
Tankless Water Heater Conversion Spokane WA
Ready to upgrade? Convert from tank to tankless for endless hot water, lower energy bills, and more space.
Service Overview
Converting from a traditional tank water heater to tankless is a smart upgrade that pays dividends for years. We handle the entire conversion process, from removing your old tank to sizing and installing the right unit, so you'll immediately enjoy endless hot water and lower energy bills.

Helpful Wrenchs & Resources
Estimate Your Cost
Get a rough estimate for your plumbing service
Our Services
Complete Conversion Service
Full-service conversion from tank to tankless.
- Professional sizing
- Gas line upgrades
- Venting installation
- Electrical upgrades if needed
- Old tank removal
- Permit handling
Gas Line Upgrades
Upgrade gas lines to support tankless water heaters.
- Line sizing calculations
- Pipe installation
- Pressure testing
- Code compliance
- Inspection coordination
- Safety certification
System Optimization
Optimize your new tankless system for peak performance.
- Temperature programming
- Flow rate optimization
- Hard water treatment
- Maintenance planning
- Warranty registration
- Operation training
Common Problems We Solve
Inadequate Gas Supply
Gas line upgrade required for proper tankless operation. We size and install correctly.

Why Choose Plumb Zebra?
Our Process
Assessment
We evaluate your current system, calculate hot water needs, and check gas line capacity.
Conversion Plan
We design the conversion including any needed upgrades and provide detailed pricing.
Installation
We complete the conversion including gas line work, venting, and tankless installation.
Testing & Training
We test thoroughly, optimize settings, and train you on operation and maintenance.

Maintenance Tips
Annual Descaling
After conversion, schedule annual descaling to maintain efficiency and prevent damage.
Frequency: Once per year
Frequently Asked Questions
How much does tankless conversion cost?
Complete conversions typically cost $4,000-$7,000 including the tankless unit, gas line upgrades, venting, and labor. Costs vary based on required upgrades. Utility rebates can offset $500-$1,000.
Will my gas line support a tankless water heater?
Many older homes need gas line upgrades for tankless. We assess your current line and upgrade if needed as part of the conversion. This ensures proper operation and safety.
How long does conversion take?
Most conversions are completed in one day (6-10 hours). Complex installations requiring extensive gas line work may take 2 days. We'll give you an accurate timeline upfront.
Is tankless conversion worth the cost?
For most families, yes! You'll save 30-40% on water heating costs, never run out of hot water, and gain valuable space. The system lasts 20+ years, making it a solid long-term investment.
Can any home convert to tankless?
Most homes can convert, but some may need electrical service upgrades or extensive gas line work. We assess your home and provide honest advice about feasibility and cost.
Schedule Your Tankless Water Heater Conversion Spokane WA Today
Get a free estimate and schedule your service with Spokane's trusted plumbing experts
Get In Touch
Call or Text
(509) 317-9009Hours
Monday – Friday: 7 AM – 6 PM
Saturday: 8 AM – 4 PM
24/7 Emergency Service Available
Emergency Service Available
For a plumbing emergency, call us instead of relying on the web form.
Call Now: (509) 317-9009







