing a new water heater

    Free Service Call

    Get your service call fee waived with any paid repair.

    Senior & Military Discounts

    Special pricing available for seniors and military personnel.

    Need Plumbing Service? We’re Available 24/7